Lexicon RX-7 User's Manual
Contents
1. EE EE Unbalanced Input Connectors XLR Balanced Input Connectors Chassis Ground Be wo Remote Trigger 5 Master Power Switch Circuit Breaker 6 AC Power Connector 7 Speaker Output Connectors 2 6 ZX 7 RX 7 Basic Operation 1 amp 2 UNBALANCED BALANCED INPUT 1 TO 7 CONNECTORS Provides audio input for the speakers connected through the unbalanced RCA inputs or balanced XLR inputs The illustration below shows the appropriate cable pin out for XLR connectors Cable End Caution Never make or break connections to the ZX 7 RX 7 unless the ZX 7 RX 7 and all associated components are powered off Do not connect the outputs of one channel to the outputs of other channels or to other amplifiers 3 CHASSIS GROUND Provides a means of grounding the power amplifier to another component within your configuration in order to eliminate ground loop 4 REMOTE TRIGGER INPUT Enables the ZX 7 RX 7 to be controlled by the MC 12HD MC 8 or other external devices with a 3 3V DC minimum to 24V DC maximum trigger output Connect the trigger output of the external device to the TRIGGER INPUT of the ZX 7 RX 7 amplifier The ZX 7 RX 7 will automatically respond when the external device is powered on and off When the controlling device is turned on the amplifier will turn on after a delay This delay is intentional and serves to protect the speakers while the unit stabilizes During start up you may h2. 2 Contact Lexicon Customer Service at 781 280 0300 Visit www lexicon com for frequently asked questions and additional troubleshooting information Note Visit the knowledge base at http www lexicon com kbase for answers to frequently asked questions and additional troubleshooting information MAINTENANCE Routine maintenance should be performed on a periodic basis Clean the exterior surfaces of the unit with a soft dry lint free cloth Do not use alcohol benzene acetone based cleaners or strong commercial cleaners Do not use a cloth made with steel wool or metal polish If the unit is exposed to a dusty environment a low pressure blower may be used to remove dust from its exterior 3 3 A N Appendix SPECIE ALIONS EE Cm A 2 Declaration of Conformity A 3 Appendix Lexicon SPECIFICATIONS Specifications are subject to change without notice RX 7 Performance Output Power 200W RMS per channel into 8 ohms from 20 Hz 20 kHz Power Requirements 120 VAC 14A 60 Hz 230 VAC 6A 50 60 Hz Audio Input Connectors Frequency Response 20 Hz to 20 kHz 0 1 0 2 dB ZX 7 I RX 7 7 RCA 7 XLR THD Less than 0 05 at full rated FTC power 20 Hz 20k Hz Less than 0 005 at full FTC power at 1 kHz Signal to Noise Ratio Greater than 105 dB below rated full rated power A Weighted Audio Output
3. controller or surround processor When using the ZX 7 RX 7 for the first time you should re set the output levels of the channels on your processor 2 10 ZX 7 RX 7 Basic Operation PROTECTION MODE The ZX 7 RX 7 is equipped to protect itself against potentially damaging conditions such as overheating mis wiring and electrical failures Under such conditions the ZX 7 RX 7 will enter a protection mode When this occurs the unit will mute to protect itself and speakers from potential damage If the ZX 7 RX 7 enters protection mode mutes itself 1 Immediately power off the unit with the rear panel master power switches and disconnect all AC power cords 2 Examine all speaker connections to ensure there are no shorts Power on the ZX 7 RX 7 If the unit remains in a muted state contact Lexicon customer service for assistance 3 Troubleshooting amp Maintenance UE ele Sin ES ayapana eo Ge N N NE 3 2 Maintenance ii us Se EE asa u corre ret oe oL bebo epa bedsores 3 3 Troubleshooting amp Maintenance Lexicon TROUBLESHOOTING The amplifier does not power on 1 Check the rear panel circuit breakers Ensure breakers have not been tripped 2 Attempt to power on the amplifier with the front panel Standby button 3 Make sure all rear panel power switches are set to the on position 4 Examine the power cords to ensure a good connection between the rear panel AC input
4. 221mm without feet RX 7 7 95 inches 202mm with feet RX 7 6 95 inches 177mm without feet Width ZX 7 and RX 7 17 3 inches 439mm Depth ZX 7 20 3 inches 516mm Overall with Handles RX 7 18 5 inches 470mm Overall with Handles A 2 ZX 7 RX 7 Appendix DECLARATION OF CONFORMITY Application of Council Directive s 2004 108 EEC and 73 23 EEC as amended by 93 68 EEC Standard s to Which Conformity is Declared EN55013 2001 A1 2003 EN55020 2002 A1 2003 A2 2005 EN61000 3 3 1995 A1 2001 EN60065 2002 Manufacturer Harman Specialty Group 3 Oak Park Drive Bedford MA 01730 1413 USA The equipment identified here conforms to the Directive s and Standard s specified above Type of Equipment Power Amplifier Model Lexicon ZX 7 and RX 7 Date March 2007 Harman Specialty Group Vice President of Engineering 3 Oak Park Drive Bedford MA 01730 1413 USA Tel 781 280 0300 Fax 781 280 0490 LIMITED WARRANTY The Harman Specialty Group offers the following warranty on this product A valid serial number is required for warranty coverage This warranty protects the original retail purchaser for a period of five 5 years parts and labor from any failure as a result of original manufacturing defects so long as 1 Theproduct was purchased within the 50 United States its territories or Canada The dealer from whom the this product was purchased was authorized to sell such p
