the UHF EarAmp User Manual
Contents
1. SAMSON UHF STEREO MONITOR AMP 4 Bass control trimpot Use the supplied screwdriver to adjust this as necessary As the bass control is turned counterclockwise bass response is reduced by up to 10 dB as it is turned clockwise bass response 15 increased by up to 10 dB The bass control affects frequencies at around 150 Hz 5 Treble control trimpot Use the supplied screwdriver to adjust this as necessary As the treble control is turned counterclockwise treble response is reduced by up to 10 dB as it is turned clockwise treble response is increased by up to10 dB The treble control affects frequencies at around 5 kHz 6 2 Stereo switch When set to the down Stereo position incoming left channel signal is routed to the left earbud and incoming right channel signal is routed to the right earbud In Stereo mode the Balance control see 14 on the following page can be used to increase the relative level of one channel or the other When set to the up 2 CH position both incoming channels are internally mixed to mono and routed to both the left and right earbuds The Balance control see 14 on the following page is then used to regulate the relative amounts of the two incoming signals See Appendix C on page 12 in this manual for more information EarAmp 2 STEREO OFF POWER F LI2. UHF WIRELESS IN EAR MONITOR OWNERS MANUAL U S Version SAMSON Table of Contents Introduction 1 System Features 2 QuickStart 3 Guided Tour Wireless EarAmp Transmitter Front Panel 4 Guided Tour Wireless EarAmp Transmitter Rear Panel 5 Guided Tour Wireless EarAmp Receiver 6 Setting Up and Using the Wireless EarAmp 8 Appendix A Setting the Wireless EarAmp Radio Frequency 10 Appendix B Wireless EarAmp Channel Plan 11 Appendix C Using 2 CH Mode 12 Appendix D Using Third Party Earpieces 13 Specifications 14 Produced by On The Right Wavelength for Samson Technologies Corp Copyright 1999 Samson Technologies Corp Printed October 1999 Samson Technologies Corp 575 Underhill Blvd P O Box 9031 Syosset NY 11791 9031 Phone 1 800 3 SAMSON 1 800 372 6766 Fax 516 364 3888 Introduction We know you like reading owners manuals but you ve just purchased of the most unique wireless audio products around and we want to tell you about it So before you plug in and start making music we d like to suggest you take just a few moments out to scan these pages We ll make it as painless as possible we promise and who knows you might just pick up a tip or two The Samson Wireless EarAmp is designed to bring professional in ear monitoring to a wide range of users By eliminating the need for loud onstage wedge monitors it allows you to hear yourself be
3. 800 842 8184 Microsonic 1421 Merchant Street Ambridge PA 15003 800 523 7672 13 Specifications SYSTEM Frequency Coverage Channels Available Channel Selection Transmitter Receiver RF Range System Modulation Noise Reduction Audio Frequency Response Audio Distortion S N Ratio Stereo Channel Separation TRANSMITTER RF Output Main Audio Inputs L amp Connectors Impedance Attenuator Level Daisy Chain Out L amp Connectors Electrical AUX Audio Inputs L amp R Connectors Impedance Attenuator Level Limiter Power RECEIVER Audio Output Power Audio Output Limiter Low Frequency EQ High Frequency EQ Loudness Switch Battery Requirement Low Battery LED Battery Life 614 to 662 MHz 128 8 groups with 16 channels each Direct frequency selection to nearest 25 kHz Front panel selection of group and channel or direct frequency select Backlit LCD indicates actual operating frequency at all times in addition to group and channel Auto programmed via RF data transfer from transmitter Program mode is activated by program switches on transmitter and receiver Approximately 300 feet 91 m FM Multiplex Stereo 50 kHz deviation of main carrier Samson compandor system 40 Hz to 15 kHz 0 8 nominal gt 80 dB gt 50 uV at receiver stereo or gt 15 uV at receiver mono 40 dB nominal 50 mW Neutrik Combo XLR or 1 4 phone jacks 40K Ohms balan
4. the EarAmp transmitter is rack mountable requiring just a single space Mount the supplied antenna to the transmitter by inserting the BNC connector and twisting clockwise until snug The antenna mounting is adjustable however it is best to begin with it in an upright position 2 Press gently up the EarAmp receiver s battery door release see 1 on page 6 and swing door open in order to access the battery compartment Note that the door is hinged and is not intended to be removed from the case Insert a 9 volt alkaline battery being careful to observe the polarity markings Warning Reversing the battery polarity may cause permanent damage to your EarAmp receiver 3 Turn the receiver power switch see 8 on page 6 The Battery LED see 13 on page 7 will light red if the battery is weak and needs to be replaced Once you ve verified battery strength turn the power switch Off again 4 Close the receiver battery door by swinging it gently upwards until you hear the door release click 5 Turn off all audio equipment mixers amplifiers etc in your system and make the physical cable connections between your mixer typically aux sends cue sends or line outputs and the Main inputs of your Wireless EarAmp transmitter WARNING Be sure to connect only line level inputs to the EarAmp transmitter connecting amplifier outputs or other powered speaker outputs can cause severe damage and will void yo
