In the last few months I have been asked to repair and upgrade amplifiers from other manufacturers. These have included Perreaux, A7R Cambridge and Yamaha. In all cases the improvements were dramatic! The owners of these amplifiers without exception commented on the very significant enhancement of their listening pleasure.
This opens up many possibilities or improving the performance of non McLaren amplifiers and has proven the the techniques I have developed are versatile and can be applied to almost all existing amplifiers.