5. RIGHT SIDE RIGHT REAR CENTER LEFT REAR LEFT SIDE LEFT ed TRIGGER INPUT 4 Pe L e oa Of E O O O LY Class 2 Wiring A S 1 Unbalanced Input Connectors 5 Master Power Switch Circuit Breaker 2 XLR Balanced Input Connectors 6 AC Power Connector 3 Chassis Ground 7 Speaker Output Connectors 4 Remote Trigger 2 4 ZX 7 RX 7 Basic Operation REAR PANEL ZX 7 120 VAC OVERVIEW EN ng IN P TS _ _ _ _ _ Y RIGHT SIDE RIGHT REAR CENTER LEFT REAR LEFT SIDE LEFT puce TRIGGER INPUT SE o Class 2 Wiring AN OUTP e 2 o FIT 1 Unbalanced Input Connectors 5 Master Power Switch Circuit Breaker 2 XLR Balanced Input Connectors 6 AC Power Connector 3 Chassis Ground 7 Speaker Output Connectors 4 Remote Trigger 2 5 Basic Operation Lexicon REAR PANEL RX 7 OVERVIEW RIGHT RIGHT SIDE D OPE oss 959 RX 7 LEXICON O DESIGNED AND ASSEMBLED IN U S A SERIAL NO PIN2 PIN1 _ J u RIGHT REAR NS RIGHT REAR INPUTS Class 2 Wiring OUTPUTS D CENTER LEFT REAR LEFT SIDE RU CHASSIS TRIGGER INPUT GROUND LEFT REAR LEFT SIDE RIGHT SIDE X
6. The cable has an insulated center conductor with a braided shield surrounding it These are protected by the outer black jacket The inner conductor is the positive lead and the braided shield is the negative lead Snip the connector off one end of the trigger cable and remove about 3 4 of the outer black jacket Be careful not to nick or cut the braided shield strands Carefully unweave the braided shield and twist the loose strands into a tight group Strip about 1 4 of the insulation off the center conductor Insert this into the terminal of the powered source Insert the twisted group of shield braid wires into the terminal of the powered source Fasten securely You should also use an electrical meter if possible 2 9 Basic Operation Lexicon REMOTE POWER ON WITH EXTERNAL AC TO DC POWER CONVERTER If your preamplifier processor or receiver does not have a dedicated trigger jack it is still possible to activate the unit for automatic power on when a switched outlet is available on the source device rear panel To control the ZX 7 RX 7 in this instance a small AC to DC power converter capable of delivering a 3 3V DC minimum to 24V DC maximum signal is required The DC voltage should terminate in a standard 1 8 mini plug How to make connections for remote power on using external AC to DC Power converter 1 Plug the AC adapter into a switched outlet that will be activated when you wish to have the amplifier
7. Wiring label is required for any unit in which the audio output power exceeds 10W per channel under normal operating conditions or if the unit is intended to be installed or connected by a skilled person CAUTION When the ZX 7 RX 7 master power switch is switched off or there is a power outage the state of the unit remains the same when power is restored If in standby mode red LED when the power is removed it will remain in standby mode when power is restored If the unit is in active mode blue LED and power is removed it will remain activated when power is restored It is recommended that the ZX 7 RX 7 be set to standby mode before being powered off to prevent potential damage to the unit or your speakers If the ZX 7 RX 7 is not trigger connected to a controlling device such as the MC 12HD MC 8 which comes out of power loss and recovery in standby mode with a known volume setting there is a potential for damage to the speakers if power is lost and restored with the ZX 7 RX 7 in active mode 6 AC POWER CONNECTOR The AC input connector provides power to the unit with the supplied power cord The 120 VAC version of the RX 7 is supplied with a 20 Amp power cord with a NEMA 5 20P plug on one end The 120 VAC version of the ZX 7 is supplied with a two 15 Amp power cords with standard NEMA 5 15P plugs on one end The NEMA 5 20P power cord has a different prong configuration than the average typical 15A household plug The 120 VAC ver
