DC offset at output

classicman · 1378

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Offline classicman

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on: November 26, 2018, 01:33:24 AM
Hi everybody, today I was running some tests on my Crack before plugging in my new pair of headphones, and I have found a problem: there's a 10-11 mV DC offset at the output of both channels. The voltage was measured after the output capacitor, using both an oscilloscope and a multimeter. A Sennheiser HD598 (output impendance 50 ohm) was connected during the test.
The DC voltage measured is stable (not a transient) and doesn't change regardless of input (or no input at all).


Is this an acceptable value or do I have a problem?
Thanks.
« Last Edit: November 26, 2018, 01:55:54 AM by classicman »



Offline Paul Birkeland

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Reply #1 on: November 26, 2018, 06:26:31 AM
0.010V to 0.011V  at the output jack doesn't indicate an issue. 

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline classicman

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Reply #2 on: November 26, 2018, 06:28:33 AM
0.010V to 0.011V  at the output jack doesn't indicate an issue.

Perfect. Thank you.