Stepped Attenuator   –   check
1/4″ output jack   –   check
RCA Inputs   –   check

Since a picture is worth a thousand words, here are a few pictures to get started.

2013-03-31 09.35

Limited Edition 2013

2013-03-31 09.33

Uses existing PCB, side extrusions, top, bottom, feet and hardware.

2013-03-31 09.38

1/4″ output jack and RCA inputs.

2013-03-31 09.39

I’m very happy with the final product, and honestly the sound quality using these larger jacks and stepped attenuation is much better than I had expected!

As a prototype I have the parts to assemble three Amp1S’s (I will likely keep one) if there is enough interest I will put this into production as a real product.