8. Connectors IM Distortion Less than 03 at full rated power ZX 7 RX 7 7 pairs of gold plated binding posts Crosstalk Greater than 80 dB 1 KHz 30 kHz bandwidth ZX 7 Performance Damping Factor Greater than 200 20 Hz ref 8 Ohms Input Sensitivity 1 6 volts for 200W out into 8 Ohms Input Impedance Minimum 10K Ohms Output Power 300W RMS per channel into 8 Ohms from 20 Hz 20 kHz Gain 28 dB 0 5 dB Power Requirements Two circuits each rated 120 VAC 124A or one circuit rated 230 VAC 8A 50 60 Hz Frequency Response THD 20Hz to 20 kHz 0 1dB 0 2 dB Less than 0 05 at full rated FTC power 20 Hz 20 kHz Less than 0 005 at full FTC power at 1 kHz Signal to Noise Ratio Greater than 110 dB below rated full rated power A Weighted Other Trigger Input 3 3V minimum 24V maximum DC Weight ZX 7 145 lbs 65 2 kg RX 7 105 Ibs 47 2 kg IM Distortion Less then 0 03 at full rated power Rack Mounting Optional brackets are available for mounting either ampli fier in standard 19 inch equipment rack Crosstalk Greater than 80 dB 1 KHz 30k Hz bandwidth Damping Factor Greater than 200 20 Hz ref 8 Ohms Input Sensitivity 2 volts for 300W out into 8 Ohms Input Impedance Minimum 10K Ohms Gain 28 dB 0 5 dB Height ZX 7 9 7 inches 246mm with feet ZX 7 8 7 inches
9. ZX RK Power Amplifier User Guide IMPORTANT SAFETY INSTRUCTIONS Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth Do not block any ventilation openings Install in accordance with the manufacturer s instructions Do not install near any heat sources such as radiators heat registers stoves or another apparatus including amplifiers that produces 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 The wide blade or the third prong are provided for your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Protect the power cord from being walked on or pinched particularly at plugs convenience recep tacles and the point where they exit from the apparatus Main Plug is considered to be the disconnect device for this product and shall remain readily operable To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture Do not place objects containing liquid such as vases on this apparatus 12 Only use attachments accessories specified by the manufacturer 13 Use only with the cart stand tripod bracket or table specified by the m
10. a rte estt 1 2 FHI GIG LEE 1 3 Installation Considerations 1 3 Basic Operation Front Panel Overview ee ee ee ee e nennen eene 2 2 Standby BULLON asss l k ee EEE ay aa aN 2 3 Rear Panel ZX 7 230 VAC Overview 2 4 Rear Panel ZX 7 120 VAC Overview 2 5 Rear Panel RX 7 Overview ecce 2 6 Power Control Connections 2 9 Remote Trigger Power ON sse eene 2 9 Remote Power On with External AC to DC Power Converter 2 10 Power Connection Safety a 2 10 Source Component Connections amp Output Settings 2 10 Protection Mode it cedere YE bees Deeg DE Ge SES 2 11 Troubleshooting amp Maintenance Troubleshiootirig hr ae ees 3 2 Maintenance m 3 3 Appendix Specifications n en A 2 Declaration of Conformity eee A 3 1 Getting Started About The ZX 7 and RX 7 een 1 2 Product de EE 1 2 aUe Lu el 1 3 Installation Considerations 1 3 Getting Started Lexicon ABOUT THE ZX 7 AND RX 7 Congratulations and thank you for purchasing your new Lexicon Power Amplifier This is a reference quality amplifier designed to meet the highest standards of power and performance und
11. anufacturer or sold with the apparatus When a cart is used use caution when moving the cart apparatus combination to avoid injury from tip over 14 Unplug this apparatus during lightning storms or when unused for long periods of time 15 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as when a 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 Refer to the manufacturers operating instructions for power requirements Be advised that different operating voltages may require the use of different line cord and or attachment plug Do not install the unit in an unventilated rack or directly above heat producing equipment such as power amplifiers Observe the This triangle which appears on your component alerts you to the presence of uninsulated dangerous voltage inside the enclosure voltage that may be sufficient to constitute a risk of shock RISK OF ELECTRIC SHOCK DO NOT OPEN maximum ambient operating temperature listed in the product specification Never attach audio power amplifier outputs directly to any of the units connectors This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of FCC Rules These limits are designe
