American Audio VLP 2500 User's Manual
Contents
1. 4 Channel 1 Signal Indicators These green and yellow LED s will glow according to the average signal output 5 Function Indicators These indicators detail the operating mode of the amplifier These LEDs will also function as a power indicator 6 Power Switch This switch is used to control the units main power 7 Channel 2 Signal Indicators These green and yellow LED s will glow according to the average signal output 8 Channel 2 Clip Indicator This red LED will begin to flash when channel one begins to overload clip At this point channel one will be gin to distort Under heavy clipping activity lower the channel one gain 7 89 gt 5 O ERICAN AYD c O aii Le D aM 7 Es o c d C 2 fe CHB 2 R c 3 CO lf gt c 6 VLP2500 oi Figure 1 control to reduce the risk of damage to your speakers and amplifier This LED may glow when the unit has been turned off this is normal 9 Channel 2 Protect Indicator The red Protect LED will begin to glow when the channel goes into protect mode When the channel goes into protect mode all output for that channel will turn off This is to protect any speakers connected to the channel 10 Channel 2 Gain Control This rotary knob is used to control the output signal of channel two Turning the knob in a clockwise direction will increase signal output American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 5 Rear P2. factory unless prior written authorization was issued to purchaser by American Audio if the product is damaged because not properly maintained as set forth in the instruction manual D This is not a service contract and this warranty does not include maintenance cleaning or periodic check up During the period specified above American Audio will replace defective parts at its expense and will absorb all expenses for warranty service and repair labor by reason of defects in material or workmanship The sole responsibility of American Audio under this warranty shall be limited to the repair of the product or replace ment thereof including parts at the sole discretion of American Audio All products covered by this warranty were manufactured after January 1 1990 and bear identifying marks to that effect E American Audio reserves the right to make changes in design and or improvements upon its products without any obligation to include these changes in any products theretofore manufactured F No warranty whether expressed or implied is given or made with respect to any accessory supplied with products described above Except to the extent prohibited by applicable law all implied warranties made by American Audio in connection with this product including warranties of merchantability or fitness are limited in duration to the warranty period set forth above And no warranties whether expressed or implied including warranties of
3. American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 15 i GO American Audio American Audio is part of the American DJ Group of Companies American DJ World Headquarters 4295 Charter Street Los Angeles CA 90058 USA Tel 323 582 2650 Fax 323 582 2610 web www americanaudio com e mail info americanaudio com
4. MINIMUM DE 2 OHMS age within the products enclosure and may be of sufficient magnitude to consti USING TWO SPEAKERS THEY MUST AVEC DEUX H P FAUT POUR CHAOUN UNE tute a risk of electric shock RATED EACH AT A OR MORE OHMS CHARGE D IMPEDANCE MINIMUM DE 4 ion point tri i OHMS intended to alert the user te the presence USING THREE SPEAKERS THEY EE Ge RATED EACH AT 8 OR MORE AVEC TROIS up FAUT POUR CHAOUN UNE ea eH aN Ge D IMPEDANCE MINIMUM DE 8 CONTENTS Safety FP FS ANN UN EE 4 eieiei ors oe TT ee Te Te ee he ce ce eee ee cee i 4 Pe OM AN DEE 5 Rear Fr Alia E 6 elef GE 7 OUPS eene E EE E E EE E E E E E EE 7 Speakon Qutput Connector Assembly seirene E E A iaaa a E aaa E 9 EE 10 Protection Circuitry Eege 11 Short E E 11 Thermal Protection caseer axes esaaactnceeteserenceacaenmsatersceencrentectwantaetarce aignutanuan te A A E EA 12 Amplifier E 12 Speaker SGUD ere enne E E E E ES 13 Eege 14 ler EE 15 American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 3 Important Precautions e To reduce the risk of electrical shock or fire do not expose this unit rain or moisture e Do not spill water or other liquids into or on to your unit Do not attempt to operate this unit if the power cord has been frayed or broken e Do not attempt to remove or break off the ground prong from the electrical cord This prong is used to reduce the risk of elec trical shock and fire in case o
