I'm in agreement with mitch2 - the Khozmo represents exceptional dynamic transparency, and an attractive price. I use a stereo version, with three inputs and two outputs, Vishay Nude Z-Foils and Takman REX shunts (carbon vs metal film of the REY). I have two Khozmos, the older one using a stepped attenuator (with Takman REY and the same Vishays), and the newer unit which utilizes relays for volume control. Both are superb, but I think the relay based unit is the more transparent of the two. My previous "volume knob" was a set of Intact Audio/Dave Slagle autoformers, via a Shallco stepped selector and a Bent remote control kit. An excellent unit, which the Khozmos finally displaced.
Are there passive attenuators that don't zero volume and only offer one input ?
I am not sure how many people would like those features, but its worth asking in case someone would try to sell such a thing.
Which is to say it is essential I should think to be able to zero volume, and have more than one input, do you agree ?
Which is to say it is essential I should think to be able to zero volume, and have more than one input, do you agree ?