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junki
327
Apr 1, 2018
This looks interesting to me, but I can't pull the trigger without knowing its output impedance. Anyone got a clue?
junkiYeah, looks like a pain in the butt to find info on output impedance but I might have found it: http://reference-audio-analyzer.pro/en/report/amp/smsl-sap-II.php (orange line on first graph). So 10 ohm output impedance? I've merely heard about some of SMSL's amps having high output impedance, so that might be on the mark.
bhigh
57
Apr 2, 2018
junkiIt uses a TPA6120A2 as the output buffer. This opamp requires a minimum output impedance of 10 ohms to prevent oscillation. The same chip is used in the Fiio E09K, Topping A30, etc.
Wile-E-Coyote
36
Feb 17, 2019
bhighmy unit was fitted with an OPA 2604...quite warm sound...but a bit veiled in the highs, and dynamics was a bit congested. ...so i inserted à Burson V5i dual in the socket and voilà : good dynamics and clear highs without too much sibillance.
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