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Double amping: Is it dangerous? - Page 2

post #16 of 20
10/30/12 at 6:54am
Thread Starter 
Quote:
Originally Posted by kazaakas View Post

Such a shame asus doesn't let you use the RCA outputs for headphone surround.

 

This was the main reason I went for the Titanium HD instead

I would have probably went for the HD if I knew I was just going to get an external amp anyways.

 

HP out to RCA seems to work fine for me though now that I've got the ground loop fixed; I can't really tell any difference in quality. But after hearing Creative has better gaming support and all that, kinda wish I would have went that route.

 

I still use it on very high gain with 100% volume even though the buzzing is gone. It seems to have the same volume as RCA to RCA that way, and to me when I have to turn up the volume knob less to get a higher volume it makes it seem like quality is better(which I'm sure is purely a psychological thing).

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post #17 of 20
10/30/12 at 1:47pm
Quote:
Originally Posted by chewy4 View Post

I would have probably went for the HD if I knew I was just going to get an external amp anyways.

 

HP out to RCA seems to work fine for me though now that I've got the ground loop fixed; I can't really tell any difference in quality. But after hearing Creative has better gaming support and all that, kinda wish I would have went that route.

 

I still use it on very high gain with 100% volume even though the buzzing is gone. It seems to have the same volume as RCA to RCA that way, and to me when I have to turn up the volume knob less to get a higher volume it makes it seem like quality is better(which I'm sure is purely a psychological thing).

Yeah before ordering the HD I was already planning on getting an external amp too. So the STX had very little added value already, the way I saw it: It's just a source component of the same value and price with a bit of a brighter signature, without the gaming features. So I went creative again :)

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post #18 of 20
10/30/12 at 3:33pm
Quote:
Originally Posted by kazaakas View Post

So the STX had very little added value already, the way I saw it: It's just a source component of the same value and price with a bit of a brighter signature

 

It does not have a bright signature (well, it is relative, maybe the Titanium HD has rolled off treble, I do not know much about it), at least according to any objective measurements. If it does really sound brighter than neutral when using the line output or headphones that are not audibly affected by a 10 Ω output impedance, even in a blind test, it would be interesting to find out why.

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post #19 of 20
10/30/12 at 3:50pm
Thread Starter 

Yeah it comes with a book of measurements, and according to mine it is completely and utterly flat from line out all the way from 10Hz to just under 10kHz. Which at that point it appears to start exponentially rolling off; at 20kHz it is about a fifth of a dBr down.

 

Doesn't come with measurements for headphone out though, but it isn't audibly different for me.

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post #20 of 20
10/31/12 at 5:15am
Quote:
Originally Posted by chewy4 View Post
Doesn't come with measurements for headphone out though, but it isn't audibly different for me.

 

The headphone output is actually even flatter by a few hundredths of a dB (it is fully DC coupled, and lacks some RF lowpass filtering that is on the line output), but this is an insignificant difference. However, its high output impedance can indeed affect the frequency response when driving a headphone load. The Titanium HD has even higher output impedance, which boosts the bass and lower mids more on typical low impedance dynamic headphones; perhaps that is why it is said by some to have a "warmer" signature.

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