Boss Km-6a
pro_audio
Has sold for €380 over 2016–2026, across 31 used sales. Too few in the last two years for a typical price today.
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Not enough sold data for a typical price. 3 for sale, from €260.
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.
2 local pickup ads in Portugal, on Facebook Marketplace and OLX Portugal. Showing 2 local pickup ads in Portugal, on Facebook Marketplace and OLX Portugal. Local pickup near you, in Portugal: 2 ads on Facebook Marketplace and OLX Portugal.
Facebook Marketplace
OLX Portugal
eBay Germany
Price history
Every recorded sale, one point each: 31 of them, placed by the day the ad went up. Too few sales to draw a trend through them without inventing one, so the points speak for themselves. Condition is mixed, so some of the spread is a mint against a fair rather than the market moving.
Recent sales by listing date
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 23 Aug 2026 | €869$975 as sold | excellent |  United States | Reverb | Details |
| 18 Aug 2026 | €380 | good |   Germany | eBay Germany | Details |
| 6 Jun 2026 | €523$587 as sold | good |  United Kingdom | Reverb | Details |
| 20 Nov 2025 | €473$531 as sold | very good |  Japan | Reverb | Details |
| 29 Mar 2024 | €267$300 as sold | very 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 Marketplaces do not publish the day a sale closed; each of these had sold by the time we recorded it, in September 2026 and October 2026. A price is what the listing last asked, converted at that day’s rate.
Show all 31 recorded sales
| Listed | Price | Condition | From | Platform | The listing |
|---|---|---|---|---|---|
| 18 Aug 2026 | €380 | good | Germany | eBay Germany | Details |
| 6 Jul 2024 | €579$650 as sold | good | United States | Reverb | Details |
| 2 Jan 2024 | €425$475 as sold | very good | United States | Reverb | Details |
| 1 Nov 2023 | €356$400 as sold | good | United States | Reverb | Details |
| 16 Mar 2023 | €581$650 as sold | excellent | United States | Reverb | Details |
| 11 Feb 2023 | €356$400 as sold | very good | United States | Reverb | Details |
| 3 Feb 2023 | €624$700 as sold | excellent | United States | Reverb | Details |
| 1 Dec 2022 | €512$575 as sold | good | United States | Reverb | Details |
| 2 Oct 2022 | €355$398 as sold | very good | Japan | Reverb | Details |
| 2 Feb 2022 | €291$327 as sold | very good |  Australia | Reverb | Details |
| 2 Aug 2021 | €267$300 as sold | good | United States | Reverb | Details |
| 14 Jan 2021 | €576$647 as sold | very good |  Portugal | Reverb | Details |
| 3 Jan 2021 | €313$350 as sold | good | United States | Reverb | Details |
| 1 Jan 2021 | €424$476 as sold | excellent |  Canada | Reverb | Details |
| 18 Dec 2020 | €450$505 as sold | very good |  Mexico | Reverb | Details |
| 13 Dec 2020 | €490$550 as sold | good | United States | Reverb | Details |
| 5 Oct 2020 | €177$199 as sold | good | United States | Reverb | Details |
| 19 Aug 2020 | €222$249 as sold | fair | United States | Reverb | Details |
| 10 May 2020 | €263$295 as sold | good | United States | Reverb | Details |
| 4 May 2020 | €431$482 as sold | very good | United Kingdom | Reverb | Details |
| 15 Feb 2020 | €324$363 as sold | very good | Australia | Reverb | Details |
| 17 Jan 2020 | €267$300 as sold | very good | United States | Reverb | Details |
| 8 Nov 2019 | €470$528 as sold | mint |  France | Reverb | Details |
| 5 Jan 2019 | €177$199 as sold | fair | United States | Reverb | Details |
| 14 Nov 2018 | €312$350 as sold | very good | United States | Reverb | Details |
| 25 Dec 2016 | €311$349 as sold | excellent | 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 September 2026 and October 2026. A price is what the listing last asked, converted at that day’s rate.
Cheapest live: Germany €260 · before shipping
31 recorded sales of the Boss Km-6a from 2016–2026, all-time around €380. Too few in the last two years to quote a typical used price. Cheapest live €260 before shipping. Figures computed 17 October 2026.