Have you checked to see if there are sources of noise like a worn refrigerator compressor motor or dimmers coincident with the buzzing? What about trying a direct run to the house breaker panel?
Tube amp buzz (amp, not speakers)
Hello -
Almarro a318b makes buzzing sound at random: sometimes it does, sometimes it doesn't, completely unpredictable. The buzz comes out of the amp itself, like a transformer buzz; the sound out of speakers is completely clean.
I'll appreciate any ideas - what causes it, what to do?
Almarro a318b makes buzzing sound at random: sometimes it does, sometimes it doesn't, completely unpredictable. The buzz comes out of the amp itself, like a transformer buzz; the sound out of speakers is completely clean.
I'll appreciate any ideas - what causes it, what to do?
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- 13 posts total
Boriso, Holographic IMO means spatial characteristics where the instruments and voices are clearly delineated. If you go Emotiva you will regret it if you value those traits I described. I found the Almarro easy to tube roll by swapping out the 6SN7; the 6SL7 not as much. It was a fun amp but the biasing was tedious and somewhat dangerous. regards,Larry |
Descent sized toroidal power transformers are usually the ones that buzz, vibrate, from DC offset on the AC mains. As a rule EI transformers do not buzz, vibrate, because of DC on the mains. I think the power transformer in the OP’s amp is a bobbin transformer. I couldn’t find any info on how they react to DC offset on the mains. . |
Thank you all so much. I don't know the first thing about electronics, so it seems like I have two options: getting an Emotiva CMX-2 or taking it to a technician, at least for a comparable cost if not more. What would your inclination be? This is another one that is known to eliminate DC offset transformer hum https://avahifi.com/products/humdinger-dc-line-blocker |
- 13 posts total