New Coincident Frankenstein 300B Stereo Version

Coincident has a new stereo version of the Frankenstein. I currently use Coincident Super Victory IIIs speakers driven by Pass Labs XA30.8. My preamp is EAR Yoshino 868PL.

Logic tells me the Frankenstein Stereo would be a steller match with my speakers. I have never had SET amps in my setup before.

Just wondering if I will be going the SET route, would I lose bass?

Love the Pass XA30.8 but curious about what people call "SET magic".

Any thoughts would be appreciated.


@sim_audio_nerd I think you are wise in exercising caution here.  I've been a customer of Coincident for over a decade now, and still own two pair of Coincident Speakers, the CSL, and the Frankenstein Monoblocks.   Obviously, I have a deep appreciation for Israel Blume's design and execution talents.  I would also offer an opinion that his stuff is quite reasonably priced.  You get a lot for your money.

I think the value proposition probably necessitates some constraints on business practices.  I think it is fair to say that he is a superb designer and a hard nosed business man.   It's kind of a here it is, take it or leave it approach.  Top tier customer service has a cost that someone must pay.

The stereo Frankenstein looks like another superb value, and I suspect it will sell like hotcakes at that price.   The reality is that there are going to be some serious compromises associated with this single chassis design.  In the past, Israel has explained how important, and how difficult in execution, use of the 6EM7 driver is.  Going to the 6SL7 is not just a simple tube switch.   My guess is that the performance of this stereo version will be closer to his 300B Dynamo than it is to his Frankenstein monos. Just a guess.

Also relevant here is that in times past, Israel himself conceded that a 300B amp may not be the best choice for the Super Victory, depending upon the things we have already discussed--music, room, listening levels, etc.   On the other hand, he has done shows where he has used the Franks to drive the SVIIs, so it's not like one can't make this work.  It is just not optimal, and I suspect the stereo version will be another step down from "not optimal."

You don't say in your original post what your current system lacks that you would seek to improve.  The obvious inference is introducing some SET magic.  I think we all get that, and it is important to note that my  system is working so well for me because I am using an SET preamp.  You might give some thoughts around that option if you are locked in on using the SVIIIs and if you can live with the limited functionality of the CSL.   Just my opinion, but I think the 101D based CSL  is Israel Blume's finest piece when used with the superb Psvane WE replica 101D tubes.

I have some other thoughts that are tangential to this post.  If you want to discuss further, PM me. 


Just my opinion, but I think the 101D based CSL  is Israel Blume's finest piece when used with the superb Psvane WE replica 101D tubes.

Has been my assessment for a long time. Simply a stunningly good Line stage and no concerns with regard to power output needs as arises with the superb sibling Frankenstein SET.

Bill, excellent comments in total.  I hope that @sim_audio_nerd reaches out to you.


@charles1dad Thanks for your kind words, my friend.  The CSL can be a superb foundation for anyone not needing a full function preamp.  Stunningly good is the right descriptor.  I'm still toying with getting the latest update.

I actually live in the same city as Israel. I wanted to audition but he told me it's not possible.

He obviously doesn't want to earn your business.  Walk away, there are many other manufactures/dealers would love to earn your business.


The CSL is indeed a special piece, made that much better with MK II upgrades. I also got the Amtrans switch upgrade, much more precision piece than the standard upgrade switch.


I've given up on using Psvane WE101D with no longer having trustworthy distributor/seller here in NA. In last six month purchased two singles,one DOA, another failed at around 50 hours. Perhaps Woo Audio could be enticed to sell 101D, doubtful since none of their headphone amps use that tube. I did purchase my 300B Acme from them, no issues in well over 200 hours now. Chinese stock of Chinese tubes cannot be trusted IMO. Until then, I'm completely satisfied with Linlai  Elite 300B solid plates purchased through Grant Fidelity, wonderful tube. Mesh plate not so much.