New Release | Nembrini Audio - Bass 3500 Amplifier

Published: 08.08.2026

For all bassists, Nembrini Audio has released the new Amp Sim Bass 3500 Amplifier, which was released on August 5, 2026.

The Bass 3500 Amplifier from Nembrini Audio is a detailed recreation of the legendary Hartke HA3500 bass amplifier and offers a complete bass amplification and recording suite.


Key Features and Content

The plugin features the following core components:

Hybrid Preamp & EQ 

At its heart is a hybrid preamp that allows you to independently blend tube and solid-state stages to combine warmth and punch.  For tone shaping, a 10-band graphic equalizer (30 Hz to 8 kHz) and dedicated contour controls for lows and highs are available. An integrated compressor with an LED indicator controls the dynamics.

Effects and Signal Path

Before the amplifier, the order of four effects (Noise Gate, Envelope Filter, Octaver, Modern Tubes Drive) can be rearranged using drag-and-drop. Following the amp are a 6-band parametric equalizer and other studio-quality effects such as a compressor, modulation, and analog delay.

Cabinets and IR Loader

The suite includes four bass speaker cabinets, four microphone models with adjustable positioning, and three room simulations. A dual impulse loader allows you to load and mix two external impulse responses (IRs) from any third-party provider.  There is also a cabinet bypass for using external power amplifiers or software.


Who is the Bass 3500 Amplifier designed for?

The plugin is primarily aimed at bassists and music producers who want to digitally recreate the characteristic sound of the legendary Hartke HA3500 amplifier.

Thanks to its specific features, it appeals in particular to the following users:

  • Studio sound engineers: Thanks to the hybrid preamp (a blend of tube and transistor sounds), the detailed 10-band graphic EQ, and the integrated dual IR loader for maximum sound shaping.
  • Live bassists: The ability to load custom impulse responses and shape the signal path with professional effects (compressor, noise gate, envelope filter) makes it a versatile solution for direct (DI) recording or live setups without heavy equipment.
  • Fans of the “Hartke sound”: Especially players who are looking for the distinctive midrange and clear definition in the high frequencies (often associated with aluminum cones) typical of Hartke, as produced by the original’s hybrid design.

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