12. connector and the wall outlet 5 Check the wall outlet The TRIGGER INPUT is connected to an external device but the amplifier does not power on and off with the external device 1 Verify the trigger cable is connected at both ends and verify that the trigger cable is connected to the right device Also re verify the trigger installation instructions as instructed in Section 2 2 Verify the trigger level One or more channels is not passing audio Reduce system volume level Power the amplifier off Check input connections RA or m Check speaker connections 5 Allow the amplifier to cool before powering it on again Audio sounds out of phase Check to ensure proper speaker wiring Audio levels differ Check the settings on your preamp processor or controller Audio plays then cuts off Check speaker connections for short circuits at the amplifier and speaker A humming sound is present in the audio Audible hum or a discernible low frequency noise is one of the most common problems within audio video systems This problem even when the volume is at a low level is usually caused by a common problem known as ground loops A ground loop occurs when there is a difference in ground voltages between two or more components that are connected electrically In most cases one or more of the following suggestions below will solve the hum problem 1 Ifa cable TV connection is present disconnect the cab
13. ctory Products returned without prior authorization will be refused When obtaining return authorization please be prepared to provide the model serial number and a complete explicit description of the problem A copy of the original dated Bill of Sale must be included to confirm warranty status Please always retain the original packing materials This product must be properly packaged in its original packing materials whenever possible Improper packaging can lead to unnecessary freight damage that is not covered by either the freight carrier or the warranty The proper return authorization must be on the outer carton for easy identification Customer Service Tel 781 280 0300 Fax 781 280 0495 Sales Fax 781 280 0499 Service PRODUCT REGISTRATION o lexicon Please register this product within 15 days of purchase To do so complete and return this card or register online at www lexicon com H A Harman International Company Retajn the original dated Bill of Sale as proof of warranty coverage Mr c Mrs c Ms c Miss c Single c Married c Divorced c Widowed First Name Last Name Company Title Mailing Address City State Zip Telephone Number Fax Number Email Address Product Model Purchase Date Version Serial Number Where did you purchase this product Age Education Household Income lt gt Under 18 lt High School lt gt Under 20 000 C 18 24 C College 20 000 to 34 999
14. d to provide reasonable protection against harmful inter ference in a residential installation This equipment generates uses and radiates radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio or television reception which can be determined by turning the equipment off and on The user is encour aged to try to correct the interference by one or more of the following measures Recorient or relocate the receiving antenna increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced electronic technician for help This triangle which appears on your component alerts you to important operating and maintenance instructions in this accompanying literature exicon H A Harman International Company Lexicon Inc 3 Oak Park Drive Bedford MA 01730 1413 USA Tel 781 280 0300 Fax 781 280 0490 www hsgav com Customer Service Telephone 781 280 0300 Fax 781 280 0499 email csupport hsgav com Part No 070 18130 RevO 03 07 Lexicon and the Lexicon logo are registered trademarks of Harman International Industries Inc U S Patent Nos D454 553 D454 860 5 796 844 5 870 480 and other worldwide patents issued and pending 2007 Harman International Industries Incorporated All rights r
15. ear relay clicking This is normal operation 5 MASTER POWER SWITCH Connects and disconnects power from the AC Input Connector to the Amplifier Power Supply When this switch is on the front panel standby on LED illuminates When it is off the front panel standby on button will not function Set this switch to off when making or breaking connections to the amplifier The Master Power Switch also serves as a breaker To power on the ZX 7 RX 7 press the rear panel master power switch The ZX 7 120V AC includes 2 power switches You must power both switches on or off When powered on the front panel LED will light There will be a delay from the time the power is turned on until the power is applied to the speakers This is normal operation and protects the speakers from potential damage while the unit stabilizes You may hear a relay click during start up which is also normal operation Your power amplifier is supplied with a heavy duty magnetic circuit breaker With the ZX 7 120V AC unit there are 2 heavy duty magnetic circuit breakers If power to the amplifier is interrupted inspect the circuit breaker on the rear of the unit If the circuit breaker is in the OFF position you can reset it to the ON position to 2 7 Basic Operation Lexicon restore AC power If the circuit breaker immediately trips to the OFF position unplug the amplifier from the AC power source and contact Lexicon Customer Service Note The Class 2
