Lowender is a subharmonic synthesizer, reminiscent of classic analog dual-band bass enhancer circuits. While taking classic subharmonic generator circuitry as its core, the Lowender expands on the concept in several ways. First, it offers switchable frequency ranges, so that the low end frequencies generated can be selected to fit the program material. In addition to the 「Classic」 frequency range (generating subharmonics from 24-56 Hz), there are also ranges suitable for the lowest octaves of guitar and bass.