video upload by Korablove Roman
Available at Nightlife Electronics
You can find additional demos in previous posts here.


"The DS-4 drum synth, which was released by Toyo Gakki in the 1980s under the "ULT--SOUND" brand and was used by the drummers of Japan's leading techno-pop group, has been revived in modern times. An inspiration for many modern drum machines, the DS-4 is heavily sought after for it's immediacy and ease of programming. As a 45 year old drum synthesizer, finding an original for a reasonable price without needing a complete restoration is not the easiest task. This is why the DS-4M project was brought into existence. Using all original schematics as well as original components, many of which are incredibly rare to find, the DS-4M is meticulously built by hand using thru-hole components. Physically, it is built like a tank to last for decades of enjoyment and creativity. What's more, modern MIDI and CV/GATE inputs have been added along with individual outputs and a high quality, balanced MAIN output ready to take the legacy of the Ultimate Sound DS-4 far into the future. The new functions also add an exciting twist: using the SINE or SQUARE waveforms, DS-4M also works as an up to 4 voice synthesizer, or any combination of drums/percussion with synths with accurate tuning as well"
Pics via https://www.ult-sound.com.