Tanchjim ONE DSP
Clear vocals, smooth treble and unusually composed, EQ-ready bass give the Tanchjim ONE DSP an immediately likeable everyday sound. Tone Deaf Monk found the stock USB-C DSP cable especially effective, with onboard five-band tuning that retains settings between devices, while AV Atmos praised its tidy, well-made design. A compelling budget IEM for flexible phone listening.
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Nicely Roasted
Sound Quality
87/100
Fit Comfort Isolation
70/100
Build Accessories
82/100
Value for Money
81/100
Pros
Clear vocals and smooth, non-fatiguing highs create an easygoing, agreeable tuning.
Bass remains controlled even with substantial DSP boost, offering useful low-end customization headroom.
Five-band DSP EQ stores settings in the cable for use across compatible devices.
Well-made, nicely designed housing and flexible cable earn positive build feedback.
Cons
DSP use is tethered to USB-C, limiting compatibility with 3.5 mm and 4.4 mm sources.
The DSP app has reported usability and EQ limitations, including restricted sub-bass adjustment and whole-number Q values.
The DSP version costs slightly more than the non-DSP model, a premium one reviewer questioned.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 87/100
The available listening feedback is strongly positive, describing the ONE DSP as fantastic from a Samsung phone and free of obvious sonic complaints. Clear vocals, smooth highs and bass that remains composed with added DSP boost suggest an agreeable, well-controlled everyday tuning, though the reviews offer limited detail on its more technical abilities.
Bass
91/100
The reviewer was impressed that a substantial 60 Hz boost at 42 Hz through the DSP app did not make the bass lose control. That points to a capable low end with useful headroom for listeners who want more weight.
Midrange
89/100
Vocals are described as clear, while the mids are called unoffensive and pleasant. The comments suggest a clean, easygoing presentation rather than an aggressively forward or colored midrange.
Treble
88/100
The highs are specifically described as smooth. This supports a relaxed treble balance that should avoid obvious sharpness or fatigue, although extension and air are not discussed in detail.
Resolution Separation
84/100
The reviewer repeatedly says the ONE DSP sounds great and fantastic, but provides little direct discussion of microdetail, layering, or performance in dense mixes. Its generally clean vocal presentation is encouraging, while the available evidence is limited.
Soundstage Imaging
82/100
The reviews do not directly characterize stage width, depth, or image placement. Broadly positive sound comments indicate no reported spatial problem, but there is little detail about imaging performance.
Dynamics Coherence
84/100
The bass remains composed when boosted through DSP, which is a positive sign for control under more demanding settings. Reviewers otherwise say little about dynamic contrast, transients, or complex driver integration.
FIT COMFORT ISOLATION PERFORMANCE 70/100
The supplied reviews do not meaningfully address fit security, long-session comfort, or passive noise isolation. Prospective buyers should therefore treat seal and ergonomic performance as less documented than the sound and build impressions.
Seal Stability
70/100
Reviewers do not report whether the shells achieve a reliable seal or remain secure during movement. There is also no discussion of fit-related bass variation.
Comfort
70/100
The available reviews offer no direct experience with extended wear, nozzle pressure, or ear fatigue. Comfort will depend on individual ear shape and tip choice.
Isolation
70/100
Passive isolation is not discussed in the supplied material. There is no evidence of either notably strong attenuation or an isolation-related drawback.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Accessories
82/100
AV Atmos calls the build decent, nice-looking, well made, and well designed, with no obvious construction concern raised. The reviews do not provide meaningful detail on cable durability, included tips, case quality, or long-term reliability.
Value for Money
81/100
At roughly $27.99 for the DSP version, one reviewer questions why buyers would pay more when the non-DSP model is about $24.99. The same reviewer still calls the sound good and a no-brainer, but the small price premium for the DSP cable is presented as a concern.
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Manufacturer's Description — Tanchjim
Sensitivity: 126 dB/Vrms @1Khz
Frequency response range: 7-45Khz
THD：<0.062% @1Khz
Driver: 10mm dynamic driver
Impedance: 16Ⅻ《10% @1Khz
PIN SPECIFICATION：
gold-plated straight pin
Dynamic diaphragm material: Peek&Pu Hanging Edge Ti Ball Top
Cable specification: 1.25M 3.5MM 0.78PIN
Cable material and structure: LITZ oxygen-free copper silver plating + LITZ oxygen-free copper composite coaxial structure
Verified Dealers
Online Dealers
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Authorized dealers for Tanchjim ONE DSP
- AUDIOPHONICS — in-store — Bordeaux, Nouvelle-Aquitaine, France (website)
- GEEKWILLS — online and in-store — Beijing, Beijing, China (website)
- Headphone Zone — online and in-store — Laxmi Industrial Estate, Maharashtra, India (website)
- HiFiGo — online and in-store — Kowloon, Hong Kong (website)
- Living Auido — in-store — Taman Sri Endah, Wilayah Persekutuan Kuala Lumpur, Malaysia (website)
- Oardio — in-store — Singapore, Singapore (website)
- Patefon — online and in-store — Basmanny District, Moscow, Russia (website)
- Penon Audio — online and in-store — New Territories, Hong Kong (website)
- Shenzhenaudio — online and in-store — Long Gang Qu, Guang Dong Sheng, China (website)