First Watt F8 - audioG Magazine

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

June 25, 2025

Lehmann Audio

Black Cube SE II

The advanced version of the multi-awarded Black Cube SE has a lot to offer: based on the SE audio circuit, the SE II has been upgraded with superior sockets, visually it excels by a housing with a faceplate. A bass filter, which can be finetuned extensively to your personal needs, takes the performance of the Black Cube series to a new level.

October 30, 2025

Naim

Uniti Nova Power Edition

Uniti Nova PE (Power Edition) is the all-in-one music-streaming system that is capable of driving even the most demanding loudspeakers, making it perfect for filling large spaces. Thanks to Naim's cutting-edge class D amplification technology, this Power Edition is the most efficient streaming product to date. Designed and engineered in Britain, this high-quality music-streaming system is everything you need for an exceptional audio experience.