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| Make |
Yamaha |
| Model |
CS15 w/ Don Solaris mods & Yam case |
| Description |
Here’s Yamaha’s classic duophonic (with a little effort) synthesizer with Don Solaris’ mods to facilitate chaining the VCFs for something closer to a 24db/octave response. There’s also a mod to the LFO’s rate control to get better use of it at audio rates - a welcome addition to the CS-15’s already pleasing sound palette. All told, the mods make a good sounding, but somewhat limited instrument rather less limited!
It’s in great condition for a synth of this vintage, and was serviced a few years ago by the same techs who performed the mods. The sliders don’t have a “buttery smooth” glide, but are silent, as are the pots. I hear a very, very faint crosstalk between filters while the serial mod is not engaged, and I can’t say whether it’s due to the modification or, as with my old CS30, it’s part of the synth. It’s not noticeable in practical use, but if you’re actively looking for behaviors like this, you might hear it. It’s also like a 50 year old keyboard, so…
I would rather have the single-voice CS-30 with its modulation possibilities, but I also just don’t have the space anymore. Please find the details of the mods here:
https://greatsynthesizers.com/wp/wp-content/uploads/2019/07/cs-15_mods_DonSolaris.pdf
Will ship from Berlin, Germany in its Yamaha-branded hard case. |
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| Age |
n/a |
| Weight |
n/a |
| Condition |
Very good |
| Location |
Germany |
| Vat |
Not from a VAT-registered business. But VAT / duty may be due if importing from outside your trade bloc. |
| Quantity |
1 item is available from the owner |
| Options |
User manual : No |
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Service manual : No |
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First owner : No |
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Original boxes : No |
| Plug type |
Europe standard plug |
| Voltage type |
Internal 110 to 220-240V switchable |
| Status |
Item is still available |
| Sale type |
The item is on the auction rooms |
| Ending on |
09/11/2025 |
| Category |
Synthesizer (monophonic) |
| Serial number |
3198 |
| Sphere reference |
# 30236 |
| Statistics |
Created on : 28/10/2025 |
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Changed on : 28/10/2025 |
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Published on : (Not published) |
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Displayed : 406 time(s) by members and guests |
| Safety |
All electrical items sold in VEMIA are deemed to be trade sales. No warranty of electrical safety is given or implied. Many items are vintage and would not pass current electrical safety standards. It is the responsibility of the buyer to ensure that items are safe to use in their future environment - if necessary by using the services of a professional. |
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Prices and conditions  |
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The following section gives you the prices as well as shipment and payment conditions associated with the item. Payment is always requested in GBP. Converted price is shown for information and converted with Sphere standard currency rate.
Shipment and Payment links gives you access to an extended description of our rating :
| Start price |
990 EUR |
| Converted price (1) |
862.21 GBP |
| Shipment |
International or local shipment to pay |
| Packing costs |
0 GBP |
| Payment |
Full pre payment needed |
| Auction bid step |
20 GBP |
| Auction highest bid |
0 GBP |
| Converted highest bid |
0 GBP |
| Leader or winner |
*None |
| (1) Currency conversion |
Note that conversion rates were last adjusted on 10th October 2025 at 14:22 CET. They are there to give you a rough guide to the bid price in your currency. Please check for a more up-to-date conversion at https://www.x-rates.com/calculator.html. The bid price will be the actual price in pounds (GBP) at the moment the auction closes. This will be roughly converted to your currency for your information.
For technical reasons, we are unable to update the conversion from GBP to Euro during the auction, although it may change at any time. If you are in the euro zone please check the current rate at https://www.x-rates.com/calculator.html
Payments must always be in GBP. For more info please see the FAQ about exchange rates.https://spheremusic.com/Winfaq.asp?Question=91. |
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