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Woo Audio Amp Owner Unite
Feb 11, 2013 at 11:43 PM Post #24,151 of 42,298
Quote:
i right i said:
I just joined headfi for a thread like this. I ordered a Woo WA6 which should arrive tomorrow. I don't know how I'm going to sleep! I already ordered an early 50s Mullard GZ34 rectifier tube and NOS 6GL7s drive tubes. I will be driving Sennheisers (HD598s and HD800s). I'm glad to be in good company!
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Welcome - I caught the head-fi bug while living in Chicago.  Lots of cold nights for critical listening sessions.  You've got some nice equipment coming your way!
 
Feb 12, 2013 at 1:34 AM Post #24,153 of 42,298
Quote:
clevor said:
Has anybody seen or heard of USAF-596 tubes made by MU Inc.? As far as I know, United is the only brand associated with them.
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No, I haven't. However, MU Inc. is a private company located in SoCal (Oceanside) and was established in 1965. They offer electron tubes, X-Ray Apparatus tubes & Irradiation stuff ect... 
 
Perhaps, they or someone else makes a version or they're re-branding. Last series of '596' tubes I've seen from United Electronics ends by 1964-65. Coincidence? I'll call/write 'em tomorrow.
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Update: They're legit. They focus on Defense contracts with the Federal Gov't; located next door to Camp Pendleton. 
 
Feb 12, 2013 at 1:41 AM Post #24,154 of 42,298
Quote:
clevor said:
Has anybody seen or heard of USAF-596 tubes made by MU Inc.? As far as I know, United is the only brand associated with them.
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Feb 12, 2013 at 5:11 AM Post #24,155 of 42,298
Thought I'd drop in to say hi with the WA7 + EH Gold Pin 6C45Ps and my LCD-3s.
 

 
Feb 12, 2013 at 5:59 AM Post #24,156 of 42,298
Very nice!

It's funny, with the relative sizes of diminutive Fireflies, the oversized LCD3, and the ARTist 3 in there too, it's hard for the brain the get a sense of what size anything actually is in that pic.

Impression of the newest Woo?
 
Feb 12, 2013 at 8:40 AM Post #24,157 of 42,298
With the stock tubes, the WA7 is warmish but beautiful through the mids. Vocals and jazz are glorious. Background is dead black, even at full volume with sensitive IEMs. The DAC is good too. The whole unit has character to the sound without overdoing it. The Gold Pins are brighter, more open, but they've only been in a few hours so far and I'm hoping the treble will settle a little after a few days.
 
Here's a rather cramped side-by-side picture that should give you an idea of the size. The main amp section is small, but not PanAm small. It's very neat since the power supply sits behind my desk.
 
 

 
Feb 12, 2013 at 3:10 PM Post #24,160 of 42,298
Great! I had scheduled my return to the listening room Wednesday night. Let's see if I can make that happen tonight...after NCIS: Los Angeles, of course.
 
Feb 12, 2013 at 11:47 PM Post #24,165 of 42,298
^ very nice!
 
i see a d7000 cable as well there, its trying to plug itself into the amp 
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