KT150s in a Preamp Design?

I have a preamp with a separate power supply made by the company you posted the link to.  Noromance is right, my power supply can use two 866a Mercury tubes it made a big difference from the stock 274b tube that came in the preamp. The bigger tubes also make a big difference in the amplification stage in the same way, even in a preamp. The guy who builds these has excellent feedback on cunuck audio mart.

Hey Noromance, what is the make/model of that phono stage?  Sounds interesting. 

What's really crazy about that preamp is the number of tube types it can take!

KT150 (can also use VT52 / CV1052 / 6G6 / 6V6 / 6K6 / 6Y6 / 6F6 / 6L6 / 6550 / KT66 / KT77 / KT88 / KT99 / KT100 / EL34 / 5881 / 6CA7...etc direct plug-n-play ), which give superb dynamics sound with extremely good bass control . Rectifier tube use 3B22 (can also use 1616 / 866A / 836 / 3B27 / 3B28 / 2A3 / 300B / 572B ..... with 4 pin to 8 pin converter can also use 5U4G / 5AR4 / 5R4 / 53KU / GZ37 ...etc,

I've used 3b22/1616/3b28/866a in my space tech labs rectifier. They all sound different, the 3b22 has great instrument separation but sounds a little harsh like solid state, the 866a and 1616 sound the best smooth detailed dynamic sound with a big soundstage.

Hey I'm interested, and more so if you actually try it and compare KT150s to 6SN7s in a preamp.  I run four 6SN7s in my preamp and four KT150s in my mono amps. 

Have wondered who's actually tapped the real potential and ceiling limit of a KT150 tube in different ways. Let us know if you do.