Although its a 8 algorithm 4 operator fm synth like dx9 dx21 dx27 dx100 tx81z could use one of 8 different waveforms for each operator while the older 4 operator synths and also the old 6 operator synths like dx1 dx5 dx7 used only a sine wave for their operators.
Cheap rack synth.
Compared to a typical keyboard synthesizer or synth module which offers a fixed number of oscillators filters modulation sources and other elements a eurorack modular.
Superb sample based synth with physical modeling and analog modeling.
Rackmount synths for sale on reverb.
Modular synthesizers allow you to create your own custom synthesizer piece by piece then patch those elements together in different ways to create unique sounds.
Losing the keys allows easier mix and matching when creating in your studio or playing on stage.
Tx81z is a dx11 in rack not a dx100.
Certainly not cheap unless compared to a schmidt they are around 400 500.
Taking the power of a traditional synthesizer and placing it into a much more versatile format rackmount synths are one of the most versatile options in sculpting a unique synth sound.