Curio
You will have to borrow a pair of Atma-Sphere amplifiers to try with the Quads.
Natural sounding vocals are very high on my list.
With good recordings the illusion of a physical presence in the room is startling with the Atma Speres amps.
I used the Atma Sphere M60s with a refurbished pair of Quad 63s for a few years.
Tenor OTL amps I have also heard on the Quad 57s, just astounding.
Years ago the late Harvey Rosenburg bought the rights to the Futterman Otl amplfiers, re-worked the amp and used them exclusively on the Quads.
You will have to borrow a pair of Atma-Sphere amplifiers to try with the Quads.
Natural sounding vocals are very high on my list.
With good recordings the illusion of a physical presence in the room is startling with the Atma Speres amps.
I used the Atma Sphere M60s with a refurbished pair of Quad 63s for a few years.
Tenor OTL amps I have also heard on the Quad 57s, just astounding.
Years ago the late Harvey Rosenburg bought the rights to the Futterman Otl amplfiers, re-worked the amp and used them exclusively on the Quads.