User manual BOSS GT GT3000D

[. . . ] The amplifier can be reset by turning the remote power off and then on again. If the amplifier shuts down due to a thermal overload condition, please allow it to cool down before powering up. If the amplifier shuts down because of an input overload or short circuit, be sure to repair these conditions before attempting to power up the amplifier again. Five Channel Amplifier GT 1580 Five Channel Bridgeable MOSFET Amplifier Tri-Mode Capable Heavy-duty Aluminum Alloy Heatsink Class A-B Operation Continuously-Variable Low Pass Crossover: 45Hz-90Hz (all channels) Bass Boost Switch: 0 to +18dB (CH1-CH4) Variable Bass Boost: 0 to +18dB (CH5) Remote Subwoofer Level Control Continuously-Variable Input Gain Control High Pass Crossover: 200Hz (Channels 1-4) Nickel Plated RCA And Speaker Level Inputs Remote Turn-On/Turn-Off Circuit MOSFET Pulse Width Modulated Power Supply 2 Ohm Stable Stereo Operation with Output Power Increase Soft Turn-On Circuit Thermal and Speaker Short Protection Circuitry LED Power and Protection Indicators 2 Ohm Operation (in stereo mode) Your GT amplifier was designed to operate effectively at loads as low as 2 Ohms. [. . . ] This means that you can install four 8 Ohm speakers per channel when using parallel wiring. Increasing the number of woofers per channel at low frequencies (up to 100Hz) produces an acoustic coupling effect. This acoustic coupling increases your power output by 3 dB per speaker. When operating at 2 Ohms, the amplifiers will increase their output power by approximately 50%. The current draw will also increase by about the same amount. So be sure you have enough current to run the amplifiers into a 2 Ohm load. If you lack adequate current, your music reproduction will be distorted. Please note: The gain control of any car audio amplifier should not be mistaken for a volume control. It is a sophisticated device, designed to match the output level of your audio source unit to the input level of the amplifier. Drill pilot holes in the mounting surface for the mounting screws and insert the mounting screws into these holes. Note: Before beginning your installation, be sure to take note of any wires, lines or other devices in your vehicle which may be located behind any mounting surface. CHANNEL 3 (+) CHANNEL 3 (-) CHASSIS GROUND CHANNEL 4 (-) CHANNEL 4 (+) From HEAD UNIT SPEAKER OUTPUTS AUDIO SYSTEMS High Level Inputs (5 Channel Amplifier) - GT 1580 WARNING: If you use the HIGH LEVEL (speaker) inputs, do not use the LOW LEVEL inputs at the same time. CHANNEL 2 (+) CHANNEL 2 (-) CHASSIS GROUND CHANNEL 1 (-) CHANNEL 1 (+) Four Channel Ampl ifiers: GT1180, GT 1380, GT148 0 HEAD UNIT CH1/2 CH1 CH2 CH1 CH3 CH5-L CH5 CH1 INPUT 45 CH2 INPUT CH4 INPUT CH3 INPUT From HEAD UNIT SPEAKER OUTPUTS 90 45 90 45 90 From OUTPUT of HEAD UNIT From OUTPUT of HEAD UNIT CH3 CH4 CH2 CH3/4 CH4 CH5-R INPUT MODE CH4 CH5 IN IN 8 CHANNEL 3 (+) CHANNEL 3 (-) CHASSIS GROUND CHANNEL 4 (-) CHANNEL 4 (+) Fi ve Channel A mp i f i e l r: G T 1580 9 Mode Switch in 4ch Position CH1/2 CH1 CH2 CH1 CH3 CH5-L CH5 Note: Use the 4CH mode when using high level (speaker) inputs and the 5CH mode use with for low level (RCA) inputs. 