Boss Katana 50: used price in the UK

What a used Boss Katana 50 sells for, what to check and what usually goes wrong. Updated October 2026.

Used, working order	£135 - £195
How fast it sells	Sells very fast

What it sells for by condition

Condition	What it sells for	When this band applies
New or mint	£155 - £225	Sealed or never used
Excellent, like new	£145 - £210	Barely used, no visible marks
Good working order	£135 - £195	The range at the top of this page
Minor marks, fully working	£130 - £185	A few chips or scratches mentioned
Well used, heavy wear	£120 - £170	Worn, scuffed or road-worn
Faulty or for parts	£100 - £145	Assumes the fault is fixable

About this model

Covers the original, the MkII and the Gen 3. Newer generations sit towards the top of the range.

Check every channel and the effects knobs, and make sure it powers up cleanly. The Katana is one of the fastest-selling practice amps in the UK.

What to check before you buy

Power on and play for 10 minutes - listen for crackle, hum or cut-outs
Every knob through its range, on every channel
Effects loop, footswitch and headphone jacks
Speaker cone for tears; push gently for a rubbing voice coil

Common faults and rough repair costs

Fault	Fix	Rough cost
Crackly / scratchy pots or jacks	Easy - DIY, no special tools	£5-£12
Hum / buzz	Medium - soldering / disassembly / YouTube guide	£10-£60
No power	Medium - soldering / disassembly / YouTube guide	£3-£60
No / partial audio output	Medium - soldering / disassembly / YouTube guide	£5-£80
Damaged speaker driver	Easy - DIY, no special tools	£30-£120
Intermittent signal / loose connection	Medium - soldering / disassembly / YouTube guide	£3-£25

Questions people ask about this model

Which Katana 50 generation is it?

The original, the MkII and the Gen 3 look alike. Check the control panel and the rear label for the generation. Newer ones sell towards £195.

Does a Katana have valves to check?

No. It is a solid-state modelling amp, so there are no valves to wear out or replace. That makes a used one a lower-risk buy than a valve combo at the same price.

Can I post a Katana 50?

It can go by courier in a well-packed box, but it is bulky. Most sell collection-only, which limits buyers to people nearby, so price for a local sale.

Selling one on

Boss Katana, Fender/Marshall/Vox valve combos and Orange sell same-week. Big 4x12 cabs and 100W heads are slow and awkward. Small practice amps under £40 are barely worth listing.

Heavy - collection only for anything over 15kg. Valve amps do not travel well.

Where this price comes from

This is the range the flipper extension uses for a used Boss Katana 50 in working order in the UK. It is a starting point, not a quote: condition, extras, the original box and where you are all move the price, and faulty ones sell for much less.

The condition bands above are the same multipliers the extension applies to a listing. On a live Marketplace listing, flipper checks that range against real sold prices and live eBay listings for the exact model, works out your profit after fees and flags faults the seller mentions. It is free while in testing. Join the testers.

Buying one to keep? The bands above are a fair price to pay for each condition. See how to check a listing.

Timing Read The best time to buy and sell music gear in the UK.

For a child? Read Buying a first instrument second-hand: a guide for parents.