ULT-SOUND Introduces DS-4M ProMuzer

Short Demo: Polyphonic Mode video upload by Freaky Tweaky

"I tried out the ULT-SOUND DS-4M ProMuzer, which is scheduled to be released in June.

The newly added Polyphonic Mode assigns voices using the round robin method, just like a typical polysynth, so by varying the settings of each OSC appropriately, you can enjoy kaleidoscope-like changes even with simple phrases. ✨ (Granular, Reverse, and Reverb are added in the DAW as post-effects)"

Check in with dealers on the right for upcoming availability. Note this is the ProMuzer version. A few non ProMuzer versions have shown up on Reverb in previous posts here.






"Introducing the Ult-Sound DS-4M ProMuzer, a modern reissue of Toyo Gakki's DS-4 analog drum synthesizer, available in a limited edition of only 50 units. This exclusive release features a sleek new design with a custom white front panel and black lettering, blending vintage charm with modern aesthetics. The DS-4M ProMuzer faithfully reproduces the second iteration of the ULT-SOUND DS-4 - while incorporating innovative upgrades to meet contemporary music production needs.

Some features of the original DS-4 have been retained in this reissue, and we highlight them here for those unfamiliar with the original design:

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Ult Sound DS-4M

Note: Auction links are affiliate links for which the site may be compensated.

via this Reverb listing

"Amazing reissue of a rare classic. I bought it a few months ago, somewhat on impulse, and it hasn't found its way into my setup. It is in immaculate, like-new condition without a single blemish and everything works as new. I'm very particular about my gear and always handle it carefully and take good care of it. The unit has always been stored, covered when not in use, in a smoke/pet free climate controlled studio.

This thing is built like a tank (very solid and heavy), has great connectivity options and, most importantly, sounds incredible!"

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Ult Sound DS-4M - Toyo Gakki DS-4 Reissue Drum Synth

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via this listing

"Perfect condition Ult Sound DS-4M - Toyo Gakki DS-4 Reissue Analog Drum Synth."

You can find demos of the DS-4M in previuos posts here.

ULTSOUND DS-1 as a synth voice

video upload by Korablove Roman

"ULT-SOUND DS-1 is the eurorack version of a single voice from the DS-4M. DS-1 consists of all the possibilities of all 3 versions of the DS-4 machines made by Toyo Gakki. Additional functions include LFO speed and amount controls, LFO RETRIGGER, SWEEP amount, MIX between VCO and NOISE sources (yes, all 4 noise types are included), MIX control and EXTERNAL INPUT. There are 2 versions of panels: "classic" black and white and 'custom' yellow blue. Pre-order is open here: www.ult-sound.com/product-page/ult-sound-ds-1"

ULT-SOUND DS-1 FM modulation and percussion sounds

video upload by Korablove Roman

"ULT-SOUND DS-1 is the eurorack version of a single voice from the DS-4M. DS-1 consists of all the possibilities of all 3 versions of the DS-4 machines made by Toyo Gakki. Additional functions include LFO speed and amount controls, LFO RETRIGGER, SWEEP amount, MIX between VCO and NOISE sources (yes, all 4 noise types are included), MIX control and EXTERNAL INPUT. There are 2 versions of panels: "classic" black and white and 'custom' yellow blue.
Pre-order is open here: www.ult-sound.com/product-page/ult-sound-ds-1"

Ult-Sound DS-4M Drum Synthesizer

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via this listing

Additional Perfect Circuit listings

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Ult-Sound DS4 - Serviced

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via this listing

"Up for sale is a really nice example Ult Sound DS4 percussion synth.

It's been recently serviced and thoroughly tested by a tech familiar with these; everything checks out as it should.