45 45 90 90 45 90 CH3 CH4 CH2 CH3/4 CH4 CH5-R MODE M INPUT ODE CH4 CH5 IN IN Mode Switch Settings MODE SWITCH 5CH IN 4CH IN 2CH IN INPUT 1CH/2CH/3CH/4CH/5CH 1CH/2CH/3CH/4CH 1CH/2CH OUTPUT 1/2/3/4/5CH 1/2/3/4/5CH 1/2/5CH CH3 INPUT From OUTPUT of HEAD UNIT CH1 INPUT CH2 INPUT CH4 INPUT CH3 INPUT From OUTPUT of HEAD UNIT From OUTPUT of HEAD UNIT CH1 INPUT Y adaptor Mode Switch in 5ch Position When the high level (speaker) inputs are used, or when there is no input for CH5, the Mode switch should be placed in the 5CH position. CH1/2 CH1 CH2 CH1 CH3 CH5-L CH5 45 45 90 90 45 90 CH1/2 CH1 CH2 CH1 CH3 CH5-L CH5 CH3 CH4 CH2 CH3/4 CH4 CH5-R MODE M INPUT ODE CH4 CH5 IN IN 45 45 90 90 45 90 CH3 CH4 CH2 CH3/4 CH4 CH5-R MODE M INPUT ODE CH4 CH5 IN IN CH2 INPUT Y adaptor From OUTPUT of HEAD UNIT CH4 INPUT AUDIO SYSTEMS Four Channel Speaker Wiring Four Channel Amplifiers GT 1180, GT 1380, GT 148 0 Dual Tri-Mode Speaker Wiring + + CH1 SPEAKER CH2 SPEAKER + Tri-Mode Operational Output is a unique feature which allows a subwoofer to be operated in MONO mode, while the main speakers are playing STEREO simultaneously on one pair of amplifier output channels. To engage the amplifier in this mode, place the Crossover (Subwoofer) switch in the FULL position. Use a 100V non-poplar capacitor for a high pass crossover and a wire coil inductor to block high frequencies from the subwoofer, as shown in the figure below. Please review the table below for inductor and capacitor component values to determine the desired crossover frequencies. Four Channel Amplifiers GT 1180, GT 1380, GT 148 0 SUBWOOFER MINIMUM CH 3 IMPEDANCE 8 OHMS! SPEAKER CH 1 SPEAKER SUBWOOFER 10 To REMOTE TURN-ON from HEAD UNIT To BATTERY + GROUND CH3 SPEAKER Component Values for 6dB Passive Crossover CH4 SPEAKER + CH 2 SPEAKER + LOW PASS FILTER (INDUCTOR) + SPEAKER IMPEDANCE 4 - 8 OHMS! 11 + + Bridged Speaker Wiring Four Channel Amplifiers GT 1180, GT 1380, GT 148 0 LEFT SPEAKER (SUBWOOFER) HIGH PASS FILTERS (CAPACITORS) + SPEAKER IMPEDANCE 4 - 8 OHMS! GROUND To REMOTE TURN-ON from HEAD UNIT To BATTERY HIGH PASS FILTERS (CAPACITORS) RIGHT SPEAKER (SUBWOOFER) To BATTERY + + To REMOTE TURN-ON from HEAD UNIT SPEAKER IMPEDANCE 4 - 8 OHMS! LOW PASS FILTER (INDUCTOR) SUBWOOFER + + GROUND CH3 SPEAKER SUBWOOFER MINIMUM IMPEDANCE 8 OHMS! + CH 4 SPEAKER + SPEAKER IMPEDANCE 4 - 8 OHMS! AUDIO SYSTEMS Five Channel Speaker Wiring Five Channel Amplifier: GT 1580 CH2 SPEAKER Dual Tri-Mode Speaker Wiring + + + CH 5 SPEAKER (SUBWOOFER) + CH1 SPEAKER Tri-Mode Operational Output is a unique