Not to turn the conversation, but I have a don Sachs 6sn7 preamp going into a pair of first watt f4s and it is definitely not boring. It improves the signal from my dac in every way without being syrupy or tubey at all. You can read about it in my systems page.
Pass amp paired with audio research pre?
Wondering if anyone has had experience matching a pass labs amp with an audio research preamp. Do they make a good combination? Thinking about audio research reference 5SE matched to one of the X series pass amps. I have Harbeth 401.2 speakers...kind regards