The Sub 37 offers the fantastic variable waveshape oscillators, giving you triangle, sawtooth, rectangle and pulse waveshapes, as well as everything in between.

However, the oscillators don’t offer a simple sine wave. In deed, a sine wave features no harmonic content except for the fundamental note, so it does not make much sense in subtractive synthesis. Still, it does have a very soft and pleasant character that I personally really like. Here’s a way to create a sine on the Sub 37.