AUDIO SYSTEMS OWNER'S MANUAL AVA-250 AVA-450 AVA-550 AVA-650 AVA-700 AVA-750 AVA-800 TRI-MODE CAPABLE SIMUTANEOUS STEREO & BRIDGED OPERATIONS |CES98|
Thank you for purchasing a BOSS car audio amplifier, The BOSS amplifiers were engineered and designed in the U.S.A. to the highest quality level and will provide you with years of high quality sound level amplification and reproduction. MODEL : AVA-650/800 MODEL : AVA-250/450/550/700/750 AMPLIFIER SPECIFICATIONS Model AVA-250 AVA-450 AVA-550 AVA-650 AVA-700 AVA-750 AVA-800 RMS Watts per Channel.
Ill BUILT-IN ELECTRONIC CROSSOVER III All BOSS amplifiers features built-in electronic crossovers. The crossover frequency is adjustable from 45Hz to 120HZ (LPF) and from 80HZ to 500HZ (HPF) at a 12dB octave slope. The crossover will now be in operation on both channels one and two.
Model:AVA-450 D 320 Watt Bridgeable Power Amplifier D Power Output Per Channel: 75 Watts RMS D Two Channel Bridgeable Amplifier D Heavy Duty Aluminum Alloy Heatsink Chassis D Class A-B Operation D Built-in Electronic Crossover Network Adjustable from 40Hz~300Hz D Continuously Variable Input Gain Adjustment D Gold Plated RCA Low Level High Impedance Input D Wire Harness, High Level Low Impedance Input D Remote Turn-on/Turn-off Circuit D MOSFET Pulse Width Modulated Power Supply D 2 Ohm Stable Operation with
Model:AVA-650 D 1000 Wan Bridgeable Power Amplifier D Power Output Per Channel: 75 Watts RMS D Four Channel Bridgeable Amplifier D Tri-Way Configuration: 75Watts Per Channel into Four Channels, 160 Watts Per Channel Into Two Channels, 75Watts Per Channel Into Two Channels plus 160 Watts into a Third Channel D Heavy Duty Aluminum Alloy Heatsink Chassis D Class AB Operation D Built-in Electronic Crossover Network Adjustable from 40Hz~300Hz D Continuously Variable Input Gain Adjustment D Gold Plated RCA, Low L
Model:AVA-750 D 800 Watt Bridgeable Power Amplifier D Power Output Per Channel: 200 Watts RMS DTwo Channel Bridgeable Amplifier D Heavy Duty Aluminum Alloy Heatsink Chassis D Class A-B Operation D Built-in Electronic Crossover Network Adjustable from 40Hz~300Hz D Continuously Variable Input Gain Adjustment D Gold Plated RCA, Low Level High Impedance Input D Wire Harness, High Level Low Impedance Input D Remote Turn-on/Turn-off Circuit D MOSFET Pulse Width Modulated Power Supply D 2 Ohm Stable Operation with
Ill A FEW WORDS ABOUT PROTECTION CIRCUITRY III The protection circuitry will disable the amplifier if it senses an input overload, speaker short circuit or extreme high temperature conditions. When the protection circuit Is in operation the LED Indicator on the panel of the unit will light Indicating that the amplifier has gone Into a self preservation mode. At this time please check your system to see what Is causing the protection circuit to fire.
Ill POWER FUSE III Power fuses protects both this amplifier and the automobile electrical system from wrong conditions. The fuse is a standard automotive type. The capacity is each Model current requirement is different. Replace only with same current rating fuse otherwise damage or fire can result.
Ill 2 SPEAKERS WIRING III MODEL : AVA-250/450/550/700/750 III BRIDGED SPEAKERS WIRING MODEL : AVA-250/450/550/700/750 CONNECT THE NEGATIVE SPEAKER TERMINAL TO THE NEGATIVE TERMINAL OF R-CHANNEL ON THE AMPLIFIER CONNECT THE POSITIVE SPEAKER TERMINAL OF L-CHANNEL ON THE AMPLIFIER -8-
Ill TRI WAY SPEAKERS WIRING III TRI MODE OPERATIONAL OUTPUT allows a Crossover (Subwoofer) to be operated in MONO mode while the main speakers are playing in Stereo. Leave the Crossover (Subwoofer) switch on "Full" position. Use a 100 Volt, non-polar capacitor tor a high pass crossover and a wire coil (inductor) to block high frequencies from the Crossover (Subwoofer) as shown In the figure below, Capacitor and inductor values as written in the below determine the crossover frequencies.
Ill 4 SPEAKERS WIRING 4 CHANNEL MODEL : AVA-650/800 III BRIDGED SPEAKERS WIRING MODEL : AVA-650/800 -10-
Ill TRI WAY SPEAKERS WIRING MODEL : AVA-650/800 INDUCTOR LOW PASS FILTER CAPACITOR HIGH PASS FILTER COMPONENT VALUES FOR 6 dB PASSIVE CROSSOVER FREQUENCY 80 Hz 100 Hz 120 Hz 150 Hz INDUCTOR 7.5mH 6.5 mH 5.
Ill POWER WIRING III MODEL ; AVA-250/450/550/700/750 MODEL : AVA-650/800 -12-
Ill WARNINGS III Investigate the layout of your automobile thoroughly before drilling or cutting any holes, Take care when you work near the gas tanks, lines or hydraulic lines, and electrical wiring. Dont use power amplifier unmounted. Attach this system securely to the automobile to prevent damage, particularly in the event of am accident. Dont mount this system so that the wire connections are unprotected or are subject to pinching of damage from nearby objects.
Ill TROUBLE SHOOTING III Before removing your Amplifier, refer to list bellow and follow suggested procedure. Speaker and their wires be tested first. No Output: a, Confirm that all terminal strip connections are firmly connected. b. Check in-line and built-in fuses. Both "+ 12V" and "RMT" terminals must have + 12 Volts to chassis ground, c. Confirm that signal source [Car Radio/deck. EQ, X-over etc.) is connected and is supplying output signal.
