Hi to all!
My Mastersound 845 compact is making funny noise when on.
Noise sound:
-fast beating, like heart beating but at 4/5 beats a second.
-low level- probably 50-60db not more
-Comes from both channel
What is it and what can I do about it?
Thanks!!!
My Mastersound 845 compact is making funny noise when on.
Noise sound:
-fast beating, like heart beating but at 4/5 beats a second.
-low level- probably 50-60db not more
-Comes from both channel
What is it and what can I do about it?
Thanks!!!
IF it has feedback, swap the leads from the OPT to the feedback and speaker.
If no feedback, then look to the power supply for issues.
Audioasylum posts indicate the manufacturer will send you a schematic. I would start there.
If no feedback, then look to the power supply for issues.
Audioasylum posts indicate the manufacturer will send you a schematic. I would start there.
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Did the amp always do that? If not, then maybe a power supply electrolytic needs replacing, especially one that bypasses the supply for the input stage of the amplifier.
The amp was always quiet. This motorboating noise started about two days ago, so it must be as you wrote a bad capacitor.
I don't trust myself to repair this issue so I'll try to contact a professional for the matter. I have just discovered that there is a tube amp manufacturer in my city (Freiburg) called Wall-Audio. Maybe they can help me further.
Anyway thanks a lot for your comments 🙏🏼
I don't trust myself to repair this issue so I'll try to contact a professional for the matter. I have just discovered that there is a tube amp manufacturer in my city (Freiburg) called Wall-Audio. Maybe they can help me further.
Anyway thanks a lot for your comments 🙏🏼