Was wondering if there was any information on what the frequency response is for the 7700 above 20kHz? Say, up to 45kHz or 50kHz? TIA.

You seem particularly interested in frequency response in the ultrasonic range this evening. That's not a range that is typically covered in specs. You might want to give Outlaw a call to find out of they've done much testing in that range. Are you planning to drive a super tweeter of some sort?

Yeah, posted in multiple categories since each of the amps is different. And yeah, hoping that sometime soon I can get some speakers that go that high. Thanks.

To what end? Trying to annoy the neighbor's dog????

Well, SACD have response up to 100khz. The only argument I can see for that being of any use is if the 100khz sound wave interferes in some perceivable way with audible sound waves...

That would be pretty easy to test. Just make a short file with no information above 20khz, and then make one with tons, see if you can tell any difference. My headphones go up to 120khz or something silly like that....

I have actually tested my hearing (which by most accounts is supposed to be "good") and I can't hear squat above about 16khz. I mean zero, even at high power levels. And I'm still in my 30's. 8-)

Those high harmonics might look intriguing on paper, but I suspect they have little effect (if any) on real world performance when you consider the limitations of the human ear.

Cheers,

Ritz: I totally agree with you.

Being able to "hear" something at a frequency is not the same as being able to "feel" something. The required SPL curve is low in our regular hearing range, and goes higher when you go outside that range. However, even if you can't hear something, say 100dB of 5Hz, you can still feel it. Of course, hearing tests would not be subjecting you to 100dB of anything.

Feeling low frequency is a reasonable assertion - hard to deny the sensation of shaking floor joists that a sub can generate even after it dips below 20Hz. Feeling high frequencies is a bit hazier an issue, at least for me.

Not only hazy. It's pure fantasy. Humans just don't have the sensory capacity to detect a 20khz pulse if they've gotten much past the adolescent years when many of us are still lucky enough to be able to hear tones that high. Next, Joshua will be telling us he sees dead people. 8-)

Cheers,