I have found that using pinch waist Apmperex E180CC in the 1st position, Telefunken ECC803s in the 2nd, and Telefunken 12AV7 in 3rd, sounds best in my system. I have the 5 star's, but felt them too thin, with the berning. I liked them with Exemplar, but feel the PW amperex is best over all. I have some more PW on the way, and will play with adding more into the system. JMO, YMMV.
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