feature which allows a subwoofer to be operated in MONO mode, while the main speakers are playing STEREO simultaneously on one pair of amplifier output channels. To engage the amplifier in this mode, place the Crossover (Subwoofer) switch in the FULL position. Use a 100V non-poplar capacitor for a high pass crossover and a wire coil inductor to block high frequencies from the subwoofer, as shown in the figure below. Please review the table below for inductor and capacitor component values to determine the desired crossover frequencies. SUBWOOFER MINIMUM IMPEDANCE 8 OHMS! Five Channel Amplifiers GT 1580 GROUND CH4 SPEAKER Component Values for 6dB Passive Crossover SPEAKER IMPEDANCE 4 - 8 OHMS! SUBWOOFER CH 1 SPEAKER 12 + CH 2 SPEAKER + To REMOTE TURN-ON from HEAD UNIT To BATTERY CH3 SPEAKER + LOW PASS FILTER (INDUCTOR) HIGH PASS FILTERS (CAPACITORS) + SPEAKER IMPEDANCE 4 - 8 OHMS! 13 + + + + Bridged Speaker Wiring Five Channel Amplifier: GT 1580 BRIDGED LEFT SPEAKER CH 5 SPEAKER (SUBWOOFER) SUBWOOFER MINIMUM IMPEDANCE 8 OHMS! + + SPEAKER IMPEDANCE 4 - 8 OHMS! + CH 5 SPEAKER (SUBWOOFER) GROUND To REMOTE TURN-ON from HEAD UNIT To BATTERY CH 3 SPEAKER HIGH PASS FILTERS (CAPACITORS) + + CH 4 SPEAKER BRIDGED RIGHT SPEAKER + To REMOTE TURN-ON from HEAD UNIT To BATTERY SPEAKER IMPEDANCE 4 - 8 OHMS! LOW PASS FILTER (INDUCTOR) SUBWOOFER MINIMUM IMPEDANCE 8 OHMS! + + SUBWOOFER GROUND SPEAKER IMPEDANCE 4 - 8 OHMS! + + SPEAKER IMPEDANCE 4 - 8 OHMS! AUDIO SYSTEMS Precautions Before you drill or cut any holes, investigate your car's layout very carefully. [. . . ] Please review the table below for inductor and capacitor component values to determine the desired crossover frequencies. SUBWOOFER MINIMUM IMPEDANCE 8 OHMS! Five Channel Amplifiers GT 1580 GROUND CH4 SPEAKER Component Values for 6dB Passive Crossover SPEAKER IMPEDANCE 4 - 8 OHMS! SUBWOOFER CH 1 SPEAKER 12 + CH 2 SPEAKER + To REMOTE TURN-ON from HEAD UNIT To BATTERY CH3 SPEAKER + LOW PASS FILTER (INDUCTOR) HIGH PASS FILTERS (CAPACITORS) + SPEAKER IMPEDANCE 4 - 8 OHMS! 13 + + + + Bridged Speaker Wiring Five Channel Amplifier: GT 1580 BRIDGED LEFT SPEAKER CH 5 SPEAKER (SUBWOOFER) SUBWOOFER MINIMUM IMPEDANCE 8 OHMS! + + SPEAKER IMPEDANCE 4 - 8 OHMS! + CH 5 SPEAKER (SUBWOOFER) GROUND To REMOTE TURN-ON from HEAD UNIT To BATTERY CH 3 SPEAKER HIGH PASS FILTERS (CAPACITORS) + + CH 4 SPEAKER BRIDGED RIGHT SPEAKER + To REMOTE TURN-ON from HEAD UNIT To BATTERY SPEAKER IMPEDANCE 4 - 8 OHMS! LOW PASS FILTER (INDUCTOR) SUBWOOFER MINIMUM IMPEDANCE 8 OHMS! + + SUBWOOFER GROUND SPEAKER IMPEDANCE 4 - 8 OHMS! + + SPEAKER IMPEDANCE 4 - 8 OHMS! AUDIO SYSTEMS Precautions Before you drill or cut any holes, investigate your car's layout very carefully. Take care when you work near the gas tank, fuel lines, hydraulic lines and electrical wiring. Do not operate the amplifier when it is not mounted. [. . . ]