Bruce Moore Tube Amps


Does anyone have direct experience with Bruce Moore amplifiers? I'm thinking about purchasing a "Dual Mono 70" to replace an ARC VT100 Mark 2 that I own. I'd appreciate any feedback about the amp in general, or a comparison between the two. Thanks.
peter_s
Peter,
I have been involved in high-end audio as a hobbyist for several years now. I've honestly never been more satisfied with the sound of my system until I purchased Bruce Moore Audio equipment. I started with the Dual 70 power amp (traded VT100MKII). I still had my Audio Research LS15 preamp and the improvement with the Dual 70 was unbelievable. Last week Bob sent me the Companion III preamp to try in my system and I was blown away once again. The sound was full and the soundstage was wider than I have ever heard. I am in the process of sending Bob my LS15 and a check for the difference to buy the Companion III preamp. I was initially apprehensive because of a lack of reviews and awareness of the Bruce Moore products. I also did not know if 70 wpc would work with my Martin Logan SL3's. These products are proof that magazine reviews do not necessarily determine the best products out there. The Dual 70 drives the speakers with no problems. No signs of clipping whatsoever...at any tolerable volume level. Bob states that the Dual 70 uses transformers that provide substantial headroom making the amplifier perform like one rated with far more power. Compared to the ARC gear, I can honestly say the Bruce Moore gear is far less analytical sounding. There was leanness in the sound that became rather fatiguing with ARC. The Dual 70 is rich and full without sacrificing resolution, detail, and air. I would make the trade without question. I wish I had known about Bruce Moore years ago. I would have saved a lot of time and money! Another thing I really like about the Dual 70 is you can adjust the bias for each output tube before every listening session once the amplifier stabilizes. There are four small pots on the front of the amp and a bias meter indicating correct bias. This procedure takes about 30 seconds. With the ARC you are required to take the amplifier apart to adjust bias. You also need a multi-meter (preferably two) to make the adjustment efficiently. Unless you have at least three hours to spare and are technically above average, you have to ship the amp back to ARC and pay substantially for shipping and the service charges. Take the plunge and don't look back. Bob is also the most knowledgeable, honest, and unbiased dealer I have ever dealt with. Let me know if you have any further questions! I'd be glad to help.
Take care,
Sean Merkle
I would seriously suggest auditioning the Wolcott monos before making a different investment. It is a serious step up from the ARC amps you cite.
Smerkle, I noticed that the Dual 70 uses four 6922s and four KT88s, how does the amp sound with it's stock tubes and what if any NOS tubes have you tried with it?
Gunbei. Bruce Moore sells direct through RB Audio in California. Bob Bergner, who is RB Audio, is a heck of a good guy, and you would enjoy talking with him about Bruce's products. I believe that Bob has a demo plan where he will ship you an amp to demo in your home. Bruce Moore is legendary and has designed such products as the MFA line with Scott Frankland,including the legendary Luminescence preamp, the original Audible Illusions preamps, Precision Fidelity, and Paragon. He has only gotten better as he went along. Hard to beat his stuff.