The Origin Effects Bassrig Fifteen delivers a precise, all-analogue recreation of the renowned Ampeg B-15 Portaflex amplifier, a historic studio favourite since the 1960s. Designed for players seeking reliable vintage bass character, it captures the original amp's warm clean tones, controlled breakup and consistent low-end behaviour. By basing the circuitry on a fully analysed vintage unit, the Bassrig Fifteen provides an authentic response that allows bassists to achieve classic studio voicing in any modern setup.

Its straightforward control layout enables rapid adjustment of familiar tones, while the Blend control offers improved note definition by mixing in the clean signal for added clarity and articulation. The all-analogue 1x15 cabinet simulation, delivered through the DI output, provides a mix-ready sound that is ideal for recording or direct-to-PA use. This feature removes the need for external cab IRs or additional processing, giving users a dependable and consistent output in both live and studio environments. Meanwhile, the high-quality buffered bypass ensures signal integrity when the pedal is not engaged.

For players using backline amplification, the dedicated Amp Out EQ section provides detailed voicing control to match the pedal's tone to any amp or cabinet. This allows the Bassrig Fifteen to maintain tonal consistency when switching rigs, balancing clean and driven sounds, and ensuring that the on-stage output aligns with the DI tone. Built in England with premium components and a durable stainless steel enclosure, the Bassrig Fifteen offers long-term reliability and brings classic B-15 performance to a wide range of professional applications.

Key Features:

• Faithfully recreates the sound and feel of the Ampeg B-15 amp
• Complete, valve amp-style signal path recreated in all-analogue circuitry
• Simulated push-pull power amp with reactive load
• All-analogue 1x15 cabinet simulator and DI output
• Extensive AMP OUT EQ controls ensure compatibility with any rig
• BLEND knob to mix in clean signal
• High-quality buffered bypass
• Premium components throughout
• Designed and built in England