Home Amp/Preamp Asylum

Looking for a new Amp or Preamp? If you're after tubes, post over here.

First Watt J2 single-ended, Class-A, all-J-FET amps

Bought one to evaluate and then quickly another to power my 97dB-sensitive Serenity Acoustics Super-7s.
 photo 2014Dec23_Roompano_SAM0164_1800w_zps4bbcb1be.jpg

With Nelson Pass's approval, I wired the 2 channels in each amp in parallel; max. power went from 30WPC into 8 and 15WPC into 4 to 30 Watts into 8 and 60 into 4. Have added highest-quality powersupply-bypass caps--BlackGate FK 2200/35s and SoniCap 0.47uF Platinums--on the boards as close to the output transistors as possible...
 photo 2014Dec15_outputbypasses_1000w_zps775393b1.jpg
The BGs are visible hanging from the board but the Platinums are farther 'back' and not visible.

The longer I listen, the more convinced I am that this amp-and-speaker combination is the best I've ever had, and the amps I've had include WAVAC MD-805m and Coincident Frankenstein II SETs. This combination is VERY musical, full range*, and resolving.

I'm THRILLED.

* with response well into the bottom octave with their powered woofers



Edits: 12/23/14 12/24/14

This post is made possible by the generous support of people like you and our sponsors:
  Schiit Audio  


Topic - First Watt J2 single-ended, Class-A, all-J-FET amps - jeffreybehr 16:58:25 12/23/14 (37)

FAQ

Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.