OSD Audio AMP120 audio amplifier
Contents
1. that Produce heat Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two Blades with one wider than the other A grounding type plug has two blades and a third grounding Prong If the provided plugs does not fit Into your outlet consult an electrician for replacement of The obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at the plugs convenience Receptacles and at the point where they exit form the appliance 11 Only use attachments or accessories specified by the manufacturer 12 Unplug the apparatus during lightning storms or when unused for long periods of time 13 Refer all servicing to qualified personnel Servicing is required when the apparatus has been Damaged in anyway such as power supply cord or plug is damaged liquid has been spilled or Objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does Not operate normally or has been dropped ONDARON co This appliance shall not be exposed to dripping or splashing water and no object filled with liquids Such as vases shall be placed on apparatus mee MOORL AMP 120 STEREO Pawan ami Speakers PowsR Congratulations on your purchase of an OSD Powered Amp 120 Powered Amplifier Please take a few moments to read this entire manual and be sure to retain this document for future reference please read and observe all safety instructions d2. 1 Unplug the AMP120 2 Set the Stereo Bridge switch to Stereo 3 Connect the audio line output from a stereo preamplifier or source to the left and right Line 2 input jacks of the AMP120 for secondary source 4 Connect the audio line output from the primary source to the Line 1 input jacks in the same manner 5 Connect your speakers to the terminals observing proper polarity 6 Restore power to the amplifier Use the front panel knobs for Balance and Volume adjustments TECHNICAL SPECIFICATIONS AMP120 Amplifier Continuous Output Power GOW per channelat 8 ohms lt 1 0 THD N 1kHz 75W per channel at 4 ohms 160W bridged mono at 8 ohms Signal to Noise Ratio 100dB A weighted Frequency Response 10Hz to 30kHz 0 0dB 3 0dB 8 ohms 1W Input Sensitivity 900mV for 50W at 8 ohms Crosstalk gt 70dB 1 kHz Power Requirements 120 VAC 60Hz 4 2A Dimensions 16 5 W x 8 D x 2 5 H 41 9 x 20 3 x 6 4 cm Weight 10 4 Ibs 4 68 kg SYSTEM CONFIGURATION BRIDGED MODE In this mode both the left and right channels are combined for a higher power mono output NOTE The minimum impedance for the total load connected to a pair of channels in the bridged mode is 8 ohms Bridged Mode 1 Unplug the AMP120 2 Set the Stereo Bridge switch to Bridged Mono 3 Connect the line out from a preamplifier or source to the right channel Line 2 input of the AMP120 Do not connect any input to the Left channel input 4 On Speaker A conn
3. AMP120 E Powered Amplifier OWNER S MANUAL TO PREVENT FIRE OR SHOCK HAZARD DO NOT USE THIS PLUG WITH AN EXTENSION CORD RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE TO PREVENT ELECTRICAL SHOCK MATCH WIDE BLADE PLUG TO WIDE SLOT FULLY INSERT RISK OF ELECTRIC SHOCK DO NOT OPEN A CAUTION i This lighting flash with arrowhead Warning To reduce the risk of The exclamation point within the symbol within an equilateral triangle electric shock do not remove equilateral triangle is intended to is intended to alert the use to the cover or back no user alert the user to the presence of presence of un insulated dangerous servicing to qualified service important operating and Voltage within the products enclosure personnel maintenance servicing that may be of sufficient magnitude instructions in the literature t constitute a risk of electric shock accompanying suppliance b persons IMPORTANT SAFETY INSTRUCTIONS Read these instructions Keep these instructions Read all warnings Follow all Instruction Do not use this apparatus near water Clean only with dry cloth Do not block any ventilation openings Install in accordance with the manufacturers instructions Do not install near heat sources such as radiators heat registers stoves or other apparatus Including amplifiers
4. ce the signal ends the amplifier turns off Protection Circuitry Special circuitry has been designed into the amplifier to safeguard under a short circuit condition A faulty speaker can also cause a short circuit condition If this fault condition occurs turn off the amplifier and check speakers for short circuit conditions when appropriate Unswitched Outlet The AMP120 amplifier has a built in outlet on the back panel This 120 VAC outlet provides 400W unswitched power for a device such as a small powered subwoofer This switch provides power as long as the AMP 120 is plugged into an outlet whether or not the unit itself is powered on Speaker Cable When connecting speakers to the AMP120 amplifier use a minimum 16 gauge and maximum 12 gauge stranded copper cable Avoid leaving stray strands and keep polarity consistent SYSTEM CONFIGURATION STEREO MODE The AMP120 dual source capability If two sources are used connect the source you want to listen to most of the time to Line 2 secondary input and the source you listen to less to the Line 1 primary input Whenever the Line 1 primary source becomes active that signal will take priority over the distributed audio signal on the Line 2 secondary input The signal remains active but not heard on the Line 2 input and once the Line 1 audio signal is muted or turned off the AMP120 will automatically switch back to the Line 2 secondary audio signal Stereo Mode
5. ect the negative lead of the speaker cable to the L terminal Connect the positive lead of the speaker cable to R terminal See the Bridge markings on the terminals on the rear panel An 8 ohm minimum load is recommended 5 Restore power to the amplifier 6 On the front panel set the Balance to center and set the Volume to Min minimum Adjust the output with the volume control to the desired level Right Left e tigt ft 7 va R Fa e p E Bridged Mode Connection Detail WARRANTY amp REPAIR OSD AUDIO Warrants its amplifier products against defects in materials and workmanship for a limited period of time For a period of two years from date of purchase we will repair or replace the product at out option without charge for parts and labor Customer must pay all parts and labor charges for factory refurbished products Expires after ninety 90 days from date of original purchase 4 OSD Audio 775 Columbia St Brea CA 92821 www osdaudio com Tel 562 697 2600 Fax 714 256 8300
6. etailed on page Note If any part of this product is damaged or missing Please call OSD Audio Return Department Installation The AMP120 amplifier can be placed on a shelf in an equipment rack or on a table or cabinet Be sure to allow some clearance for ventilation and heat dissipation AMP120 Powered Amp oli Using the controls Front Panel Power On the front of the AMP 120 are the power button plus speaker selector a master balance and a master volume adjustment Power the front panel switch will manually switch the power on or off Speaker Selector select speaker pair A main or speaker pair B auxiliary for audio output You can use speakers A and B together as long as the speakers are at a minimum 8 ohm impedance Balance adjust speaker output balance between right and left channels The default setting is at center Volume adjust the speaker output volume If using Bridged mode set the volume at minimum then adjust to the desired level Using The Controls Back Panel Manual Auto On The AMP120 amplifier can be turned on manually or automatically by setting a switch on the rear panel For manual power on or off press the Power button on the front panel For automatic power on set the switch to Auto On and place the front panel power button in the On position When music is sensed on either input RCA connector the amplifier s signal sensing sends a command for it to power on On
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