via this auction
"In 1986 Ensoniq released the ESQ-1 synthesizer at a list of $1,395. The ESQ-1 became a big seller and continued the company’s good fortune they had with the Mirage. Due to this success, Ensoniq released the ESQ-M, a rack mount of the ESQ-1 which had all the features of the ESQ-1 except for the sequencer, 5 octave keyboard , and the 80 character display. However the ESQ-M allowed you to set individual volumes for each track (patch) of a mix.
The ESQ-M features eight voice polyphony and is eight part multitimbral with dynamic voice allocation. It can also do basic splits and layers which can be saved as part of a patch and split key is designated by the user. (Very impressive for a synth that was released in 86/87.) The unit features no on-board effects but does allow you program the pan position of a voice and the position may be modulated any modulation source. Also ingenious (other manufacturers please note) is that while you are playing a voice you may change the voice and the original will continue to sound and any new keys will reflected the newly selected voice. While using the unit in full multitimbral operation I did not notice audible delays in the machine’s performance.











































