- 8 TF1 digital FM tone generator modules in a rack-mountable system
- Each TF1 contains a 6-operator FM tone generator with 32 RAM voice memories
- Each module contains 32 function memories corresponding to the 32 voice memories
- Independent MIDI IN and THRU terminals for each module
- Common MIDI IN/OUT/THRU terminals
- Independent balanced XLR audio outputs from each module
- All voice and performance memories can be programmed via an external 6-operator DX synthesizer
- TX-216 is a two-module version of the TX-816
- Individual TF1 modules were available for expansion of the TX-216
