Origin Effects releases BASSRIG Fifteen bass preamp pedal
November 18, 2025 · 2 sources
Origin Effects released the BASSRIG Fifteen on November 18, 2025, describing it as "a new bass preamp and DI pedal that pays tribute to the Ampeg B-15 Portaflex amp"1. It joins the company's BASSRIG range of what it calls "Amp Recreations"1.
The pedal uses an analog circuit that simulates the B-15's preamp, phase inverter, power amp and reactive load, according to Origin Effects1. An analog cabinet simulator drives the DI output and was made using measurements of a mic'd up B-15 cabinet1. The amp section has controls for Output, Blend for adding a clean signal, Drive and Amp Out EQ, the latter with two mini switches for Lo and Hi Cut, plus a ground lift switch on the front panel2. A three-way DI Cab switch offers Off, FX and On settings2. The XLR DI output can work as a clean DI, as a cab sim for other preamps, or as an unfiltered preamp for use with an IR loader2. Origin Effects says the Amp Out EQ lends B-15 character to modern bass amps1. The enclosure is brushed stainless steel1.
Gearnews lists the price at $485 and reports availability at Thomann2. Origin Effects says both the BASSRIG Fifteen and the Cali76 Bass Compressor in the new "Fifteen Blue" finish are available from its dealers worldwide or direct from its website1.
"The BASSRIG Fifteen's analogue design captures the warmth, compression and drive of the B-15 by simulating the entire circuit, preamp, phase inverter, power amp and reactive load."
The Cali76 Bass Compressor is now offered in a matching "Fifteen Blue" finish to coincide with the release1. Gearnews describes the B-15 Portaflex as an amp whose "signature warm, clean tones and subtle overdrive" became associated with the sound of '60s soul records2.