Trevor Wilson wrote:

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**I did not say that ALL Luxman integrated amps used such a system. Just
their low end ones.



** Luxman were always a prestige brand that did not make low end models.

Simple models like the SQ606 from the late 60s ( single supply, cap coupled) still had Baxandall feedback tone controls.

http://www.hifido.co.jp/photo/10/608/60845/h.jpg

Lux had another brand called L&G aimed at the mass market:

https://i.ebayimg.com/00/s/NzY4WDEwMjQ=/z/VVQAAOSwWTRW1b5q/$_86.JPG

They were kinda colourful, like Sonab.


..... Phil