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EQUIPMENT FORUMS >> CSP3 >> Gain Staging CSP3 into ZMA
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Message started by bloodlemons on 03/22/24 at 20:28:05

Title: Gain Staging CSP3 into ZMA
Post by bloodlemons on 03/22/24 at 20:28:05

I just picked up a new-to-me CSPS/Anniversary Mods. I'm running into my Zen Mystery Amp. The combination sounds very, very good.

I am in no way having difficultly finding good settings, but I'm curious to see if anyone here has preferred settings for this combo, or a philosophy on how gain staging should properly apply in this situation.

FWIW, I'm currently setting the ZMA at about 40% output and then using the CSP3 to get whatever seems like proper volume for the listening situation. This combo, which minor adjustments depending on the source material, seems to allow for a more holographic soundstage, but it's still early days for me and this setup.

Anyway, thoughts and dogma welcome here!

Title: Re: Gain Staging CSP3 into ZMA
Post by HockessinKid on 03/22/24 at 20:55:47

I run my ZMA at ~4O% and CSP3 at ~ 40-50% depending on the source and recording. Both have the 25th Anniversary modifications. The ZMA drives a pair of Caintuck F15 Magnum OB speakers and my small listening room is 13.5' x 15.5' x 7'.

Using a quad of matched Gold Lion KT77 power tubes, 6N5P input tubes from Decware, and 1940's RCA OA3's in the ZMA. Also a Swiss Digital Fuse Box (SDFB) w/ copper sluggo in the ZMA and one coming for the CSP3. FWIW the SDFB is highly recommended, really opens up the panfull potential.

HK

Title: Re: Gain Staging CSP3 into ZMA
Post by bloodlemons on 03/22/24 at 22:01:41

Perfect! We are both in the same ballpark as far as gain goes, pretty close on a number of other factors as well: I'm using GEC KT88s, a variety of cherry-picked NOS tubes for everything else, Sophia Aqua II for rectifiers. SDFBs are also in play; I have the new rhodium-plated Sluggos on their way to my from Vera-Fi as we speak... Good times!