Looking for 303 sounds?


Sound Examples












Extra patches

Ronny Pries Extra Pack

AudioRealism Bass Line Pro (ABL Pro)

What would a 303 on steroids be like? We answered that question using a mock-up by our friend AlphaDog and adding some more stuff like patch cables and polyphony, and it turned out to be a very different beast indeed. While ABL Pro has it's roots in sequenced synth sounds it also excels at pads and leads and is something of a hidden gem for many producers. We guarantee you nothing else sounds quite like ABL Pro.

Download now from the Products page!

The filter is based in the 202 filter which sports self oscillating resonance, accurate tuning and a great range (from sub bass to above upper hearing limit). This filter can howl!

CV Routing

Most modules send or accept control voltage (CV) which means the signal path can be modified in real time without any glitches in the audio. Sequencer has CV Gate/Note output and can be used when playing ABL Pro in Note mode, monophonic- or polyphonically. 

Advanced Pattern Randomizer

The pattern randomizer lets you create patterns in different keys and scales using different densities of notes, accents, slides and gates.


Configuration Screen

The configuration screen allows you to customize your ABL Pro to your liking. It supports three low pass filter selections (303-emulated and the standard 24dB 202 simulation plus an oversampled variant for even less aliasing).



System Requirements

Windows XP/Vista/7, P4 1,5 GHz or better, VST 2.4 compliant host

Mac OS X 10.4, Intel, Audio Units or VST 2.4 compliant host


High quality aliasing-free oscillators and filters

500+ preset patches and sequences

Can be used to process external signals, for example thru the VCF

32-voice polyphonic

Audio rate modulation

Plus many of the features from ABL2 such as:

Internal step sequencer

Full MIDI CC control with learning function

Two MIDI modes (Pattern or Note)

Sample accurate sync to VST and AU hosts

And much more!


English V1.0


Visit our forums for support or contact us directly






(c) 2003-2013 audiorealism