5. No hay piezas adentro que el usario puede reparar Deje todo mantenimiento al los t c nicos cualificados ADVERTENCIA Para prevenir choque el ctrico o riesgo de incendios no deja expuesto a la lluvia o a la humedad este amplificador Antes de usar este amplificador lea mas advertencias en la guia de operacion Ce symbole est utilis pur indiquer l utilisateur la pr sence l int rieur de ce produit de tension non isol e dangereuse pouvant tre d intensit suffisante pour constituer un risque de choc lectrique Ce symbole est utilis pour indiquer l utilisateur qu il trouvera d importantes instructions importantes sur l utilisation et l entretien de l appareil dans la litt rature accompagnant le produit ATTENTION Risque de choc lectrique NE PAS OUVRIR ATTENTION Afin de r duire le risque de choc lectrique ne pas enlever le couvercle IlI ne se trouve l int rieur aucune pi ce pouvant tre r par e par l utilisateur Confier l entretien un personnel qualifi AVERTISSEMENT Afin de pr venir les risque de d charge ou de feu n exposez pas cet appareil la pluie ou humidit Avant d utiliser cet amplificateur lisez les aver issements suppl mentaries situ s dans le guide Dieses Symobl soll den Anwender vor unisollierten gef hrlichen Spannungen innerhalb des Geh uses warnen die von Ausreichender St rke sind um einen elek trischen Schlag verursachen zu k nnen U Dieses Symobl soll den Ben
6. individual channel American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 12 TYPICAL STEREO OUTPUT CONNECTIONS Figure 13 Use Speakon or Banana Jacks CONNECTOR NOTICE XLR JACK SPEAKER AC INPUT 120v60H2 SPEAKERS SPEAKERS 4 OHM MINIMUM 4 OHM MINIMUM TYPICAL MONO BRIDGE SET UP Use Channel 1 Inputs Only XLR or 1 4 Jacks E gt round d i d jo AC INPUT Figure 14 ed d REH we eler Sin CAUTION Ly Leni D ke K OPEN OUTPUTS d SE TECHNOLOGY FROM U S A ad SENSITIVI i MADE IN PROCH e Ce We SC Sa lt fa FUSE RS 120V 15A BSE VLP1500 Use the two positive binding post termainals red for speaker output SPEAKERS 8 OHM MINIMUM American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 13 The VLP 2500 carries a one year limited warranty We recommend you fill out the enclosed warranty card to validate your purchase All returned service items whether under warranty or not must be freight pre paid and accompany a R A return authorization number If the mixer is under warranty you must provide a proof of purchase invoice You may obtain a R A number by contacting our customer support team on our toll free number Please contact American Audio customer support at 800 322 6337 for a R A number All package not displaying a R A number on the outside of the package
7. output during the Short Circuit Protection will be interrupted i e no sound out American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 11 put Short Circuit Protection can usually be traced back to the signal output line i e speaker line Check the line from the output ter minal of the amplifier to the speaker If this line good check the internal speaker connections and components A short circuit will usu ally be traced to a bad cable or a bad speaker component and is rarely traced to the amplifier itself Thermal Protection Dual variable speed fans on the VLP 2500 amplifier provide adequate cooling During low level output the fans run at normal speeds During high output and as heat raises exceeding 90 C the fans will run at higher speeds to aid the cooling process If the heatsink temperature exceeds 91 C the amplifier will mute until the amplifier cools down When the amplifier cools below 90 C the amplifier will return to normal operations Be sure not to operate your amplifier below the minimum load ratings to reduce the risk of overheating problems Input Output Protection The input circuits are isolated by 10k resistors An ultrasonic network uncouples RF from the output and helps keep the amplifier stable with reactive loads Operating Voltage AC Mains The serial number label indicates the correct AC main voltage Connecting to the wrong voltage is dangerous and may damage t
8. will be returned to the shipper 1 YEAR LIMITED WARRANTY A American Audio hereby warrants to the original purchaser American Audio products to be free of manufacturing defects in material and work manship for a period of 1 Year 365 days from the date of purchase This warranty shall be valid only if the product is purchased within the United States of America including possessions and territories It is the owner s responsibility to establish the date and place of purchase by acceptable evidence at the time service is sought B For warranty service send the product only to the American Audio factory All shipping charges must be pre paid If the requested repairs or service including parts replacement are within the terms of this warranty American Audio will pay return shipping charges only to a designated point within the United States If the entire instrument is sent it must be shipped in its original package No accessories should be shipped with the product If any accessories are shipped with the product American Audio shall have no liability whatsoever for loss of or damage to any such accessories nor for the safe return thereof C This warranty is void if the serial number has been altered or removed if the product is modified in any manner which American Audio con cludes after inspection affects the reliability of the product if the product has been repaired or serviced by anyone other than the American Audio
