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Old 07-12-2011, 06:13 PM
Great70 Great70 is offline
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Join Date: Jul 2011
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LuXman L 480


I got a Luxman L 480 amplifier. Just collected from secondhand shop. It work as Power amp when I insert Audio to main amp in from the back pannel. Also work as preamp when I feed aux in and I can receive the output from pre out. In normal operation do I need to put a jumper pre out to main in ? If any body knows answer I appreciate, Or any service manual for this.
Actually I made a connection between them for one channel simply burnt the power transistor.
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Old 07-12-2011, 09:16 PM
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ryuuoh ryuuoh is offline
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Your unit should have jumpers in the back, but it's not unusual for those to get lost.
Most people just use a short RCA cable to connect the pre and main if those jumpers are missing.
Are you certain you damaged it?
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Old 07-13-2011, 01:18 PM
Ruxman Ruxman is offline
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Did you connect the main in to the pre out?

If you connect main in to main in, or pre out to pre out, you will destroy the amp.
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