User manual MB QUART RSC 216 INSTALLATION

[. . . ] And Maxxsonics Europe GmbH warrants to the original consumer purchaser the amplifier to be free from defects in material and workmanship for one (1) year from date of purchase. this product meets the current EU minimum warranty requirements , if purchased in countries of the EU. To ensure your warranty policy keep your original receipt proofing the date of purchase. All other part and accessories of the system are warrantied to be free from defects in material and workmanship for one (1) year from date of purchase. [. . . ] INPUT MODE slide switch: - In the CH2 position, ALL five amplifier inputs are selected from the CH1/CH2 RCA jacks. channel 5 receives a mono mixed signal. - In the 4CH position, channel pair 1&2 receive input signal from RCA jacks CH1 and CH2, and channel pair 3&4 receive input signal from RCA jacks CH3 and CH4. A mono mixed signal from these four RCA jacks are also fed to channel 5. - When 5CH DISCRETE is selected, each channel receives an input signal from its respective input RCA jack. Channel 5 has two jacks on its LINE INPUT, which are summed together. : In this mode, the HIGH PASS and a LOW PASS filter, both fully variable from 50 Hz to 4 KHz, are selected to form a BANDPASS crossover filter. - HP: Selects the HIGH PASS filter , variable from 50 Hz to 4 KHz. 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. - A MONO signal source is required to bridge channel pair 3/4, such as would be available from the mono sub bass output of an active crossover, whether standalone, 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. Level control checklist: Refer to the section "Setting up systems after installation for best performance" Minimum final loudspeaker impedances: - 2 ohm per channel in stereo mode. 2 way active, or bi-amplified system with mono bass English 9 This application shows how easily a 2 way active system can be implemented using a Premium 4 channel amplifier. channels 1 and 2 will be used for highs , and channels 3 and 4 for mono bass. Interconnect cable checklist: We need to feed the same signal to both sets of channels, so must use 2 Y-adapters, one to feed the LEFT signal to channels 1 and 3, and the right signal to channels 2 and 4, as shown. mono bass woofer wiring: Connect the mono speaker positive terminal to the LEFT + , and its negative terminal to RIGHT -. Switch setting checklist: - 1/2CH X-OVER: HI - 3/4CH X-OVER: LP/BP Crossover frequency control checklist: Channels 1/2: Channels 3/4: - HI PASS: 100 Hz - HI PASS (subsonic): 20 Hz - LOW PASS: N/A - LOW PASS: 100 Hz Please note that these frequency points are suggestions only. the LOW PASS filter on channel 5 will be in tandem with that of the source. [. . . ] Should the amplifier go into diagnostic mode, simply disconnect all RCA and speaker leads, while keeping +12 volt, power ground and remote leads connected. Now turn the amplifier back on, and if the diagnostic LED lights, the amplifier has an internal fault. If not, plug the RCA cables back, and reset the amplifier. If it goes into diagnostic now, the fault lies in the input, either with bad cables or source unit. [. . . ]