User manual PYRAMID PB736GX

PB-1 3 6 G X PB-336GX PB-536GX PB-736GX PB-936GX PB-1236GX PB-1836GX PB-236GX PB-836GX PB-636GX PB-1036GX USER'S MANUAL www.pyramidcaraudio.com congratulations... on your purchase of a Pyramid Royal Blue Series amplifier. This amplifier extends the Pyramid tradition into a totally new series of amps, designed from the ground up to deliver the power, performance and flexibility the modern car audio enthusiast demands. When you check the list of features offered by the PB-136GX, PB-236GX, PB-336GX, PB-536GX, PB636GX, PB-736GX, PB-836GX, PB-936GX, PB-1036GX, PB-1236GX, PB-1836GX, you'll know you made the right choice with a Pyramid Power amplifier. table of contents general features features and specifications 2-5 high level input connections 27-28 PB-636GX/PB-836GX/PB-1036GX mono input connections PB-136GX 6-7 PB-236GX 8-9 10-15 PB-336GX/PB-536GX/PB-736GX PB-936GX/PB-1236GX/PB-1836GX PB-636GX 16-17 PB-836GX/PB-1036GX 18-19 electrical connections 29 PB-636GX/PB-836GX/PB-1036GX high level mono input connections 30 PB-636GX/PB-836GX/PB-1036GX speaker connections 20-21 PB-136GX/PB-236GX/PB-336GX PB-536GX/PB-636GX/PB-736GX PB-836GX/PB-936GX/PB-1036GX PB-1236GX/PB-1836GX stereo input connections PB-136GX/PB-336GX 31 PB-536GX/PB-736GX PB-936GX/PB-1236GX/PB-1836GX speaker connections 1 PB-236GX/PB-636GX 32-33 PB-836GX/PB-1036GX mounting and installation protection circuitry and troubleshooting precautions PB-136GX/PB-336GX/PB-536GX 22-23 PB-736GX/PB-936GX/PB-1236GX PB-1836GX mono input connections 34 35 36 PB-336GX/PB-536GX 24 PB-736GX/PB-936GX PB-1236GX/PB-1836GX 2/4 channel input connections PB-236GX 25-26 general features PB-136GX · 120 Watts x 2 Output · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Input · Power ON LED Indicator · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On High Performance 240 Watt 2 Channel Amplifier PB-236GX · 100 Watts x 4 Output · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Input · Power ON LED Indicator · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On High Performance 400 Watt 4 Channel Amplifier PB-336GX High Performance 600 Watt 2 Channel Bridgeable MOSFET Amplifier · 300 Watts x 2 Output · 600 Watts x 1 Bridged Output · Variable Hi/Lo Electronic Crossover Network · Variable Bass Boost (0 - +18 dB @ 60Hz) · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Input · Power ON LED Indicator · LED Protection Indicator · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On 2 general features PB-536GX High Performance 800 Watt 2 Channel Bridgeable MOSFET Amplifier PB-636GX High Performance 1000 Watt 4 Channel Bridgeable MOSFET Amplifier PB-736GX High Performance 1000 Watt 2 Channel Bridgeable MOSFET Amplifier · 400 Watts x 2 Output · 800W x 1 Bridged Output · Variable Hi/Lo Electronic Crossover Network · Variable Bass Boost (0 - +18 dB @ 60Hz) · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Inputs · Power ON LED Indicator · LED Protection Indicator · Remote Bass Boost · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On · 250 Watts x 4 Output · 500W x 2 Bridged Output (250W x 2 + 500W x 1) · Dual Variable Hi/Lo Electronic Crossover Network · Dual Variable Bass Boost (0 - +18 dB @ 60Hz) · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Inputs · Power ON LED Indicator · LED Protection Indicator · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On · Tri-Mode Configurable · 500 Watts x 2 Output · 1000W x 1 Bridged Output · Variable Hi/Lo Electronic Crossover Network · Variable Bass Boost (0 - +18 dB @ 60Hz) · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Inputs · Power ON LED Indicator · LED Protection Indicator · Remote Bass Boost · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On 3 general features PB-836GX High Performance 1600 Watt 4 Channel