16. er the most extreme operating conditions Equipped with advanced thermal current DC and speaker protection your new amplifier delivers reliable and exceptional performance with most loudspeakers including mismatched reactive and unusual loads With embedded protection against short circuits component failures mis wiring and internal faults the incredible power and wide ranging flexibility of the ZX 7 and RX 7 amplifiers confirm that they are at home in the most sophisticated and demanding home theaters Both the ZX 7 and RX 7 are fully balanced power amplifiers from input to output with completely symmetrical circuit design In other words each channel consists of two complete amplifier circuits one driving the positive input signal and the other driving the negative input signal With 7 channels this translates into 14 separate amplifier circuits per chassis The advantage of this topology over single ended designs is that it exhibits lower noise lower distortion immunity from stray electronic fields and anomalies in the input signal from outside interference This results in significant audible benefits including increased overall clarity and more pronounced differences between soft and loud passages Internally the ZX 7 and RX 7 both utilize two massive toroidal transformers and lots of filter capacitance to ensure rock solid low frequency reproduction and ample power reserves The ZX 7 delivers 300 Watts per channel into 8 Ohm
17. eserved This document should not be construed as a commitment on the part of Harman Specialty Group The information it contains is subject to change without notice Harman Specialty Group assumes no responsibility for errors that may appear within this document Introduction Lexicon DOCUMENTATION CONVENTIONS This document contains general safety installation and operation instructions for the RX 7 and ZX 7 Power Amplifiers It is important to read this user guide before attempting to use the product Pay particular attention to safety instructions The following symbols are used in the document CAUTION Note Appears on the component to indicate the presence of uninsulated dangerous voltage inside the enclosure voltage that may be sufficient to constitute a risk of shock Appears on the component to indicate important operating and maintenance instuctions in the accompanying literature Calls attention to a procedure practice condition or the like that if not correctly performed or adhered to could result in injury or death Calls attention to a procedure practice condition or the like that if not correctly performed or adhered to could result in damage or destruction to part or all of the product Calls attention to information that is essential to highlight ZX 7 RX 7 Introduction Table of Contents Getting Started About The ZX 7 and RR A 1 2 Product Registration tale t ee it
18. lasts and other states do not allow the exclusion or limitation of incidental or consequential damages so that the above exclusion or limitation may not apply Except as specified below the Lexicon warranty covers all defects in material and workmanship The following are not covered Damage caused by accident misuse abuse product modification or neglect damage occurring during shipment damage from failure to follow instructions contained in the instruction manual damage resulting from the performance of repairs by someone not authorized by Lexicon damage caused by installation of parts that do not conform to Lexicon specifications units used for other than home use units not used for their intended purpose any claims based on misrepresentations by the seller products sold on an as is or final sale basis or the cost of installing removing or reinstalling the unit Lexicon s liability is limited to the repair or replacement at our option of any defective product and shall not include incidental or consequential damages Lexicon reserves the right to replace a discontinued model with a comparable model Any replacement units or parts may be new or rebuilt NOTE Repair of our product must be done by an authorized dealer or service center Unauthorized repair will void the warranty and is done at the risk of the consumer This warranty provides specific legal rights Other states may provide additional rights This warra
