VAPolyQuad vs GSDSP Quantum Filter Usage & Stats
VAPolyQuad is a virtual analog polyphonic synthesizer for iPhone, iPad and Mac. It features 8 voice synthesizer, effects, sequencer and audio visualization tools. It operates as a stand alone or as an AudioUnit Extension (AUv3). Stand Alone supports Ableton Link, MIDI and audio file export.
Single voice of the synthesizer features four oscillators, two mixers, two resonant high pass filters, two resonant low pass filters, two amplifiers, four ADSR envelopes and four LFOs. The oscillators features continuously variable wave shape and wide variety of modulation. The filters are modeled on the Sallen-Key filter circuit and cascaded OTA filter circuit for classic analog sound. The Effects include delay, chorus, flanger, reverb, eq and compressor. The sequencer features piano roll and parameter automation editor to program 16 bar pattern per clip. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac.
- Main Features -
Virtual analog 8 voice polyphonic synthesizer.
Four oscillators per voice.
Flexible audio signal and control signal routing.
Keyboard Control Routing
Two type of Lowpass filter, cascaded OTA model and Sallen-key model.
Support MIDI 2.0
New User Interface built by SwiftUI for improved performance.
Built-in Sequencer. 16 bar patterns per clip. Total 8 clips. Piano Roll and Parameter automation.
Support Audio Unit Extension (AUv3)
Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms.
Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC)
Support Ableton Link, Bluetooth MIDI, MIDI In / Out.
370 Factory Presets
- System Requirements -
A13 Fusion or above is recommended.
AudioUnit Extension (AUv3) requires host application which support AudioUnit Extension.
AudioUnit Extension is supported by Apple Logic and Apple Garage Band on iOS and macOS. For any other DAW, it depends on the application and some of them don’t support AudioUnit Extension.
- Apple App Store
- Paid
- Music
Store Rank
- -
Resonant Analog Modelled Filters: Experience the warmth and precision of high-quality state-of-the-art filters. No cramping, no glitching, no digital artefacts - just rich tones and powerful resonance. Extreme settings can even push the filters into self-oscillation, just like the legendary hardware.
11 Filter Types: Utilize a wide array of filter modes including Lowpass, Highpass, Bandpass, Notch, LowShelf, HighShelf, Bell and Ladder style Lowpass (available as 1, 2, 3 or 4 pole configuration).
Flexible Routing: Combine up to 3 filters in series or 2 filters in parallel for a total of over 2.000 possible combinations!
Built for Modulation: Designed to handle ultra-fast changes, making it perfect for dynamic sound environments. Great care has been taken to avoid digital artefacts and provide you with a smooth, analog feel.
Stereo and Dual Mono Configuration: Easily switch between stereo or dual mono, dynamically shape the stereo image any way you can possibly imagine.
Advanced Modulation Capabilities: Seamlessly integrate with your favorite synths using our new ADSR and AR modulators responding to MIDI inputs, adding another layer of control and creativity to your workflow.
Multiple Outputs: If supported by the host you can tap off each filter’s output as a separate output.
Ready to transform your sound? Experience the power of Quantum Filter today and take your music production to the next level!
Quantum Filter is an AUv3 audio effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more.
A Desktop version is also available for Windows and macOS (VST3 / AU / AAX).
More information here: https://gs-dsp.com/products
- Apple App Store
- Paid
- Music
Store Rank
- -
VAPolyQuad VS. 
GSDSP Quantum FilterMarch 20, 2025