- Official UM partnerUK & EU, genuine stock
- 2-year warrantyHandled by our own team
- 14-day returnsWith the hygiene seal unbroken
- Hand-builtBy UM's master artisans


The 3DT feeling
Hear the music as it was played.
Natural, lively sound and a hand-finished wood shell: the most affordable way into Unique Melody.
Find your Unique Melody in 3 taps
Is the 3DT the one for you?
Three questions, honest answer. If another model suits you better, we will say so.
1What do you play most?
2How do you feel about treble?
3What is your budget?
Your match
3 questions to go
Answer the questions and we will match you to the right model.
Watch before you buy
Don't take our word for it.
Independent reviewers on the 3DT. Hear what they hear, then decide.
Independent reviews. Plays right here, and only loads when you press play.
No time for 20 minutes?
Skip straight to what you care about
Each one plays the review from that exact moment.
The sound
Natural, lively and quick.
Three dynamic drivers, each in its own 3D-printed sound tube, inside a shell no one else will have.
BOLLSEN sound map, summarised from independent reviews.
Maybe not for you if you are sensitive to upper mids and treble, or want thick, thumpy bass: try the MEXT.

Inside Unique Melody
Hand-built by people who have done it for a decade.
Every pair is assembled, soldered and tuned by hand in Unique Melody's own five-storey workshop, then listened to and measured before it ships.




Photos and facts © Unique Melody.
Inside the shell
Three dynamic drivers, three sound tubes.
All-dynamic for a natural, coherent sound.
- 012 × 7 mm composite dynamic: quick bassFast, controlled sub-bass.
- 021 × 10 mm carbon-nanotube dynamic: mids and trebleNatural timbre with sparkle.
- 03A 3D-printed sound tube per driverEach driver gets its own clean path.
- 04Hand-finished shellNo two pairs look alike.

As seen on YouTube
10 honest reviews. Watch, listen, decide.
Life with 3DT
Wherever the music takes you.





Reviews
What owners and reviewers say
independent video reviews on this page
A long-standing favourite: audioreviews.org rated it a can't-go-wrong pick and Audiophile Heaven praised a stage that punches far above its price. The caveats are a lively 3–5 kHz region that can sound forward to sensitive ears, and a shell that suits medium to large ears best.
What they love
- Natural timbre and coherence from the all-dynamic design (audioreviews.org)
- Stage and imaging well above its price (Audiophile Heaven)
- Clarity and transparency (Headfonia)
- Beautiful wood craftsmanship, with every pair unique
Worth knowing
- Upper mids can be forward for sensitive ears; a warmer source helps
- The shell is fairly large and the nozzle short: long-stem tips fit best
- The stock cable is functional rather than luxurious
Summarised from audioreviews.org, Audiophile Heaven, Headfonia.
Own the 3DT? Add a photo and tell other listeners what you hear.

The details
Everything you need, nothing to add.
In the box
- 3DT monitors (pair)
- Silver-plated copper cable, 3.5 mm (included)
- Leather-effect carry case
- Ear tips in several sizes
- Cleaning cloth and warranty card
Contents as supplied by Unique Melody and may vary slightly by batch.
Key specs
- Drivers per side: 2 × 7 mm composite-diaphragm dynamic (bass) + 1 × 10 mm carbon-nanotube dynamic (mids/treble)
- Impedance: 25.4 Ω · Sensitivity: 113 dB @ 1 kHz
- Frequency response: 20 Hz – 20 kHz
- Connector: 0.78 mm 2-pin
- Cable included: silver-plated copper, 3.5 mm plug
- Shell: CNC-machined stabilised wood, hand-finished
Delivery
- DHL Express, 5–7 working days
- Price includes UK VAT
Warranty & returns
- 2-year BOLLSEN warranty with UK & EU support
- 14-day returns with the hygiene seal unbroken
- Your statutory rights are not affected
Product safety
FAQ
Your questions, answered
Why three dynamic drivers?
Using one driver type across the whole range keeps the sound coherent and the timbre natural. Two 7 mm drivers handle the bass and a 10 mm carbon-nanotube driver handles mids and treble, each in its own 3D-printed tube.
Will it work with my phone?
Yes. It is very easy to drive, so a phone with a simple USB-C dongle is enough.
Which plug does it come with?
A 3.5 mm plug, which works with almost every dongle, laptop and music player.
Is there a Custom Fit version?
The 3DT is sold as Universal Fit. If you want a custom-moulded monitor, look at the MEXT, MEST MKII or MEST Jet Black.
How fast is delivery?
Delivered by DHL Express in 5–7 working days.
What warranty and returns do I get?
A 2-year BOLLSEN warranty handled by our UK & EU team. Returns within 14 days with the hygiene seal unbroken. Your statutory rights are not affected.
Why buy from BOLLSEN?
BOLLSEN is the official Unique Melody partner for the UK and EU: genuine stock, a 2-year warranty from our own team, clear delivery times and help choosing.


Bought from a hearing company. Looked after for 2 years.
The official Unique Melody partner for the UK & EU: genuine stock, help choosing and warranty support from our own team.
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Listening at home











2HT
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