because fool i mentioned earlier it was a sine wave generator, you need to pay attention more.
sensitive in the frequency range, the drivers had a claimed15 - 42khz freq, response.
first off the dimming is not that extreme, they very slightly dim when the volume is at -15 on kick-drum kicks
secondly i have the receiver hooked into a dedicated outlet capable of being under a 2000w load.
You need to do a few things before you get your answer.
1) Stop calling people fool and ***.
2) Understand that humans DON'T hear up to 30KHz and very few experience any sensation up to that frequency, let alone actually what is called 'hearing'. The most sensitive range is between 800Hz and 6KHz and sensitivity drops off rapidly below and above that. Audiologists don't even bother to test past 8KHz unless it's just to find the absolute limits because it's not needed for speech intelligibility and that's their main concern. There's no musical information at 30K, only harmonics and since people can't hear that high, there's nothing put there, intentionally. Digital recordings CAN'T produce source material above 20KHz. Period. If you hear anything when playing a CD, DVD or MP3 that's in that range, it's distortion or alias tones from the digital filters.
3) Headphones are often rated for frequencies they can't produce well. If the frequency response showed something like "25Hz-42KHZ" but didn't include ±3dB or some other number, it's a useless spec. It may produce 42KHz but it doesn't matter if that frequency is -20dB below flat response. You even used 'claimed' in your last post- claiming something and actually doing it are two completely different things.
4) Learn that a dedicated outlet that's on a circuit used by other devices doesn't mean the circuit isn't close to its maximum load. If the outlet was installed specifically for the stereo and there's nothing else on the circuit but the lights still dim, you have electrical problems in your house. If this is happening, it means the current draw is causing voltage drop at the breaker panel. An outlet may be able to handle 2KW but that has absolutely nothing to do with what the circuit can handle.
5) Sine wave generators aren't equal. How do you know that yours isn't the cause of a sub-harmonic? How do you know that its output level isn't too high and causing this sub-harmonic? If you haven't used a frequency analyzer to determine what frequencies are coming out of the headphones, there's no way to verify what you're hearing.
You posted "i honestly am not sure what this means but the specs for it say it has "7 discrete amplifiers" in it." That just means there's one amplifier for each channel. Gene mentioned that it may have discreet output devices, but there's a difference between that and saying that it has discreet amplifiers. If you look inside and see rows of smaller transistors instead of large rectangular devices with a long row of pins, you have discreet output devices.
If you can actually hear 30KHz, you are unique. Have your hearing tested in a scientifically legitimate way and you may become famous. Otherwise, it doesn't really matter.
