SPL IRON Mastering Compressor Demo/Open Box  From SPL

Parallel dual-tube circuit Compressor/Limiter featuring six rectifier settings, four-preset sidechain EQ (or external), and two passive EQ presets.

SPL

SPL Iron Mastering Compressor - Teaser

The Iron Mastering compressor combines not only the sonic virtues of legendary vintage tube compressors with the advantages of the High Dynamic 120V operating voltage in a single unit. It is also perfect for the needs of modern mastering studios and sets a new benchmark in terms of tube compressor technology, with the innovative implementation of a parallel dual-tube circuit.

  • Signal Chain
    • SPL IRON Mastering Compressor

Manufacturer's Description from SPL

The IRON mastering compressor is not a copy of a classic unit, but rather an original concept in itself. Our goal was to conceive a compressor that provided a pleasant, melodic-sounding, transparent compression, inspired on the vintage compressors of the radio era. And we wanted it to be versatile enough to adapt perfectly to the needs of modern mastering studios.

Thus, the IRON combines not only the sonic virtues of legendary vintage tube compressors with the advantages of the High Dynamic 120 V operating voltage in a single unit. It also sets a new benchmark in terms of tube compressor technology, with the innovative implementation of a parallel dual-tube circuit.

 

  • Variable bias tube compressor
  • Parallel dual tube circuit
  • Tube selection and pairing with Weigl Roe Test
  • Specially conceived Mu-Metal iron transformers
  • Feed-forward resistive vactrol-opto-isolator
  • Six different Rectifier settings available
  • Sidechain that allows you to choose between Off, four sidechain-filter presets or an external sidechain signal.
  • All functions can be adjusted via switches or, in the case of the Threshold, with a detented potentiometer
  • In Link mode, the Threshold, Tube Bias, Attack, Release, and Rectifier parameters, as well as the Sidechain EQs, are controlled with the right side (channel 2) of the unit.
  • Additional passive 120V equalizer with two presets
  • High Dynamic 120V operating voltage
  • Auto-Bypass mode
  • Made in Germany
SPL

About Manufacturer

Sound Performance Labs! Full Range of Analog, Tube, and Digital rack gear with an innovative twist. With their most famous transient designer product, SPL has quickly become a household name in both the recording and live sound arenas.

Specifications

Frequency Range     10Hz - 40kHz

CMRR (@ 0dBu)       1kHz: > 80dB / 10kHz: > 65dB

THD & N (@ 0dBu)     > 82dB

Noise (A-weighted)   - 98dBu

Total Harmonic Distortion

  • 0.06 % @ 1kHz/-10 dBu
  • 0.01 % @ 1kHz/0 dBu
  • 0.002% @ 1kHz/+10 dBu

Input Impedance        20 kΩ

Max. Input Level       + 32.5dBu

Output Impedance    < 50Ω

Max. Output Level     + 32.5dBu

Power Consumption  max 45W

Fuses

  • 230 V/50 Hz: 1 Amp
  • 115 V/60 Hz: 2 Amp

Dimensions  482 x 177 x 311.5 mm / 19" x 7" x 12.25"

Weight         11 kg / 24.25 lb

Downloads

Action

Name

Description

SPL IRON User Manual

User Manual