~ I love the Brimar CV455 KB/FB (Footscray) tubes and keep/roll them in LTA MZ3, Woo WA2, Woo WA6, Valhalla II (all with adapters). But they are 12AT7s…
~ By coincidence, I have been looking at Mazda 12AU7s in the Brent Jesse listings…
The Mazda are very polite. They have an unreal and beautiful tone to the treble that shows extension and air. They also have a beautiful finesse that is common to French made tubes. Compared to a nice pair of Mullards that I was running prior to the Adzams I'd say they were balanced but shy in sub-bass. If you mostly listen to classical, chamber music or jazz, I'd say that these would be ideal. The Mullards had more meat on the bones so to speak. Also the classic Mullard mid-range which plays so well with both male and female vocals. The issue I had with the Mullards was that I didn't get the clarity, separation, and imaging that I get from the Adzams. Also the low end seemed to smear and was bloated. If the Brimars can successfully handle the issues I had with the Mullards then I'd be all in.
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