19. le from the wall outlet If this eliminates the humming sound a ground loop isolation device is required Contact your dealer or cable provider for assistance 2 Disconnect components one at a time to isolate the problem Once the problem is identified make sure the associated 3 2 Lexicon Troubleshooting amp Maintenance component is properly grounded and connected to the same electrical ground as the ZX 7 RX 7 3 Turn off all components within your system and then disconnect the input cable on the amplifier Turn the amplifier back on If the hum disappears the fault may be with the input cable that is being used Make sure the cables are properly shielded or use a cable that has better shielding Make sure the cable is not running or laying on top of any AC power cords 4 Ground loop problems may also be caused by poor grounding of the electrical system within your home or may be caused by faulty earth grounds in your home s electrical system To isolate the problem try unplugging components with three prong grounded power cords one at a time to see if one or all are causing the problem In the past cold water pipes and other utilities were often used for grounds These items may not be still valid because of corrosion of the existing pipes and the installation and use of PVC piping Please check with a licensed electrician for further evaluation If all else fails 1 Contact an authorized Lexicon dealer
20. lt 25 34 lt Graduate School 35 000 to 49 000 C 35 49 C Certificate 50 000 to 74 999 C 50 64 75 000 to 99 000 C 5 100 000 How did you learn about this product Choose one Friend O Store salesperson C Advertisement Colleague Store display c Magazine Article C Teacher C Received as a gift C Own other Lexicon products Which of the following were most important in the selection of this product Sound Quality C Value for price Durability Features lt Brandname lt Other What are your three favorite magazines 1 2 3 What are your three favorite websites 1 2 3 What features would you like to see added to this product in the future ZX 7 RX 7 03 07 X3uVd VO 986 0 210 VW AYOJ039 dNOH9 AL1VIO3dS NVIWHVH NOLLVHLSI93H LONAOHUd 33SS3HQQV AG GlVd 38 TIM 49VLSOd VW GYOs038 Z9 ON LINHAd IVW SSVI1O LSHId TIVIN A1d34 SSANISNA SALVLS O3LINN JAHLNI qanivw al AHVSS3O3N 39VLSOd ON exicon H A Harman International Company 3 Oak Park Drive Bedford MA 01730 1413 USA Tel 781 280 0300 Fax 781 280 0490 www harmanspecialtygroup com Customer Service Telephone 781 280 0300 Sales Fax 781 280 0495 Service Fax 781 280 0499 Product Shipments 900 Middlesex Bldg 6 Billerica MA 01821 0017 USA Part No 070 18130 Rev 0
21. n page 2 3 The standby button 1 is the only front panel control on both amplifier models Standby On Button 2 2 ZX 7 RX 7 Basic Operation STANDBY BUTTON Activates and deactivates standby mode when the ZX 7 RX 7 amplifier is powered on with the rear panel power switch The standby button 1 performs no function when the amplifier is powered off with the rear panel power switch When the amplifier is on pressing the standby on button activates standby mode and deactivates the power amplifier While in standby mode the front panel LED is red Power is still supplied to the ZX 7 RX 7 when it is in standby mode When the unit is in standby pressing the standby on button deactivates standby mode and activates the power amplifier While the ZX 7 RX 7 is activated the front panel LED is blue Note When the status of the ZX 7 RX 7 changes or is powered up there may be a delay in audio output and relay clicks may be audible This is normal operation Standby On Button 2 3 Basic Operation Lexicon REAR PANEL ZX 7 230 VAC OVERVIEW The ZX 7 230 VAC rear panel is shown below The ZX 7 120 VAC rear panel is shown on page 2 5 The numbers in the rear panel illustrations correspond with the numbered description items A i EN jj NPUIS nn Y RIGHT
22. nty is applicable in the United States its territories and Canada Outside of the United States its territories and Canada please contact an authorized Lexicon distributor for warranty and service information Harman Specialty Group Tel 781 280 0300 3 Oak Park Drive Fax 781 280 0490 Bedford MA 01730 1413 www lexicon com USA Obtaining Service We take great pride in selling Lexicon products through a network of well trained dealers who are dedicated to customer satisfaction These professionals are ideally suited to design install and if the need arises facilitate the service of high performance electronic home entertainment systems Customer Service assists authorized Lexicon dealers in solving problems effectively When purchasing Lexicon products customers make a substantial investment in audio video equipment of exceptional quality In the event that service is needed Customer Service intends to provide assistance that matches that investment If this Lexicon product requires service contact an authorized Lexicon dealer for assistance The dealer will contact Customer Service to determine the best way to rectify the situation and if needed to obtain return authorization in the event that the product must be returned to the factory for repair Alternatively customers may contact Customer Service directly to obtain return authorization However return authorization must be obtained before any product is shipped to the fa
