I said.If you read the first post it asks a question. Am i right in assuming you are you somehow totally OK, with all passive preamps not being able to zero volume and offering one input ?
"Why did you start this thread, if you know all the answers"
Over and out!
The discussion points, that its not too hard to do, even with LDR types.
I really hope not, rather hopefully your response would be on reflection, that would be much better for all passive preamps to have silence at zero volume, and offer more than one stereo input.
The question is there for all to respond to, perhaps we can see from others contributing, that not being able to zero volume and only provide one input is really undesirable, in fact dreadful, now knowing its easy to correct.
It remains for those marketing passive preamps, that it is quite easy to turn around, to be a success story instead, and that is what the thread is all about.... improving what is out there.