VST3 · AU PLUGIN

SM-3A

Optical Compressor / Limiter

Smooth, musical leveling with a warm,
vintage character.

$29.90

$59.90

INSTANT DOWNLOAD · 3 DEVICES

What is on the panel

Every control does one clear thing.

COMPRESS OR LIMIT

Compress for smooth, gentle leveling. Limit for a firmer, tighter grip on peaks.

GAIN + PEAK REDUCTION

Peak Reduction sets how hard it works. Gain brings the level back up afterwards.

COLOR

A subtle tube-style harmonic, from perfectly clean at zero to warm and rich at full.

HI FREQ

Shapes what the compressor hears. Turn it down to react more to sibilance.

MIX + TRIM

Mix blends dry and compressed signal. Trim matches output level from -18 to +18 dB.

ANALOG 50 / 60 HZ

A faint mains hum, like real hardware. Choose 50 Hz, 60 Hz, or OFF for silence.

SM-3A optical compressor plugin interface

Dial it in by ear

Turn up Peak Reduction until the gain reduction meter shows the amount of leveling you want, then use Gain to bring the level back. Compress mode keeps it smooth, Limit mode catches peaks harder.

Blend in the dry signal with Mix for parallel compression on a single track. Add Color for extra warmth, and use Trim to match the output to the original, so you judge the sound and not the loudness.

System Requirements

WINDOWS

Windows 10 or 11, 64-bit
Intel or AMD x64 processor
VST3-compatible host

MAC

macOS 11 Big Sur or later
Intel or Apple silicon
VST3 or Audio Unit host

ALL PLATFORMS

4 GB RAM
200 MB free disk space
1280 x 720 screen or larger

Get SM-3A

One licence includes all formats and can be activated on up to 3 of your own devices.

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