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WishThrift

How to Sell a Used Guitar Amplifier

A used guitar amplifier typically sells for £40 to £250, and on WishThrift it costs you nothing to list — no fee, no commission, so you keep the whole amount you agree. Amps sell on wattage and whether they are valve or solid state, and buyers want to know whether it hums, crackles or needs new valves.

The short version

Before you photograph it

Ten minutes here is worth more than anything else you will do. Buyers are deciding between your listing and someone else’s, and preparation is what visibly separates the two.

  • Note the wattage, whether it is valve, solid state or modelling, and the speaker size.
  • Plug in and test every channel, control and input for crackle, hum or dropout.
  • On a valve amp, note when the valves were last changed and whether it has been biased.

The photographs that sell a guitar amplifier

Four photographs do almost all the work. Shoot in daylight, near a window, with the item against something plain — and do not use the flash, which flattens texture and hides exactly what buyers are trying to see.

  1. The amp from the front, controls visible
  2. The rear panel showing inputs, outputs and the valve complement
  3. The speaker cone through the grille if visible
  4. The cabinet corners and any tear, dent or wear

Photograph the flaws too. It feels counterproductive, but a listing that shows the worst of an item gets fewer questions, fewer withdrawn offers and fewer arguments at handover. Buyers who can see the damage stop imagining something worse.

Writing the title and description

Brand, wattage and type: “Fender Blues Junior 15W Valve Combo Amp”. Valve versus solid state is the main price driver and a genuine search term. Combo or head, and the speaker size, both belong in the title.

Then state these in the description, because a buyer who has to ask is a buyer who might not bother:

  • Brand, model, wattage and whether valve, solid state or modelling
  • Combo or head, and the speaker size and make
  • Number of channels, and whether it has reverb or effects loop
  • Valve age and bias status if applicable, and any hum or crackle

What buyers will actually ask

You will receive the same three messages about a guitar amplifier. Answering them in the listing itself removes the back-and-forth, and answering them well when they do arrive is what turns an enquiry into a sale.

“Does it hum?”

Plug in and listen at idle. Hum on a valve amp often means tired valves or filter capacitors, and buyers price that in.

“When were the valves last changed?”

Say if you know. Fresh valves are worth real money and old ones are a known upcoming cost.

“Do all the controls work?”

Sweep every knob and switch. Scratchy pots are cheap to clean but must be mentioned rather than discovered.

Pricing it so it actually sells

Start from the honest condition grade rather than the price you hope for. WishThrift listings use five grades — New with Tags, Like New, Good, Fair and For Parts — and what each grade means is worth reading before you choose, because grading up is the most expensive mistake sellers make. It does not raise the price; it produces a buyer who arrives expecting something else.

The guitar amplifier value guide prices all five grades for this item. Pick your grade, take the figure, and if you sit between two grades price toward the lower one. Items priced honestly sell faster than items priced hopefully, and on a free platform there is no fee eating the difference anyway.

What you keep, compared

On a £145 sale — roughly the middle of the range for a guitar amplifier — here is what the commission-charging platforms would take, and what you would keep on each:

Where you sell itFeeYou keep
WishThrift£0£145
Poshmark−£29£116
eBay−£20£125
Mercari−£14£131
Etsy−£9£136

Seller-side rates verified 26 Jul 2026 — Poshmark: 20% commission on sales of $15 and above; eBay: 13.6% final value fee, plus a per-order fee; Mercari: flat 10% selling fee; Etsy: 6.5% transaction fee, plus a listing fee and payment processing. Percentages are applied to the sterling figure above; the fixed per-order and processing charges those platforms add are quoted in their own currency and are not included here, so the real deductions are slightly larger. Full breakdown: marketplace selling fees compared.

Timing and getting it to the buyer

Steady with a Christmas lift. Recognised valve amps hold value strongly and sell within days.

Heavy and the speaker is vulnerable. Post face-down in a well-padded box or, better, hand over locally so the buyer can plug in and hear it.

WishThrift does not process payments or arrange delivery — you and the buyer agree both directly — so confirm payment has cleared before the item leaves your hands, and keep the conversation on the site so there is a record of what was agreed.

Ready to list it? It takes about two minutes, costs nothing, and there is no commission when it sells — create a free account or see how selling works.

Frequently asked questions

What is a used guitar amplifier worth?

Typically £40 to £250, with recognised valve amps well above. See the guitar amplifier value guide.

Valve or solid state: which is worth more?

Valve amps generally hold value far better and are sought after for their sound. They also need periodic valve replacement, so state the valve age if you know it.

Should I replace the valves before selling?

Usually not — players often have their own preference. Say how old the current set is and let the buyer decide, which is worth more than a set they may not want.

See also: what a used guitar amplifier is worth · browse live music & instruments listings · condition grades explained.