This is a great piece of kit, a Broughton Audio DI-Hpf. Unfortunately I bought it as part of a short run and it’s now out of production but it’s probably the last piece of kit I’d ever part with. It has variable input impedance, hpf and gain. Plus phase reverse. I’ve never used it straight into a power amp but, in front of a Puma, the amp’s front end never needs adjusting.
If you find one used, bite the man’s arm off!
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