9. AMERICAN AUDIO Professional Power Amplifier VLP2500 AMERICAN AUDIO VLP 2500 4295 Charter Street Los Angeles Ca 90058 User Instructions This symbol is intended to alert the user to the presence of non insulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons A This symbol is intended to alert the user of the presence of important operating and maintenance servicing instructions in the literature accompanying the product CAUTION Risk of the electrical shock DO NOT OPEN CAUTION To reduce the risk of electrical shock do not remove cover No user serviceable parts inside Refer all servicing to qualified service personnel WARNING To prevent electrical shock or fire hazard do not expose this amplifier to rain or moisture Before using this amplifier read the user manual for further warnings Este s mbolo tiene el prop sito de alertar al usuario de la presencia de voltaje peligroso que no tiene aislamiento dentro de la caja del producto que puede tener A una magnitud suficiente como para constituir riesgo de corrientazo Este s mbolo tiene el prop sito de alertar al usuario de la presencia de instrucciones importantes sobre la operaci n y mantenimiento en la literatura que vienc con el producto PRECAUCION Riesgo del choque el ctrico NO SE ABRA PRECAUCION Para disminuir el riesgo de choque el ctrico no quite la cubierta
10. Speakon NL4FC connector complete the following steps 1 Strip back 3 4 inch of the cable casing Strip off 1 4 inch from the end of each of the conductors down to bare wire and insert the brass fittings See Figure 9 2 Slide the cable tension clip D and the speakon coupler E through the cable end See Figure 10 3 Insert each wire with the brass fittings into the top of appropriate slot of the connector insert B as shown in Figures 10 and 11 Use a 1 5 mm Allen key to tighten the connection See Figure 11 4 Be sure to properly match the positive and negative leads of each wire See Figure 12 5 Slide the connector insert B into the connector housing A making sure that the large notch on the outer edge of the insert lines up with the large groove on the inside of the connector housing The insert should slide easily through the housing and out the other side until it extends approximately 3 4 inch from the end of the housing 6 Slide the cable tension clip D along the cable and insert into the housing A making sure that the large notch lines up with the large groove on the inside of the connector housing A The cable tension clip D should slide easily into the housing until only 3 8 inch of the cable tension clip D extends from the back end of the connector 7 Slide the coupler E along the cable and screw it onto the end of the housing A Before tightening you may want to test the connector to
11. anel Control VLP2500 26 27 BRIDGE STEREO 3 6 LIMITER x vn RI OFF o 4 e IS 3 SIGNAL SLEEVESGROUND CHA2 CHE MODE L RISK or reer ech TECHNOLOGY W USA 28 a t CHB e OUTPUTS BRIDGE CHA 35 ER i MADE IN PR O C CHA T D Ate 30 29 Figure 2 21 Cooling Fans Dual high speed cooling fans 22 Channel 2 XLR Input page 9 for more details Channel two 3 pin XLR balanced input jack See 23 Channel 2 TRS Input Channel two 1 4 female jack Excepts either a bal anced or unbalanced plug See page 9 for more details 24 Mode Switch This switch controls the amplifier s operating mode The amplifier can operate in three different modes Mono Bridge Stereo or Parallel Mono The amplifier is shipped in stereo mode 25 Ground On Off Switch switch in the On postion If hear a hum or any interference put the Ground 26 Channel 2 Speakon Output Optional speaker output connections Use pins 1 and 1 of this 4 pole Speakon connector to connect to your speaker s Speakon input jack 27 Channel 2 Output Jack 5 way Binding Post Connect to your speaker s input jack Red is positive signal and Black is negative signal 28 Fuse Holder This housing stores 30 amp GMA protective fuse for the 120V version and 15 amp GMA fuse for the 230 245V version Never defeat the fuse the fuse is designed to protect the electronics in the event of sev
12. contact with that of another Spade Connector Figure 8 When connecting your speakers to the amplifier using spade connector Unscrew the red and black caps on the binding post be sure not to completely remove or unscrew the red and black caps Insert the spade con nector in to the binding post and tighten the caps down on the spade connector To reduce the risk of shock or damage to your amplifier be sure that the wire connected to one binding post does not come in contact with that of another When connecting your speakers to the amplifier using banana jacks Be sure that the red and black caps on the binding post are tighten down completely Insert the banana jacks into the caps of the binding post be sure that the banana jack is inserted securely to avoid the risk of it popping out Mono Bridge Connections Mono bridge operation connections will follow the above descriptions however when operating in mono bridge operation the speaker connections will run between the two positive red leads Use channel two pos itive output terminal for the negative connection and the channel one positive output terminal for the positive connection Stereo Connections Using the Neutrik Speakon output connectors Figure 7 ue A we d d CC Typical speaker output using bare wire Insert bare wire into the binding post and tighten Figure 8 Typical speaker output using spade connectors Insert bare wire into the binding post and tigh
