We all hear differently.
Merely recounting MY experiences with my Quad setup ( early 70's) driving my MG's. The quads were moved out.. rather early on.
Disapointing as the reason.. memorably so, 40 yrs on.
Few years back a friend was into restoring 303's. Lovely quality work..bit misguided tho imo.. he wanted me to buy one,
tried repeatedly, but all the units he supplied left small impression. As in I didn't want one, even ultimately for free.
Used both a George Wright triode pre and a 10 k pot passive experimentally with them. Small pleasures indeed.
Oddly Same GW pre was awful sounding on my then new F6 amp, whilst the 10 k pot proved an epiphany combination.. and remains so.

Interesting these UK forums.. There seems a lot of love, from imo a selective memory past.

Ie; everybody loves the Look of an MGA, I do too. But own one? Not a hope.