5-year warranty · 45-day home trial  ·  Get this site as a template — $19
SoundTheory
Hi-fi & listening gear

Hear the room, not the gear.

Headphones, speakers and turntables chosen for one thing: they disappear when the music starts. Try any of it at home for 45 days.

Shop the collection New arrivals
  • 45 dhome trial
  • 5 yrwarranty
  • 0.02%total distortion
Format
HTML + CSS + JS
Assets
6 CC0 photographs
Licence
MIT code / CC0 photos
Sound Theory — Hi-fi & listening gear
Featured Studio Over-Ear $249 · in stock now
45-day trialMeasured, not marketed5-year warrantyVinyl & digitalShips insured45-day trialMeasured, not marketed5-year warrantyVinyl & digitalShips insured
Shop by category

Browse the collection

Four ranges, made in small batches and restocked when they sell out.

All products →
Headphones — Sound Theory Headphones
4 items→ Speakers — Sound Theory Speakers
3 items→ Vinyl — Sound Theory Vinyl
4 items→ Accessories — Sound Theory Accessories
3 items→
Bestsellers

Most wanted

Six pieces people come back for — small runs, honest prices.

Studio Over-Ear New
Headphones

Studio Over-Ear

$249
Bookshelf Speakers
Speakers

Bookshelf Speakers

$420
Belt-drive Turntable
Vinyl

Belt-drive Turntable

$340
Condenser Mic Bestseller
Desk

Condenser Mic

$180
Braided Cable Set
Desk

Braided Cable Set

$45
Headphone Stand
Desk

Headphone Stand

$38
Measured first, admired later
How we choose

Measured first, admired later

Every product we stock is measured in our own anechoic box before it gets a listing. If the graph is dishonest — or the price is paying for the box — we do not carry it.

We keep the range tight so every item earns its place — nothing is here to fill a gap on the shelf.

See the measurements
Why Sound Theory

Shopping without the noise

🎧

45-day home trial

Live with it in your own room. If it does not fit the space, send it back freight-paid.

📐

Measured in-house

Frequency, distortion and impedance published for everything we sell.

🛡️

5-year warranty

Drivers, amplifiers and tonearms covered for half a decade.

🚚

Insured shipping

Double-boxed and insured — a cracked tweeter never becomes your problem.

Kind words

Loved by regulars

★★★★★

“The trial is dangerous. I kept the speakers, the stand and the cable.”

Owen J. · Cardiff
★★★★★

“They published the measurements I could not find anywhere else. Bought the same day.”

Mika T. · Helsinki
★★★★★

“Turntable arrived perfectly set up — anti-skate and everything. Just add a record.”

Listening room

Book an hour in the treated room with your own music — no salesman hovering, no obligation.

✉️
Email

hello@soundtheory.audio
Orders, questions and wholesale

🕘
Opening hours

Wed–Sun, 12:00–20:00
Replies within one working day.

📍
Where to find us

3rd Floor, 90 Tottenham Ct Rd, London
+44 20 7000 9090

💳
Payments

Card at checkout, or USDT (ERC-20) for larger orders. We never store payment details.

Sound Theory studio
Newsletter

Listening notes

New measurements, second-hand gear drops and one record worth buying. Fortnightly.

No spam. Unsubscribe any time.