13. ere power fluctuations Always be sure to replace the fuse with an exact match as the one being replaced unless otherwise told to do so by an authorized American Audio service technician 29 AC Cord Plug this cable into a standard wall outlet Check that the voltage in your area matches the amplifiers required voltage American Audio www americanaudio com 30 Channel 1 Output Jack 5 way Binding Post Connect to your speaker s input jack Red is positive signal and Black is negative signal 31 Channel 1 Speakon Output Optional speaker output connections Use pins 1 and 1 of this 4 pole Speakon connector to connect to your speaker s Speakon input jack 32 Filter Switch This switch controls the amplifier s filter mode The amplifier can operate in three different filter modes High Pass Low Pass and By Pass 33 Sensitivity Switch This switch lets you choose the input sensitivity 34 Channel 1 TRS Input Channel one 1 4 female jack Excepts either a bal anced or unbalanced plug See page 9 for more details 35 Channel 1 XLR input Channel one 3 pin XLR balanced input jack See page 9 for more details 36 Limiter Switch This switch is used to limit the input level Use this function to avoid damage to your speakers VLP 2500 Power Amplifier User Manual Page 6 Set Up INPUTS The VLP 2500 amplifier allows you to use two types of input connector per a channel a XLR jack for balanced connecti
14. everal subwoofers down to a minimum of 4 ohms To avoid amplifier overheating never run the amplifier below 8 ohms in this mode Set up this mode as you would a standard stereo set up Be sure both channels are set to SUBWOOF and the mode switch is set to MONO In this mode you may use the frequency adjustment on the rear of the amp to control the bass frequency output level Frequencies may be adjusted from 20Hz to 200HZz One Channel Normal One Channel Subwoofer BI AMP You may also use your amp to bi amp your system You may use one side of the amp to power a subwoofer and the other side to power a full range speaker Follow the set up guides listed above to mix and match your operations PROTECTION Limiter The VLP 2500 comes with a built in limiter When the input signal overloads the CLIP LED s indicate a signal overload at this time the master volume should be lowered to reduce distortion If the input gain level is not reduced the built in limiter will acti vate During signal overload the limiter will reduce the input audio signal enough to minimize the amount of clipping A limiter takes the gain of an overloading signal and reduces it the reduction in gain reduces distortion that can cause damage to your speakers and amplifier During normal operation below clipping and momentary clips on peaks the limiter does not affect the audio signal and is inaudible It will allow brief clipping of peaks and will only act
15. f an internal short e Disconnect main power before making any type of connection e Do not remove the cover under any conditions There are no user serviceable parts inside e Never plug this unit in to a dimmer pack e Always be sure to mount this unit in an area that will allow proper ventilation Allow about 6 15cm between this device and a wall e Do not attempt to operate this unit if it becomes damaged e This unit is intended for indoor use only use of this product out doors voids all warranties e During long periods of non use disconnect the unit s main power e Always mount this unit in a safe and stable manner Power cords should be routed so they are not likely to be walked on pinched by items placed upon or against them e Cleaning The outside of the unit should be wipe down with a soft cloth and mild cleaner when needed e Heat The appliance should be situated away from heat sources such as radiators heat registers stoves or other appliances including amplifiers that produce heat e The fixture should be serviced by qualified service personnel when A The power supply cord or the plug has been damaged Introduction Introduction Congratulations and thank you for purchasing this American Audios VLP 2500 amplifier This amplifier is a represen tation of American Audio s continuing commitment to produce the best and highest quality products all at an affordable price Please read and understand t
