18th of November, 2025
We are excited to release the BASSRIG Fifteen, a new bass preamp and DI pedal that pays tribute to the Ampeg B-15 Portaflex amp. This new addition to the BASSRIG range of “Amp Recreations” sets out to give bassists the full experience of playing through the world’s favourite studio bass amp, known for its distinctive punchy tones and favoured by a who’s-who of pro bassists from the ‘60s to the present day.
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. All coming together to deliver not just the sound but also the playing feel of this classic amp.
We’ve wanted to make a B-15 Amp Recreation for a long time because it’s just such a cool sound, but it’s been quite an undertaking to get it right. It required a new approach to the main circuitry, lots of hard work on the voicing of the cab sim, and improvements to the Amp Out EQ. The development process for the BASSRIG Fifteen has taught us things that will benefit future Amp Recreations too!
Also included is an analogue cabinet simulator driving the DI output, made using accurate measurements of a mic’d up B-15 cabinet. For players using real amps, Origin’s Amp Out EQ promises to lend some B-15 vintage character to even the most modern bass amps. With premium quality components and a brushed stainless-steel enclosure, the BASSRIG Fifteen is built to Origin Effects’ uncompromising standards.
To coincide with the release of the BASSRIG Fifteen, we are now offering their Cali76 Bass Compressor in a matching ‘Fifteen Blue’ finish. Both pedals are now available from Origin Effects dealers worldwide or direct via our website.
BASSRIG Fifteen: https://origineffects.com/product/bassrig-fifteen/
Cali76 Bass Compressor: https://origineffects.com/product/cali76-bass-compressor/
