BASTL Instruments Kastle V1.5 Mini Modular Synthesizer
keyboard
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Why this number?
The typical used price is the median of 8 used sales observed in the last 90 days, with outliers removed and the figure rounded. An observed sale is often the last asking price rather than a confirmed hammer price.
| Typical used price | €85 | median sold, rounded |
| Most sold between | €80–€110 | 25th to 75th percentile, same window |
| Window | last 90 days | the tightest of 90 days, 6 months and 24 months with 8 used sales |
| Sample | 8 used sales | ok sample |
| 90-day change | +15% | vs the 90 days before |
| Time to sell | — | only counted from listings we watch start to finish; not enough yet |
| Live asks | €129 | typical ask across 7 listings, 52% above typical used |
| Outliers | dropped | beyond 10× the product’s own median: bundles, parts, typos |
| All-time | €75 | 388 used sales, 2017–2026; not used for deals |
| Sales on record | 413 | all-time, all platforms |
Typical prices are rounded (to 5 / 10 / 50 / 100 by size, in whichever currency you read); asks and the chart are exact. As of 19 October 2026. Full method, including what each badge means
For sale right now
The best-priced as cards, a row of them; every other ad as a line, by ask. Each ask is the seller’s own number; the platform’s mark opens the listing. Each one says when we last confirmed it at its source: the price and availability are from that visit, so check the marketplace before you go.
Reverb
1 more live · €166–€166 · typical ask €129
Price history
What it sold for, quarter by quarter, since Oct 2017: 384 sales in quarters with at least three, and the bars along the floor show how many each quarter. The shaded band is where the middle half of sales landed.
Recent sales by listing date
8 used sales · last 90 days · middle half €80–€110 · ok
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 5 Oct 2026 | €91$102 as sold | excellent |  United States | Reverb | Details |
| 10 Sept 2026 | €245$275 as sold | excellent | United States | Reverb | Details |
| 2 Aug 2026 | €150$175 as sold | very good | United States | Reverb | Details |
| 26 Jul 2026 | €73$85 as sold | very good | United States | Reverb | Details |
| 3 Jul 2026 | €69$80 as sold | good | United States | Reverb | Details |
A date is the day the ad went up. Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026. A price is what the listing last asked, converted at that day’s rate.
Show the last 50 of 413 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 1 Sept 2026 | €98$110 as sold | excellent | United States | Reverb | Details |
| 20 Aug 2026 | €78$87 as sold | excellent | United States | Reverb | Details |
| 25 Jul 2026 | €82$95 as sold | excellent | United States | Reverb | Details |
| 22 Jul 2026 | €79$92 as sold | excellent | United States | Reverb | Details |
| 11 Jul 2026 | €99$115 as sold | excellent | United States | Reverb | Details |
| 24 Jun 2026 | €69$80 as sold | excellent | United States | Reverb | Details |
| 20 Jun 2026 | €99$115 as sold | excellent | United States | Reverb | Details |
| 20 Jun 2026 | €90$105 as sold | excellent | United States | Reverb | Details |
| 14 Jun 2026 | €82$95 as sold | excellent | United States | Reverb | Details |
| 10 Jun 2026 | €69$80 as sold | excellent | United States | Reverb | Details |
| 2 Jun 2026 | €57$66 as sold | good | United States | Reverb | Details |
| 21 May 2026 | €86$100 as sold | excellent | United States | Reverb | Details |
| 19 May 2026 | €64$75 as sold | very good | United States | Reverb | Details |
| 18 Apr 2026 | €67$78 as sold | very good | United States | Reverb | Details |
| 13 Mar 2026 | €145$169 as sold | excellent | United States | Reverb | Details |
| 23 Feb 2026 | €76$85 as sold | very good | United States | Reverb | Details |
| 15 Feb 2026 | €56$65 as sold | very good | United States | Reverb | Details |
| 9 Feb 2026 | €54$63 as sold | excellent | United States | Reverb | Details |
| 6 Feb 2026 | €94$109 as sold | excellent |   France | Reverb | Details |
| 5 Feb 2026 | €77$90 as sold | excellent | United States | Reverb | Details |
| 5 Feb 2026 | €77$90 as sold | excellent | United States | Reverb | Details |
| 1 Feb 2026 | €137$159 as sold | excellent | United States | Reverb | Details |
| 30 Jan 2026 | €103$120 as sold | excellent |  Canada | Reverb | Details |
| 26 Jan 2026 | €112$130 as sold | excellent |  Spain | Reverb | Details |
| 20 Jan 2026 | €129$150 as sold | mint |  Japan | Reverb | Details |
| 11 Jan 2026 | €79$92 as sold | excellent |  United Kingdom | Reverb | Details |
| 31 Dec 2025 | €77$90 as sold | excellent | United States | Reverb | Details |
| 11 Dec 2025 | €82$95 as sold | very good | United States | Reverb | Details |
| 9 Dec 2025 | €82$95 as sold | excellent | United States | Reverb | Details |
| 8 Dec 2025 | €56$65 as sold | excellent | United States | Reverb | Details |
| 2 Dec 2025 | €112$130 as sold | excellent | United States | Reverb | Details |
| 1 Dec 2025 | €137$160 as sold | excellent | United States | Reverb | Details |
| 1 Dec 2025 | €70$81 as sold | excellent | United States | Reverb | Details |
| 28 Nov 2025 | €86$100 as sold | excellent | United States | Reverb | Details |
| 27 Nov 2025 | €90$105 as sold | excellent | United States | Reverb | Details |
| 27 Nov 2025 | €97$113 as sold | excellent | United Kingdom | Reverb | Details |
| 11 Nov 2025 | €73$85 as sold | excellent | United States | Reverb | Details |
| 7 Nov 2025 | €95$107 as sold | mint | United States | Reverb | Details |
| 6 Nov 2025 | €86$100 as sold | mint | United States | Reverb | Details |
| 14 Oct 2025 | €129$150 as sold | excellent | United States | Reverb | Details |
| 13 Oct 2025 | €76$89 as sold | very good | United States | Reverb | Details |
| 5 Oct 2025 | €73$85 as sold | mint | Spain | Reverb | Details |
| 4 Oct 2025 | €76$88 as sold | excellent | United States | Reverb | Details |
| 4 Oct 2025 | €76$88 as sold | excellent | United States | Reverb | Details |
| 28 Sept 2025 | €129$150 as sold | mint | Canada | Reverb | Details |
A date is the day the ad went up. Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in August 2026 and October 2026. A price is what the listing last asked, converted at that day’s rate.
Cheapest live: United States €80 · 
Croatia €166 · before shipping
In one paragraph
The page's figures as one paragraph, assembled for quoting; not written by hand.
The BASTL Instruments Kastle V1.5 Mini Modular Synthesizer sells for €85 today (8 recorded sales, last 90 days; most between €80 and €110), up 13% on the €75 of the 90 days before. There are 7 listings live right now across Reverb, from €80 asking. Figures computed 19 October 2026 by Doirado from cross-platform listing data.