16. he amplifier Always be sure the source voltage for your areas matches the required voltage for your amplifier Gain Controls The gain controls are located on the front panel and are calibrated in 2dB of attenuation from full gain It is best to adjust the amplifier so no hissing is heard from speakers with no music being played this will ensure the lowest possible distortion during normal operation AMPLIFIER FEATURES GROUND LIFT SWITCH Applying or lifting the ground switch will change the level for background noise and hum if the noise level remains the same in either position it is better to keep the ground lift switch in the ground position This will eliminate 60Hz cycle hum that is sometimes induced when mounting several units in the same rack OPERATING VOLTAGE AC MAINS The serial number label indicates the correct AC main voltage Connecting to the wrong voltage is dangerous and may damage the amplifier GAIN CONTROLS The gain controls are located on the front panel and are calibrated in 2dB of attenuation from full gain It is best to adjust the amplifier so no hissing is heard from speakers with no music being played this will ensure the lowest possible distortion during normal operation LED INDICATORS Each channel has five LEDS Two gree LEDs indicate signal level activity One yellow LED indicates signal clip ping One red LED indicates protection mode for shorts overload One blue LED indicates power for each
17. his manual completely before attempting to operate your new amplifier This booklet contains important information concerning the proper and safe operation of your new amplifier Unpacking Every VLP 2500 amplifier has been thoroughly tested and has been shipped in perfect operating condition Carefully check the shipping carton for damage that may have occurred during shipping If the carton appears to be damaged carefully inspect your unit for any damage and be sure all accessories nec essary to operate the unit has arrived intact In the event damage has been found or parts are missing please contact our toll free customer support number for further instructions Please do not return the amplifier to your dealer without contacting customer support first Installation This amplifier is designed to mount into a standard 19 rack The front panel provides four holes used to screw the unit into a rack The unit also provides a way to rear mount the unit into a rack for added security Rear mounting the unit is espe cially recommended for this amplifier if the unit is to mounted into a mobile rack Customer Support American Audios provides a toll free custom er support line to provide set up help and to answer any question should you encounter problems during your set up or initial opera tion You may also visit us on the web at www americanaudio com for any comments or suggestions For service related issue please contact American Audio
18. ivate when continuous hard clipping occurs During excessive clipping the limiter will reduce the audio signal enough to minimize the amount of clipping When the input signal decreases enough that clip ping ends the limiter will deactivate and cease its gain reduction The limiter has a fixed threshold and can not be adjusted Safe Power Levels at Different Output Loads 8 Ohm Loads The amplifier can operate at practically any power level without risk of overheating However if it is pushed hard enough to continually light the CLIP indicator the amplifier s average output power can reach 150 watts 4 Ohm Loads H the CLIP indicator flashes occasionally the amplifier is approaching its maximum long term power capacity If it is lit about half the time the amplifier channel will probably go into thermal protection within a few minutes Short Circuit Protection The VLP 2500 amplifiers all come with built in Output Short Circuit Protects The Output Short Circuit Protection protects the output devices of the amplifier from short circuits and stressful loads If your speaker lines short the ampli fier automatically detects this problem and discontinues operation for that channel If one side of your amplifier becomes shorted and goes into protect mode the other side will continue to operate normally During short circuit protec tion the Clip LED and Protect LED will light simultaneously indicating amplifier fault All channel
19. lifier Turn channel two gain up Use the channel one gain to regulate your amplifier output Bridged Mono Mode Caution The voltage across the output terminals of a bridged VLP 2500 amplifier may equal or exceed 100 volts RMS and may be as high as 130 volts Use fully insulated CLASS ONE wiring and the load must be rated for up to 2500 watts 4 ohms Parallel Mono Parallel ties the two channel line inputs together so that they will both be driven by the same signal without the need for external jumpers or wiring Both amplifier channels will operate independently Though they carry the same signal their gain controls affect only their respective channels and they both must use their respected speaker outputs Never attempt to parallel the speaker outputs this may cause serious damage to your amplifier This mode is recommended when using the VLP 2500 to run bass speakers to achieve better low end To run in parallel mono mode connect your system as you would if you were going to run in stereo mode Then flip the mode switch to MONO Be sure the amp is off or the power is disconnected before making any changes American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 10 Mono Subwoofer This operation is similar to the Stereo Subwoofer operation but in mono When running subwoofers it is usually recommended to run them in mono mode to achieve a cleaner tighter low end This operation allows you to run s
