Price guide / Synths, drum machines and samplers

Teenage Engineering OP-1: used price in the UK

What a used Teenage Engineering OP-1 sells for, what to check and what usually goes wrong. Updated September 2026.

Used, working order	£680 - £1,000
How fast it sells	Sells quickly

What it sells for by condition

Condition	What it sells for	When this band applies
New or mint	£780 - £1,150	Sealed or never used
Excellent, like new	£735 - £1,080	Barely used, no visible marks
Good working order	£680 - £1,000	The range at the top of this page
Minor marks, fully working	£645 - £950	A few chips or scratches mentioned
Well used, heavy wear	£600 - £880	Worn, scuffed or road-worn
Faulty or for parts	£510 - £750	Assumes the fault is fixable

About this model

The original OP-1 synth and sampler. The OP-1 Field (2022) is a different, much more expensive model.

Check the screen, the keys and how long the built-in battery lasts. It is small and posts easily, which widens the buyer pool.

What to check before you buy

Every key and all four encoders
Screen for dead pixels
Built-in battery: run it unplugged after a full charge
Speaker, headphone output and the radio
USB connection to a computer

Common faults and rough repair costs

Fault	Fix	Rough cost
Dead / sticky / broken keys	Medium - soldering / disassembly / YouTube guide	£10-£60
No power	Medium - soldering / disassembly / YouTube guide	£3-£60
Missing power supply	Easy - DIY, no special tools	£8-£30
Screen / display fault	Hard - specialist repair, usually not worth it	£20-£90
Battery	Easy - DIY, no special tools	£10-£40

Questions people ask about this model

OP-1 or OP-1 Field?

The OP-1 Field (2022) is a newer, much more expensive model. This range is for the original OP-1. Check the photos: the Field has a different finish and screen layout.

What should I check on a used OP-1?

The screen for dead pixels, every key and encoder, and how long the battery lasts on a full charge.

Why is the OP-1 so expensive used?

It has been replaced by the OP-1 Field and still has a loyal following, so used supply is limited. It holds its value well.

Selling one on

Real synths (Korg, Roland, Moog, Novation, Arturia, Nord) sell very fast. Home arranger keyboards (Yamaha PSR, Casio CT) are slow and low-margin unless free.

Boxable up to 61 keys; 76/88 key units are collection or expensive courier.

Where this price comes from

This is the range the flipper extension uses for a used Teenage Engineering OP-1 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.

Buying one? Read What to check before buying a used synth.