The best-selling modelling amp; MkII and Gen 3 versions coexist on the used market.
Prices are computed from recent UK (GBP) sold listings and refresh daily.
| Source | Listing | Condition | Price | Deal |
|---|---|---|---|---|
| eBay | 1.400 Patches BOSS KATANA 50 MK-2 (MKII) Tone Preset LIbrary | New | £8.39 | excellent |
| eBay | 1,400 Patches BOSS KATANA 50 MK-2 (MKII) Preset Tone Library | Nuovo | £10.29 | excellent |
| eBay | 4 channel foot switch for Boss Katana KTM 50 amp | New | £38 | excellent |
| eBay | Boss Katana 50 Gen 3 1x12 Combo Amplifier | Opened – never used | £198.3 | excellent |
| eBay | Roland Boss Katana-50 Guitar Amplifier (U) | Used | £199.95 | excellent |
| eBay | Roland Boss Katana KTN-50 2 50W Combo Guitar Amplifier | Used | £199.99 | excellent |
| eBay | Boss Katana 50 MKII 50W Guitar Amp Amplifier with Effects | Used | £219 | good |
| eBay | Boss Katana-50 GEN 3 Guitar Amplifier | New | £289.99 | fair |
| eBay | Boss Katana-50 GEN 3 Guitar Amplifier | New | £299 | fair |
| eBay | Boss Katana 50 Gen 3 Guitar Amplifier | New | £312.04 | fair |
Deal ratings compare each asking price with the recent sold-price median. Some links are affiliate links — they cost you nothing and support GearSnap.
As of September 2026, a used Boss Katana 50 in the UK typically sells for around £290. Anything under £200 is a strong price worth moving on quickly; between £200 and £312 is the fair-market zone; above £312 you're paying a premium that usually only makes sense for mint or boxed examples.
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