Pdxwayne
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- Sep 15, 2020
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Before measurements, I sensed bass difference between Topping L30 and SMSL HO200.
L30 seems "cleaner" than HO200 in bass "feels".
After voltage matched, I still feel the same.
Voltage matched done:
*Matched amp's left channel within 0.001V.
*Made sure left and right channel balance of each amp are within 0.001V.
*Made sure each amp is not effected by ground loop and 60hz tone voltage output are stable.
Chain is laptop USB to Topping E30. E30 RCA to amp. Amp to AKG K371.
Song used to compare is this:
I listen to the bass guitar tones starting from 46 seconds of the song. I keep looping back to that point to do listening comparisons.
For my downstairs 2.2 stereo setup, I need to adjust my subs' phase to my speakers to get cleaner bass notes "feels".
Could SMSL HO200 amp has slight phase mismatch between right and left channels in bass freqs, thus it is not as clean sounding as L30?
How do I check for left and right bass notes phase mismatch?
Thanks!
L30 seems "cleaner" than HO200 in bass "feels".
After voltage matched, I still feel the same.
Voltage matched done:
*Matched amp's left channel within 0.001V.
*Made sure left and right channel balance of each amp are within 0.001V.
*Made sure each amp is not effected by ground loop and 60hz tone voltage output are stable.
Chain is laptop USB to Topping E30. E30 RCA to amp. Amp to AKG K371.
Song used to compare is this:
I listen to the bass guitar tones starting from 46 seconds of the song. I keep looping back to that point to do listening comparisons.
For my downstairs 2.2 stereo setup, I need to adjust my subs' phase to my speakers to get cleaner bass notes "feels".
Could SMSL HO200 amp has slight phase mismatch between right and left channels in bass freqs, thus it is not as clean sounding as L30?
How do I check for left and right bass notes phase mismatch?
Thanks!
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