5. antennas in an upright position and set the Volume knob to minimum fully counterclockwise Do not place the earbuds in your ears yet If only a single EarAmp system is being used the transmitter can be placed in Frequency mode by pressing the front panel Frequency button the Up Down buttons can then be used to directly enter the desired radio frequency However if two or more transmitters and receivers are being used at the same location the Wireless EarAmp transmitter must be set to Group Channel mode by pressing the front panel Channel button In a multi transmitter setup a devices must be set to the same Group though each transmitter receiver pair must use its own Channel or intermodulation noise may occur Press both the Channel and Frequency buttons simultaneously the word Group will begin flashing The Up Down buttons can now be used to select the desired Group Once you ve selected the Group you want press the Channel button again and use the Up Down buttons to select a Channel within that Group see Appendix B on page 11 in this manual for a complete channel plan 8 Setting Up and Using The Wireless EarAmp 8b In the receiver turn the Program switch off then on towards the up arrow and then within ten seconds press and hold the transmitter s front panel Program button for at least three seconds in order to program the receiver when correctly programmed the TX LED on top of the receiver w
6. of Aux signal relative to the Main signal is reached If nothing is connected to the Aux Inputs see 3 above this should be left at its fully counterclockwise position completely off 6 RJ45 Serial Port Used to connect the Wireless EarAmp transmitter to a computer for optional remote control via software 7 Daisy Chain Inputs Outputs These balanced 1 4 TRS Tip Ring Sleeve jacks are wired in parallel with the Main inputs see 8 below and can be used to route the incoming Main signal to external devices at unity gain Alternatively they can be used as inputs bringing a third stereo or mono signal into the Wireless EarAmp transmitter albeit without an attenuator switch or level control if necessary Wiring is Tip hot Ring cold and Sleeve ground See the Setting Up and Using The Wireless EarAmp section on page 8 of this manual for more information 8 Main Inputs Connect incoming signal to these electronically balanced Combination connectors using either XLR or 1 4 TRS Tip Ring Sleeve connectors wired as follows Pin 2 or Tip hot Pin 3 or Ring cold and Pin 1 or Sleeve ground We recommend the use of balanced three conductor cabling wherever possible unbalanced two conductor 1 4 cables can also be inserted into these inputs but you ll get better signal quality and less outside noise and hum if you use balanced lines When connecting a monophonic signal use the left jack only and set the Stereo Mono swit
7. that both the transmitter and receiver in the Wireless EarAmp system always retain their RF settings even after being powered off in the case of the receiver even after the battery is removed 10 Appendix B Wireless EarAmp Channel Plan Wireless EarAmp Channel Plan All frequency values are in MHz 1 2 3 4 5 6 7 8 9 11 Appendix C Using 2 Ch Mode The Wireless EarAmp s unique dual 2 CH mode makes it possible for you to have direct control over the blend of two separate signals simply by turning the Balance knob If you re a vocalist the most typical application is to route the vocal signal only to one mixer aux send and the instrument accompaniment signal to the other aux send as shown in the illustration below This way by turning the Balance knob one way you ll hear more of your vocal and less of the instruments by turning it the other way you ll hear less of your vocal and more of the instruments Aux 1 out ou vocal instruments 7 mi Y Y Y Similarly if you re a guitarist you can route guitar signal only to one mixer aux send and a mix of all other signals to the other mixer aux send the Wireless EarAmp Balance control will then give you the ability to hear as mu
8. 2 Place a fresh battery in the receiver and turn it on momentarily to check it the receiver s Battery LED will light red if the battery is weak and needs to be replaced 3 Turn off all audio equipment in your system and connect your mixer s line aux or cue outputs to the transmitters Main inputs If you want to transmit additional signal use the Aux and or Daisy Chain inputs 4 Connect the supplied AC adapter don t use substitutes to the DC Input on the rear panel of the transmitter first looping the cable around the strain relief then plug it into a 3 pin grounded AC socket 5 Set the Phones Level and Input Level controls on the transmitter to minimum to the 10 position and then turn the transmitter on by pressing its Power switch the front panel LCD will light up 6 Turn on the power to the receiver place both of its antennas in an upright position and set the Volume knob to minimum fully counterclockwise Do not place the earbuds in your ears yet 7 Set the transmitter to either Group Channel mode by pressing the CH button or Frequency mode by pressing the FREQ button Group Channel mode must be used whenever there are two or more transmitters being used in the same location If in Group Channel mode use the Up Down buttons to select a Channel Press both the CH and FREQ buttons simultaneously to enable Group selection again using the Up Down buttons 7b If in Frequency mode use the Up Down
