The pitch is immediately legible: a small grey box, a single oscillator, one knob for one thing. Audio Damage have been building software instruments since 2002, and the AD-202 — their take on the classic single-oscillator monosynth of the early 1980s — is a product that wears its reference points on its sleeve. Saw, pulse, sub, noise into a 24 dB ladder filter, one ADSR shared between the amp and the filter, one LFO. That’s not a limitation; that’s the whole point. The machines this evokes — the Roland SH-101, the Sequential Pro-One, the Korg Mono/Poly stripped down to a single voice — sold millions of units not in spite of their simplicity but because of it.
What Audio Damage are doing with the AD-202 is more interesting than a straight recreation, though. Under that deliberate vintage panel lives a thoroughly contemporary instrument, and some of those decisions are genuinely clever while others raise questions the marketing copy glosses past.
The Voice Architecture: Familiar Structure, Modern Execution
The oscillator does what you’d expect: four footages (16′, 8′, 4′, 2′), alias-free sawtooth, two-saw pulse with manual or modulated width, and a flip-flop sub divider running one or two octaves down. Audio Damage have replicated the DC-blocking and filtering behavior of the original hardware divider chain — a detail that matters more than it sounds, because hardware sub oscillators had a characteristic rounding that pure software division often misses. Whether they’ve actually nailed that quality or approximated it remains to be tested properly, but the intention is there.
The source mixer feeds into a soft clipper before the filter, and the Pre-Filter Sat control pushes up to eight times harder into it without adding makeup gain. The practical upshot: load all four sources simultaneously and the mixer saturates the way the original did when you ran everything wide open. This is good design. It’s also the kind of thing that’s trivially easy to demonstrate in a demo video and difficult to evaluate without playing notes while turning knobs in your own session.
The 24 dB ladder filter is the core of any instrument like this. Four-pole low-pass, its own Drive control, soft clipping in the feedback path, gain compensation at high resonance. Cutoff is swept by the envelope, the LFO, keyboard tracking, and velocity — each independently. That’s textbook architecture, cleanly implemented by all accounts.
Early KVR threads flag a couple of teething issues — some zipper noise on filter cutoff automation and minor crackles on the Tilt EQ — though these are the kind of v1.0 rough edges Audio Damage typically address quickly. Their Quanta granular is a good precedent: iterative post-launch patches smoothed out similar friction fast.
The LFO Delay and Why It Actually Matters
One LFO, four shapes (triangle, square, stepped random, sample-and-hold noise), 0.1 Hz to 30 Hz or synced to host tempo. All standard. The Delay control — which ramps the LFO depth in over up to four seconds from each new gate — is the part that earns the most attention in Audio Damage’s own documentation, and they’re right to highlight it.
Vibrato that arrives after the note does is a technique every string player and woodwind player uses automatically. It is also one of the least graceful things to automate in a DAW — you can draw it in, but the timing is always slightly wrong, and any retrigger resets the curve. A hardware onset delay handles this in a way that feels organic precisely because it doesn’t require you to think about it. Set a slow triangle with a second of delay, play a held note, and the vibrato arrives on its own. Optional per-note retrigger means it behaves differently in mono vs. the poly mode discussed below.
Mono or Eight Voices: Your Pick
There’s a switch in the MODS panel that turns the AD-202 from a monosynth into an eight-voice polyphonic instrument. Equal-power panning across the stereo field, a Spread control to widen voice positions, and an Age control that randomizes per-voice drift across pitch, pulse width, cutoff, LFO rate, and mixer levels. The Age randomization is seeded fresh per instance, meaning two copies of the AD-202 in the same project are intentionally never quite the same synthesizer. For layering or doubling leads that shouldn’t sound pasted, that’s genuinely useful.
MPE, Microtuning, and the Post-VCA Section
Full MPE support with per-note pitch bend and pressure, four aftertouch destinations (oscillator mod depth, filter mod depth, filter cutoff, LFO rate), and separate smoothing on attack and release. MTS-ESP microtuning applies continuously per note and per voice, with portamento surviving a retune — the kind of implementation detail that only becomes important when you try its absence on similar instruments.
The Post-VCA section — distortion and a bipolar tilt EQ pivoting at 1 kHz — acknowledges what happens in actual practice: people were going to reach for a distortion box and a channel EQ on the mix bus anyway. Building that in keeps the processing honest and the signal path shorter.
ANR Giveaway: Win a Free License
We have two desktop licenses and five iOS licenses of Audio Damage AD-202 to give away. To enter, follow @audionewsroom on Instagram and tag a producer friend in the comments of the giveaway post — one entry per person. Winners will be announced within the week.
Pricing and Availability
Audio Damage AD-202 is available now at an early-bird price of $39 (regular $49) until September 15, 2026. No subscription, no DRM, no dongle. Perpetual license, install on every machine you own.
Format support: CLAP, VST3, AU, AAX on macOS 10.13+ (Intel and Apple Silicon); CLAP, VST3, AAX on Windows 10+; CLAP, VST3, LV2 on Ubuntu 20+; AUv3 on iOS 12+.
A fully functional demo is available with a 20-minute session timer and save disabled. The browser demo on the Audio Damage website runs the actual synthesizer voice — no install required, no sign-up — and is genuinely the fastest way to decide whether this one is for you.







Do we comment here or Instagram for the contest?
I tagged someone & entered on Instagram.
It sounds very good. I take a chance for an ios licence.
Thanks for the review. Nice app. Maybe I’ll be lucky for the IOS version : )
I got a bit confused about where to leave a comment, too. The article says to do it on Instagram, but Instagram says to do it in the article. I did both, just in case.