Ampeg B-15N

The Ampeg B-15N plugin, developed by Brainworx and distributed through Plugin Alliance, delivers a faithful digital emulation of one of recorded music's most consequential bass amplifiers. The original hardware unit shaped the fundamental character of countless hit records across soul, funk, and rock from the 1960s onward, with players like James Jamerson and Donald "Duck" Dunn establishing its tonal blueprint as industry standard.

This plugin captures the dual-channel architecture of the rare Heritage B-15N reissue, offering both 1964 and 1966 variants. The 1964 channel models a 25-watt cathode-biased circuit with a softer, more compressed response ideal for jazz and soul applications. The 1966 channel steps up to 30 watts with fixed bias architecture, delivering greater headroom and midrange presence suitable for more aggressive playing styles. The Baxandall EQ section provides genuine tonal shaping capability rather than mere window dressing, while gain staging through the volume control allows you to dial in either thick, smoky tones at lower levels or harmonic-rich saturation when pushed harder.

Brainworx's circuit modeling captures the frequency response and harmonic behavior of the original's dual 6L6 tube power stage, translating that thick fundamental character into the digital domain with technical competence. The included FX rack with noise gate and additional processing rounds out the feature set without overwhelming the core amplifier emulation.

The B-15N serves producers and engineers seeking authentic vintage bass tones, particularly those mixing within soul, funk, or classic rock frameworks where this amp's sonic signature remains the touchstone reference.