9. MITER LEVEL G 7 PGM Program switch In normal operation leave this switch in the up position towards the arrow This switch is also used to reprogram the receiver to a new RF frequency see the Setting Up and Using The Wireless EarAmp section on page 8 of this manual for more information 8 Power On Off switch As you might have guessed this is what you use to turn the Wireless EarAmp receiver on or off To conserve battery strength leave the unit off when it is not being used 9 Battery holder Insert a standard 9 volt alkaline battery here observing the plus and minus polarity markings shown We recommend the Duracell MN 1604 type battery Although rechargeable Ni Cad batteries can be used they do not supply adequate current for more than two hours WARNING Do not insert the battery backwards doing so can cause severe damage to the Wireless EarAmp and will void your warranty Guided Tour Wireless EarAmp Receiver 10 11 12 1314 15 Oy OS L R BALANCE LOUDNESS gt VOLUME 10 Headphone jack Connect the supplied stereo earbuds or third party earpieces see Appendix D on page 13 in this manual for more information to this standard 1 8 3 5 mm mini phone jack in order to monitor the signal being output by the Wireless EarAmp The level of t
10. Wireless EarAmp transmitter in Frequency mode See the Setting Up and Using The Wireless EarAmp section and Appendix A on pages 8 and 10 of this manual for more information 8 Up Down buttons Use these to select the desired Group or Channel when the transmitter is in Group Channel mode or to select the desired frequency when the transmitter is in Frequency mode See the Setting Up and Using The Wireless EarAmp section and Appendix A on pages 8 and 10 of this manual for more information 9 Display This backlit two line Liquid Crystal Display LCD shows the currently selected Group and Channel or the currently selected frequency 10 Program button Press and hold down this button for two seconds or more within ten seconds of turning on the receiver Program switch see 7 on page 6 in order to reprogram the receiver to utilize the currently selected frequency See Appendix A on page 10 of this manual for more information 11 Antenna In normal operation the antenna should be placed in a vertical position See the Setting Up and Using The Wireless EarAmp section on page 8 of this manual for more information 4 Guided Tour Wireless EarAmp Transmitter Rear Panel SON pes 1 DC input Connect the supp
11. buttons to select a frequency between 614 35 and 662 0 MHz in 25 kHz increments 8 To set the receiver to the same radio frequency turn its Program switch off then on towards the up arrow and then within ten seconds press and hold the transmitters Program button for at least three seconds When correctly programmed the receiver s TX LED will flash 9 Do a walkaround through the intended area of coverage while observing the receiver s TX LED as you do so it will light steadily green when receiving valid tone pilot signal Reposition antennas or select a different Group Channel or frequency as necessary 10 Turn on your mixer and set the level of the signal you re sending to the transmitter to unity gain 0 vu Then slowly raise the transmitter s Input Level control while observing the level meters the 0 segment should light frequently the 6 segment only infrequently If you have signal connected to the Aux inputs use a screwdriver to adjust the rear panel Aux Input control If you are sending very hot signal to the transmitter you may need to set either the Main and or Aux Attenuator switch to 15 dB The audio signal can be monitored by connecting a pair of headphones to the transmitter and slowly raising the Headphone Level control or by connecting the Daisy Chain outputs to an external monitoring system 11 Set the receiver s 2 CH Stereo mode switch as desired see Appendix for details Connect t
12. ced or 20K Ohms unbalanced Switch selected 0 15 dB 10 dBu nominal 11 dBu maximum attenuator out 4 dBu nominal 25 dBu maximum attenuator in 1 4 phone jacks Wired in parallel with main audio inputs 1 4 phone jacks 40K Ohms balanced or 20K Ohms unbalanced Switch selected 0 or 15 dB dedicated to the AUX inputs 10 dBu nominal 11 dBu maximum AUX attenuator out 4 dBu nominal 25 dBu maximum AUX attenuator in Limits maximum modulation to comply with regulatory limits Permits overdrive up to 20 dB with low distortion 12 VDC 500 mA from supplied AC adapter 200 mW CH 1 THD into 32 Ohm load 9 VDC 120 mW CH 1 THD into 32 Ohm load 7 VDC 70 mW 1 THD into 32 Ohm load 6 VDC Adjustable from gt 200 mW to lt 50 mW into 32 Ohms 10 dB 150 Hz 10 dB 5000 Hz Flat or Loudness contour selectable with slide switch 7 VDC to 9 VDC for full spec operation up to 120 mW audio output 6 VDC to 7 VDC for reduced spec operation 9 V Alkaline or Alkaline Plus Duracell MN1604 Ultra is suggested llluminates when voltage drops below 7 VDC 4 hours typical volume level dependent 14
