odigg
500+ Head-Fier
- Joined
- Apr 1, 2008
- Posts
- 868
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- 26
Quote:
With high impedance headphones (250 ohms+) I'm indifferent to plugging it into pro audio gear or a special headphone amp. Speaker amps are a different story because some of them have headphone output impedance of higher than 150 ohms!
With low impedance headphones I'm slightly more finicky because I'd like the output jack to have an impedance near 0. No fancy amp is needed for this. Even a CMOY will do. However, I typically plug 25 ohm Denons into my Nokia 5800. There is a slight (I believe it is less than 1db) bass hump at ~50 hz without any rolloff. However, during a volume matched comparison with "better" gear, I concluded the bass hump was practically irrelevant.
Quote:
It is a pain in the butt to do a proper blind test. I've built myself a switching box using a toggle switch. It's such a simple design that I doubt impedance problems could be an issue. Of course I suppose somebody could point out that I'm not using expensive cable and claim that is affecting my results.
Originally Posted by JaZZ /img/forum/go_quote.gif Does that mean the $1000-4000 amps sound the same as Behringer, Presonus, SM Pro, Samson & the like? . |
With high impedance headphones (250 ohms+) I'm indifferent to plugging it into pro audio gear or a special headphone amp. Speaker amps are a different story because some of them have headphone output impedance of higher than 150 ohms!
With low impedance headphones I'm slightly more finicky because I'd like the output jack to have an impedance near 0. No fancy amp is needed for this. Even a CMOY will do. However, I typically plug 25 ohm Denons into my Nokia 5800. There is a slight (I believe it is less than 1db) bass hump at ~50 hz without any rolloff. However, during a volume matched comparison with "better" gear, I concluded the bass hump was practically irrelevant.
Quote:
Originally Posted by ph0rk /img/forum/go_quote.gif It is damn hard to put together even a single blind test, though. |
It is a pain in the butt to do a proper blind test. I've built myself a switching box using a toggle switch. It's such a simple design that I doubt impedance problems could be an issue. Of course I suppose somebody could point out that I'm not using expensive cable and claim that is affecting my results.