VU950 FX vs PolyQuad

VU950 FX is an AUv3 effect plug-in built around a gritty 12-bit DSP model, designed to bring classic sampler-style tone shaping directly into your iOS music host. At its core, VU950 FX combines sample-rate reduction, 12-bit DAC character, input drive, bass and presence coloration, noise, and an anti-aliasing filter that naturally closes as the sample rate goes down. You can keep that authentic behavior, or edit the AA Filter manually to fine-tune how dark, crunchy, clean, or aliased the sound becomes. Use RATE to set the modeled sample rate, from cleaner high-bandwidth processing to darker low-rate texture. Use FILTER to shape the main tone filter from wide open to heavily rolled off. Use CHANNELS to choose whether the left or right input channel becomes the focused mono source. The jog wheel edits the active RATE or FILTER page. ON/+ and OFF/- switch the selected channel when CHANNELS mode is active. The top knobs give you direct control over AA Filter, Input Drive, and Output Gain, so you can push the DSP model harder, tame the final level, or dial in just the right amount of anti-aliasing response. VU950 FX is made for fast AUv3 workflows: load it in your favorite compatible host, automate the parameters, and turn clean audio into controlled 12-bit character in seconds.

PolyQuad is one synthesizer built from four complete voices — and the instrument is what they make together. Each of the four channels is a full analog-style voice: its own oscillator, its own resonant filter, its own envelopes, its own amplifier, its own place in the stereo field. Design each channel for a role — a sub, a body, a sparkle, a slow swell — then play them as one. Three voice modes decide how they combine. UNI stacks all four on every note for one massive layered sound. POLY spreads chords across the channels, so every note of a chord lands on its own instrument. 2×2 plays note pairs on matched couples. Add glide, retrigger control and detune spread on top. THE CHANNELS - Four oscillators: triangle, sawtooth, pulse with PWM, sine — per channel, with octave and fine tune - Four resonant filters with envelope amount and FM depth per channel - Two envelopes per channel (filter and amp), each with three time ranges from snappy to minutes-long - Per-channel VCA with velocity amount and curve, level, pan, AUX send, solo and mute - Per-channel oscilloscope displays, and keys that light up with the voice that took them MOTION - Four LFOs with five shapes, routed to pitch, pulse width, filter FM, resonance, amplitude, pan or send - Each channel decides how much modulation to accept — one LFO can wobble one channel and leave another still - One effect unit — reverb, delay, chorus, phaser, drive — fed by per-channel AUX sends with a master return PRESETS - 160 factory presets in eight categories: Pads, Keys, Strings, Bass, Lead, Drone, Texture, Percussion - Every preset uses the four channels as four different instruments — layered stacks, rotating timbres, per-drum kits - Channel presets: capture one channel's design and load it into any channel of any patch - Your presets are plain JSON files in the Files app — back them up, share them, drop new ones in IN THE STUDIO - AUv3 instrument for AUM, Drambo, Logic Pro, GarageBand and other hosts - MIDI 2.0 with 16-bit velocity; MIDI 1.0 hosts are translated automatically - Every knob on the panel is a host parameter — full automation and session recall - Standalone app with keyboard, so it plays on its own too No account, no ads, no tracking, no network. Your sounds stay on your device.