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RubyTube simulates tube preamps for those that canít forget. If you are missing that subtle sparkling and compression that you get when using ancient audio equipment, RubyTube might be something for you. And like many other good things in life, RubyTube is free.

RubyTube is a real time, digital tube amp simulator. RubyTube simulates the saturation effect that can be found in audio equipment with vacuum tubes. This effect is usually hardly noticable but it is responsible for the classic tube sound. Sometimes its just a sparkle on the voice and a slight compression of drums and bass that makes the difference between a neutral recording and a warm and full sounding song.

Simulating tube sound with non-tube equipment is difficult but it is possible. RubyTube is not the first such simulator but compared to other tube simulators and distortion units, RubyTube has a very high resolution and a well-balanced spectrum of harmonic distortion.

RubyTube is available for VST Windows and can be downloaded from our download page.


"I just wanted to let you know how much I like RubyTube. I almost accidently 'fell' over it, downloaded it, tested it and I have to say... it's AWESOME !!!. [...] It looks great, it feels great and it sounds terrific !!!"†(Jake Paland)

"I've tried your RubyTube plugin yesterday, admittedly, a little bit sceptical about another tube emulator. [...] I must say that yours blew my head! (in the best sense :-) Very good sound! I like the very gradual onset of distortion and the fact that the algorithm that you've used here, very closely resembles "real tube distortion"†(Rere Rerrinson)