I have a couple of 1U Quad Att and they’re great.
I’m somewhat perplexed why this doesn’t come up more often given the mix of CV inputs that sometimes want bipolar or sometimes want unipolar positive (in addition to applications where you want to use gain and bias as ‘range’ and ‘transpose’)
I really have a deficit of channels that provide both attenuation and bias. I can get two channels of attenuation and bias out of a quad att, but it would really be great to have a compact four-channel unit.
Kind of like a Cwejman ATT-4 but with a bipolar constant generator instead of a fixed bias shift and not $4000 USD.
My humbly submitted mock-up: