2XB303 Acid Bass Loop Maker 4.1

The 2XB303 synthesizer offers a versatile platform for creating electro melodies and basslines with a distinctive character reminiscent of classic acid techno and house sounds. Its interface facilitates both step sequencing and real-time control, allowing users to trigger and transpose sequences as well as manipulate a synth pad layer dynamically. The device enables recording and exporting audio loops for further production use.

Inspired by the acid house movement, this iOS-exclusive application echoes the functionality of the legendary Rebirth software, serving as a modern tribute to the TB-303 clone popular a decade ago. A comprehensive video tutorial is available to guide users through its features, showcasing the ease of producing complex sequences with minimal effort.

Designed to accommodate various electronic music styles including electro, house, techno, and EDM, 2XB303 employs standard step programming similar to hardware sequencers like the Roland SH-101. Its built-in pad layer follows pitch movements, allowing for transpositions and sequence triggering via MIDI support. Users can generate sequences randomly, shuffle notes, or modify individual notes easily.

The app supports seamless audio capture, enabling export to platforms such as AudioShare, Audio-Copy, email, or iTunes Shared Folder. It includes advanced routing options through Audiobus 3, Ableton Link, and Inter-App Audio (IAA), ensuring compatibility within multi-app workflows.

Parameter tweaking features include controls for cut-off frequency, decay envelope modulation, glide, and accentuation—adjustable via intuitive tap or swipe gestures that allow precise fine-tuning of effects. The sound design extends beyond traditional basslines, incorporating harmonic variations, noise generators, LFO modulation, glide speed controls, and robust effects to develop dynamic electronic textures.

Historically compared to a Cyclone TT-303 synthesizer for its classic acid growl, the sound engine was further refined to facilitate complex sound shaping. Additional options include harmonic enhancers and effects designed to expand sonic possibilities beyond conventional 303 basslines, making it suitable for producers in electro, drum and bass, acid, techno, house, and broader EDM genres.

The LIVE CONTROL system provides innovative strategies for live performance: transposing sequences while playing via keyboard controls; instant switching between stored patterns; and maintaining lock settings for consistent effects application. These features enable fluid live manipulation of sounds and sequences.

The MOD section features automatic LFO control over filter cut-off and pitch parameters. Users can apply subtle detuning or chaotic pitch variations through adjustable LFO speed settings for added sonic interest.

Global effects include overdrive and compression with adjustable thresholds and ratios. Echo effects synchronize with tempo feedback settings for atmospheric delay effects. All configurations can be saved when not actively playing to preserve creative states.

Synchronization options encompass Ableton Link for precise timing across compatible apps; MIDI clock synchronization with external hardware or virtual instruments—either as master or slave; and MIDI note data transmission on multiple channels. Virtual MIDI input remains active continuously for flexible routing scenarios.

Audio recording is straightforward: users can define fixed loop lengths (defaulting to 32 steps) within settings. Sampling can be activated via the Capture function, which toggles sampling mode with flashing indicator. Playback allows quick listening at any point during production.

Support for Audiobus 3 and IAA ensures that audio can be routed into other DAWs or recording environments like Garageband. Sequence timing is maintained across apps for multi-track production workflows. When saving configurations, users select destinations; visual indicators assist in managing storage slots effectively.