Thermionic Culture have released a new version of the Mastering valve compressor, the Mastering Plus. The classic hand built point to point wired soft knee compressor has a compression ratio from 1.2:1 to 5:1 at 15dB of compression and uses Mullard and Siemens valves and custom Sowter transformers.
Following on from the success of the previous models including the red face anniversary limited edition the new model features new switched and stepped rotary controls for quick and easy recall. The input gain features a 24 position ELMA, a 11 position ELMA for the Threshold, 6 position ALPHA attack and release and a 31 position OMEG stepped output pot. The same side chain filter section as previous versions has been retained.
A significant difference to the previous M/C versions is the the Mastering Plus now has the same input gain structure as the standard model Phoenix, enabling the mastering Plus to cope with tracking and mixing of individual instruments and vocals that may require high amounts of compression.
Other new features include a standby switch which is provided to extend valve and capacitor life. When in ‘standby’ the HT current through the valves is only 50% of the normal value. The meter zero level adjusters have now been brought to the front panel to avoid having to take the unit out of the rack and so making calibration easier.
Thermionic Culture available from:
Kazbar Systems Pro Audio Sales