We have recently added a Tube-Tech multi-band SMC-2BM to our mastering set up. Supposedly the only 'all-tube' multiband compressor in the world, the difference really does shine through. This unit delivers pure warmth through it's circuitry and brings a quality musical colouring to all that passes through it. It is an especially useful tool for projects that have been produced almost entirely in a digital domain where the digital 'edge' needs to be controlled with an injection of 'vintage' analogue texture.

Another reason to make sure you call Blue Pro for you next set of masters!

Product Description:
Switchable crossover points ensure precise control with all three bands of opto-compression. Independent band specific Threshold, Ratio, Attack, Release & Gain parameters make the SMC 2BM as flexible as it is accurate. 
Gain controls are fitted with 12 position gold plated switches with 1dB/step. Threshold, Ratio, Attack, Release and Balance controls are fitted with potentiometers with 31 detents.

The TUBE-TECH SMC 2BM Stereo Multiband Compressor features three independent optical stereo compressors. The signal is divided into three bands (Low, Mid & High) by 6 dB/octave x-over networks with 12 selectable frequencies: 60 – 1200 Hz for Low/Mid band and 6 selectable frequencies: 1,2 – 6,0 kHz for the Mid/High band. 

The design of the x-over networks optimizes the summing of all three bands, resulting in a flat frequency response (within +/-0,25 dB), when the gain controls for each band are set at the same level. The three compressors feature Threshold, Ratio, Attack, Release and Gain and a display showing gain reduction. Master levels are set with Output Gain and Balance controls. 

Both Input and Output are balanced and have fully floating transformers with a static screen. The power supply and the sidechain circuit is based on a solid state circuit. With the exception of the output stage all DC voltages are stabilised.

(Product Description Source: tube-tech.com)