FATfreq x HBB Deuce closeup left earphone with attached blood cable whitebox
FATfreq x HBB Deuce closeup left earphone with attached blood cable over black herringbone background
FATfreq x HBB Deuce closeup left earphone with attached blood cable Bokeh black background
FATfreq x HBB Deuce closeup high angle with attached coiled stock red blood cable on wood table
FATfreq x HBB Deuce closeup eye level with attached coiled stock red blood cable on smooth surface
FATfreq x HBB Deuce impedance adapter 4.4mm
FATfreq 4.4mm to 3.5mm adapter profile

FATfrequency x HBB Deuce | Dynamic Universal IEMs

Regular price$239.00
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FATfreq logo black

FATfreq x HBB Deuce, the Sub-Bass IEM with the Golden Combo of Punch and Rumble

single fatfreq x hbb deuce earphone with attached cable running across butcher block table

Bloom's Take

The FATfreq Deuce has arrived, the highly anticipated collaboration with HBB, also known as Bad Guy Good Audio Reviews. It sports a streamlined, professional look with glossy black housing and subtle branding, and with its sturdy yet flexible Silver 'Blood' cable, the Deuce combines premium aesthetics with a focus on comfort, durability, and incredible value for its price.

Sound wise, the IEM combines FatFreq’s signature bass power with HBB’s tuning sensibilities, delivering a deep, textured low end that satisfies bass lovers while keeping the mids and highs clear and balanced. The Deuce is an ideal choice for anyone looking for both warmth and clarity in a single IEM, and it's a standout among other popular IEM collaborations, particularly for those seeking high-quality bass with a nuanced sound profile.


Meticulously Tuned with Top Reviewer HBB

Over a year, the Deuce was meticulously tuned with top reviewer HBB, also known as Bad Guy Good Audio Reviews, undergoing multiple iterations of tuning and design. Each phase focused on refining sound clarity, depth, and dynamics. HBB's extensive collection of hip-hop, rock, and classical tracks heavily influenced the Deuce's tuning direction, with significant effort spent to ensure it excels in these genres. This dedication has resulted in an IEM that offers unparalleled audio quality and an immersive experience.

FF Custom-Designed Dynamic Chamber

FATfreq introduces a new acoustic system featuring advanced networks that meticulously manage sound wave propagation to ensure optimal clarity and precision. Specially engineered bass chambers optimize airflow, enhancing tonality and deepening bass response.

fatfreq x hbb deuce coiled blood cable highlighting 3.5mm plug

FATfreq Tech

BASS CANNON™ (Patent Pending): Using proprietary dynamic woofers, bass chambers and acoustic damping networks, FATfreq was able to design the deepest bass ever recorded of over 30dB, expertly controlled below 150Hz with zero mid-range bleed. A FATfreq innovation pioneered and perfected for sheer bass power.

SONAR LA TROMPA™: Inspired by the anatomy of the traditional french horn, FATfreq uses exponential horn curvature for gain control and to improve treble tonality via acoustics. Providing you with Smooth, natural sounding highs, grounded by a nice timbre in the mid and low frequencies.

PHASEALIGN: The absence of a DSP in IEMs means that FATfreq had to match the phase of multi-way systems via Acoustic delay. Using proprietary structures, they were able to align the low, mid and high frequencies such that they reach your eardrum in a coherent manner. Giving you the sound accuracy and resolution demanded on stage and studio.

fatfreq x hbb deuce earphones with attached red blood cable hanging over corner of amp dark

Specifications

  • Bass Cannon™ technology
  • Cable: 2-Pin (0.78) sockets
  • FATfrequency 1 Year Warranty

FATfrequency x HBB Deuce IEM measurment graph

In The Box

  • FATfreq x HBB Deuce IEM
  • Pre-order special: Silver 'Blood' cable + Bass impedance adapter

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Customer Reviews

Based on 6 reviews
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T
Terry
Exceeded my expectations and lived up to the hype

I'll start off by saying the stock cable is one if not THE most comfortable and nicest stock cable I've seen. At first I was worried about the fit because the barrels are MASSIVE but I found workaround tips for that and they fit perfectly. The bass is phenomenal and it doesn't muddy the clarity at all, you can really hear every detail and the music immerses you while wearing them. The only con is the case, I doesn't fit the IEMs so I'm assuming it's for the added cable accessory. Other than that they're perfect.

O
Ozz Sanchez
THey sound awesome

The sound its good but if you EQ them, they sound even more awesome

J
Jonathan Danucalov

Pleasantly surprised with how Fatfreq was able to create such an amazing IEM with deep bass rumble and yet a nearly perfect mid and high resolution. Fantastic IEM, I feel like I'm listening to my library for the first time again.

S
Simon Ash
HBB Deuce

Super satisfied with these iem! They are more than one could wish for at this price point. Perfect for those who prefer a little more bottom end.

R
Richard Hurlebaus
Like being in the Blue Note club

I listen mostly to my Jazz station on Live One app. Though I'll also try with BSO live broadcasts on Classical.org. These are by far the best IEMs in my meager collection. I'm using them through a Shanling UA3 from a Google Pixel 8. Thank you Bloom, FF and HBB!

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