User manual BLAUPUNKT MPA680

[. . . ] M PA M U LT I - C H A N N E L P O W E R A M P L I F I E R MPA 680us 4/2 Channel Mobile Audio Amplifier with 680 Watts Max. Power Amplificateur audio mobile de 680 watts de puissance maximum à 4/2 canaux Amplificador Móvil de Áudio de 4/2 Canales con Potencia Máx. de 680 vatios Amplificador Móvel de Áudio de 4/2 Canais com Potência Máx. de 680 Watts 2 4/ AN CH NE LP OW ER AM PL IFI ER MP A6 0/ 2X 34 0W · 2 O HM AB ST LE +1 2V FU SE 80u s SP EA KE RS 4X 14 ­C H4 + ­C H SP 1+ RS + 2 KE EA ­ CH H ­C 3+ BLAUPUNKT SPECIFICATIONS - MPA680US, 3/2 CHANNEL AMPLIFIER Below is a basic trouble-shooting guide to assist in seeking out and correcting a problem that may occur in the installation process. [. . . ] For high gain settings ( 0. 3 volts), this says that it takes ONLY 0. 3 volts to drive the amp to full output. For low gain settings (near 4 volts), this says that it takes nearly 4 volts to drive the amp to full output. If the amp is often going into distortion at only moderate volume settings on the radio, rotate this control towards the 4 volts setting to reduce the distortion. 5. ) LOW LEVEL INPUTS - The more commonly used inputs, these are connected to the standard RCA outputs available on nearly all aftermarket radios today. These lines are dedicated to left and right outputs of the radio, be it for front or rear speaker installations. The input gain settings of the amplifier (0. 3 - 4 volts) are referenced to these inputs. 6. ) INPUT GAIN CONTROL (ch 1 & 2) - This controls the gain setting on the input of the amplifier. For high gain settings ( 0. 3 volts), this says that it takes ONLY 0. 3 volts to drive the amp to full output. 7. ) POWER "ON" LED - This light will turn on when the amplifier receives a +12 volt turn on signal from the radio in the vehicle. The input line to the "trigger" connection must be properly connected to the radio's trigger line which is often also the power antenna line. If the amp is properly wired, but the light does not turn on, verify the trigger line is properly connected, is receiving +12 volts, and the speaker outputs are not shorted to themselves or ground in any way. 8. ) CROSSOVER FREQUENCY SETTING (ch 1 & 2) - The internal crossover frequency control setting of the amplifier can be switched to either the "flat" frequency response position or in high-pass mode, 50-500 Hz. EL ­ INP UT R GAIN -+ L MIN MAX LEFT (+) LEFT (­) GREEN GREEN-BLACK (NOT USED) GREY-BLACK RIGHT (­) RIGHT (+) GREY GAIN HIGH-LEV +- EL ­ INP UT R -+ L MIN MAX LEFT (+) GREEN GREEN-BLACK (NOT USED) RADIO CHASSIS GROUND -ORCOMMON SPEAKER GROUND GREY-BLACK (NOT USED) RIGHT (+) GREY High Level (Speaker Input) Wiring 9. ) HIGH LEVEL INPUTS (ch 1 & 2) - Should RCA cables not be available from the radio you are able to tap onto the audio signal from the high level speaker outputs of the radio. This is most commonly used when the amp is an add-on device such as for a subwoofer system. 10. ) HI-PASS CROSSOVER CONTROL (ch 1 & 2) - Once the "crossover frequency setting" is set to "HI-PASS", this control adjusts the frequency for which all signals ABOVE this setting are passed on to the speakers. ­7 ­ POWER CONNECTIONS & SPEAKER OUTPUTS 1 23 Power Terminal (+12V) Connect directly to the vehicle battery + terminal with 10 gage wire (minimum) The power and speaker connections for this amplifier are explained in the summaries below and reference the numbered call-outs above. 1. ) POWER CONNECTIONS GROUND - This is the high current ground connection to the chassis of the car. It should be fastened to a clean ground connection in the car, capable of handling high current loads and within 3 feet (absolutely no longer than 3 feet). TRIGGER - This allows the amp to be remotely switched on from the radio and normally uses a dedicated "trigger" line output. It MUST be fused through its own dedicated fuse at the battery. +12V Spade Connector NOT SUPPLIED To Battery Terminal 10 Gage Wire 30 amp Fuse or Circuit Breaker Battery Terminal Adapter Ground Terminal Connect to a good chassis ground. The ground connection should be clean, unpainted metal to provide a good electrical connection. +12V 2. ) FUSE - This fuse is only for catastrophic situations should the amplifier begin to self-destruct or incur installation situations where gross amounts of current are being required from the amplifier. Although another fuse is located at the battery, in line with the battery high current line, this fuse MUST remain in the circuit to physically protect the amplifier. 3. ) SPEAKER OUTPUT CONNECTIONS - These connections are used to connect to the loudspeakers with the appropriate impedance. It is imperative that these lines NOT be connected or touch the chassis of the vehicle in any way. Also, the (+) and (-) leads are in no way inner connected so the left channel (+) and the right channel (+) must remain independent. In addition, the (-) leads for the speakers CANNOT touch or be wired to the ground lead of the amplifier; these are NOT common ground amplifiers. Spade Connector Ring Connector 10 Gage Wire Sheet Metal Screw Drill 1/8" hole in chassis sheet metal Remote Terminal Connect the radio power antenna lead from the receiver to the amplifier terminal. [. . . ] Repaired and replacement car audio products shall assume the identity of the original for purpose of this warranty and this warranty shall not be extended with respect to such products. To obtain performance of this warranty, contact the nearest Blaupunkt authorized repair facility or our nearest office. A dated purchase receipt or other proof that the product is within the warranty period will be required in order to honor your claim. For further information, write to the Robert Bosch Corporation, 2800 South 25th Avenue, Broadview, Illinois, 60153, attention Blaupunkt Customer Service Department or call 1-800-266-2528. [. . . ]