Question about my new build- hum on right at max volume- [resolved]

Nathan · 1287

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Offline Nathan

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When I built my crack I recalled reading that noise in the circuit is inevitable but ok as long as it's in an area of rotation of the volume pot which is louder than any sane listening level.

Ok, I'll assume it's the same on the SEX. For curiosity I turned up the volume to max with no music playing. A little hum, but more noticeable on the right channel.

Since this is inaudible at normal listening volumes, is this anything that should cause me to recheck my work?

BTW- the SEX sounds great and it's only got a few hours on it

Thanks all!
« Last Edit: November 02, 2015, 02:22:59 PM by Caucasian Blackplate »

Crack/Speedball, SEX 2.1/C4S, Bryston BHA-1

Sennheiser HD600/Cardas cable, Beyerdynamic T1 2nd Gen, Hifimam HE560/Hifiman balanced cable


Offline Paul Birkeland

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Reply #1 on: November 01, 2015, 01:05:18 PM
Ok, I'll assume it's the same on the SEX. For curiosity I turned up the volume to max with no music playing. A little hum, but more noticeable on the right channel.
If you don't have the inputs shorted when you're doing this, no conclusions can really be drawn.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Nathan

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Reply #2 on: November 02, 2015, 01:18:57 PM
No hum with shorted inputs. Problem is elsewhere! Thanks-

Crack/Speedball, SEX 2.1/C4S, Bryston BHA-1

Sennheiser HD600/Cardas cable, Beyerdynamic T1 2nd Gen, Hifimam HE560/Hifiman balanced cable