SPL Iron v2 Black

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SPL Iron v2 Black

SPL

Iron v2 Black

4.9 Expert Rating

Product Info

Article Number: 557684
Brand: SPL
Model: Iron v2 Black
Price: $6,597.80

* Prices may vary. Check retailer for current pricing and availability.

The SPL Iron v2 Black is a serious mastering tool, delivering a warm, characterful compression that's noticeably different from solid-state options. It's designed for engineers who want to impart a vintage tube vibe to their masters, particularly in genres like jazz, classical, and audiophile recordings where subtle nuance is key. Be prepared for a commitment to 120V power, though – it's not for everyone.

Product Description

  • SPL Iron v2 Black
  • 2-Channel Mastering Compressor
  • Variable-bias tube compressor
  • Parallel connection of two different tubes - 2x Wathen CryoTone 12AX7-WCM long plate tubes and 2x 12AU7 tubes
  • Mu-Metal iron transformer
  • Forward controlled Vactrol opto-resistor limiter circuit in the control path
  • 6 Different rectifier circuits
  • Balanced side-chain inserts with send and return XLR sockets
  • Optimised side-chain EQ filter curves
  • Detented potentiometers
  • Link mode
  • Downstream passive 120 V equaliser with two presets
  • 120 V operating voltage
  • Auto bypass mode
  • Frequency range: 10 - 40
  • 000 Hz
  • 2 VU meters
  • Dimensions (W x H x D): 482 x 177 x 300 mm
  • Weight: 11 kg
  • Colour: Black
PROS
  • • Wathen CryoTone tubes deliver a uniquely musical, harmonically rich compression.
  • • Mu-Metal transformer provides exceptional isolation and low noise floor.
  • • Variable bias allows for subtle warmth to aggressive saturation tailoring.
  • • Detented pots offer precise recall and repeatable settings for mastering.
CONS
  • • The 120V requirement necessitates a dedicated power supply or voltage converter.
  • • Limited versatility compared to more flexible, multi-mode compressors.
  • • The substantial weight makes rack mounting and transport challenging.

Product Video

Key Features

Type Variable-Bias Tube Compressor
Channels 2
Controls 6 Rectifier Circuits, Sidechain EQ Filter, Link Mode, Detented Potentiometers, Downstream Equalizer
Connections XLR (Balanced Inserts, Send/Return), 120V Power Input
Metering 2x VU Meters
Weight 11 kg

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Frequently Asked Questions

Adjusting the bias alters the tube's operating point, allowing you to introduce more or less harmonic distortion and saturation – from clean to gritty.
It’s a purely passive EQ circuit, utilizing fixed resistor networks for predictable and transparent tonal shaping after compression.
The optimized filter curves are designed for gentle, musical smoothing, avoiding harshness often found with more aggressive sidechain EQs.

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