volume level and xlr

Shadorne,
Although I am not technically savvy enough to understand the specifics of your answer, I think I get it generally. However, I would think that Simaudio has their amps and sources matched.

According to the i-7 manual, each input has an independently configurable volume offset, programmable between +10db and -10db. Have you tried adjusting that, or checking to see what it is presently set at?

Re question 2, it depends on a lot of things (cable length, noise environment, whether or not there is a hum pickup problem, whether the components are fully balanced or just balanced at the interface, the quality of the differential driver and receiver stages, etc.). Those variables can result in the balanced (xlr) interface being either better or worse than the unbalanced (rca) interface. All I can suggest is to try it both ways and seeing which you prefer, if any differences are perceivable.

Regards,
-- Al

The XLR standard output is 3 or 4 db higher vs RCA, so you must have a setting off somewhere as Almarg suggested. A true balanced cable in a balanced circuit has a lower noise floor and 3 seperate wires for +, - and ground.

Great question btw Valinar. My experience is very similar. I have an ASR Basis Exclusive phono pre that has both XLR and RCA outputs. When using the XLR outputs to my XLR inputs on my Denon CDR, the output is substantially less than when using the RCA outputs to the RCA inputs to my Denon. I prefer the XLR...overall much better sonic performance than the RCA. Though there are quite a few technical reasons that could easily explain why this is occurring, I would like to think that there is a mysterious force from planet audiophilicus preposteri causing this phenomenon. As silly as this may sound, having personally surpassed the highest level of subjectivity in our audiophile measuring capabilities...I have nothing more to base cause and effect speculation, other than just pure lunacy. Most of us have achieved this profound level...but are afraid to admit it. Cheers

Almarg,
You were right. I went into the software setup and reconfigured the volume offset setting. Thanks!