Polyspectral MBC
The deal
$9.99 at KVR Marketplace (down from $49.99). No coupon needed, price is already discounted at checkout. Deal runs through August 25, 2026.
What it is
Polyspectral MBC is a multiband compressor built for transparent, mastering-grade dynamics control. It splits audio into multiple frequency bands and processes each with minimum-phase filters, so it keeps latency negligible and stays clean enough for tracking in real time, not just mixing after the fact. A real-time spectral display shows exactly how each band's frequency and dynamics are being shaped as you work.
Who it's for
Mixing and mastering engineers who need precise multiband control without coloring the source material, plus post-production and live sound engineers who need low-latency processing they can trust during a session.
Key features
- Runs as VST3, AAX, and AU on Windows and Mac with native Apple Silicon support
- Low CPU usage from optimized signal processing keeps sessions light even with multiple instances
- Minimum-phase filters deliver negligible latency for real-time tracking
- Real-time spectral display visualizes frequency and dynamics changes across bands
- Supports standard speaker layouts as well as Ambisonic formats
