First Watt F8 First Watt, April 8, 2020

Originally created almost 6 years ago, the F8 is a stereo two-stage single-ended Class A amplifier using the NOS Toshiba 2SJ74 P channel Jfets and SemiSouth R100 SiC power Jfets for signal gain, plus IRFP240 Mosfet mu-follower current sources, for a total of three devices per channel.



It is similar to the J2 amplifier, but has only one front end transistor instead of six, operated as a current feedback amplifier (CFA) as opposed to the J2’s voltage feedback (VFA) differential input. This front end is more consistent with the single-ended approach to amplifier design and yields a purer second harmonic character, less distortion with lower negative feedback, greater bandwidth and higher damping factor.

Press Release Documents

Website Address

https://www.firstwatt.com/
More Press Releases
September 17, 2022
Bowers and Wilkins
Bowers & Wilkins takes over Abbey Road Studios for 800 Series Diamond
An exceptional range of loudspeakers deserves a special launch event. That’s why we revealed the new 800 Series Diamond to the world from inside Studio Two of the world-famous Abbey Road Studios.
Read more
May 22, 2025
MoFi Electronics
MOFI ELECTRONICS X FENDER AMERICAN VINTAGE TURNTABLE
The MoFi x Fender American Vintage turntable is a true meeting of legends—Fender’s California-hand-sprayed, three-color sunburst alder-wood plinth meets MoFi’s audiophile design ethos in one stunning package. Its sleek silhouette and rich finish pay homage to rock ’n’ roll’s visual heritage, bringing a gallery-worthy presence to any listening space. More than a turntable, it’s a piece of Fender history reimagined for vinyl’s modern revival.
Read more
June 3, 2025
Marten Design
Coltrane Supreme Extreme: engineering without limits
We’ve always believed that real progress in audio comes from removing the usual limits — and trusting our instincts. When our design team has the freedom to explore bold ideas, innovation follows. With Leif Olofsson leading the way, we pursued that philosophy without compromise.
Read more
FOLLOW US