23. power on This may be the switched outlet at the rear of another A V product 2 Connect the 1 8 mini plug from the adapter to the ZX 7 RX 7 rear panel TRIGGER INPUT The ZX 7 RX 7 will now turn on and off automatically depending on the status of the controlling device POWER CONNECTION SAFETY After all audio and system connections have been made connect the power cord to an AC power source Be sure that the ZX 7 RX 7 is powered off and that the device connected to the remote trigger input is off when connecting the power cord and plugging it into an AC outlet Do not plug the ZX 7 RX 7 directly into the Switched Accessory outlet of another device These outlets are intended for use with low current draw products such as tuners CD players or cassette decks These outlets are not designed to handle the high current draw of a power amplifier Using these outlets for a power amplifier is a significant safety hazard SOURCE COMPONENT CONNECTIONS amp OUTPUT SETTINGS Make all connections before powering on the ZX 7 RX 7 It is also recommended that you power on the source components and processor in your system before powering on the ZX 7 RX 7 This avoids the possibility of any pops or transients from other components being amplified and sent to the speakers Always start with a low volume level on the controller or preamplifier to avoid potential damage to the speakers All volume and level adjustments are made on your preamplifier
24. protection against DC and frequencies below 10Hz e Protection against short circuits device failures mis wiring and internal faults Trigger input for power control from an external device e RCA and XLR inputs e Gold plated input and output connectors Rack mount option available e Noise elimination e Delayed audio turn on to eliminate noises from driving equipment Completely symmetrical circuit design which ensures optimal audio sonality e Hefty power supplies with lots of filter capacity ensures rock solid bass High damping factor no output relays ensure realistic impressive bass transients e Advanced protection circuitry ensures reliability under any sort of user abuse INSTALLATION CONSIDERATIONS To ensure optimal performance pay particular attention to the instructions below and to other precautions that appear throughout this user guide Do be careful when moving the amplifier as it is very heavy Do install the ZX 7 RX 7 on a solid flat level surface such as a table or shelf The ZX 7 RX 7 can also be installed in a standard 19 inch equipment rack using an optional rack mount kit available from an authorized Lexicon dealer Do select a dry well ventilated location out of direct sunlight Do NOT install the ZX 7 RX 7 on a surface that is unstable or unable to support all four feet Do NOT expose the ZX 7 RX 7 to high temperatures humidity steam smoke dampness or excessive dust Avoid in
25. roducts at the time of the original purchase The original dated Bill of Sale is presented whenever service is required during the warranty period The balance of this warranty is transferable only if the used product is purchased from an authorized Lexicon dealer This warranty is only valid for service within the United States its territories and Canada and does not apply to products purchased elsewhere Outside of the United States its territories and Canada please contact an authorized Lexicon dealer for warranty and service information Any Lexicon product not performing satisfactorily may be returned to the factory for evaluation Return authorization must first be obtained by either calling or writing Customer Service before shipping the product The customer is responsible for shipping charges to the factory Customer Service will pay return shipping charges within the United States only in the event that the product is found to be defective as mentioned above There are other stipulations that may apply to shipping charges There is no other express warranty on this product Neither this warranty nor any other warranty express or implied including implied warranties of merchantability and fitness shall extend beyond the warranty period No responsibility is exicon H A Harman International Company assumed for any incidental or consequential damages Some states do not allow limitations on how long an implied warranty
