SOLD to M.H. in Southern California For sale is a First Watt B4 Crossover.
The price is $915 which includes Paypal fees and FedEx ground shipping. CONUS only, please.
I used this crossover very successfully for two years in my bi-amped Azurahorn/15" bass system. I've since moved to digital crossovers. The B4 active crossover is really neutral, letting the other components in a system shine.
I am the original owner -- purchased in Feb. 2016 from Reno Hi-Fi. This is the upgraded and latest design, not the original version. Full details here:
http://www.firstwatt.com/b4.htmlOne of the many cool things about this crossover is that it is chock full of near unobtanium Toshiba JFets. From the firstwatt.com site: "A stereo active crossover with adjustable frequencies, slopes, and level. Active circuitry is provided by Jfets operated with no feedback." It also has a really great "user interface" -- i.e. the unique and simple way to set a myriad of crossover frequencies and types.
This B4 is in very good condition. See photos below. All features and functions are guaranteed to work perfectly. All original parts are included:
B4 active crossover device, 120v version, with attached SMPS power supply.
Power Cord
Manual
Original Box and Packing Material
For my excellent feedback see williamdc on Audiogon and williamcap on Ebay.





