The SPL Iron v2 Black

The SPL Iron v2 Black is a legendary tube compressor in a modern edition.

The SPL Iron v2 Black from SPL combines the sound of legendary vintage tube compressors with the advantages of innovative 120V technology. The result is smooth, melodic, musical compression, inspired by compressors from the radio era, but with modern flexibility and adaptation to the needs of mastering studios.

The key principle of the IRON is based on the management of the cutoff of parallel connected tubes with different slope characteristics. Depending on the input signal amplitude, one or the other tube takes over the limiting/compression function. This achieves an incredibly balanced and musical sound with very precise and flexible parameter adjustment.

Input and output level settings in 2 dB steps in the range of ±12 dB allow for precise management of the compression ratio and adjustment of the overall signal level. Attack and recovery are adjustable in 6 steps from fast to slow values, allowing for perfect adaptation to the musical material. The compression threshold has 41 values ​​for more precise adjustment.

The possibilities of shaping the compression characteristic are no less flexible. Choosing from 6 types of rectifier diodes (Germanium, silicon, LED) allows you to significantly influence the "character" of the compression. Additionally, 4 filter presets are available for selective frequency compression.

The mode of combining channels with a common control signal ensures a coherent stereo sound. Automatic bypass allows for an objective evaluation of the processing effect.

After the compressor path, the signal can be additionally enriched with AirBass or Tape Roll-Off filters to optimize its frequency response.

Thanks to its unique tube design and an incredible set of precise adjustment possibilities, the SPL Iron v2 Black offers extremely smooth, musical and expressive high-quality compression, ideally suited for mastering tasks and final sound processing. This is a solution that must be found in professional mastering studios.

Key Features:
- Principle of operation based on adjustable tube cut-off offset
- Parallel use of tubes with steep and mild characteristics
- Balanced sound and great control of settings
- Input level adjustment from -12 to +12 dB in 2 dB steps
- Output level adjustment from -12 to +12 dB in 2 dB steps
- 6 attack stages from fast to slow
- 6 recovery stages from fast to slow
- Continuous adjustment of compression threshold with 41 values
- 6 characteristics of the control rectifier
- 4 filter presets for selective frequency compression
- Tube offset adjustment: low, medium, high
- Channel linking mode with common control
- Automatic bypass for objective evaluation of processing
- AirBass and Tape Roll-Off filters for final finishing

Specifications:
- Maximum input and output gain 32.5 dBu
- Input impedance 20 kΩ
- Output impedance 75 Ω
- Frequency range (-3 dB) 10 Hz to 40 kHz
- Common mode rejection (0 dBu, 1 kHz) > 80 dBu
- Crosstalk (1 kHz) -108 dBu
- THD (+10 dBu) 0.002 %
- Noise (A-weighted) -98 dBu
- Dimensions 482 x 177 x 300 mm
- Weight 11 kg