Bridgeable MOSFET Amplifier PB-936GX High Performance 1200 Watt 2 Channel Bridgeable MOSFET Amplifier PB-1036GX High Performance 2000 Watt 4 Channel Bridgeable MOSFET Amplifier · 400 Watts x 4 Output · 800 Watts x 2 Bridged Output(400Wx2+800Wx1) · Dual Variable Hi/Lo Electronic Crossover Network · Dual Variable Bass Boost (0 - +18 dB @ 60Hz) · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Input · Power ON LED Indicator · LED Protection Indicator · Remote Bass Boost · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On · 600 Watts x 2 Output · 1200 Watts x 1 Bridged Output · Variable Hi/Lo Electronic Crossover Network · Variable Bass Boost (0 - +18 dB @ 60Hz) · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Input · Power ON LED Indicator · LED Protection Indicator · Remote Bass Boost · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On · 500 Watts x 4 Output · 1000 Watts x 2 Bridged Output(500Wx2+1000Wx1) · Dual Variable Hi/Lo Electronic Crossover Network · Dual Variable Bass Boost (0 - +18 dB @ 60Hz) · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Input · Power ON LED Indicator · LED Protection Indicator · Remote Bass Boost · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On 4 · Tri-Mode Configurable · Tri-Mode Configurable general features PB-1236GX High Performance 1600 Watt 2 Channel Bridgeable MOSFET Amplifier PB-1836GX High Performance 2400 Watt 2 Channel Bridgeable MOSFET Amplifier · 800 Watts x 2 Output · 1600W x 1 Bridged Output · Variable Hi/Lo Electronic Crossover Network · Variable Bass Boost (0 - +18 dB @ 60Hz) · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Inputs · Power ON LED Indicator · LED Protection Indicator · Remote Bass Boost · 1200 Watts x 2 Output · 2400W x 1 Bridged Output · Variable Hi/Lo Electronic Crossover Network · Variable Bass Boost (0 - +18 dB @ 60Hz) · Variable Input Level (Gain) Control · Remote Turn On/Off · Gold Plated RCA Inputs · High Level MOLEX Inputs · Power ON LED Indicator · LED Protection Indicator · Remote Bass Boost 5 · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On · S/N Ratio: > 95 dB · THD: <0.04% · Thermal Protection · Overload Protection · Short Circuit Protection · Anti-Thump Turn-On features and controls 2 ch amp PB-136GX pb-136GX CH R CH L 2 CHANNEL POWER AMPLIFIER LOW IN CH R CH L HI IN LEVEL POWER high level inputs low level inputs input level control speaker connections +- - + MIN MAX power LED 6 L R FUSE REM GROUND +12V BATT + - + - power terminals power fuse features and specifications 2 ch amp PB-136GX input level control use this control to match the outputs of your head unit to the amplifier. Starting with your head unit set at about the 2 o'clock position, increase the amp level control until distortion begins to occur, and reduce slightly from this point. low level inputs this amp features gold-plated RCA input jacks for high impedance input. Use these with car stereo output which uses RCA-type connector cables. high level inputs if your car stereo lacks RCA-type output jacks, you may connect speaker output leads to these input connectors. power LED this indicator is illuminated when power is applied. power fuse the fuse protects the amplifier and your car's electrical system from short circuit conditions. power terminals use these connectors to deliver power, ground and remote turn-on control to the amplifier. speaker connections these terminals are 14K gold plated to guarantee high conductivity and minimum signal loss. output power @ 14.4v DC, 1KHz RMS Power @ 4 Ohms Maximum Power Output frequency response input impedance low level inputs high level inputs input sensitivity low level inputs high level inputs power supply voltage matching speaker impedance stereo mode bridged mode maximum current draw dimensions (W x H x L) mm inches 30 Watts x 2 120 