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

September 20, 2025

Transparent Audio

EXPERIENCE THE ALL NEW REFERENCE POWERISOLATOR

The REFERENCE Powerlsı-olator (RPI) feature an all new chasis and many significant improvements. RPI uses more effective power factor correction and custom-designed common-mode noise rejetion than previous generetions.

June 18, 2025

Shunyata Research

Introducing Everest-X

Shunyata Research is proud to announce the release of the Everest-X, the most advanced power distributor in the company’s 25-year history. As the successor to the award-winning Everest 8000, the new technologies deployed in Everest-X represent a dramatic advance in the pursuit of absolute fidelity in recording, mastering and listening systems.