26. s while the RX 7 delivers 200 Watts per channel into 8 Ohms Equipped with gold plated speaker output connectors the rear panel includes balanced or unbalanced audio input via RCA and XLR connectors A trigger input connector allows the amplifiers to be controlled with associated components such as the MC 12HD or MC 8 Digital Controllers The ZX 7 and RX 7 amplifiers include advanced optically coupled protection for each channel In order to receive the maximum peak performance from your Lexicon amplifier please take a few minutes and completely read this manual This important information will help you make certain that these Lexicon amplifiers are properly configured for operation with the rest of the equipment within your system PRODUCT REGISTRATION Please register your new amplifier within 15 days of purchase Register online at www harmanspecialtygroup com registration or complete and return the product registration card attached to the back cover of this user guide Retain the sales receipt as proof of warranty coverage 1 2 ZX 7 RX 7 Getting Started HIGHLIGHTS ZX 7 300 Watts per channel 8 Ohms RX 7 200 Watts per channel 8 Ohms e Dual oversized toroidal power transformers with extraordinarily low DC resistance and thermal protection e High power supply voltage for extra headroom at the outputs e Stable with mismatched reactive or unusual loads e Thermal protection against overheating e Speaker
27. s for remote power on using components equipped with a DC trigger jack Using an accessory cable with a 1 8 mono mini plug and the correct connector specified for your source device follow the procedure below to connect the trigger output jack on the rear of the source device to the ZX 7 RX 7 rear panel TRIGGER INPUT To install the Trigger Cable Power the controlling source and amplifier off Connect the trigger cable to the controlling source and the amplifier e After the connections are made power on the controlling source and then the amplifier After the source unit is fully powered up the LED on the amplifier should be in the ON state BLUE If the amplifier is in the standby mode RED press the standby on button on the front panel until the amplifier is in the ON state BLUE e Verify the trigger is working by putting the source unit into standby mode The amplifier after a short delay will also go into the standby mode RED LED Once you have verified that the trigger cable is working only use the source unit to power on and off your amplifier When installing the trigger cable never have the controlling source or amplifier powered on Doing so will cause the trigger device to work improperly and could cause damage to both the source and amplifier NOTE The trigger cable supplied has a 1 8 connector on both ends In order for this cable to be used with the MC 12HD or MC 8 you must modify the cable
28. sion of the RX 7 requires a dedicated circuit with a single 20 Amp outlet installed The 20 Amp outlet has a different prong configuration from the 15 Amp outlet Dedicated circuits typically are connected directly to the service entrance of the building The 120 VAC version of the ZX 7 has two power cords Each power cord must be plugged in to a separate 15 Amp circuit Separate circuits typically are connected to different circuit breakers at the service entrance of the building Do not attempt these wiring changes by yourself instead hire a licensed qualified electrician CAUTION Never make or break connections to the ZX 7 RX 7 unless the ZX 7 RX 7 and all associated components are powered off 7 SPEAKER OUTPUT CONNECTORS Provide audio output for the speakers Output connectors can accept bare speaker wires or most spade connectors When using bare speaker wires loosen the connector insert the wire into the top of the receptacle then tighten the connector The same procedure should be used for spade connectors Use heavy gauge speaker cable to ensure low impedance connections between the amplifier and the speakers Observe correct speaker polarity 2 8 ZX 7 RX 7 Basic Operation POWER CONTROL CONNECTIONS The ZX 7 RX 7 features a built in remote power on system that will automatically switch the amplifier on when another device in the system is switched on REMOTE TRIGGER POWER ON How to make connection
29. stalling the amplifier near radiators and other heat producing appliances Do NOT install the ZX 7 RX 7 near unshielded TV or FM antennas cable TV decoders or other RF emitting devices that might cause interference Do NOT place the ZX 7 RX 7 on a thick rug or carpet or cover the ventilation holes in the chassis as this might prevent proper cooling Do NOT place the ZX 7 RX 7 on a windowsill or any location exposed to direct sunlight Do NOT stack the ZX 7 RX 7 directly above heat producing equipment such as another power amplifier 1 3 Wee C Basic Operation Frorit Panel Overview ee 2 2 Standby E TEE 2 3 Rear Panel ZX 7 230 VAC Overview 2 4 Rear Panel ZX 7 120 VAC Overview 2 5 Rear Panel RX 7 Overview 2 6 Power Control Connections 2 9 Remote Trigger Power On sisie Ee e terret eee ito ee teeth teen ones 2 9 Remote Power On with External AC to DC Power Converter 2 10 Power Connection Safety ua uuu ee ee ee ee ee ee 2 10 Source Component Connections amp Output Settings 2 10 Protection Mode 2 11 Basic Operation Lexicon FRONT PANEL OVERVIEW The ZX 7 front panel is shown below The RX 7 front panel is shown o
Download Pdf Manuals
Related Search