Wired IEMs
FATFREQ x HBB Deuce
76Great
$240
Full review dataFATFREQ x HBB Deuce vs Letshuoer S12 Ultra: which should you buy?
On aggregated review scores the Letshuoer S12 Ultra comes out ahead with a HearWiki score of 83. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Letshuoer S12 Ultra - Outstanding overall at around $169.
Wired IEMs
Letshuoer S12 Ultra
83Outstanding
$170
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
Letshuoer S12 Ultra leads on 4 of 4 measures.
- FATFREQ x HBB Deuce
- Letshuoer S12 Ultra
HearWiki score
76
83
Sound
8.2
8.6
Value
8.8
8.9
Price (USD)
$240
$170
Generation & platform
The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?
Same generation
Letshuoer S12 Ultra (2025) against FATFREQ x HBB Deuce (2024). These are the same generation of hardware - nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price.
- x HBB Deuce2024
- S12 Ultra20251 yr newer
Specifications
x HBB DeuceS12 Ultra
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $240
- $170
- HearWiki score
- 76
- 83
- Released
- 2024
- 2025
- Availability
- Discontinued
- Sold new
- Driver
- 2× dynamic
- 1 planar magnetic
- Driver type
- dynamic
- planar
- Driver configuration
- -
- 1 planar magnetic
- Driver size
- -
- 14.8 mm
- Drivers per side
- 2
- 1
- Impedance
- -
- 16 Ω
- Active noise cancelling
- No
- -
- Connector
- 2-pin 0.78 mm
- -
What reviewers said
FATFREQ x HBB Deuce
This wired IEM is built for bass enthusiasts, delivering a deeply extended low-end with strong physical impact and control. It pairs its heavy sub-bass with clear imaging and a spacious soundstage, though it demands a bit more volume and has a very specialized tuning that won't suit all listeners.
- Pro:Powerful, physical sub-bass impact
- Pro:Controlled low-end below 150 Hz
- Pro:Clean imaging and spacious staging
- Con:Very bass-heavy, not for neutral listeners
- Con:Requires higher volume to shine
- Con:Specialized tuning limits versatility
Letshuoer S12 Ultra
The Letshuoer S12 Ultra is a wired in-ear monitor built around a single 14.8mm planar magnetic driver housed in a lightweight aluminum shell. It delivers the signature planar sound of the S12 line—fast, detailed, and punchy—in a refreshed design aimed at hi-fi enthusiasts. With a low 16-ohm impedance, it pairs easily with most sources, though it lacks any active noise cancellation.
- Pro:Fast, detailed planar sound with strong dynamics
- Pro:Lightweight and sturdy aluminum-alloy build
- Pro:Easy to drive thanks to low impedance
- Con:No noise cancellation or isolation features
- Con:Planar timbre may not suit all listeners
- Con:Cable and accessories are basic for the price
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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