User manual BOSS CX250

[. . . ] · CHAOS EXXTREME amplifier · Remote subwoofer level control ·High input cable with connector · Four (4) mounting screws CHAOS EXXTREME MOSFET Amplifier User's Manual - page 2 Features Your new CHAOS EXXTREME amplifier features the following: · Class A-B operation · Bridgeable outputs (except CX1100M and CX2000M) · Tri-Mode capable (except CX1100M and CX2000M) · MOSFET PWM (Pulse Width Modulated) Power Supply · 2 Ohm stable stereo operation with output power increase · Thermal and speaker short protection · Soft turn-on circuit · Remote turn-on/turn-off circuit · Variable input gain control · Variable low pass crossover(s) · Fixed high pass crossover(s) · Variable 0 to +18dB Bass Boost · Nickel-plated RCA low level and high level inputs · LED power and protection indicators · Silver anodized heatsink · Remote subwoofer level control About 2 Ohm operation Your CHAOS EXXTREME amplifier has been designed to operate efficiently at loads down to 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 (below 100Hz) produces an acoustic coupling effect. [. . . ] Then connect the fuse holder to the "BATT+" connection on the amplifier. If multiple amplifiers are being used in your system, either: · Run a separate pair of cables from the battery and a chassis ground point to each amplifier. -or· Run a #4 cable from the fuse holder at the battery to a distribution block at or near the amplifier's location. Then run separate cables from the amplifier to this distribution block and to independent chassis ground points. Connect all line inputs and outputs (if used) using high-quality cables. Set all level controls to minimum position, and set all crossover controls/switches to the desired frequency points. Then set the volume control on the head unit to about 3/4 volume, and adjust the amplifier's input level control(s) to just below the level of distortion. Further fine tuning of the various controls may be necessary to obtain best results. Don't misuse the level control! Do not mistake the input level control for a volume control!It is designed ONLY to match the output level of your audio source to the input level of your amplifier. Do not adjust this input level to maximum unless your input level requires it. Ignoring these instructions will result in an input overload to the amplifier, and excessive audio distortion. It can also cause the protection circuit to engage. CHAOS EXXTREME MOSFET Amplifier User's Manual - page 5 Low Level Input Wiring Low-level (RCA) input wiring is preferred for best audio performance. NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time! 2-Channel Amplifiers CX250, CX450, CX550, CX750, CX950, and CX1250 Remote Subwoofer Level Control LEFT RIGHT INPUT LEVEL BASS BOOST + L R+ INPUTS CROSSOVER T WO C HA NNE L MOS FE T P OW ER A MP LIF IE R To Audio Outputs of head unit or signal processor 4-Channel Amplifiers CX600, CX650, CX800, and CX1000 Remote Subwoofer Level Control CH 1 CH 2 CH3/4 CONTROLS CH1/2 CONTROLS CH FOUR CHANNEL MOS FE T P OW ER A MP LI FIE R 3 CH 4 CH + 1 CH 2+ CH + 3 CH 4+ INPUTS To FRONT Audio Outputs of head unit or signal processor To REAR Audio Outputs of head unit or signal processor CHAOS EXXTREME MOSFET Amplifier User's Manual - page 6 Low Level Input Wiring Low-level (RCA) input wiring is preferred for best audio performance. NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time! 5-Channel Amplifier CX1800 Remote Subwoofer Level Control CH1/2 CONTROLS CH 1 CH 3 INPUT CONTROLS CROSSOVER BASS BOOST CH 5R INPUT CONTROLS CROSSOVER CH + CH 1 3 CH 2+ 4+ CH CH + 2 CH 4 INPUT CONTROLS CROSSOVER BASS BOOST CH 5L INPUT MODE BASS BOOST CH5 CH5 CONTROLS CH3/4 CONTROLS To SUBWOOFER Audio Outputs of head unit or signal processor (if present) To FRONT Audio Outputs of head unit or signal processor To REAR Audio Outputs of head unit or signal processor CHAOS EXXTREME MOSFET Amplifier User's Manual - page 7 Low Level Input Wiring Low-level (RCA) input wiring is preferred for best audio performance. NOTE: Do not connect BOTH the high level and low level inputs from your receiver to your amplifier at the same time! MonoBlock Amplifier CX1100M Remote Subwoofer Level Control LEFT RIGHT + L R+ BASS BOOST CROSSOVER INPUT CONTROLS INPUTS MOS FE T MO NOBLOC K P OW ER A MP LI FIE R To Audio Outputs of head unit or signal processor MonoBlock Amplifier CX2000M Remote Subwoofer Level Control LEFT RIGHT INPUT LEVEL BASS BOOST CROSSOVER FREQUENCY + L R+ INPUTS MOS FE T MO NOBLOC K P OW ER A MP LI FIE R To Audio Outputs of head unit or signal processor CHAOS EXXTREME MOSFET Amplifier User's Manual - page 8 High Level Input Wiring The high level input(s) should only be used when your head unit lacks RCA outputs. If the RCA outputs are not present, connect the speaker outputs from the receiver to the high level input connector of the amplifier. Connect the Negative (-) terminal of the subwoofer to the R (-) amplifier terminal. FUSE to REMOTE TURN-ON terminal of head unit Battery CHAOS EXXTREME MOSFET Amplifier User's Manual - page 12 Power and Speaker Wiring Tri-Mode 2-Channel Amplifiers CX250, CX450, CX550, CX750, CX950, and CX1250 Tri-mode operation allows you to connect this amplifier to a pair of main speakers plus a subwoofer on one pair of output channels. The main speakers will operate in STEREO while the subwoofer simultaneously operates in MONO. [. . . ] Check that the minimum speaker impedance for the amp model is correct. In some applications, it may be necessary to add external cooling fan(s). This is usually caused by poor quality RCA cables, which can pick up radiated noise. [. . . ]