Watts x 2 15 Hz-30 KHz 10K Ohms 100 Ohms 250mV 2.5V 14.4V DC Neg. Ground (10.5-16V) 2-4 Ohms 5A 278 x 81 x 209 10.9 x 3.2 x 8.25 7 features and controls 4 ch amp PB-236GX pb-236GX +- - + CH4 CH3 4 CHANNEL POWER AMPLIFIER LOW IN CH 4 CH 3 LOW IN CH 2 CH 1 power LED +- - + CH2 CH1 HI IN LEVEL POWER LEVEL HI IN MIN MAX MIN MAX high level inputs low level inputs input level control high level inputs low level inputs input level control 8 CH1 CH2 CH3 CH4 FUSE REM GROUND +12V BATT + - + - + - + - speaker connections power terminals power fuse features and specifications 4 ch amp PB-236GX input level control use this control to match the outputs of your head unit to the amplifier. Starting with your head unit set at about the 2 o'clock position, increase the amp level control until distortion begins to occur, and reduce slightly from this point. low level inputs this amp features gold-plated RCA input jacks for high impedance input. Use these with car stereo output which uses RCA-type connector cables. high level inputs if your car stereo lacks RCA-type output jacks, you may connect speaker output leads to these input connectors. power LED this indicator is illuminated when power is applied. power fuse the fuse protects the amplifier and your car's electrical system from short circuit conditions. power terminals use these connectors to deliver power, ground and remote turn-on control to the amplifier. speaker connections these terminals are 14K gold plated to guarantee high conductivity and minimum signal loss. output power @ 14.4v DC, 1KHz RMS Power @ 4 Ohms Maximum Power Output frequency response input impedance low level inputs high level inputs input sensitivity low level inputs high level inputs power supply voltage matching speaker impedance stereo mode bridged mode maximum current draw dimensions (W x H x L) mm inches 30 Watts x 4 100 Watts x 4 15 Hz-30 KHz 10K Ohms 100 Ohms 250mV 2.5V 14.4V DC Neg. Ground (10.5-16V) 2-4 Ohms 10A 9 278 x 81 x 235 10.9 x 3.2 x 9.25 features and controls pb-336GX pb-536GX power LED protection LED Remote Bass Boost (PB-336GX Without ) 2 ch amp PB-336GX · PB-536GX 2 CHANNEL MOSFET AMPLIFIER REMOTE BASS BOOST HPF PROTECT POWER L LPF BASS BOOST LEVEL FREQ. HI IN R L R 80 Hz 2.5k 35 Hz 400 0 +18db +--+ HPF LPF FULL MIN MAX LOW IN high pass frequency control low pass frequency control bass boost level crossover mode selector high level inputs low level inputs input level control 10 L R FUSE REM GROUND +12V BATT + - + - speaker connections + BRIDGED power terminals - power fuse features and specifications crossover mode selector when used with normal, full range systems, set this switch to "FULL." If you wish to use the internal crossover to power a driver of specific frequency range, use the "LOWPASS" or "HIGHPASS" settings. use this control to match the outputs of your head unit to the amplifier. Starting with your head unit set at about the 2 o'clock position, increase the amp level control until distortion begins to occur, and reduce slightly from this point. when the crossover selector switch is in "low pass" mode, this control sets the upper frequency limit for audio program sent to the speakers. when the crossover selector switch is in "high pass" mode, this control sets the lower frequency limit for audio program sent to the speakers. Plug in the Remote Bass Boost Control wire in here. this control permits adjustment of the bass level up to an increase of approximately 18 dB. this amp features gold-plated RCA input jacks for high impedance input. Use these with car stereo output which uses RCA-type connector cables. if your car stereo lacks RCA-type output jacks, you may connect speaker output leads to these input connectors. this indicator is illuminated when power is applied. this indicator is illuminated when built-in