Quad

The deal

$25 at KVR Marketplace (down from $49), a 48% discount. The sale runs through September 18, 2026.

What it is

Quad is a 16-voice synthesizer from Rob Papen, originally built as a Rack Extension for Reason and now available as a standalone VST/AU/AAX plugin. Each oscillator combines phase distortion and waveshaping with an XY-pad for real-time tone sculpting, routed through a choice of 36 filter types. It ships with over 750 presets covering everything from lush pads to aggressive leads and basses.

Who it's for

Sound designers and electronic producers who want deep, hands-on synthesis control without stacking multiple plugins to get there.

Key features

• An 8-slot modulation matrix with 58 sources and 165 destinations for deep modulation routing
• A built-in arpeggiator with a 1-16 step sequencer and 11 playback modes
• Two series effects units covering chorus, ensemble, flanger, phaser, widener, reverb, and delay
• Unison and legato play modes with up to 6 voices per note for thicker, wider sounds