Dreadhead
500+ Head-Fier
- Joined
- Aug 29, 2007
- Posts
- 529
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- 11
Quote:
I figured as much. Thank you for the quick and informative reply.
I tried this with the GS-X in SE mode and actually saw a tiny drop (less 0.05 db or even smaller) in the high frequencies (beyond 18kHz) with the GS-X vs straight out of the headphone port of the DAC1 but there are other things at play that make that a flawed measurement (ie the load impedance, blanced input to the GS-X driving the SS, and using the headphone port). This was all done using RightMark Audio Analyzer. The M-Audio Transit (USB based) is a 24/96 system and was stone flat up to 22 kHz in loop back (can only run 96 as input or output so when not using the DAC1 as source I was limited to 24/44.1). I got the idea from your website actually and It was not an all out assault on knowledge but pretty much playing around
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I figured it was worth a try but I won't bother. I'm pretty sure I can't hear 2.5 mHz
Originally Posted by amb /img/forum/go_quote.gif It will be a futile exercise trying to measure frequency response with any computer sound card, because both amps will exhibit ruler-flat response, and they extend far below and above that of the sound card itself. The only feasible way to measure this would be with a good function generator and scope (e.g., β22's frequency response is 0Hz - 2.5MHz +0, -3dB). |
I figured as much. Thank you for the quick and informative reply.
I tried this with the GS-X in SE mode and actually saw a tiny drop (less 0.05 db or even smaller) in the high frequencies (beyond 18kHz) with the GS-X vs straight out of the headphone port of the DAC1 but there are other things at play that make that a flawed measurement (ie the load impedance, blanced input to the GS-X driving the SS, and using the headphone port). This was all done using RightMark Audio Analyzer. The M-Audio Transit (USB based) is a 24/96 system and was stone flat up to 22 kHz in loop back (can only run 96 as input or output so when not using the DAC1 as source I was limited to 24/44.1). I got the idea from your website actually and It was not an all out assault on knowledge but pretty much playing around
I figured it was worth a try but I won't bother. I'm pretty sure I can't hear 2.5 mHz