User manual MB QUART PAB 1200.1 INSTALLATION

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Manual abstract: user guide MB QUART PAB 1200.1INSTALLATION

Detailed instructions for use are in the User's Guide.

[. . . ] By purchasing an amplifier from MB QUART, you have decided on a product of the highest technical quality. MB QUART wishes you great enjoyment with your amplifier. Should you have any questions about this system or other MB QUART products, please call us personally or send us an e-mail at info@mbquart. 1 D Mono Amplifier AMPLIFIER APPLICATIONS P PAB 2100 2-Channel Amplifier Full range stereo Full range mono Stereo high pass with mono low-pass in a 2 way active, or bi-amplified system P PAB 4100 4-Channel Amplifier 4 channel full range system 2 or 3 channel full range system 2 way active, or bi-amplified system with mono bass 2 way active, or bi-amplified system with mono bass, and faded highs/lows Front/rear high pass, using a 2 channel amplifier for mono sub bass P PAB 5400 5-Channel Amplifier 5 channel discrete, one being mono low pass 3 or 4 channel discrete, one being mono low pass 3 way active, with mono bass Front/rear high pass, with constant sub bass P PAB 1200. [. . . ] CH 5: - The channel 5 functions were chosen to be very specific to mono bass operation, and not switchable: - The LOW PASS filter has a variable range from 30 Hz to 150 Hz. - The input sensitivities for rated output powers are variable from 0. - All crossovers are fully variable in their respective ranges. The 1 channel mono amplifiers are capable of 4, 2 & 1 ohm loads and can be used in any of the "bi-amplifier" systems described in the 2 and 4 channel directions. The line input signal is routed directly to the line output RCA's jacks regardless of the crossover settings. the REMOTE jack allows the addition of the Bass Remote module which controls the BASS EQ signal. - SUBSONIC allows control from 10 Hz to 35Hz - BASS EQ allows control from 0dB to 9 dB - LOW PASS allows control from 35Hz to 250Hz - PHASE shift allows 0 degrees to 180 degrees - LEVEL: allows you to match the amplifier input level (gain) to the Radio/CD player output level. - POWER: indicates that the amp has power, ground and remote turn-on input via a green L. - PROTECT: indicates that the amplifier has detected a fault and will not operate. There are several possible problems that can cause the amplifier to go into the protect mode. See the trouble shooting guide in the back of the manual for details. - BALANCED INPUT: Accepts line level balanced input from 0. Line Level: Refer to the section "Setting up systems after installation for best performance" 5. Interconnect cable checklist: A MONO signal source is required, such as would be available from the mono sub bass output of an active crossover, whether stand alone, or built into a head unit or equalizer. Important: Do not be tempted to connect the hot, or positive outputs, from any source together to obtain a mono signal, as this could very well damage the output stage of that source. It is necessary to feed the SAME signal to both left and right inputs via a Y-adapter RCA cable. TIP: If you are using the mono sub bass output of an active crossover, there is nothing wrong with switching in the low pass filter in these amplifiers for a steeper low pass rolloff. Stereo high pass with mono low-pass in a 2 way active, or bi-amplified system English 7 In this application we will use a 2 channel amplifier for the high frequencies, and a second one for the low frequencies, or mono sub bass. Crossover frequency control checklist: Highs amplifier: - HI PASS: 100 Hz - LOW PASS: N/A Lows amplifier: - HI PASS (Subsonic filter): 10 Hz to 40 Hz - LOW PASS: 100 Hz Please note that these frequency points are suggestions only. Refer to the loudspeaker manufacturer specifications and the section "Setting up systems after installation for best performance" Level control checklist: Refer to the section "Setting up systems after installation for best performance" Minimum final loudspeaker impedances: - 2 ohm per channel stereo. Here we show how to use the 4 channel amplifiers as straightforward discrete 4 channel full range units. Level control checklist: Refer to the section "Setting up systems after installation for best performance" Minimum final loudspeaker impedances: 2 ohm per channel Here we show how to use the 4 channel amplifiers as full range 2 or 3 channel units by taking advantage of the mono bridging capability of all MB QUART amplifiers. [. . . ] If the amplifier seems fine with RCA cables plugged in, connect the speakers, one at a time, and if one of the speakers or its wiring is faulty, it will activate the diagnostic system. Amplifier heatsink overheating: The amplifiers will shut down when the heatsink temperature reaches 80 degrees centigrade, and turn back on once the unit has cooled down below that point. causes of overheating: 1 - Inadequate cooling - relocate or remount to provide better natural airflow over the fins. 2 - Driving high power levels into low impedances - back off on the volume control, and/or make sure you are not loading the amplifier with less than the recommended loudspeaker impedance. [. . . ]

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