13. ch see 2 above to the Mono position 9 Main Input Attenuator switch A 15 dB attenuator pad for the Main inputs In normal operation this switch should be set to the left O dB position If the incoming signal is too strong and is distorting set this to the right 15 dB position Guided Tour Wireless EarAmp Receiver 1 Battery door release Press this latch gently upwards in order to open the battery door and access the controls contained within When closing the battery door swing it gently upwards until you hear this latch click EarAmp 2 Antennas normal operation these two antennas should be placed 1 a vertical position however the swivel mountings can be used to adjust the antenna positioning as necessary See the Setting Up and Using The Wireless EarAmp section on page 8 of this manual for more information 3 Limiter level control trimpot Use the supplied screwdriver to adjust this as necessary The Wireless EarAmp s built in limiter circuitry is designed to protect your ears against signal overload As the limiter level control is turned clockwise the limiter threshold is reduced causing the limiting circuitry to kick in at lower input signal strengths As it is turned counterclockwise the limiter threshold is increased so that the limiting circuitry only operates at relatively high input signal strengths
14. ch or as little of your instrument relative to the overall mix as you like 12 Appendix D Using Third Party Earpieces If you listen to the earbuds supplied with the Samson Wireless EarAmp on their own they may sound a little overbright to you That s because they have been specifically designed to allow a certain degree of outside sounds to enter so as to yield a natural sound onstage where bass frequencies will leak in to make for a full spectrum tone If you prefer you can subsitute the earpiece of your choice for these earbuds even standard Walkman type headphones will work well You may even want to use an earbud that has been custom molded to your ear Feel free to contact the following manufacturers for information about the custom earpieces they offer Note that Samson makes no claims representations or warranties regarding these manufacturers or their products Sensaphonics 660 North Milwaukee Chicago IL 60622 312 432 1714 Westone Labs P O Box 15100 Colorado Springs CO 80935 719 540 9333 Ultimate Ears 2657 Windmill Parkway 391 Henderson NV 89014 702 263 7805 Firehouse Productions RR2 Box 256 Red Hook NY 12571 914 758 9898 Precision Earmold Laboratories 830 Sunshine Lane Altamonte Springs FL 32714 800 327 4792 The Earmold Company Ltd P O Box 3320 Salem VA 24153 800 798 2196 Great Lakes Earmold Laboratory 750 Ken Mar Industrial Parkway Broadview Heights OH 44147
15. e control clockwise increases the relative amount of right channel signal that is the signal in your right ear and turning it counterclockwise increases the relative amount of left channel signal that is the signal in your left ear When the Wireless EarAmp is operating in 2 CH mode that is when the 2 CH Stereo switch see 6 on the previous page is set to 2 CH both channels are internally mixed to mono and routed to both earbuds In 2 CH mode turning the balance control clockwise increases the relative amount of right channel signal though it will be heard in both ears and turning it counterclockwise increases the relative amount of left channel signal again heard in both ears See Appendix C on page 12 in this manual for more information 16 Belt clip Use this to clip the Wireless EarAmp receiver to your belt for convenient operation Setting Up and Using The Wireless EarAmp Setting up your Wireless EarAmp is a simple procedure which takes only a few minutes 1 Remove all packing materials save them in case of need for future service and locate the Wireless EarAmp transmitter so that there is an unobstructed line of sight between it and the receiver s in your system any number of receivers all receiving the same signal can be used with a single transmitter Be sure however that the receivers never come within 10 feet of the tranmitter antenna For convenience
