Steve Deckert
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The Select (SE84CS and then later the SE84ZS) used a better cathode resistor for the output stage and our WIMA FKP-1 series coupling caps which are of course very good.
The SuperZen is now using the same cathode resistor, but also has updated plate resistors, updated front end power supply (we removed the two 3.3uf poly caps) and the Jupitor bees wax foil caps with silver leads. These caps in this amplifier have a more organic sound and actually better transparency than even the VCAPS. Of course compared to an original SE84CS, the SuperZen has the CCE mod and the CKC mods and twice as thick of a chassis for less vibration. It will sound better, no question, however keep one thing in mind...
Zen amps get better sounding the older they get. An SE84CS from many years ago will sound better than a new SuperZen for quite some time, until the SuperZen has fully broken in and got some seasoning under it's belt. We have built new SE84CS and compared to new SuperZen to find out what the differences really were, and lets just say they are substantial.
Now the only difference between a new SE84ZS and the SuperZen would be the chassis itself. We will still offer the SE84ZS for anyone who prefers this style of chassis.
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