20. make sure it has been assembled properly Figure 9 Brass Inserts 4 Conductor Speaker Cable Figure 10 1 a A B C D E Figure 11 Figure 12 American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 9 OPERATING MODES Always configure your amplifier operating mode before beginning operation If you want to change it dur ing performance You must decrease the gain controls to their lowest levels to protect the speakers from any popping noise Stereo Operation Page 13 Figure 13 details an example of a typical stereo set up Connect your inputs into channels one and two of the amplifier Connect your speakers to the outputs on the rear of the amplifier Be sure that your front gain controls are turned down to their lowest level full counter clockwise Turn your amp on Turn your input source level up Use your front gain controls to regulate the output volume Be sure not to raise the volume to the clip level however an intermittent clip signal is acceptable Mono Bridge Operation Page 13 Figure 16 details a mono bridge set up Be sure your amplifier and all other audio equipment is powered down Flip the Stereo Mono Bridge switch to the Mono Bridge position Connect an input signal to channel one Connect your speaker across the red output binding post on the rear of your amplifier Turn your equipment on your amplifier should always be the last item you turn on Apply an input source signal to your amp
21. merchantability or fitness shall apply to this product after said period has expired The consumer s and or Dealer s sole remedy shall be such repair or replacement as is expressly provided above and under no circumstances shall American Audio be liable for any loss or damage direct or consequential arising out of the use of or inability to use this product G This warranty is the only written warranty applicable to American Audio products and supersedes all prior warranties and written descriptions of warranty terms and conditions heretofore published American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 14 VLP 2500 SPECS Power supply AC 100V 50 60Hz apan AC 110V 60Hz Colombia AC 120V 60Hz U S A and Canada AC 127V 60Hz Mexico AC 220V 50Hz Chile and Argentina AC 220V 60Hz Philippines and Korea AC 230V 50Hz Europe New Zealand South Africa and Singapore AC 240V 50Hz Australia and U K MODEL VLP2500 Output Power 700W RMS per Channel 8 Ohms 1kHz 0 1 THD Stereo 1100W RMS 4 Ohms 1kHz 1 THD Stereo 800W RMS 2 Ohms 1kHz 1 THD Stereo otal Harmonic Less Then 0 5 20Hz 20KHZ Distortion THD 8 Ohms Frequency 0 5db rated output power Response 8 Ohms 20Hz 20KHz R Damping Factor 450 hm Impedance 20K Ohms Balanced 10K Ohms Unbalanced Dimensions 17 8 x 19 x 3 5 LxWxH 453 x 482 x 88mm 49 81bs 22 6Kgs
22. ons and a 1 4 female jack that will accept balanced and unbalanced connectors Use these connections to connect the output signal from a mixer cross over or EQ to your VLP 2500 amplifier A balanced connection is recommended for cable runs longer that 20ft When constructing your own XLR cables follow the pin configuration describe below for proper connections For cable runs shorter than 20ft you may choose the 1 4 unbalanced input option The 1 4 unbalanced input option may be more convenient for most users due to the abundant supply of prefabricated cables available at your local audio dealer You may use the two XLR Input Thru jacks to jump a parallel connection to another amplifier or other device For Example Connect a XLR cable to the input of channel one You may now connect a XLR cable from the channel one Input Thru jack to the input jack of another amplifier s channel one input This will reduce the use of Y cables Male ee Balanced TRS 1 4 Plug Unbalanced TS 1 4 Plug andar Ae PS Figure 3 Figure 4 m 5 igure Hot Ground Shield 2 Hot data 1 Ground Return Ov Negative RE 3 Negative data OUTPUTS Binding Post Banana Plug Connect your speakers to the binding post outputs on the rear of the amplifier The speaker wire may be connect by bare wire directly connected usually for permanent connections banana plug or spade connector Connections are made to Channels 1 and 2 out
