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Old 28th July 2013, 09:53 PM   #51
kmtang is offline kmtang  Canada
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First I use the Peerless output transformer came with the W5M kit. Unfortunately, it wasn't sound right to me. Then, I put the Lundahl LL1620-PP and it had much better performance. However, the vocal wasn't sweet at all unless I play with some latest CD music. I use Lundahl's amorphous core OPT for my single ended amps and I thought how would it make the difference with amorphous core OPT in PP amp. Then, I persuade my very best friend to buy a pair of the LL1620AM-PP for each of us. After I got the AM-PP OPT, I put that in, and wowhhhh, it sound so lovely with very finite details like SE amp and slamming punch bass.

The Williamson design of the power stage bias helps in reducing the distortion and balancing of the two tubes.
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Old 29th July 2013, 12:47 AM   #52
kmtang is offline kmtang  Canada
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this is the one I am listening.
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