https://usa.denon.com/us/product/hometheater/upgrades/audysseymulteqeditorapp
http://manuals.denon.com/AVRX1300W/NA/EN/GFNFSYwwqdpazi.php
It states right in the manual that the distance can be adjusted for subwoofer 1 and subwoofer 2.
Based on my calculations, 47w (worst case scenario ACD at full blast) should give me 95dB from the front L/R. If you run the calculations based on the 2ch driven, @8 ohms, and @ 4ohms, 5ch driven, and 7ch driven bench results, you come up with around 14.5 amps into both the 5ch and 7ch measurements. Obviously, the 2ch rating is voltage limited whereas the multichannel is current limited. The 2ch 8ohm measurement shows an rms voltage of 28v, which is fairly typical in avr supply rails.
At 95dB, the surrounds combined will require 20w and 2.3 amps, the heights, 70w combined and 4 amps, the L/R, 100w combined and 5 amps, the center, 20w and 1.6 amps, for a total ACD current draw of 12.9 amps, leaving about 1.6 amps of headroom. This is based on completely anechoic sensitivity, and worst case scenario 0dBfs 7ch continuous signal. Obviously, dynamic power ratings are higher, since there is always a bit of reserve current, and current limiting doesn’t take effect instantly. Because of the dynamic nature of multichannel film tracks, I should have absolutely no problem at -10dB from reference, even if I blasted full bandwidth pink noise through all seven channels I’d probably be fine.
95% of the time, my “theoretical” power/spl calculations seem to translate pretty well into the real world when tested, for example, I calculated the NR 656’s voltage/amps/watts based on multichannel bench results and theorized I should be able to achieve 102dB into 2ch at 120 hz, where my speakers dip down to 4 ohms, and 11’ before clipping. Testing that theory, I got 105dB before audible distortion.
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