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In Reply to: RE: New K&K ST70 power transformer question posted by Cpwill on December 29, 2012 at 15:47:37:
The new series PC board will support both the lower voltage "stock" power transformers and the new high voltage/current transformer. The specific goal of the new board was to accommodate a 550VDC supply with KT-120s running at 70mA each. The improvement in sound quality is pretty substantial. It's even more substantial if you fit a pair of Lundahl LL1682/PP outputs (for 4 ohms) or LL1663/PP (for 8 ohms). I just finished fitting my upgraded prototype new board unit with LL1682/PPs and before they are even broken in they are another big improvement over stock ST-70 transformers. The new Lundahl transformer covers for these outputs made that possible. A picture is attached showing this amp. The chassis is a Triode Electronics chassis, otherwise the parts are all K&K Audio sourced.
Kevin Carter
K&K Audio
www.kandkaudio.com
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Follow Ups
- RE: New K&K ST70 power transformer question - KevinC 16:02:01 12/29/12 (4)
- RE: New K&K ST70 power transformer question - Brinkman 18:53:24 12/31/12 (3)
- RE: New K&K ST70 power transformer question - KevinC 12:02:33 01/01/13 (2)
- RE: Closeness of the KT120's - Ejam 20:27:39 01/17/13 (1)
- RE: Closeness of the KT120's - KevinC 06:05:37 01/21/13 (0)