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
April 2, 2025
Luxman
New product information P-100 CENTENNIAL
100th Anniversary “CENTENNIAL” In 1925, inspired by an experimental broadcast from Japan’s NHK, a visionary businessman crafted a prototype radio receiver and shared its technical manual. This breakthrough captured the imagination of audio enthusiasts, igniting excitement and innovation.
Read more
July 2, 2026
Focal
Scala Utopia EVO M - The Icon Evolves, the Emotion Intensifies
Vocals are strikingly lifelike, treble is exquisitely refined, and bass is deep, powerful and perfectly controlled. The result: a balanced, expressive sound that remains true to the artist’s intent.
Read more
January 24, 2026
Gold Note
The new Gold Note series 5.2 is born
The Gold Note Series 5 enters a new era. It will be called 5.2, and it is much more than a technical or stylistic update. It is the natural evolution of a line created to make the Gold Note experience more accessible, now reaching a new level of maturity – more complete, more aware and more consistent with our vision of high-fidelity sound.
Read more
FOLLOW US