16. guided tour of its various controls Then we ll detail how to set up the Wireless EarAmp as well as how to adjust it for the best sound quality Finally we ll wrap things up with reference appendices and full specifications You ll also find a warranty enclosed please don t for get to fill it out and mail it so that you can receive online technical support and so we can send you updat ed information about other Samson products in the future Also be sure to check out our website http www samsontech com for complete information about our full product line SPECIAL NOTE Should your Wireless EarAmp system ever require servicing a Return Authorization number RA is necessary Without this number the unit will not be accepted Please call Samson at 1 800 372 6766 for a Return Authorization number prior to shipping your unit Please retain the original packing materials if possible return the Wireless EarAmp in its original packing materials WARNING This product is capable of causing permanent damage to your hearing if used at excessive volumes To protect your hearing the Samson Wireless EarAmp should always be used at as low a volume as possible We recommend that you stringently follow the guidelines established by the U S Occupational Safety Health Administration OSHA regarding maximum time exposure at various sound pressure levels e Don t use this product for more than 8 hours at 90 dB SPL e Don
17. he supplied earbuds or third party earpiece to the receiver s headphone jack and place them in your ears Slowly turn up the receiver s volume control until you achieve the desired level The EarAmp receiver should always be used at as low a volume as possible If you hear ringing in your ears turn down the volume control and operate it at a lower level 12 Adjust the receivers Balance control and Limiter Level Bass and Treble trimpots as desired If you re operating at low signal levels turning the loudness control will help improve legibility Close the battery door and clip the receiver to your belt Guided Tour Wireless EarAmp Transmitter Front Panel 00000 9 ge 0 1 Power switch Use this to turn the main power on and off When the transmitter is on the display section see 9 below is lit 2a 1 4 Headphone jack Connect any standard stereo headphones to this jack via a 1 4 TRS plug in order to monitor the audio signal connected to the transmitter s rear panel input jack s see 3 7 and 8 on the following page The built in headphone preamp delivers approximately 200 mw of power 2b 1 8 35 mm Headphone jack Connect Walkman style stereo headphones to this jac
18. he headphone signal is set by adjusting the Volume control see 12 below Maximum output is 200 mW 32 ohms 11 Loudness switch At normal listening levels this should be left off with the switch to the left When using the Wireless EarAmp at low signal levels turning this on placing the switch on the right will improve legibility by boosting both bass and treble frequencies 12 Volume control Use this to set the level of the signal in connected earbuds 13 Battery LED This LED lights red when battery level is low and the battery needs to be replaced 14 TX LED This LED lights steadily green whenever the Wireless EarAmp receiver is receiving RF signal from the transmitter and flashes when the receiver is being reprogrammed to operate at a different radio frequency Both the receiver and transmitter must be set to the same RF frequency for correct operation See the Setting Up and Using The Wireless EarAmp section on page 8 of this manual for information on how to program the receiver to operate at the selected transmitter frequency 15 Balance control Adjusts the relative levels of the two signals being received by the Wireless EarAmp When set at the center 12 o clock position both signals are presented to connected earbuds at equal strength When the Wireless EarAmp is operating in Stereo mode that is when the 2 CH Stereo switch see 6 on the previous page is set to Stereo turning the balanc
19. ill flash see Appendix A on page 10 in this manual for more details Note that the Program switch must always be on toward the up arrow for correct operation of the receiver 9 When first setting up the Wireless EarAmp system in a new environment it s always a good idea to do a walkaround while experimenting with different frequency settings observing the receiver s TX LED as you do so If the light fails to light steadily as you move through the area that needs to be covered the receiver may be receiving interference and the selected frequency or Group Channel is probably unsuitable for use Always pick the Group that has the greatest number of clear Channels and the Channel providing the strongest signal The basic rule of thumb for successful wireless installations is to always try to minimize the distance between transmitter and receiver as much as possible though not less than 10 feet and also to try to maintain line of sight between the two so that the person using the receiver can see the transmitter antenna You may also be able to improve RF reception by relocating the transmitter or repositioning antennas 10 Once you ve settled on the radio frequency you want to use it s time to set the audio levels Turn on your mixer and set the level of the signal you re sending to the transmitter to unity gain 0 vu Then slowly raise the transmitter s front panel Input Level control while observing the level meters Fo
