AudioThing Valve Filter CM Freeware GUI

Valve Filter CM

Multimode resonant filter with vintage valve emulation

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Valve Filter CM is divided into two main stages – yep, you guessed it: a Valve and a Filter. The valve drive stage is based upon the famous Telefunken ECC83 tube, and a large valve lamp in the plugin’s centre lights up blue when activated. The filter section is based upon Moog’s classic 24db (four-pole) ladder filter design. The Valve and Filter stages can either be used in isolation or combined together, giving you the ability to add a touch (or a lot!) of crunch and grit to a sound, then smoothly filter the results.


Crunchy valve drive stage based upon the famous Telefunken ECC83 tube
Smooth 24-db, 4-pole low-pass filter based upon the classic Moog ladder design
Cutoff frequency range of 42Hz to 16kHz
Optional 10dB filter resonance setting for wild filter effects
Formats: VST, AU, and AAX (32/64bit)
Platforms: OSX, Windows

How to get ValveFilter CM

Buy Computer Music magazine issue 207 (CM207) and you can download ValveFilter CM right away.

If you like ValveFilter CM, take a look at its bigger brother, Valve Filter VF-1. Its Drive stage can be switched between Triode and Pentode modes, and features a Bias control to alter the tube stage’s behaviour. Its multimode filter is switchable between low-pass and high-pass variants, and also features a variable resonance parameter of between 0 and 20dB.

Minimal Requirements    

Windows XP SP2 or later / OSX 10.6.8 or later
Intel Core 2 Duo 2GHz or equivalent
2 GB RAM / 500 MB HD
Screen resolution: 1024×768
VST2, AU, or AAX 32-bit or 64-bit host