“I just bought this receiver today after taking back the Denon S650H which had an advertised 150W X 5 (BS). I have four Klipsch F1 towers rated at 150W each, and they sucked it dry. Will the 105W per channel with the 3700 still not be enough?”
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The Denon S650H isn't rated 150x5, it's rated 75x2. Denon doesn't rate for 5 channels in this series, but it's typically 2/3's of the two channel output or about 50 watts per channel. So yes, this isn't a good match if you want to fully drive speakers rated for 150watts. But it gets a little murkier when you look into it a little more deeply. The speakers can handle more power for brief periods of time, and the amplifier can put out more power for brief periods of time (like a drumbeat in a song or a "bang" in a movie). By and large, especially if you sometimes listen to things with sustained loud sounds (some rock music, some action movies) but the "peaks" aren't handled well by either the amplifier or the speaker as you get near the rated max. The 150w you saw on the Denon was for a rather BS situation where a single channel is being driven by a 1khz tone into a 6 ohm speaker. But your klipsh speakers are 8 ohm and even in that circumstance it's rated at 100w (a 1khz tone into each of 2 channels). But no one listens to a single tone! At a range of frequencies (20hz to 20khz) it's rated at 75w for 2 channels and if you hook up more speakers for a home theater you'll get about 50w per channel. The 3700h is rated for 105w per channel into 8 ohms so you'll get about 70w per channel if you're listening to content that's driving front and surround channels. The 8500XA is rated at 150w per channel into 8 ohms 20hz-20khz so you'll get at least 100w per channel into 5 speakers - probably somewhat more since the 8500XA is set up to drive 13 channels. You'd probably get closer to 125 if you only have 5 hooked up. Denon may not be the best brand for your speakers. It's overbuilt, in the sense that Denon products are designed to be able to handle "difficult" (4 ohm) speakers without burning out. Your klipsh speakers aren't as fussy so you can spend your money on watts rather than a beefy power supply. The Yamaha A6A is rated at the same 150w per channel (2x150 20hz-20khz) although it has 9 amplifiers vs. the 13 in the Denon. But your front 2 Klipsh speakers will see the same level of power and the Yamaha is half the price of the Denon. I have 4ohm (Polk) speakers and I went through 2 Yamaha and 1 Onkyo receiver before getting a Denon (that was rated at considerably lower power than one of the Yamahas and the Onkyo). I grew tired of burning out receivers after a year or two and decided to pay for the more expensive Denon watts.
Sorry, there was a problem. Please try again later.I strongly suggest you run an external amp if you expect that kind of dynamics and volume. The difference can be staggering between an AVR internal and a dedicated external amp. You will never get the advertised wattage in an AVR, especially multi-channel. A suggestion would be to get a 3 channel external to power your front stage(L,C,R) and let the receiver deal with your surrounds or go all in and get a 7 channel external and set the AVR to preamp and it will disengage the internal amp all together for the purest sound/processing. Though since you’re running Klipsch’s that have high sensitivity you may not see that large of a contrast in performance. Either way dedicated external power will destroy internal all day long.
Sorry, there was a problem. Please try again later.You dont need to give your speakers the max RMS. They will be fine at 105W per channel. Do some research.
Sorry, there was a problem. Please try again later.Meant to say four Klipsch F3 towers rated at 150W each. And thanks for nothing Shorty. I'll play my speakers to the max if I so desire, and I want an amp that will provide enough power to run them efficiently. My research was with a previously failed Denon receiver not delivering what it was advertised to be.
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