instead of being founded by an electrical wizard like most brands, cello was founded by a musician. the audio suite preamp above was always my favorite of the line, from the time i saw it decades ago when i could not afford one to now that i can afford one but it has become obsolete. even so, i still love to have one just to touch the volume controls. cello was a respected company; however, their preference and advocacy for equalizers was always against the purist notion of audio and that alone made them seem in “our” eyes less rigorous and purist as the rest. nonetheless, it’s still a beautiful piece of equipment inside and out. not an easy one to find but i found one here and here for 16K (the latter includes the amps). by dd