Tos Nieuwenhuizen

All of SUNN O))) shows are based on 4 things Maximum Volume, Atmosphere, Sonic Artifacts (Distortion and Feedback), and LOW FREQUECIES!!!! Tos plays a key role in this since he is both the amp and synth guru for the band helping create the unique tone that SUNN O)))'s amps are known (even though they are already unique SUNN amps). Tos use the MOOG Rogue which is a monophonic synthesizer used mainly as a bass synth with real grit to it which Tos uses to it's full potential. Because "Maximum Volume yields Maximum Results".

The Moog Taurus is a well known Bass Synthesizer used by bands such as Rush, Pink Floyd, Yngwie Malmsteen, etc. The Moog Taurus II has been used by SUNN O))) many times in their live and studio performances before and is absolutely incredible. Tos Niewenhuizen uses the Moog Taurus along with Stephen O'Malley.Both the Taurus I and II units have a "low note priority" keying circuit. The amazing thing about the Taurus II that benefits SUNN O))) is that in the event that the player depresses two notes, the instruments will only sound the lowest pitched note, similar to other monophonic synthesizers. The Taurus I oscillators produced only sawtooth waves; the Taurus II oscillators produced sawtooth, square and preconfigured pulse waves. Meaning that this synth is meant to answer the question: "How low can you go?".