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
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

FATfreq x HBB Deuce | Dynamic Universal IEMs

$239.00
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Termination

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 24 reviews
83%
(20)
8%
(2)
0%
(0)
4%
(1)
4%
(1)
95.7
100.0
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Nathan Ross
I like bass. I like these.

If you ever thought to yourself "I wish I had headphones that would absolutely murder my face with bass", these are the IEMs for you. I was prepared for mud. As a basshead, mud is my reluctant home. You don't WANT mud, but you accept it, because it's always there. Except this time it's not. This is warcrime levels of bass, and it's clean. OK, I hear you say, but what about with the included bass boost adapter? Surely that has to introduce mud. Nope. Still no mud. Medium gain on my DAP (R4) which has class A amplifiers, clean as can be.

Well ok so it has clean bass. Surely the mids and highs are problematic. Nope. The mids are a bit recessed, but I knew that before I bought them. The highs are.. well I can't hear anything over about 15k (thanks Motorhead!) so I might not be the best to opine on the highs here, but it's unobjectionable to me. They're there. It's not bright, it's not veiled, just.. slightly crisp? Overall I dig these IEMs. Are there better bass cannons out there? Maybe. I donno. There are definitely worse ones out there for similar money.

As for sales/service, Bloom shipped these super quick; I ordered them on a Sunday and I had a tracking number before 9am Monday morning. I'll definitely be back for more headphones from Bloom Audio.

s
steve
The best iem I own to date

This is a bass monster but it is incredibly controlled, but what stands out is even with all the bass it has clear and slightly airy treble. I listen to a lot of metal, rock, and rap and these are incredible for those generas. Highly recommend.

A
Anonymous
Amazing Audio?

Super bassy, these are my first real pair of IEMs and they sound AMAZING! The shipping time from bloom is also super quick.

R
Richard M.
Bass Cannon

Very powerful bass without EQ. It is a excellent IEM for bassheads

A
Anonymous
A Bass Machine without any need for amplifier in a budget IEM!

These IEM are a must for a entry level audiophile that is into low or mid end bass. I have now listened to various types of music classic rock (Dazed and Confused by Led Zeppelin), rap(Unbelievable by Biggie Smalls) and various disco tracks. The low and mid bass detail combined with clear mid/highs exceeded my expectations. I am going use these with my new IFI Go POD Airs and take these bad boys on the road. I highly recommend these if you are looking for a audiophile grade IEM under $500.

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