By the way; I respectfully disagree with the assessment that 'the best preamp is no preamp', as is stated above. Amps need to be driven. Even the vaunted Berning, with an integrated config, sounds better when used with a great preamp. That doesn't mean that the pre, is invisible, because, depending on the interconnects etc. the sound is definitely changed. But a GOOD preamp, will drive the amp to its best sound. No experienced audiophile, who has made these comparisons would disagree. A few years back, when passives first came into favor (or at least came around with my having noticed), I was personally distressed, because at first, I thought, I was missing something. I thought, I was wrong, because it always seemed to lack weight, and staging, and such, with the passive. Then I started talking to manufacturers of (not electronics, who would maybe have a vested interest in something other than a passive) and they all agreed. In principal, they all said, "Sure, a great preamp always drives the amp better, Everybody knows that." This is a paraphrase, but the meaning is in tact. Systems without active preamps, sound thinner, and have much less dynamic attack and decay. For the record, later I experimented with brand, after brand, and found without exception, active, (read good) preamps always help. Even the Wadia CD player, the most recent attempt at eliminating the need for a preamp; sounds better with a great preamp. This is of course, in my humble (and others) opinion. I am sure you can find others who disagree. Try for yourself.