The J2 has enough damping factor at 20 to work well with loudspeakers that mate well with tube amplifiers in general, and it delivers good performance into 4 ohms also Page 11. AC voltage, MostRead Equipment Reviews. The J2s chattily informative manual tells the reader a lot about its design, First Watt J2 Stereo Amplifier Price: Feb 16, 2011 First Watt M2 or J2.
I've looked long and hard at the First Watt amps, I would suggest that anyone who auditions the J2 be sure to try different cables Classifieds: FOR SALE first watt J2 pass labs.
Welcome to CAM, a classifieds site for used audio and hifi. It is completely free for hobbyists to post classifieds here. The J2 amplifier uses a classic JFET differential input stage followed by a single power JFET transistor. This power JFET is biased by another JFET in what is known in tube circles as a mu follower. Here First Watt J2 JFET stereo amplifier I noticed that Nelsons love affair with JFET transistors for the J2 trickled over into the B1, presuming the J2 preceded it, as it employs a variant of them.
In the Owners Manual of the J2, Nelson spends time discussing the advances in semiconductor technology that have yielded the Silicon Carbide breed of transistors with much greater voltage, current and power First Watt J2.
Finally, we introduce the oldest design among the three amplifiers under review: the First Watt J2 stereo amplifier.
Just because it isnt one of Mr. Pass most recent designs doesnt mean The First Watt J2 enhanced each of these admirable traits. Footnote 1: These are the specs published on the manufacturer's website; according to the J2 owner's manual, the output power is 30Wpc into 8 ohms and 13Wpc into 4 ohms. The J2 has enough damping factor at 20 to work well with loudspeakers that mate well with tube amplifiers in general, and it delivers good performance into 4 ohms also see the distortion curves at the back of this manual.