Rob Papen SubBoomBass 2: free update 1.0.4 adds new filters, effects, sounds, and more - December 18, 2025

Rob Papen SubBoomBass 2: the new free update 1.0.4 adds plenty of new filters, effects, sounds, and more to the bass Synthesizer plugin.

Rob Papen released the new eXplorer 10 bundle this March, which now includes three new synthesizers (RAW 2, SynFeX, WirePluck and an exciting effect called DelGrain.

But that’s not all. There’s an exciting free update to the popular Rob Papen SubBoomBass 2 Synthesizer plugin.



Rob Papen SubBoomBass 2: Update 1.0.4
As a reminder: SubBoomBass 2 is a powerful bass Synthesizer for macOS and Windows. Update 1.0.4 is a free release for existing users that adds numerous new features.

First, you can explore all the beloved Albino 3 filters in SubBoomBass 2 now, giving you tons of ways to shape your bass sounds. It includes: Silk lowpass (2, 24), highpass, and bandpass, and 12dB and 24dB Cream lowpass, highpass, bandpass.

Then, you can work with a new unison chord mode with various premapped chords: major, fifth, sus 4, sus 2, major added 9, major 6, and more.

According to Rob Papen, the update also introduces an improved string algorithm and a free mode option. It is off by default for a steadier sound/presets.

New FXs
Also, the FX section has got another feature boost, featuring five new effects algorithms: NoiseGate, Shift, TalkBox, Albino Flanger, Albino Fhase. There are also major additions to the modulation engines.

First, you can work with an impressive set of new modulation sources: 2 alternate, 2 unipolar alternate, 3 alternate, 3 unipolar alternate, 4 alternate, 4 unipolar alternate, and CC3. That’s not all.

It also includes the following new modulation sources: inverse envelope, free inverse envelope 1, free inverse envelope 2, unipolar filter LFO, unipolar free LFO, sequencer tune, unipolar noise, input, and output.

Secondly, you can get new modulation destinations, including oscillator 1 phase and oscillator 2 phase.

To round off this impressive free update, Rob Papen also includes over 100 new presets: 01 Sequence Presets 04 (25 new ) 02 Sub-Bass Presets 03 (New bank with 27 new presets) 03 Bass Presets 07 (65 new)

An impressive update for the SubBoomBass 2 Synthesizer plugin. Thanks, Rob!

Rob Papen SubBoomBass 2 v1.0.4 is now available as a free update for existing users via the official website.

Source: https://synthanatomy.com/2025/12/ro...gui-karplus-strong-string-synthesis-more.html