First let me start with my set-up: PC USB–>DSD Sr.–>BHK Pre–> Simaudio Moon Rocks–>B&W 800D3
I just purchased the DSD Sr. two weeks ago. My original plan was to run it directly into my power amps. Unfortunately there was an extremely loud hissing noise emanating from my speakers without the 20dB attenuation enabled on the DSD Sr. With the 20dB attenuation enabled the hiss was gone but now the max volume on the DSD Sr. was not enough for my taste.
I really loved the sound of the DSD Sr. so I wanted to keep it in my system, I figured the best path forward was to add the BHK Pre to my set-up to modulate the volume. I received my BHK Pre today, hooked everything up and the speakers were hissing. The hissing is not as loud as it was on the DSD Sr. w/o attenuation but is still audible over my desktop PC fan noise from my listening position which is unacceptable to me. The hissing occurs independent of volume of the BHK Pre/DSD Sr. and is still present even if I enable the attenuation on the DSD Sr.
There is absolutely no hiss when only my amps are connected to the speakers. I have never had a problem with hiss before, my previous dac/pre-amp was a Benchmark DAC3 and it was dead quiet in this exact same system.
Is there anything I can do or is the BHK Pre incompatible with my system?
I appreciate the input,