protection circuitry is activated. the fuse protects the amplifier and your car's electrical system from short circuit conditions. use these connectors to deliver power, ground and remote turn-on control to the amplifier. these terminals are 14K gold plated to guarantee high conductivity and minimum signal loss. input level control 2 ch amp PB-336GX · PB-536GX 40 Watts x 2 60 Watts x 2 300 Watts x 2 50 Watts x 2 75 Watts x 2 400 Watts x 2 output power @ 14.4v DC, 1KHz RMS Power @ 4 Ohms RMS Power @ 2 Ohms Maximum Power Output frequency response input impedance low level inputs high level inputs input sensitivity low level inputs high level inputs power supply voltage matching speaker impedance stereo mode bridged mode maximum current draw dimensions (W x H x L) mm inches 15 Hz-30 KHz 10K Ohms 100 Ohms 250mV 2.5V 14.4V DC Neg. Ground (10.5-16V) 2-4 Ohms 4-8 Ohms 15A 278 x 81 x 209 10.9 x 3.2x 8.25 low pass frequency control high pass frequency control Remote Bass Boost bass boost level control low level inputs high level inputs power LED protection LED power fuse power terminals speaker connections 11 15A 278 x 81 x 235 10.9 x 3.2x 9.25 2 ch amp PB-736GX · PB-936GX · PB-1236GX features and controls pb-736GX pb-936GX pb-1236GX power LED protection LED Remote Bass Boost high pass frequency control low pass frequency control bass boost level crossover mode selector 2 CHANNEL MOSFET AMPLIFIER REMOTE BASS BOOST HPF PROTECT POWER L LPF BASS BOOST LEVEL FREQ. HI IN R L R 80 Hz 2.5k 35 Hz 400 0 +18db +--+ HPF LPF FULL MIN MAX LOW IN high level inputs low level inputs input level control 12 L R FUSE REM GROUND +12V BATT + - + - speaker connections + BRIDGED power terminals - power fuse features and specifications crossover mode selectors when used with normal, full range systems, set these switches to "FULL." If you wish to use the internal crossovers to power a driver of specific frequency range, use the "LOWPASS" or "HIGHPASS" settings. use these controls to match the outputs of your head unit to the amplifier. Starting with your head unit set at about the 2 o'clock position, increase the amp level controls until distortion begins to occur, and reduce slightly from this point. when one or both of the crossover selector switches is in "low pass" mode, one can set the upper frequency limit for audio program sent to the speakers. when the one or both of crossover selector switch is in "high pass" mode, one can set the lower frequency limit for audio program sent to the speakers. Plug in the Remote Bass Boost Control wire in here. this control permits adjustment of the bass level up to an increase of approximately 18 dB in either or both pairs of channels. this amp features gold-plated RCA input jacks for high impedance input. Use these with car stereo output which uses RCA-type connector cables. if your car stereo lacks RCA-type output jacks, you may connect speaker output leads to these input connectors. this indicator is illuminated when power is applied. this indicator is illuminated when built-in protection circuitry is activated. the fuse protects the amplifier and your car's electrical system from short circuit conditions. use these connectors to deliver power, ground and remote turn-on control to the amplifier. these terminals are 14K gold plated to guarantee high conductivity and minimum signal loss. 2 ch amp PB-736GX · PB-936GX PB-736GX PB-936GX input level controls output power @ 14.4v DC, 1KHz RMS Power @ 4 Ohms RMS Power @ 2 Ohms Maximum Power Output frequency response input impedance low level inputs high level inputs input sensitivity low level inputs high level inputs power supply voltage matching speaker impedance stereo mode bridged mode maximum current draw dimensions (W x H x L) mm inches 75 Watts x 2 125 Watts x 2 500 Watts x 2 90 Watts x 2 150 