AI-generated product photo — not official manufacturer imagery.

B4

Name: First Watt B4
Brand: First Watt

First Watt

2012 – 2020

DigitalDigital ProcessorsDiscontinued

Estimated price (community-sourced)

$850

About the B4

The First Watt B4 is a stereo active crossover designed by Nelson Pass, featuring adjustable crossover frequencies, slopes (1st, 2nd, 3rd, or 4th order), and output levels. It employs JFET active circuitry operated without feedback for exceptional clarity and low noise. Originally priced at MSRP $1200, it is highly regarded for its dead quiet performance and flexibility in bi-amping setups. No longer available new from the manufacturer.

Specifications

Full structured specifications are available to members.

See the full picture as a member

Create a free account to see where to buy, full structured specifications, similar components, and the systems that pair this with other gear.