Steve,

I plugged in those drivers to my Horns and….. I never had it sooo good!!
I thought the ol telefunkens and ribbon tweeters were good, but these take it to a whole new level. I couldn’t be more pleased with these.

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The ZP3 phono stage has been in development for several years as a one-box alternative to our ZP1.0 phono stage that used a remote power supply.

The ZP1.0 was designed as a reference grade phono stage. To reach the performance level it did, it required it’s own dual mono remote power supply which priced it out of reach for many people. You can read about the work that went into it in the following two papers, Diary of a Phono Stage” and
Official White Paper for the ZP1.0

Since then the ZP3 has been one of those pet projects of mine that I would get out about every 6 months and try to make happen. I say try, because I had set the a fairly high benchmark with our ZP1.0 and didn’t want to settle for anything less, especially in the noise department. (That’s where it always got sticky). It’s hard to build a phono stage in a single chassis that is as quiet as one done with a remote power supply.

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