23. put s for stereo mode or across the red ter AED minals of Channels 1 and 2 for Mono Bridge Mode P Ke La gt Important Notice Although a speaker will operate with the positive and negative leads plugged into either ter minal on the amplifier binding post be sure to plug the negative lead into the black terminal and positive lead into the red terminal Ensuring proper polarity will avoid speakers being out of phase that can cause a loss of bass response Figure 6 Important Notice Banana Plugs When connecting your speakers to the amplifier using banana jacks Be sure that the red and black caps on the binding post are completely screwed in Insert the banana jacks into the caps of the binding post be sure that the banana jack is inserted securely to avoid the risk of it popping out American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 7 Bare Wire Connections Figure 7 When connecting your speakers to the amplifier using bare wire Unscrew the red and black caps on the binding post be sure not to completely remove or unscrew the red and black caps Strip back the wire insulation 1 2 18mm Insert the bare wire into the hole that was reveled by unscrewing the binding post cap After inserting the wire into the binding post hole screw the binding post cap down on the wire To reduce the risk of shock or damage to your amplifier be sure that the wire connected to one binding post does not come in
24. s Service Hours are Monday through B Objects have fallen on or liquid has been spilled into the unit Friday 9 00 a m to 5 00 p m Pacific Standard Time C The appliance has been exposed to rain or water D The fixture does not appear to operate normally or exhibits a marked change in performance Voice 800 322 6337 Fax 323 582 2941 E mail support americanaudio com American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 4 Front Panel I VLP2500 23435 6 5 10 1 Channel 1 Gain Control This rotary knob is used to control the out put signal of channel one Turning the knob in a clockwise direction will increase signal output 2 Channel 1 Protect Indicator The red Protect LED will begin to glow when the channel goes into protect mode When the channel goes into protect mode all output for that channel will turn off This is to protect any speakers connected to the channel 3 Channel 1 Clip Indicator This red LED will begin to flash when channel one begins to overload clip At this point channel one will be gin to distort Under heavy clipping activity lower the channel one gain control to reduce the risk of damage to your speakers and amplifier This LED may glow when the unit has been turned off this is normal
25. ten Recent regulatory requirements in Europe have outlawed the use of the dual banana plug and force amp users to terminate their speaker cables with spade lugs or bare wire ends This is not advantageous to most users that want to reconfigure their systems or quickly change out an amp The Neutrik Speakone connector provides the most convenient solution to this problem eliminating the need for spade plugs or bare wire end cables Major speaker manufacturers have been using Speakon connectors on their products for years so chances are you are ready to use the Speakon connection With Speakon connectors you can connect straight from the amplifier to the speaker The Speakon connector used on this amplifier meets all known safety regulations Once wired correctly the connector cannot be plugged in backwards causing the type of inverted polarity situations that have become common with banana hookups This connection will provide a safe secure and reliable method of connecting your speakers to your new amplifier You can purchase the Speakone NL4FC connectors from your local audio dealer American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 8 SPEAKON ASSEMBLY You will need a pair of Neutrik Speakone NL4FC connectors You will also need high quality two or four conductor speaker cable a pair of needle nosed pliers and a 1 5 mm Allen key to assemble the Speakon connectors to your speaker wire To assemble the Neutrik
26. utzer auf wichtige Instruktionen in der Bedienungsanleitung aufmerksam machen die Handhabung und Wartung des Produkts betref fen VORSICHT Risiko Elektrischer Schlag Nicht ffnen VORSICHT Um ddas Risiko eines elektrischen Schlages zu vermeiden nicht die Abdeckung enfernen Es befinden sich keine Teile darin die vom Anwender repariert werden k nnten Reparaturen nur von qualifizierte Fachpersonal durchf hren lassen ACHTUNG Um einen elektrischen Schlag oder Feuergefahr zu vermeiden sollte diesen Ger t nicht dem Regen oder Feuchtigkeit ausgesetz werden Vor Inbetriebnahme unbedingt die Bedienungsanleitung lesen American Audio www americanaudio com VLP 2500 Power Amplifier User Manual Page 2 CAUTION h eee FOR OPTIMUM PERFORMANCE AND POUR ASSURER LA FIABILETE ET CAUTION TO REDUCE THE RISK OF ELECTRIC RELIABILITY DO NOT PRESENT THE BEE ee SHOCK DO NOT REMOVE THE COVER AMPLIFIER WITH A SPEAKER LOAD A UNE CHARGE D IMPEDANCE TOTALE THERE ARE NO USER SERVICEABLE PARTS OF LESS THAN 2 OHMS OR ANY INFERIEURE A 2 OHMS NI AVEC UN H P NI INSIDE REFER ALL SERVICE TO YOUR COMBINATION OF SPEAKERS THAT EN COMBINAISON DES H P AUTHORIZED AMERICAN AUDIO e DEALER TOGETHER ARE LESS THAN 2 OHMS The lightning flash with an arrow triangular USING ONE SPEAKER IT MUST BE AVEC UN H P IL FAUT UNE CHARGE symbol is intended to alert the user to the presence of non insulated dangerous volt RATED AT 4OR MORE OHMS D IMPEDANCE
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