ACID transforms your Novation Circuit Tracks into a modern Acid machine, designed for genres such as Classic Acid, Acid House, Techno, Detroit Techno, Acid Techno, Hard Techno and Rave genres.
Roland TB-303 behaviour emulated — with a more modern sound, yet fully capable of delivering the classic tone. Modernised and expanded.
The pack includes 128 patches in total:
96 authentic 303-style Acid sounds plus 32 additional sounds, including a strong selection of polyphonic material such as chords and classic genre sounds to expand your productions beyond classic monophonic Acid lines.
All patches respond to velocity where appropriate, allowing expressive control and dynamic performances directly from the Circuit Tracks pads.
The 303-style patches are programmed to recreate the behaviour and response of the original machine — from timeless Acid House to harder Acid Techno and underground rave territories — featuring velocity-based accent behaviour, glide response, LFO modulation for evolving movement, and powerful modern distortion algorithms with delay and reverb send effects.
Completed with 64 drum samples (House, Techno, Hard Techno, 707, 808, 909 and more), ACID becomes a complete production toolkit — effectively turning Circuit Tracks into a purpose-built Acid production machine.
LONG DESCRIPTION
ACID is a complete Acid production toolkit built exclusively for Novation Circuit Tracks.
More than just a sound pack, ACID redefines Circuit Tracks as a dedicated Acid groovebox — optimized for sequencing, performance and real-time modulation of authentic 303-style basslines.
From classic Chicago Acid House grooves to Detroit-flavoured Acid Techno and aggressive warehouse rave energy, ACID covers the full evolution of the acid sound.
At its core are 96 carefully crafted 303-style patches designed to closely emulate the architecture, behavior and musical response of the original TB-303 — while expanding its power through Circuit Tracks’ modern synthesis engine and distortion options.
All patches respond to velocity where appropriate, allowing expressive control and dynamic performances directly from the Circuit Tracks pads.
The 303-style patches are programmed to recreate the behaviour and response of the original machine — from timeless Acid House to harder Acid Techno and underground rave territories — featuring velocity-based accent behaviour, glide response, LFO modulation for evolving movement, and powerful modern distortion algorithms with delay and reverb send effects.
96 Authentic 303-Style Patches
These patches are programmed to behave like a true acid instrument.
The velocity of each step directly affects the filter envelope amount, allowing you to recreate the famous 303 accent behavior simply by increasing velocity on selected steps in your sequence. The result is that characteristic “acid scream” on accented notes.
Macro-controlled glide perfectly imitates the iconic 303 portamento, delivering the sliding transitions that define classic acid lines — easily triggered by increasing the gate length in the sequencer and overlapping consecutive notes.
Using Circuit Tracks’ multiple distortion algorithms and internal EQ shaping, the sound palette ranges from:
• Classic Acid
• Chicago House-style Acid
• Detroit-influenced Acid Techno
• Hard Acid Techno
• Rave-oriented Acid energy
While the original hardware had no distortion stage, ACID fully exploits Circuit’s modern drive engines — giving you both vintage character and contemporary aggression.
32 Polyphonic Classic House, Techno & Rave Sounds
To complete the arsenal, ACID includes 32 additional patches, with a strong selection of polyphonic material designed to expand your productions beyond classic monophonic acid lines.
These sounds are inspired by classic House and Rave culture and include:
• House pianos
• Organ stabs
• Hoover-style leads
• Unison saw stacks
• Classic rave synths
• Chord stabs
They are designed to perfectly complement the 303-style basslines and help you build full tracks, not just sequences.
# 19 Included Projects:
ACID also includes 19 ready-to-play projects packed with tons of acid basslines, drum grooves and arrangement ideas.
These projects explore a wide range of acid styles and rhythms, including:
• Classic Acid House
• Detroit Acid Techno
• Hard Acid Techno
• Rave-influenced acid tracks
They provide instant inspiration, practical sequencing examples and a fast way to explore the full potential of the pack.
64 Drum Samples
ACID also includes 64 drum samples covering:
• House drums
• Techno & Hard Techno drums
• Classic 707, 808 and 909 sounds
• Hats & percussion
• Acid vocals
Everything you need to move from classic Acid House grooves to harder warehouse techno rhythms.
Completed with these drums and the full patch library, ACID becomes a complete production toolkit — effectively turning Circuit Tracks into a purpose-built Acid production machine.
MACRO CONTROL STRUCTURE
All patches follow a clear, performance-focused macro layout.
(303-style patches and polyphonic patches differ where needed.)
303-Style Patches (96 sounds)
Macro 1 – Wave Morph (Saw ↔ Square style variation)
Macro 2 – Filter Modulation (LFO to filter)
• First half: modulation depth
• Second half: LFO rate
Macro 3 – Filter Decay
Macro 4 – Filter Envelope Depth (Bipolar: negative to positive modulation)
Macro 5 – Filter Cutoff
Macro 6 – Resonance
Macro 7 – Glide (classic 303-style portamento)
Macro 8 – Distortion / Overdrive
Polyphonic Patches (32 sounds)
Macro 1 – Oscillator Character (Detune or oscillator shaping)
Macro 2 – Filter or Pitch Modulation
Macro 3 – Amp Release
Macro 4 – Filter Envelope Depth (Bipolar)
Macro 5 – Filter Cutoff
Macro 6 – Resonance
Macro 7 – Portamento
Macro 8 – Distortion
ACID brings the classic 303 control philosophy into Circuit Tracks — expanded, modernized and performance-ready.
From Chicago House to Detroit Techno, from classic Acid to underground rave aggression, this pack delivers a true modern 303 experience — transforming Circuit Tracks into a fully-fledged Acid groovebox built for club, warehouse and live performance.