Watts x 2 600 Watts x 2 15 Hz-30 KHz 10K Ohms 100 Ohms 250mV 2.5V 14.4V DC Neg. Ground (10.5-16V) 2-4 Ohms 4-8 Ohms 20 A 278 x 81 x 305 10.9 x 3.2 x 12 30 A 278 x 81 x 343 10.9 x 3.2 x 13.5 low pass frequency controls high pass frequency controls 13 Remote Bass Boost bass boost level controls low level inputs high level inputs power LED protection LED power fuse power terminals speaker connections features and controls 2 ch amp PB 1836GX pb-1836GX power LED protection LED Remote Bass Boost high pass frequency control low pass frequency control bass boost level crossover mode selector 2 CHANNEL MOSFET AMPLIFIER REMOTE BASS BOOST HPF PROTECT POWER L LPF BASS BOOST LEVEL FREQ. HI IN R L R 80 Hz 2.5k 35 Hz 400 0 +18db +--+ HPF LPF FULL MIN MAX LOW IN high level inputs low level inputs input level control 14 L R FUSE REM GROUND +12V BATT + - + - speaker connections + BRIDGED power terminals - power fuse features and specifications crossover mode selectors when used with normal, full range systems, set these switches to "FULL." If you wish to use the internal crossovers to power a driver of specific frequency range, use the "LOWPASS" or "HIGHPASS" settings. use these controls to match the outputs of your head unit to the amplifier. Starting with your head unit set at about the 2 o'clock position, increase the amp level controls until distortion begins to occur, and reduce slightly from this point. when one or both of the crossover selector switches is in "low pass" mode, one can set the upper frequency limit for audio program sent to the speakers. when the one or both of crossover selector switch is in "high pass" mode, one can set the lower frequency limit for audio program sent to the speakers. Plug in the Remote Bass Boost Control wire in here. this control permits adjustment of the bass level up to an increase of approximately 18 dB in either or both pairs of channels. this amp features gold-plated RCA input jacks for high impedance input. Use these with car stereo output which uses RCA-type connector cables. if your car stereo lacks RCA-type output jacks, you may connect speaker output leads to these input connectors. this indicator is illuminated when power is applied. this indicator is illuminated when built-in protection circuitry is activated. the fuse protects the amplifier and your car's electrical system from short circuit conditions. use these connectors to deliver power, ground and remote turn-on control to the amplifier. these terminals are 14K gold plated to guarantee high conductivity and minimum signal loss. 2 ch amp PB-1236GX · PB-1836GX PB-1236GX 125 Watts x 2 200 Watts x 2 800 Watts x 2 PB-1836GX input level controls output power @ 14.4v DC, 1KHz RMS Power @ 4 Ohms RMS Power @ 2 Ohms Maximum Power Output frequency response input impedance low level inputs high level inputs input sensitivity low level inputs high level inputs power supply voltage matching speaker impedance stereo mode bridged mode maximum current draw dimensions (W x H x L) mm inches 150 Watts x 2 225 Watts x 2 1200 Watts x 2 15 Hz-30 KHz 10K Ohms 100 Ohms 250mV 2.5V 14.4V DC Neg. Ground (10.5-16V) 2-4 Ohms 4-8 Ohms 30 A 278 x 81 x 381 10.9 x 3.2 x 15 40 A 278 x 81 x 432 10.9 x 3.2 x 17 low pass frequency controls high pass frequency controls 15 Remote Bass Boost bass boost level controls low level inputs high level inputs power LED protection LED power fuse power terminals speaker connections features and controls 4 ch amp PB-636GX ch 3/4 input level control ch 1/2 input level control CH 4 pb-636GX ch 3/4 high level inputs +- - + CH4 CH3 LEVEL FREQ. BASS BOOST LPF HPF PROTECT POWER HPF LPF BASS BOOST FREQ. LEVEL CH 2 ch 1/2 high level inputs +- - + CH2 CH1 HI IN CH 3 MIN MAX HPF LPF FULL 0 +18db 35 Hz 400 80 Hz 2.5k 80 Hz 2.5k 35 Hz 400 0 +18db HPF LPF MIN FULL MAX CH 1 HI