20. ing audio signal to the transmitter Transmitter operates in stereo or mono mode and provides dual inputs Main and Aux with independently adjustable input level for each as well as a five segment input level VU meter to allow optimum gain settings In addition a large back lit LCD display also shows the currently selected Group Channel and radio frequency Switchable 15 dB pad for main and auxiliary inputs allows the Wireless EarAmp system to be used with a wide variety of signal sources Transmitter is rack mountable in any standard 19 rack taking only a single space for portability and easy integration into existing systems Computer interface allows optional remote control of all transmitter functions via software Rugged construction of all components makes the Wireless EarAmp eminently roadworthy Typical usage Actual battery life may vary depending upon headphone output level 2 QuickStart If you ve had some prior experience using wireless systems these QuickStart instructions will get you up and running with your Wireless EarAmp system in a matter of minutes Detailed instructions for setting and using your Wireless EarAmp can be found on pages 8 11 of this manual and the Guided Tour sections on pages 4 7 provide full descriptions of all transmitter and receiver controls and displays 1 Physically place the transmitter where it will be used install its antenna and extend it vertically
21. k via a 1 4 TRS plug in order to monitor the audio signal connected to the transmitter s rear panel input jack s see 3 7 and 8 on the following page 3 Phone Level control This knob sets the level of the signal sent to the headphone jacks see 2a and 2b above WARNING To avoid possible damage to connected headphones or worse yet to your ears always turn this all the way off to the fully counterclockwise 0 position before plugging in a pair of headphones then raise the level slowly while listening 4 Input Level control This knob sets the incoming level of the audio signal connected to the transmitter s Main rear panel input jack s see 3 on the following page See 5 below 5 Level meters These five segment ladder meters similar to the VU bar meters used on audio devices show the strength of incoming audio signal For best signal to noise ratio adjust the Input Level control see 4 above so that the yellow 0 segment lights frequently with the red 6 segment lighting only infrequently during the very highest signal peaks If you hear distortion back the control off slightly 6 CH Channel button Press this button to place the Wireless EarAmp transmitter in Group Channel mode See the Setting Up and Using The Wireless EarAmp section and Appendix A on pages 8 and 10 of this manual for more information 7 FREQ Frequency button Press this button to place the
22. lied power adapter here using the strain relief as silkscreened on the rear panel WARNING The substitution of any other kind of power adapter can cause severe damage to the Wireless EarAmp transmitter and will void your warranty 2 Stereo Mono switch When set to Stereo the incoming left and right audio signal s are kept separate when set to Mono only signal connected to the left Main and or Aux input see 4 and 8 below is used the right signal is muted and is transmitted to both channels of the receiver 3 Aux Inputs Use these two balanced 1 4 TRS Tip Ring Sleeve jacks when you wish to connect a secondary signal to the Wireless EarAmp transmitter Wiring is Tip hot Ring cold and Sleeve ground We recommend the use of balanced three conductor cabling wherever possible unbalanced two conductor 1 4 plugs can also be inserted into these inputs but you ll get better signal quality and less outside noise and hum if you use balanced lines When connecting a monophonic signal use the left jack only and set the Stereo Mono switch see 2 above to the Mono position 4 Aux Input Attenuator switch A 15 dB attenuator pad for the Aux inputs In normal operation this switch should be set to the left O dB position If the incoming signal is too strong and is distorting set this to the right 15 dB position 5 Aux Input Level control Use a screwdriver to adjust this control until the desired level
23. nction allows RF resetting at the push of a single button PLL synthesized technology minimizes spurious emissions and provides solid stable performance Convenient belt clip for and flesh colored ear buds for unobtrusive nearly invisible usage Receiver offers dedicated volume and center detented balance controls along with independent bass and treble controls allow each user to set up the optimum in ear mix There s even a Loudness switch for improved legibility when operating at low signal levels Receiver provides stereo and dual mono 2 CH modes for maximum flexibility 2 mode the balance control enables you to adjust the blend of the two incoming signals which are mixed internal ly to mono and routed to both ear buds Receiver has a high powered 200 mW 1 8 Walkman type headphone output while the transmitter offers dual 1 4 and 1 8 Walkman type headphone jacks Built in adjustable limiter helps protect your ears from transients and signal overloads Receiver utilizes microprocessor true diversity for maximum range tone key squelch for rejection of spurious signals and noise reduction for crystal clear sound Receiver operates on a standard 9 volt battery with battery life of four hours or more Battery LED indicator shows you when the receiver battery needs to be replaced Unique daisy chain parallel inputs outputs allow a third signal source to be input or external monitoring of incom
