Hi Augwest,
Nice looking collection of gear.
Have you tried running your Prima DAC directly into your amps and bypassing your Lightspeed attenuator? Is there really a need for two volumes - the DAC and the LSA?
I used to have the Capitole and Jody at Globe Audio Marketing did his upgrade on it and it sounded better direct to my SET amp than with the highly regarded First Sound preamp. I since sold it due to flaky build quality and now use the LSA and agree with you on its sonic qualities.
By the way, what became of Jody? I liked him and wish him the best after Globe closed.