L’auditeur — in-store — Budapest, Hungary (website)
Linsoul — online and in-store — Shenzhen, Guangdong Province, China (website)
Professional Reviews 54/100
Kinda Soggy
Sound Quality
31/100
Fit Comfort Isolation
85/100
Build Accessories
85/100
Value for Money
75/100
The AudioSense AQ4 delivers an unapologetically bass-heavy, warm presentation built around abundant low-end weight. That character may suit listeners seeking maximum mid-bass presence, though Tone Deaf Monk found its treble detail, imaging, and transient snap severely limited. This is a distinctly dark, colored IEM that puts bass quantity ahead of balance and spaciousness.
Very pronounced mid-bass presence creates a thick, dark tonal balance for listeners who specifically prefer that coloration.
&
Cons
Bass is described as boomy, muddy, and slow, masking instruments and vocals rather than sounding controlled.
Treble extension and sparkle are reported to be notably lacking.
Limited resolution, attack, and instrument separation undermine clarity in complex recordings.
Soundstage and left-right imaging are reported as very restricted, with little sense of space.
SOUND QUALITY PERFORMANCE 31/100
The supplied review is overwhelmingly negative, describing a boomy, muddy low end that masks much of the rest of the presentation. It also reports severely limited treble, detail, spatial definition, and dynamic expression.
Bass
30/100
The reviewer calls the bass bloated, boomy, and muddy rather than fast or controlled. They report incorrect drum, guitar, and double-kick reproduction, with decay that fails to give mid-bass notes convincing weight and definition.
Midrange
48/100
Direct comments on vocal tone and midrange timbre are limited. The reviewer suggests the excessive bass may be masking the upper mids, which would make important musical presence information harder to hear.
Treble
32/100
Treble is described as largely absent, with the reviewer stating that treble-focused listeners would dislike it. This lack of high-frequency energy is also said to reduce openness and spatial cues.
Resolution Separation
25/100
The AQ4 is described as among the least resolving IEMs the reviewer has heard. They report little attack or snap and very limited image separation, particularly undermining clarity in busy music.
Soundstage Imaging
22/100
The reviewer reports no meaningful soundstage, left-right image separation, or sense of space. The presentation is portrayed as closed-in rather than spatially organized.
Dynamics Coherence
24/100
The review finds neither convincing microdynamics nor macrodynamic impact. Weak transient snap and the heavy, uncontrolled bass are presented as making the overall performance feel dull and poorly integrated.
FIT COMFORT ISOLATION PERFORMANCE 85/100
The supplied review does not assess fit, seal consistency, long-session comfort, or passive isolation. There is therefore no product-specific indication of a fit-related strength or fault.
Seal Stability
85/100
The review provides no comments on insertion, tip fit, seal consistency, or bass changes caused by fit. Seal performance during normal use is not assessed.
Comfort
85/100
The review does not discuss shell ergonomics, nozzle pressure, weight, or extended-wear comfort. There is no direct listener evidence on comfort.
Isolation
85/100
Passive isolation is not discussed in the supplied review. Its effectiveness in noisy environments is therefore unclear.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Accessories
85/100
The supplied review does not evaluate shell construction, connectors, cable quality, included tips, case, or other accessories. Long-term durability and accessory usefulness are not assessed.
Value for Money
75/100
Value sentiment is clearly negative: the reviewer warns against spending the stated $230 US asking price and says that even their $98 sale purchase brought buyer's remorse. Against the product data's $179 price, this review still presents the AQ4 as difficult to justify because of its reported sonic shortcomings.