IN CHANNEL 3/4 LOW IN CHANNEL 1/2 4 CHANNEL MOSFET AMPLIFIER LOW IN ch 3/4 low level inputs ch 3/4 crossover mode selector switch ch 3/4 bass boost level control ch 3/4 low pass frequency control ch 3/4 high pass frequency control protection LED power LED ch 1/2 low level inputs ch 1/2 crossover mode selector switch ch 1/2 bass boost level control ch 1/2 low pass frequency control ch 1/2 high pass frequency control 16 CH1 CH2 CH3 CH4 FUSE REM GROUND +12V BATT + - + - + - + - speaker connections + BRIDGED power terminals + BRIDGED - power fuse features and specifications 4 ch amp PB-636GX dual crossover mode selectors when used with normal, full range systems, set these switches to "FULL." If you wish to use the internal crossovers to power a driver of specific frequency range, use the "LOWPASS" or "HIGHPASS" settings. dual input level controls use these controls to match the outputs of your head unit to the amplifier. Starting with your head unit set at about the 2 o'clock position, increase the amp level controls until distortion begins to occur, and reduce slightly from this point. dual low pass frequency controls when one or both of the crossover selector switches is in "low pass" mode, one can set the upper frequency limit for audio program sent to the speakers. dual high pass frequency controls when the one or both of crossover selector switch is in "high pass" mode, one can set the lower frequency limit for audio program sent to the speakers. dual bass boost level controls this control permits adjustment of the bass level up to an increase of approximately 18 dB in either or both pairs of channels. low level inputs this amp features gold-plated RCA input jacks for high impedance input. Use these with car stereo output which uses RCA-type connector cables. high level inputs if your car stereo lacks RCA-type output jacks, you may connect speaker output leads to these input connectors. power LED this indicator is illuminated when power is applied. protection LED this indicator is illuminated when built-in protection circuitry is activated. power fuse the fuse protects the amplifier and your car's electrical system from short circuit conditions. power terminals use these connectors to deliver power, ground and remote turn-on control to the amplifier. speaker connections these terminals are 14K gold plated to guarantee high conductivity and minimum signal loss. output power @ 14.4v DC, 1KHz RMS Power @ 4 Ohms RMS Power @ 2 Ohms Maximum Power Output frequency response input impedance low level inputs high level inputs input sensitivity low level inputs high level inputs power supply voltage matching speaker impedance stereo mode bridged mode maximum current draw dimensions (W x H x L) mm inches 35 Watts x 4 55 Watts x 4 250 Watts x 4 15 Hz-30 KHz 10K Ohms 100 Ohms 250mV 2.5V 14.4V DC Neg. Ground (10.5-16V) 2-4 Ohms 4-8 Ohms 20A 17 278 x 81 x 305 10.9 x3.2 x 12 features and controls pb-836GX pb-1036GX ch 3/4 low level inputs ch 3/4 crossover mode selector switch ch 3/4 bass boost level control ch 3/4 low pass frequency control ch 3/4 high pass frequency control ch 3/4 input level control ch 3/4 high level inputs +- - + CH4 CH3 4 ch amp PB-836GX · PB-1036GX ch 1/2 input level control CH 4 LEVEL FREQ. BASS BOOST LPF HPF HPF LPF BASS BOOST FREQ. LEVEL CH 2 ch 1/2 high level inputs +- - + CH2 CH1 HI IN CH 3 MIN MAX HPF LPF FULL 0 +18db 35 Hz 400 80 Hz 2.5k 80 Hz 2.5k 35 Hz 400 0 +18db HPF LPF MIN FULL MAX CH 1 HI IN CHANNEL 3/4 LOW IN REMOTE BASS BOOST(CH3/4) PROTECT POWER CHANNEL 1/2 LOW IN 4 CHANNEL MOSFET AMPLIFIER ch 1/2 low level inputs ch 1/2 crossover mode selector switch ch 1/2 bass boost level control ch 1/2 low pass frequency control ch 1/2 high pass frequency control 18 power LED protection LED CH1 CH2 CH3 CH4 FUSE REM GROUND +12V BATT + - + - + -