SKU: 97029257909

Simmons SDS7

Sale price$1799.55 Regular price$1999.50
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Description

Simmons SDS7Simmons SDS7 For Sale. This unit has been meticulously refurbished and is working like new again and better than the rest. This unit is on hold for a customer but we have another we can prepare for sale email us. In additional to sorting out any problems, we paid our tech to make this unit better than others on the market, a process that took a whopping 30 hours of skilled vintage synth tech time, plus parts costs. Fully disassembled and cleaned

Simmons SDS7 For Sale. This unit has been meticulously refurbished and is working like new again and better than the rest. 

This unit is on hold for a customer but we have another we can prepare for sale - email us.

In additional to sorting out any problems, we paid our tech to make this unit better than others on the market, a process that took a whopping 30 hours of skilled vintage synth tech time, plus parts costs.

Fully disassembled and cleaned inside and out
Replaced electrolytic capacitors in power supply
Resoldered regulators
Replaced all RAM (6166 x 10)
Installed new battery 
Reloaded sounds off cartridge to first 80 kit banks
Cleaned all switch contacts
Replaced many IC sockets
There was a broken XLR connector, so we had to painstakingly remove the original rivets to remove the circuit board, replace the connector, and then Instal new rivets for 13 female XLR connectors - a time consuming PITA
Cleaned and lubed all pots

This unit is intentionally priced at what we believe to be top market value because of the big investment of time, love and money to make it better than others you may find. 

7089x

Ah, if you dont know this one I almost feel like I shouldnt tell you about it. It's one of our secret weapons. Its a drum synth with 5 cards in it, each containing a drum synthesizer of its own. It can be expanded to 12 cards but gets really hot when you do that, so you probably wouldnt want more than 5 or 6. Each card contains an EPROM chip which has a lo-fi sample on it. If you have an eprom burner (like the Simmons EPB we sometimes sell) or hunt around for sounds, you can basically put any samples in there, as long as they arent too long for the chips. The real strength of this machine lies not in the sample playback but in the synthesizer section. This section is CEM based (CEM chips were used in old Sequential and Oberheim analog synths, among others). The programmer section on the right side stores drum kits which are basically sound parameter settings for all card slots. The memory is battery backed and stored on power down. Each of these drum synthesizers has its own 1/4" trigger input. I drive mine from an ARP Sequencer, but you can use other trigger sources like other analog sequencers, old drum machines or maybe even audio signals.  And lets not forget drum pads - this is what Simmons had in mind when they designed this unit. The pad inputs are XLR jacks separate from the sequencer ins. Did I mention each of the synths can be controlled by a CV signal rather than a gate? Using it this way, each channel will actually play pitches like a normal synth. The same applies when you hook pads up - the pad sensitivity can modulate the pitch of the synth sound. Cool. Each channel slot has its own audio output and theres a mix out as well. So, how does it sound?  INCREDIBLE! This is my favorite machine for techno / electro / industrial synth percussion. Each synth has a built in oscillator that can actually be frequency modulated (FM) by the built in LFO (which will run at higher frequencies than your typical LFOs). Add bend, a resonant filter, noise source, click setting, filter envelope and decay, as well as controls for the built in sample and you've got a really cool drum synth. This box is great for blips, bleeps, cracks and thuds. If you're into programming and want some cool analog type drum sounds with personality, this box is invaluable.

The top video below shows the unit for sale, using an ARP Sequencer to play just 2 out of its channels. The other videos show previously sold units.



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SKU: 97029257909

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Ronald s crutcher
Birmingham, US
★★★★★ 5
Indestructible
The dogs love them !
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Reviewed in the United States on May 1, 2026
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DM
Massapequa, US
★★★★★ 5
Very good quality
They are firm enough for dogs to have them in their mouth but not to hard. They bounce nice and more then once. I will purchase again if my dogs wear theirs out
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Reviewed in the United States on May 6, 2026
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Heather Jacobs
Natrona Heights, US
★★★★★ 5
dogs favorite!
our dog can't get enough of these. we have to buy them in packs like this since they end up in places unknown. they don't get torn up and will last forever!
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Reviewed in the United States on May 12, 2026
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Jan Marie
Chelsea, US
★★★★★ 3
Very lightweight and not good for fetching
These balls are very lightweight. They feel like styrofoam. I try to use my Chuckit Chucker to throw them but they don't go very far and the wind will drift them in another direction as they are so light weight. Then, when my dog's saliva covers the ball, the moisture creates a suction in the launcher and the ball won't exit the chucker at all no matter how much force I put into the launch attempt. I guess they might be good for chewers, but not for throwing, if your dog likes to fetch. They would be good for throwing in the house as they won't damage anything.
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Reviewed in the United States on April 17, 2026
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Jadyn
Alexandria, US
★★★★★ 5
Shockingly impressed
I have a heeler and he destroys everything. I thought I was going to be unimpressed at first thinking these were going to be shredded everywhere, but I have yet to see him destroy these and we have had them for over a month. I definitely recommend for high energy aggressive chewers.
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Reviewed in the United States on May 26, 2026

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