User manual BLITZ BZAKT04 INSTALL GUIDE

[. . . ] Always use high quality shielded RCA cables. 8. LINE OUT RCA JACKS The LINE OUT allows you to build multiple amplifier systems without having to use splitter cords to distribute the signal. Now it is simple a matter of bringing one set of RCAs into the first amplifier, then using the line out RCA jacks as the feed to the next amplifier. 5 Features & Controls Features & Controls 9. LED Indicator - POWER : This GREEN LED will illuminate when the amplifier is turned "ON". If it fails to illuminate, check the power connections to the Amplifier and fuses. - PROTECTION : The amplifier protection circuitry will disable the amplifier if input overload, short circuit or extremely high temperature conditions are detected. [. . . ] If you observe that the Protection LED is lit, please check the system carefully to determine what has caused the protection circuit to engage. The amplifier can be reset by turning the remote power off and then on again. If the amplifier shut down due to a thermal overload condition, please allow it to cool down before restarting. If the amplifier shut down because of an input overload or short circuit, be sure to repair these conditions before attempting to power up the amplifier again. 10. B- TERMINAL (CHASSIS GROUND) To avoid unwanted ignition noise caused by ground loops, it is essential that the Amplifier be grounded to a clean, bare, metal surface of the vehicles chassis. 11. REMOTE POWER ON To remote wire car stereo. This amplifier is turned "ON" remotely when vehicle's stereo is turned "ON". Note: IF YOUR RADIO DOES NOT HAVE +12 VOLT OUTPUT LEAD WHEN TURNED ON, THE "REMOTE" TERMINAL ON THE AMPLIFIER CAN BE CONNECTED TO VEHICLES ACCESSORY CIRCUIT WHICH PROVIDES +12V WHEN THE CAR IS ON. 6 Features & Controls Features & Controls 12. B+ TERMINAL (BATTERY POSITIVE) Due to the power requirements of the Amplifier, this connection should be made directly to the positive(+) terminal of battery. For safety measure, install an in-line fuse Holder (not included) as close to the battery positive(+) terminal as possible with an ampere rating not to exceed total value of fuses in Amp. 13. SPEAKER TERMINAL Fig 1. REMOTE PROT. PWR. LEVEL EL LEV MAX MIN MIN MAX Remote Bass Level Control : Optional Remote Bass Boost Control : This control adjusts the Bass Boost gain for the amplifier's speaker output (0 - +12dB) 7 Installation & Precautions Installation 1. Find a suitable location in the vehicle to mount the amplifier. Make sure there is sufficient air flow around the intended mounting location. Bolt the amplifier to the mounting surface. Confirm that your head unit or other equipment is turned off while connecting the input jacks and speaker terminals. If you need to replace the power fuse, only replace it with a fuse identical to that supplied with the system. Using a fuse fo a different type or rating may result in damage to your system which isn't covered by the manufacturer's warranty. 8 System Wiring System Wiring BZA-2290 / BZA-2390 / BZA-2490 MONO MODE L SPEAKER BRIDGED MODE R SUB WOOFER 4~8 OHM STEREO MODE L LIFT SPEAKER 2~8 OHM SPEAKER BRIDGED MODE R RIGHT SPEAKER 2~8 OHM TRI MODE BRIDGED 4~8 OHM SPEAKER L LIFT SPEAKER 4~8 OHM BRIDGED MODE R RIGHT SPEAKER 4~8 OHM INDUCTOR LOW PASS FILTER CAPACITOR HIGH PASS FILTER 9 System Wiring System Wiring BZA-4190 2CHANNEL MODE BRIDGED BRIDGED BRIDGED 4~8 OHM CH1 CH2 CH3 CH4 BRIDGED 4~8 OHM 3CHANNEL MODE BRIDGED BRIDGED CH1 CH1 SPEAKER 2~8 OHM CH2 CH3 CH4 BRIDGED 4~8 OHM CH2 SPEAKER 2~8 OHM 4CHANNEL MODE BRIDGED BRIDGED CH1 CH1 SPEAKER 2~8 OHM CH2 CH3 CH4 CH4 SPEAKER 2~8 OHM CH2 SPEAKER 2~8 OHM CH3 SPEAKER 2~8 OHM 10 System Wiring System Wiring BZA-4190 6CHANNEL MODE SUB WOOFER 4~8 OHM SUB WOOFER 4~8 OHM BRIDGED BRIDGED CH1 CH1 SPEAKER 4~8 OHM CH2 CH3 CH4 CH4 SPEAKER 4~8 OHM CH2 SPEAKER 4~8 OHM CH3 SPEAKER 4~8 OHM INDUCTOR LOW PASS FILTER CAPACITOR HIGH PASS FILTER 11 Troubleshooting Troubleshooting Amplifier will not power up. Check for good ground connection. Check that remote DC terminal has at least 3V DC. Check that there is battery power on the + terminal. If it is lit, shut off amplifier briefly and then repower it. High hiss or engine noise (alternator whine) in speakers. Disconnect all RCA inputs to the amplifier(s)-if hiss/noise disappears, then plug in the component driving the amplifier and unplug it's inputs. If hiss/ noise disappears, go on until the faulty/noisy component is found. It is best to set the amplifier's input level as low as possible. The best subjective S/N ratio is obtainable this way. Try to drive as high a signal level from the head unit as possible. Protection LED comes on when the amplifier is powered up. Check for shorts on speaker leads. Check that the volume control on the head unit is turned down low. [. . . ] Check that the volume control on the head unit is turned down low. Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty. Amplifier(s) gets very hot. Check that the minimum speaker impedance for that model is correct. Check that there is good airflow around the amplifier. [. . . ]