A very nice amplifier, it needed a total refurbishment.

Nothing is wrong with the sound of this amp, despite the outdated technology used, employing transformers.

Maybe because of this, it did not sound unpleasant when reaching its limits, compared to newer low wattage solid state designs, although I did have no comparison for this claim.

picture made during the update

Go to my 2021 British addition, the nice Armstrong 521...