I've been running an Epik Valor since Nov 2008 and have been really pleased with the perfomance.
I have been experimenting in my home rig - a hybrid setup for both HT and Music.
For awhile now, I've been doing mostly music listening with a Music Fidelity A5 Int Amp with HT bypass. So, I've got the Valor hooked up via preouts on the A5 using some AQ Black Thunder cables to the line level inputs on the Valor.
Today, I wanted to watch some movies so I disconnected the line level cables and hooked up my AQ Sub-x cable to my AVR sub out to the LFE input on the Valor.
I turned on the sub and got a LOUD Buzzing!
So I checked the connections - verified I'm going from sub out to LFE input. Got the loud buzzing.
I thought maybe I have some weird new ground loop problem - so I disconnected the LFE cable from the AVR so it was just connected at the sub end - all other equipment off. Turned on the sub - BUZZZZZZZ.
I hooked up the line level inputs and everything sounds fine - CDs, LPs, SACD - works great, sub operates - get good sound.
So, its only when there is a cable connected to the LFE input.
I thought maybe I have a shorted LFE jack on the sub.
So, I pulled out my multimeter and with power disconnected from the sub, I hooked up an RCA cable to the LFE jack and measured the ohms across the far end of the cable expecting a "0" reading for a short.
Nope - it read 60.1k-ohms.
I moved the cable to the Line Level inputs and again measured the impedance at the far end of the cable and got 55.4k-ohms for both the Left and Right Line Level inputs.