Kawai K4 — Synth Resale Value
Keyboards and SynthsWhat a used Kawai K4 sells for on Reverb (median of 2 recent listings).
Kawai K4 value — Used $345. Prices updated August 2026.
Live on eBay right now
Expired listings — price reference
Kawai K1 Digital Synthesizer Keyboard w/ Original Box & Power Cord – Working – M
Kawai K4 61-Key 16-Bit Digital Synthesizer with adapter and manuals - US seller
Kawai K1 K 1 Vintage Digital Keyboard Synthesizer Synth with Adapter
eBay removes ended listings after ~90 days — we keep the prices. Look up finds current listings for the same item.
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Price data verified against · 1
Item details
- Brand
- Kawai
- Make
- Kawai
- Model
- K4
- Year
- 1989
- Finishes seen
- Black
- Used range
- $330 – $345
- Sample size
- 2 listings
Kawai K4 resale value
The used Kawai K4 has a median Reverb asking price of $345, ranging from $330 to $345 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.
Price guide
What this actually trades for — sold values by condition vs. what sellers are asking today
| Condition | Value | Based on |
|---|---|---|
| Used | $345 | eBay sold comps |
| Live asking — low / typical / high | $30 / $300 / $806.82 | 20 live eBay listings ↗ |
Market check: As of August 12, 2026, 20 live eBay listings ask $30.00–$806.82 (median $300.00). Asking prices sit about 13% below the typical sold value of $345.00 — a window worth checking for buyers.
Frequently asked questions
- What is the typical resale value for a Kawai K4?
- Based on current listings, the Kawai K4 is selling in the used range of $330 to $345.
- Is the Kawai K4 still a sought-after vintage piece?
- As a 1989 model, it represents a classic vintage synth from Kawai.
- What colors are available for the Kawai K4?
- The available finish seen for this model is Black.
