“I have 4 pairs of 8 ohm wired speakers in 4 different rooms that comes into my central TV or audio room. How do I set up the wired speakers on the Denon AVR-S750H?”
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Of this receiver, you would need to refer to the 'Online Manual' for the HEOS Multi-room "Wireless" Speakers Setup. I utilize the S750H for a 7.2 Dolby Atmos setup exclusively.
Sorry, there was a problem. Please try again later.When running multiple speakers, you want to be cautious about presenting too low of an impedance load to the amplifier. The minimum load the amp is rated for is 4 ohms, which would permit only 2 sets of 8 ohm speakers connected to an amplifier terminal in parallel. The problem you have in trying to run 4 pairs of 8 ohm speakers in parallel using the Zone 2 amp for the extension speakers while attempting to have 5.x surround in the main room is that will present a nominal 1 ohm load to the Zone 2 amp. Very few amps are designed to handle such a low load. Another option would be to wire the speakers in a series-parallel arrangement, which could balance the load presented to the amplifier, but that often works well with full range single speakers (not 2 way or 3 way) that have no internal crossovers. This model is designed for a 5.1 /5.2 speaker set up for surround sound in one room and a 2.0 channel speaker set up in Zone 2, which would be another room. It also can be set up for 7.1/7.2 channel surround sound or 5.2.1/5.2.2 object oriented surround such as Dolby Atmos, but Zone 2 is not available in this set up. There is a Full All channel all speaker stereo mode that you could use with 3 pairs or speakers and the center channel all playing the same stereo signal going to all speakers, but you would not have surround sound in the main room as there would only be 2-3 speakers in that room. If you want to buy more equipment for each room, you can use a higher up model with line output for Zone 2, such as the Denon X series or the AVRS9XXH series or higher. You would run a line level signal to the other rooms with another amplifier connected to the speakers or use a Heos or other device to send the signal via wifi to the other amplifiers in the other rooms.
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