Ensoniq ESQ1

“Vintage Ensoniq ESQ-1 Digital Wave Synthesizer, Sequencer. This synth is in very good shape. Lots of great sounds on board. Includes one External Program cartridge. We did some basic testing and all appears to be working. We do not know if the battery is original or was replaced at any point in the past, but at this point it’s not an issue. Includes AC cable. As with any vintage electronic instrument, sold as-is. ”
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Ensoniq ESQ1

” Working Ensoniq ESQ-1 digital wave/analog polyphonic synthesizer.
-Nice cosmetics for a nearly-40 year-old keyboard (see the pics). The keys themselves have yellowed, as happens on some plastics as they age. I’ve heard that the keys can be retrobright’ed to restore them to white (I’ll leave that to the buyer).
-All switches & sliders on front panel fully working
-Pitch & mod wheels working as expected.
-New battery
-Basic midi in & out functionality verified
-Sequencer & sustain foot switch functionality verified (foot switch is not included)

I played it, going through the patches and all sounds appropriate. All the keys trigger nicely with appropriate velocity.
I recorded a short sequence and it recorded & played back as expected.” Click here to visit listing on eBay

Ensoniq ESQ1

“in good used working condition, has signs of age and use but not bad. this is for the synthesizer and power cord only. no cartridges/cables /instructions/stand or any other accessories. shows low battery voltage low when powered on.” Click here to search for synths on eBay

Ensoniq ESQ1

“in good used working condition, has signs of age and use but not bad. this is for the synthesizer and power cord only. no cartridges/cables /instructions/stand or any other accessories. shows low battery voltage low when powered on.” Click here to search for synths on eBay

Ensoniq ESQ1

“Ensoniq ESQ-1 Wave Synthesizer- Partially Working. One Octave NON-FUNCTIONAL. Condition is “Used”. This is the METAL case ESQ-1. Rom upgraded to 3.50. New backup battery installed November 2020. Includes 1 sound cartridge. As an extra bonus some labels were installed on the keys so you can navigate your way around those tricky notes.

There’s nothing better than a metal keyboard case because it’s tough and can take a beating so if you’re using this on the road you’ll be pleased with the durability.

The factory screws used to secure the top and keyboard have been replaced and half are missing. One of the top screw sockets has broke (see photo). As mentioned in the headline one octave of the keys are non-functional. This is the second octave section. Except for those 13 notes the keyboard works just fine so if you are a right handed soloist, you will be a very happy with the sounds.” Click here to search for synths on eBay

Ensoniq ESQ1

“Works well.
Occasionally flashes a battery warning which is remedied by replacing or re-seating the calculator battery under the lid and it works as normal.
All other functions and keys etc work correctly. Includes a sound cartridge for storing patches.
In great cosmetic condition.

This is also the nicer (in my opinion) black metal version, not the later plastic one.” Click here to search for synths on eBay

Ensoniq ESQ1

“Ensoniq ESQ-1 wave synthesizer. This unit was made in 1988. Analog/digital hybrid design combines digital waveforms and analog filters. Features include onboard sequencer, MIDI, multitimbral, ring mod, 61 keys, velocity sensitive, eight-note polyphonic. Power cable included, plus accessories.

Comes with the very rare Ensoniq CVP-1 volume pedal. Ordinary volume pedals do not work with this synthesizer. It requires this unique Ensoniq pedal, which is harder to find than the synth itself.

Also includes two cartridges. One is a ROM card with preset patches that cannot be overwritten. The other is a RAM card that can store your own patches. I currently have the RAM card and synth’s internal memory filled with third party, analog-style patches. The synth’s original factory preset patches can be easily found online and downloaded via MIDI.

Overall beautiful condition with only light wear. The only notable cosmetic flaw is a hole on the underside of one key (see picture). That has been there since I bought the synth in 2016 and it has never caused a problem or had any effect on the feel of the key while playing. The key is fully functional and responds just like all the other keys. It would be simple to install a replacement key sometime in the future when it is time to change the battery. The synth will probably be due for a battery change in the next year or so. That would be a good time to also replace the key.”
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Ensoniq ESQ1

“Ensoniq ESQ-1, Hybrid 80’s Synthesizer w/Instruction Manual, **two broken keys**. Condition is Used but fully functional. Broken keys are still intact but do not trigger noise and are silent. The silent keys are the ones marked “X” in the picture above. Synth, owner manual, power chord, and vol. 3 Voice – 80 sound bank cartridge. Shipped with UPS Ground.” Click here to search for synths on eBay

Ensoniq ESQ1 Project Machine

“Ensoniq ESQ-1 Synthesizer Keyboard with 13 sound preset cartridges, as-is

Keyboard powers on with bright display and makes sound.

Keys are intermittent. Some sound, some don’t, some work sometimes. They seem to get better as I play it. Perhaps it will fix itself over time (but don’t count on that). The buttons seem to operate (though I didn’t test every one). The volume and data sliders work. Cartridges that I tried load their sounds but, again, I can’t guarantee that all cartridges work. (You should use some electronics contact spray – like DeOxit D5 – on the cartridge contacts.)

This unit was in storage for years and likely suffered from less-than-ideal environmental conditions. Consider it in need of maintenance. As I say, it basically works but needs TLC. That’s why it’s sold as “For parts, not working” and as-is, as-found.” Click here to search for synths on eBay

Ensoniq ESQ1

“Vintage Ensoniq ESQ-1 Synthesizer Condition is Used.

