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Depends if you have a preference for listening to sine waves at maximum power into resistive loads which turns out to be many times more demanding on the amp section than real world music and real loudspeaker loads driven as people use them in the home. I agree with Gene, where it's made is...

Sure, except damping factor is one of the most over-hyped concepts in the history of audio. If you've read the Audioholics report on damping factor you'll note that anything above a DF of 50 is irrelevant. Even if the damping factor of the amp was 5000, the resistance of the voice-coil, and...

If the amp sounded 'warm' or 'lean' it would be reflected by the frequency response. Most solid state amplifiers measure flat and more importantly, have universally low output impedances. Now tube/valve and switch-mode designs can be exceptions to the rule, but don't always have to be, but with...

Yeah, but it doesn't matter because Yamaha amplifiers sound bright! :D At least that's what many audiophiles think Yamaha amplifiers sound like, for some really strange reason. Why do you think that is?

So you didn't level-match. An SPL meter wouldn't do the job either - we are talking about electrical measurements here, not acoustic measurements, which are simply too coarse to be of any value. You need a multimeter to read the voltages across the speaker terminals to match their levels...

Many people ask if their receivers can power their speakers and the answer to this question, every single time, depends on ... 1) Preference for volume? 2) Speaker efficiency? 3) Room size? 4) Seated distance? 5) Placement of speaker in the room? Can you give us any more information?

LOL.

Time delays are the least of your worries. A possible level mismatch could account for the subjective audible difference you experienced. That alone is enough to invalidate your experience, but there is another possible (and very likely) influence - sighted bias. Controlling neither sighted...

Speakers and amps don't operate in a vacuum; they exist to meet the needs of the listener in a room, and your needs in your room are contingent on a number of factors, like : 1) Your preference for loudness? 2) Your room size? (4m x 4m) 3) Distance from the speaker? 4) Placement of speakers...

Excellent review Gene. I'm very happy to see you included test measurements.

While I don't think there are any reliable tests indicating the inferiority of the AccuEQ system, I do think that the probability is high that the overwhelming lack of filter resolution, the lack of .. well, anything related to EQ on the subwoofer, and the lack of mic positions, gives a...

I see my "reputation status" has taken a nosedive after asking a legitimate question concerning the comparison between Audyssey and MCACC. LOL.

I'm curious what testing methodology you used in order to determine that MCACC beat Audyssey. I'm guessing you did a double blind, back to back comparison. Am I right?

That's my point. None of this is news, so long as you do not exceed the output at 4 ohms, or 3 ohms, or 2 ohms, or 1 ohms. Any AVR can handle a 3 ohm dip at some output level. Of course, it may have troubles at full rated power, depending on the frequency of the dip, and impedance testing is...

Interestingly enough, the new bottom-end Denon X1100 is "operationally stable down to 4 ohms", according to the literature on their website. They are "equipped with low impedance drive capability". :D

Hold on while I look up the word "mellifluous" ... :D

Fair enough.

Next time listen to them with McIntosh 2KW monoblocks. Then you'll see and hear their true potential!

If too much current is drawn, the power supply voltage decreases under load and .... bingo, the power amp is power supply voltage limited.

Well, someone out there gave me a negative reputation point, so I guess I shouldn't continue posting at this point. Oh well. :( Acoustic measurements are not sufficient for level matching. You need to measure the voltage across the speaker terminals. An SPL meter is not capable of this. Other...