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Author Topic: Problems with beta bass  (Read 2582 times)

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Offline OskarB

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Problems with beta bass
« on: March 21, 2015, 02:55:33 am »
Hi, i have a Sunn Beta Bass, and it won't really work. First of all i have to crank the gain really high for it to sound at all. So it sounds but it sounds horrible, it cuts in and out and sound really crappy.
I changed all the capacitors and the output transistors, so thats not the problem. Do anyone know what the problem may be?
« Last Edit: March 21, 2015, 03:23:56 am by OskarB »
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Offline patlaw

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Re: Problems with beta bass
« Reply #1 on: March 21, 2015, 10:04:40 am »
Do you have an oscilloscope?
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Offline OskarB

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Re: Problems with beta bass
« Reply #2 on: March 21, 2015, 01:30:18 pm »
Yes i have an oscilloscope! But it seems like the problem is the power amp, i tested just the power amp and it needs a quite strong signal in, and it sounds distorded. Could it be a bad transistor? Anyone heard of something like this before?
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Offline loudthud

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Re: Problems with beta bass
« Reply #3 on: March 21, 2015, 03:49:19 pm »
Do the channel lights work properly? They should light up when you plug into each channel and both light up when you plug into the Both input.

Check the +/- 15V regulators on the the power amp board.
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Offline OskarB

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Re: Problems with beta bass
« Reply #4 on: March 22, 2015, 09:39:38 am »
Yes, the lights work as they should!
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