Ensoniq SQ-80 O.S 1.8


The 1.8HW OS is identical to the standard 1.8 OS, with the addition of 180 waveform selections.
Among these 'hidden waveforms' there are many 'glitch' type of sounds and
many selections change waveforms every octave.

Check current firmware:

Hold [Record] and press [Master] while powering and

the software version will be displayed on screen.


You need the swap the eprom chips in socket U16 and U20.

KPC EPROM version 1.5 IS NOT INCLUDED which may be needed for older units, but can be provided.

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
  • SQ-80

Reverb Protection

Simple Returns, Secure Transactions, Human Support

Learn more

Secure Checkout


Roma, Italy
Joined Reverb:2018

Reverb Gives

Your purchases help youth music programs get the gear they need to make music.

Carbon-Offset Shipping

Your purchases also help protect forests, including trees traditionally used to make instruments.

Oops, looks like you forgot something. Please check the fields highlighted in red.