The Audio Research SP6 is an exceptionally fine sounding tube preamplifier.
This SP6 was previously owned by a technician on a "higher plane". The tubes installed are the finest including Bugle Boys. The gain potentiometer is a $200 part sourced out of England. The mode pot (which no one uses) had been disabled to eliminate any inherent distortion. Other superlative components were upgraded within.
As you will see in the pics, the "cosmetic condition" is near flawless.
It is from a smoke free and pet free environment and used by a mature enthusiast.
It will be professionally packaged with select dunnage and a double walled corrugated fibreboard corrugated case.