First Watt F4

[JBLOG]

Nelson Pass' latest amplifier "F4" is a current gain design and looks quite interesting particularly in biamp scenarios. Has anyone demo-ed this amp?

http://www.firstwatt.com/products/f4.htm

[doodlebug]

You may not find many folks here who have the $$ for one of these. I'd suggest a couple of other sites:

* www.passdiy.com (http://www.passdiy.com) Here's where you'll find lots of technical discussion of the design elements of what goes into Mr. Pass' First Watt gear.

* http://www.diyaudio.com/forums/forumdisplay.php?forumid=8 Here's an active group of folks who are actually implementing the Pass designs. Search here for more First Watt questions. Nelson also posts here...

I've built the PassDiy Pearl phono preamp and its a keeper. Perhaps someday I'll do one of the Pass Class A systems......

They should be excellent amps for high efficiency JBL speakers.

Hope that helps.

Cheers,

[Ian Mackenzie]

I have the board from a group buy..not yet starting this project.

From what I have read its a nice amp.

Ian