The unit is in nice clean condition overall, with only minor blemishes. Its as tidy as it looks in the photographs. "

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ULT-SOUND DS-1 different kinds of noise demonstration

video upload by Korablove Roman

"DS-1 is a eurorack version of ULT_SOUND DS-4M. DS-1 includes the features of all DS-4 versions. In addition the following features have been added: MIX between VCO and NOISE sources, TRIANGLE in vco part, EXTERNAL INPUT in NOISE sources (all 4 percussion kinds of noise are also there), LFO SPEED and LEVEL controls, LFO RETRIGGER, SWEEP level control. Will be available in two versions: classic black/white and “custom” yellow/blue. Shipping will start in January 2025. Manual and more info will come soon..."

New ULT-SOUND DS-4M Drum Synth Demos

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.

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ULT SOUND DS-4m with 2 x Korg SQ-1

video upload by Nightlife Electronics

"The Ult Sound DS-4 is a legendary (and rare!) analog drum synthesizer produced in late 70's Japan, made famous by the likes of YMO and other Japanese synth pop artist of the era. Now available once again with the addition of midi and CV/Gate per channel in the form of the DS-4m.

Here it is being sequenced by a pair of Korg SQ-1 step sequencers for some poly rhythmic pitch and gate control.

The Ult Sound DS-4m is available now at Nightlife Electronics https://nightlife-electronics.com/col..."

ULT SOUND DS-4m Bamboo Garden


"Here we have the reissue Ult Sound DS-4m proving that it is more than just a percussion machine! Being fed melodic, polyrhythmic sequences from a pair of Korg SQ-1 step sequencers. Manual adjustment of panel parameters like octave, FM amount and decay keep the pattern interesting.

The Ult Sound DS-4m is available now at Nightlife Electronics! https://nightlife-electronics.com/col..."

Toyo Gakki DS-2 DS2 Ult-Sound vintage drums

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via this listing

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Toyo Gakki Ult Sound Analog Drum Synth DS-4 1970s w/ Billy Cobham & TAMA Sticker

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via this listing

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Ult-Sound DS-4M - Quick Demo 01 | Low-Gain Plays

video upload by LowGainElectronics

"The brand new Ult-Sound DS-4M arrived today and I needed to check it out asap! Running dry into my Roland Go-Mix Pro. Sequenced by Arturia KeyStepPro."

Ult-Sound DS-4M - Quick Demo 02 | Low-Gain Plays

ULT-SOUND DS-4M : first jam

video upload by Freaky Tweaky

"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.

While faithfully reproducing the circuit configuration of the original (early model), CV/GATE input terminals for each channel have been added to allow for cooperation with modular synths, etc., making it even more comfortable to use as a production tool."

ULT Sound DS-4 × Roland TR-707

video upload by Rec Gear Demos

aka Telly's Gear Depot On Reverb

Ult Sound DS4 Four Voice Analogue Percussion Synth

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via this auction

Use this code on checkout for $30 off orders of $100 or more from now until December 31: MATRIX30

"It's been recently serviced: this included a power supply overhaul, voice tune, switches cleaned, potentiometers lubricated, sockets cleaned."

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ULT Sound DS-4, with pads and cables

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via this auction

"Amazing analog drum machine in its rare version, the beautiful custom ULT DS-4 with the 4 trigger pads included."

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Tokyo Gakki Japan ULT-SOUND DS-4 Drum Synthesizer

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via this auction

"Toyo Gakki Japan alto sound DS-4 YMO ULT-SOUND 4 channel drum synthesizer"

"There are no missing switches or buttons on the board.

The power lamp is also lit and energization has been confirmed.

Tom x 4

Connected with the attached shield, sounding and energization confirmed.

At that time shield x4 color black shield x1

Energization has been confirmed."

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Toyo Gakki Japan ULT-SOUND DS-4 Vintage 4 channel drum synth

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via this auction

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ULT-SOUND DS-4 Drum Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"A drum synthesizer released by Toyo Gakki in the 1980s. By incorporating it in a drum set, it is possible to produce sounds like that band that represents the 80's to very effective sounds. Made in 2009."

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