Luxman LV-104U / LV-105U / LV-107U

by James Leahy

How many Luxman LV Series amplifiers are there out there in Australia?

I sure don't know the answer to that question but there are a lot.

Hardly a month goes by without someone asking me to repair one.

They can be brought up to A1 performance levels with a freshen up and a general service.

The unit featured in the pictures below had a defective output fault in the right channel.

The 6CG7 / 6QF7 vacuum tubes in the gain stage tested fine so they were left as they were.

A general clean-up of the RCA sockets will provide trouble free electrical contact for many years to come.

On this unit the bias adjust and servo controller boards need a once over to refresh all tracks and contacts.

A very nice sounding unit when fully rebuilt.

The output was replaced on both channels with EXICON MOSFETs as an additional up-grade.

If you are going to do a rebuild, insist on doing it right and replace all the output modules with matched and graded components.