24. ng all frequencies are available Alternatively Frequency mode allows you to directly dial in any radio frequency between 614 35 and 662 0 MHz in 25 kHz increments Either mode can be used when only one Transmitter with any number of receivers is being utilized however in locations where more than one Transmitter is used we strongly advise the use of Group Channel mode Note that Group numbers correspond to U S TV channel numbers making it easy to select a known vacant channel To set the Wireless EarAmp radio frequency in Group Channel mode 1 2 3 Press the transmitter s front panel CH Channel button this sets Group Channel mode Press the front panel CH Channel and FREQ Frequency buttons simultaneously The word Group in the display will begin flashing Use the UP DOWN buttons to select the desired Group from 38 to 45 these correspond to U S TV channel numbers Note that if you make no selection within five seconds the word Group will stop flashing If the word Group is still flashing the display press the Channel button to stop it flashing Use the UP DOWN buttons to select the desired Channel from 1 to 16 within the selected Group The bottom line of the display shows the actual frequency of that Channel see the Channel Plan in Appendix B on the following page In the receiver turn the Program switch off then on towards the up arrow and then within ten seconds p
25. piece see Appendix D on page 13 to the receiver s headphone jack see 10 on page 7 and place them in your ears 14 Finally while playing or singing at a normal performance level slowly turn up the receivers volume control until you achieve the desired level The EarAmp receiver should always be used at as low a volume as possible If you hear ringing in your ears turn down the volume control and operate it at a lower level 15 Adjust the Balance control as needed in order to get the best blend of the incoming signals If necessary use the supplied screwdriver to adjust the Limiter Level Bass and Treble trimpots see 3 4 and 5 on page 6 in order to optimize the sound you re hearing If you re operating at low signal levels turning the loudness control on will help improve legibility 16 Close the battery door and clip the receiver to your belt If you encounter difficulty with any aspect of setting up or using your Wireless EarAmp you can call Samson Technical Support 1 800 372 6766 between 9 AM and 5 PM EST Appendix A Setting the Wireless EarAmp Radio Frequency The Samson Wireless EarAmp is extraordinarily frequency agile offering more than 128 different radio frequencies and two different modes of operation In Group Channel mode you can access a factory programmed channel plan see Appendix B on the following page that allows you to use up to sixteen different systems together at the same location assumi
26. r best signal to noise ratio adjust the Input Level control so that the yellow 0 segment lights frequently with the red 6 segment lighting only infrequently during the very highest signal peaks If you have signal connected to the Aux inputs use a screwdriver to adjust the rear panel Aux Input control If you are sending very hot signal to the EarAmp transmitter you may need to set either the Main and or Aux Attenuator switch to 15 dB To monitor the signal arriving at the transmitter either connect a set of headphones to either headphone jack and slowly raise the Headphone Level control or connect the rear panel Daisy Chain outputs to an amp and speakers or a pair of self powered speakers If you hear distortion back the Input Level control off slightly 11 Set the receivers 2 CH Stereo mode switch as desired In Stereo mode the two incoming signals are routed to the left and right earbuds respectively In 2 CH mode the two incoming signals are inter nally mixed to mono and both signals are routed to both earbuds If the signal to be monitored is mono set the 2 Stereo switch to the up 2 CH position See Appendix on page 12 in this manual for more information about the use of 2 CH mode 12 Start by setting the receiver s Balance control see 15 on page 7 to its center detented position and by turning the Loudness switch see 11 on page 7 off 13 Connect the supplied earbuds or third party ear
