Tag Archives: corrosive glue

Amplifiers, Restoration

Luxman M-4000A Amplifier Repair & Restoration

10 Comments

A customer recently brought in his gorgeous matching Luxman M-4000A power amplifier and C-5000A preamplifier for restoration. This article looks at the restoration of this beautiful M-4000A.

Apparently the legendary Tim De Paravicini designed the original M-4000. The improved and even rarer Luxman M-4000A probably also came from De Paravicini’s hand, but nobody seems to know for sure.… Read more

Amplifiers, Rants, Repair

The Sansui Corrosive Glue Problem

7 Comments

The infamous Sansui corrosive glue problem is one that affects many vintage hi-fi amplifiers and other equipment. Resolving issues caused by this glue is time-consuming, but essential.

You maybe familiar with the scenario – over time, your favourite Sansui (or other) amplifier starts to develop faults. Maybe it won’t come out of protection, or maybe a channel becomes intermittent.… Read more