Plugin interface — screenshot pending
Saturation

Radiator

Soundtoys

Where to get itAvailable from Soundtoyssoundtoys.com

Radiator is a tube saturation plugin modeled after the Altec 1567A Mixer Amplifier, a classic 1960s tube mixer used at Motown Studios. It delivers warm, colored saturation through two cascaded tube stages with a 2-band EQ (Bass and Treble), plus selectable Mic/Line impedance modes and a built-in wet/dry mix control for parallel processing—all calibrated to match the sonic and saturation characteristics of the original hardware.

Written from the manual and checked against it. How we check

Key Features

01Two cascaded tube saturation stages with Input and Output controls
022-band EQ with Bass and Treble controls (±10 dB each)
03Mic/Line switch modeling 150ohm vs 600ohm impedance response
04Clean/Noisy switch to toggle circuit noise (−68 dBu average or suppressed)
05Wet/Dry Mix control for parallel processing (0–100%)
06Heat Meter calibrated to original 1567A VU meter settings
07Faithful recreation of original harmonic saturation and frequency response characteristics

Things to Try

  • 01Use the Input control to drive the first tube saturation stage; saturation increases along with output level
  • 02Adjust the Output control post-EQ to add secondary saturation and compensate for Input gain increases
  • 03Select Mic mode for frequency-dependent response (150ohm impedance) or Line mode for flatter response (600ohm) depending on source character
  • 04Toggle the Clean/Noisy switch: Noisy mode adds ≈68 dBu of circuit noise for authentic hardware character, while Clean mode suppresses it entirely

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Radiator by Soundtoys | Plugin Library