27. ress and hold the transmitter s front panel Program button for at least three seconds until the TX LED on the receiver flashes This confirms that the receiver is set to the same radio frequency as the transmitter The TX LED in the receiver will always light steadily green when it is correctly set to the same frequency as the transmitter and is receiving pilot tone If it does not do so reprogram it following step 5 above until you see the TX LED flash To set the Wireless EarAmp radio frequency in Frequency mode 1 Press the transmitter s front panel FREQ Frequency button this sets Frequency mode Use the UP DOWN buttons to select the desired Frequency from 614 350 MHz to 662 000 MHz Each press of the UP DOWN button increments or decrements the frequency by 25 kHz Press and hold down the UP or DOWN button to rapidly increase or decrease the frequency In the receiver turn the Program switch off then on towards the up arrow and then within ten seconds press and hold the transmitter s front panel Program button for at least three seconds until the TX LED on the receiver flashes This confirms that the receiver is set to the same radio frequency as the transmitter The TX LED in the receiver will always light steadily green when it is correctly set to the same frequency as the transmitter and is receiving pilot tone If it does not do so reprogram it following step 5 above until you see the TX LED flash Note
28. t use this product for more than 4 hours at 95 dB SPL e Don t use this product for more than 2 hours at 100 dB SPL e Don t use this product for more than 1 hour at 105 dB SPL e Don t use this product for more than 1 2 hour at 110 SPL e Don t use this product for more than 15 minutes at 115 dB SPL Don t operate at listening levels of greater than 120 dB SPL Pay attention to what your ears are telling you Ringing is a sign that you have set the gain levels too high and that damage may result We recommend that you consult with a qualified audiologist if you exhibit ringing or any other symptoms 1 Wireless EarAmp System Features The Samson Wireless EarAmp system utilizes state of the art technology in personal monitoring lts main features include Excellent audio quality with superior frequency response and low distortion An extraordinary degree of frequency agility The operating frequency can be selected either by Group and Channel there are 8 Groups of 16 Channels each or by direct frequency selection in 25 kHz increments between 614 35 and 662 0 MHz This makes the Wireless EarAmp eminently suitable for traveling performances and allows it to be used in even the most RF hostile urban environments Group numbers correspond to U S TV channel numbers so it is easy to select a known vacant channel Any number of receivers can be used with a single transmitter Unique automatic receiver program fu
29. tter greatly reduces feedback problems and makes the overall sound coming from the stage significantly cleaner You ll find that this portable lightweight system provides superlative audio quality and extensive control at an extremely affordable price Capable of operating in both stereo and dual mono 2 channel mode the Wireless EarAmp receiver provides individual volume and balance controls for the best possible mix separate bass and treble controls to fine tune the signal and a built in adjustable limiter to protect your ears The Wireless EarAmp transmitter also offers a host of advanced features including stereo mono operation dual stereo inputs with independent level controls and 15 dB attenuation pads dual headphone outputs with dedicated level control input outputs for routing signal to or from external devices a large backlit LCD display and a 5 segment audio VU meter there s even provision for optional computer remote control Operating in the 614 662 MHz range the Wireless EarAmp system is extraordinarily frequency agile meaning that it can be used almost anywhere in the United States and a unique automatic programming feature allows the receiver to instantly be set to the same radio frequency as the transmitter with just the push of a single button In these pages you ll find an overview of Wireless EarAmp features a Quickstart for those of you with wireless experience and a
30. ur warranty If you want to transmit additional signal use the Aux inputs and or the Daisy Chain inputs Note that the Daisy Chain inputs can also serve as outputs routing the signal connected to the Main inputs at unity gain We recommend the use of balanced three conductor cabling wherever possible unbalanced two conductor 1 4 plugs can also be inserted into these inputs but you ll get better signal quality and less outside noise and hum if you use balanced lines When connecting stereo signals set the rear panel Stereo Mono switch to the Stereo position When connecting monophonic signal s use the left jack s only and set the rear panel Stereo Mono switch to the Mono position 6 Connect the supplied power adapter to the transmitter s rear panel DC connector first looping the cable around the strain relief as silk screened on the rear panel and plug the other end into any 3 pin grounded AC socket WARNING The substitution of any other kind of power adapter can cause severe damage to the Wireless EarAmp transmitter and will void your warranty 7 Turn the Phones Level and Input Level controls on the EarAmp transmitter completely counterclockwise to the 10 position and depress the front panel power switch to turn the unit on The display section will light up 8 Next select the radio frequency you wish to use for your transmitter and receiver s Turn on the power to your Wireless EarAmp receiver place both
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