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
July 29, 2025
Onkyo
Onkyo Introduces C-30 CD Player, Expanding the Striking New Icon Series Hi-Fi Lineup
The C-30 Hi-Fi Grade CD Player delivers outstanding performance and value in a refined, audiophile-grade design, retailing at just $349. Engineered for discerning listeners, it features Onkyo’s exclusive VLSC (Vector Linear Shaping Circuit)—a proprietary technology that removes pulse noise from the signal path using advanced algorithms. The result is a clean, distortion-free analog output from its premium 24-bit/192kHz DAC, revealing every nuance of your music with breathtaking clarity.
Read more
December 26, 2024
Nordost
Introducing the Lifestyle Tonearm Cable
Nordost is introducing an exciting new entry-level option: the Leifstyle Tonearm Cable. This cable is a unique, simplified version of a Nordost tonearm cable, offering analog enthusiasts the chance to experience Nordost’s innovative technology in their home sound system at an incredible value.
Read more
May 19, 2022
Tchernov
Classic MkIII IC
The third incarnation of our best-selling interconnect retains the time-proved 0.50 mm² BRC conductors. The major design advancement is the modified 2-layer CAFPE® conductor insulation with the extended inner air-foamed PE layer, overlaid with…
Read more
FOLLOW US