Kiwi Ears Septet and FATfreq x HBB Deuce use 1DD+4BA+1Planar+1PZT and 2DD driver setups respectively. Kiwi Ears Septet costs $269 while FATfreq x HBB Deuce costs $239. Kiwi Ears Septet is $30 more expensive. Kiwi Ears Septet holds a slight 0.1-point edge in reviewer scores (7.3 vs 7.2). FATfreq x HBB Deuce has significantly better mids with a 2-point edge, FATfreq x HBB Deuce has better treble with a 0.5-point edge and Kiwi Ears Septet has significantly better soundstage with a 1-point edge.
Insights
Metric | Kiwi Ears Septet | FATfreq x HBB Deuce |
---|---|---|
Bass | 7.3 | 7 |
Mids | 5 | 7 |
Treble | 5 | 5.5 |
Soundstage | 7 | 6 |
Dynamics | 6 | 6 |
Tonality | 7.1 | 6.6 |
Technicalities | 7.2 | 5.8 |
Kiwi Ears Septet Aggregated Review Score
Average Reviewer Scores
FATfreq x HBB Deuce Aggregated Review Score
Average Reviewer Scores
Kiwi Ears Septet Details
Driver Configuration: 1DD+4BA+1Planar+1PZT
Tuning Type: Neutral-bright
Brand: Kiwi Ears Top Kiwi Ears IEMs
Price (Msrp): $269
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FATfreq x HBB Deuce Details
Driver Configuration: 2DD
Tuning Type: n/a
Price (Msrp): $239
Support our free service! Buying through our affiliate links costs you nothing extra:
Kiwi Ears Septet User Review Score
Average User Scores
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FATfreq x HBB Deuce User Review Score
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Kiwi Ears Septet Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.1Gaming Grade
A-FATfreq x HBB Deuce Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.1Gaming Grade
BKiwi Ears Septet Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A-- Pleasing tonal balance with good technical control. Minor quirks present but not distracting. Demonstrates decent genre versatility.
Average Technical Grade
A-- Competent technical presentation. Handles separation and detail well in most tracks, with modest soundstage and acceptable imaging capabilities.
FATfreq x HBB Deuce Scorings
Average Technical & Tuning Grades
Average Tunign Grade
B+- Generally enjoyable tonal character with some noticeable unevenness. Maintains listenability while showing room for refinement in frequency balance.
Average Technical Grade
B-- Satisfactory technical performance. Handles basic detail retrieval adequately in most tracks. Maintains reasonable cohesion in simpler arrangements.
Kiwi Ears Septet Reviews
Bright-leaning with slight warmness - has an unique sparkly/lush, airy, and spacious sound. Great tech for the price, treble is not overly harsh or peaky (at mid volume), pretty smooth with the extra mid-bass balancing out the treble boost. Vocals are pushed back/not fully extended and not as prominent. Mid-volume set, doesn't scale well. Gets spicy with energetic genres past mid-volume. Great for instrumentals, acoustics, indie, classical, etc. Jays Audio Youtube Channel
A unique open back iem. Jaytiss Youtube Channel

The Kiwi Ears Septet delivers a neutral-bright sound signature characterized by clear vocals and a notably forward treble that enhances detail retrieval, particularly in female vocals and acoustic instruments. Its bass response is neutral and controlled, lacking the weight of closed-back designs but offering tight, fast decay. While this tuning excels with well-recorded tracks, it can become fatiguing with bright or poorly mastered material due to its upper-midrange and treble emphasis. The open-back design contributes to an airy presentation, though it reduces isolation significantly.
Technically, the Septet showcases a wide soundstage with precise imaging and strong microdynamics, allowing subtle instrumental textures to shine. Its seven-driver quadbrid configuration (dynamic, balanced armature, planar, and piezoelectric) integrates cohesively through a sophisticated 5-way crossover. However, the low sensitivity (95dB) demands powerful sources to avoid dynamic compression, and the open-back design makes it less suitable for noisy environments despite its comfortable fit.
FATfreq x HBB Deuce Reviews
This is not my usual sound signature which I like. But it's a lot of fun in a unique way. One-trick pony.Super* Review original ranking
Super* Review Youtube Channel
Easy reccomendation for somoene looking for a basshead IEM that still retains some resemblence of neutrality through the mids and treble. Loaner
check links for more info:Bad Guy Good Audio original ranking
Bad Guy Good Audio Youtube Channel
Hits Hard, and is super fun. Suprisingly great mids. Jaytiss Youtube Channel
The defacto basshead rec before the more expensive stuff. Super fun sub-bass, textured, heavy, prolonged decay for more reverb in the bass, well-balanced as well, smooth and scales great. Tech is not its strong point, and DON'T buy from FatFreq directly!!! Jays Audio Youtube Channel
Kiwi Ears Septet User Reviews
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