# Synthesis Technology E300 Ultra VCO — resale value

Source: JunkPal price guide — https://junkpal.ai/products/synthesis-technology-e300-ultra-vco-keyboards-and-synths-reverb

**Synthesis Technology E300 Ultra VCO** is worth about **$599**, based on real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/synthesis-technology-e300-ultra-vco-keyboards-and-synths-reverb

## Value

| Condition | Value (USD) |
| --- | --- |
| Used | $599 |

Values are medians of real closed eBay sales, updated 2026-07-25. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DSynthesis%2520Technology%2520E300%2520Ultra%2520VCO%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DSynthesis%2520Technology%2520E300%2520Ultra%2520VCO%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

eBay links are affiliate links: JunkPal may earn a commission at no cost to you.

## Details

| Field | Value |
| --- | --- |
| Brand | Synthesis Technology |
| Model | E300 Ultra VCO |
| Used range | $575 – $599 |
| Sample size | 2 listings |
| Category | Keyboards and Synths |

## Synthesis Technology E300 Ultra VCO resale value

The used Synthesis Technology E300 Ultra VCO has a median Reverb asking price of **$599**, ranging from $575 to $599 across 2 current listings.

### What drives the price

For a used synth, vintage analog vs digital, working keys/sliders, polyphony, and original PSU move the price most. Vintage and limited runs command a premium; player-grade and modified examples sell for less.

## FAQ

**What is the current used price range for the E300 Ultra VCO?**

The used range for the Synthesis Technology E300 Ultra VCO is between $575 and $599.

**Are there many E300 Ultra VCOs available right now?**

There are currently two listings available for the Synthesis Technology E300 Ultra VCO on JunkPal.

**Is this a good time to buy the E300 Ultra VCO?**

With two listings available in the $575-$599 range, this presents a solid opportunity to acquire the VCO.

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Full price guide: https://junkpal.ai/products/synthesis-technology-e300-ultra-vco-keyboards-and-synths-reverb
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-07-25, based on real sold listings (junkpal.ai)"