Dual Pass Thread

Musician, historian, and DIY addict
Joined 2006
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What could possibly be better than a Pass component?
Well, of course, that would be two (or more) Pass components!
This thread is devoted to all builds and system designs that make use of multiple Pass components. Am going to kick it off with a Dual Preamp just completed that houses the Korg/Pass B1 in the same chassis as the WB 2018. This allows you to shift directly between tube and SS pres. Also, as a way of accessing my Pass amps (along with 2 retail ones) the design is five in and five out (see the front panel below). Five source media directed to any of five amp sets.
Wonder what a tube pre sounds like on a M2x? No problem...just select them. And the WB 2018 with a 300B tube amp? Same thing – dial them up.
This is the 3rd Korg B1 I have built but is the first WB2018. From the moment the WB 2018 was fired up, I was entranced by the sound – very clear, precise, and dynamic. No noise anywhere and the paths are discrete for each preamp.
Will be looking forward to shifting back and forth between these pres in the next week and determining their ideal selection – what incoming sources they prefer and what are their subtle characteristics.
There was a certain amount of complexity to this build and must thank Gareth at AudioSy.net for his PSU boards and the occasional answer. The wiring is dense and a larger chassis would be an improvement (this one is 330 x 230).
If there is any interest in this multiple Pass philosophy, will share two other recent builds that use a dual theme. Let me know.
 

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