Meremoth
100+ Head-Fier
- Joined
- Mar 20, 2013
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- 15
Oooo, sweet thread.
Could you add Audio Technica's ATH-AD900X?
Thanks.
Could you add Audio Technica's ATH-AD900X?
Thanks.
Couple quick thoughts
1) First and foremost, thank you for this reference!
This is extremely helpful (see below) and *should* be linked to very very often in the future.
2) If you are from an english-speaking country:
I spent 20 minutes trying to figure out how the heck the HE-6s needed 3 kW to reach 110 dB!!!Code:sed '/[0-9]\,/s/\,/./g'
I knew they were inefficient, but I didn't think they were that bad!
6) I think 110 dB is a little bit high for a reference loudness, especially since 90dB is the typical threshold for hearing damage. Because this data is especially useful for guiding newer enthusiast in their search for headphone nirvana, I think it's a little dangerous to give the impression that they should be listening at 110dB SPL with any regularity. Perhaps you could put a disclaimer in the original post warning against prolonged exposure to >= 110 dB. Of course I'm just picking nits here.
why? I never heard of this ideal placement for a volume pot
The gain structure of the preamp is correct when the pot spends the vast majority of its time between the 10 and 2 o'clock positions. If the volume is often below or above this range, consider changing the preamp gain.
Oooo, sweet thread.
Could you add Audio Technica's ATH-AD900X?
Thanks.
There's something wrong there, surely the PX200s don't pull double the current of the K701s...
All analog pots suffer from some degree of channel imbalance.
Especially at low volume the imbalance is bigger, gradually decreasing with increasing volume. At 10 o'clock, if you're unlucky, you can still have 1 dB imbalance but in that case I'd consider switching the pot.
Rod Elliot writes:
If the volume control is not an analog pot and does not suffer from channel imbalance it still makes sense to have such a broad usable volume control range, because higher gain will just add more noise, distortion. The volume control will also become touchy, so turning it a bit too far in the wrong direction could hurt your hearing.
Stepped attenuators, for example, have fixed steps which you want to be able to use. Too high gain and you'll probably be forced to use some close to zero positions which are far apart in terms of step size.
With digital attenuation you will reduce the effective number of bits quite a bit. Again higher noise etc.
I know that many headphone amps have way too high gain. That's one reason I started this thread in the first place.
You're dating yourself
Why not? I'm a cheap date and I put out. :veryevil:
se
Why not? I'm a cheap date and I put out.
se
If you don't mind me asking, how was the gain calculated? It seems to be 104 - S@1V.