Comes with:
-Sustain pedal
-Data Cassette
-Sequence Sheets
-Power Cable

Modified to accept two AAs instead of a hard soldered battery. Works perfectly fine. All functions tested.” Click here to search for synths on eBay

Ensoniq ESQ1

“Bidding is for both a Vintage ENSONIQ ESQ-1 Digital Wave Synthesizer with Analog Filters and a padded “Road Case.” Condition is Used. Fully functioning. “Battery Warning” (for saving settings) message lights – Battery can be replaced by a user with soldering iron, braid and solder, a screw driver, allan wrench and battery. I’d do it myself if I was going to keep it. Stored in the foam-lined case so there is virtually no dust inside. Keys are yellowed from age and one has a tiny burn mark but ALL WORK.

Comes with Power Cord and “Hybrid” Road Case” Click here to search for synths on eBay

Ensoniq ESQ1

“You are also welcome to visit and try it out in person! I consider it to be partially to mostly working, I did try a number of the built in sounds and they seem to be working fine but some of the keys produce less sound and sometimes very little to no sound so I think they’ll need some attention. Battery warning comes on when you turn it on so it will need that replaced. I did not test any of the other various memory or other functions, only a basic test. Metal case in good shape, a lot of the lettering on the cabinet is quite worn but in general I’d say it’s in good condition or better cosmetically, no damage or signs of abuse. 2 screws are missing on the front. Comes with a nice fitted soft case, stand, original foot pedal, power cord, USB to MIDI cable and the 2 cartridges (which are untested) pictured, Music Pack and Q Spectrum. If the winning bidder does not want some/any of these accessories ” Click here to search for synths on eBay

Ensoniq ESQ1

“KEYS DONT WORK CONSISTENTLY, with a keybed clean up it MAY work good as new. All the other buttons and faders seem to work great.

ENSONIQ ESQ-1 Digital Wave Synthesizer Vintage Analog . Condition is For parts or not working.” Click here to search for synths on eBay

Ensoniq ESQ1

“2 sound cartridges included. Project synth I never got around to working on. Turns on and the sound is great. Low battery warning is on. I will include new battery for new owner to install. Few keys do not emit sound when pressed, needs keybed cleaning. 1 C key repaired with glue (as pictured), works fine. I do have a new C key I will include for new buyer to install. ENSONIQ ESQ-1 Digital Wave Synthesizer Vintage Analog!. Condition is For parts or not working. This is a project. No returns. ”
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Ensoniq ESQ1

“This keyboard is not far from total restoration at a minimum of cost. I got this from a guy in the early 90s after mine died. But by this time, we were all getting into the latest breakthrough…recording with DAWs (however primitive) with ‘unlimited’ tracks vs. 8. And this ESQ faded away. I don’t recall using it that much. But that’s how I got it.
ABOUT A YEAR AGO: I wanted to get it cleaned up and functioning again, so I took it to my 40-year-long-repair man….who is quite elderly now. He suffered a heart condition while he had it and never got around to fixing it. Many months later, when I picked it up, I did not realize most of the screws were not replaced. So I had to deal with that issue today, when posting. (See below for those kinds of details). I know there are several things wrong with this device, so I’ll walk you through everything you need to know:

WHAT YOU NEED TO KNOW:
1. UNIT POWERS ON, and basically ALL* of the buttons function as expected. Pictures show various sections of this instrument selected so you can see this. (See #4 for *—one button may not be working)
2. There is no audio coming out of the L/R output jacks at this time…though I never remembered that being an issue, so something could be lose, or upon being moved around a few times over the past 30 years, simply maybe have broken something.
3. This sequences had the expansion memory card installed, which alone, was worth $, and some folks still look for those today!
That was installing hardware, which was very reliable. I can’t vouch for the condition of the card, but I would assume it works.
4. * The CARTRIDGE section (or the cartridge button, or the cartridge itself?) is not reading the cartridge that you see inserted in the pics. I would assume that after all these years, that cartridge may be bad. But if that were true, I remember (?) that the ESQ would at least ‘see’ the cartridge and give an error message, etc. So I’m assuming the problem could be that section of the circuit board also. Or the BUTTON that selects the cartridge is not doing it’s job. That would be the easiest, cheapest fix. But I don’t know what’s causing this.
5. In one picture you can see some pink substance on the black output/foot-pedal jacks. This was always on there when I got it, and I have no clue as to what it is or why someone put that on there, but it never affected anything when I played the instrument…it was just fine.
6. In order to ship the keyboard and not have movement of the actual physical keyboard section itself, you can see in two pictures that I stuffed plastic bags in there to safely wedge the keyboard so it would not move. I have no screw to replace the ones that were missing when I picked up the instrument from the repair shop.
7. You will see that there are approximately 3-4 yellowish keys on the lower left hand side of the keyboard. I had these replaced a long time ago, and the guy had no matches, so we used 3 keys off of some other ensoniq product/compatible product and those keys were different color-wise… but I didn’t mind that, so notice the three off white keys.
8. The memory back up battery is low. These are extremely cheap and available.

THIS IS FOR SOMEONE WHO WOULD LIKE TO FIX IT UP,
or knows how to themselves; or for someone who wants to part it out.
But like I said, I think this unit is not far from workable restoration, but I’m not a repair guy. I say this because it was working fine at one point, and it seems to me like the odd things that go out here and there are normal things that also went out when they were brand new and taking them to the repair shop.”
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