Benchmark DAC1 vs CAL Sigma

Yes,between the transport and DAC.Many years ago(probably around 1993 or 94) my friend and I undertook the ambitious task of running our own A-B tests on a number of transports,DACs and CD players.We used an Audio Alchemy DLC preamp and a digital spl meter to equalize volume levels and to switch between digital front ends.I recall that certain transports and CD players fed into certain DACs sounded much better with the DIP inserted between them.Other combinations produced small/if any discernable
difference.The Cal Delta,which was supposed to be a low jitter transport, benefieted greatly from the addition of the DTI or DIP inserted between the transport and DAC.

I had both DAC1 and Alpha in my system for quite some time. Alpha was better than DAC1 in all areas I cared about (bass, midrange, air, musicality, and PRATT).

I ran both DAC1 and Alpha from SD Transporter. Alpha was more affected by the transport and power quality.

I kept the Alpha and sold the DAC1.

Right now I have the Alpha in a second system.

Thanks Chesebert, that's very helpful.

transnova - both outputs are active. you can switch your preamp inputs to see which sounds better. i like the tube sound with the better tube installed. probably will be replacing the opamps in the near future.

also, i also use jitter devices before my dacs. i currently use the monarchy dip units. i have used the audio alchemy dti in my den and family room with good results.

Thanks Rbstehno!!! I've been playing around with a Citypulse DAC.I like it a lot but am curious about the tubed section of the Music Hall.Also interested in the balanced outputs.