Wired IEMs
Focal Spark
Not yet scored
$69
Full review dataFocal Spark vs KZ PRX: which should you buy?
Specs, scores and condensed review verdicts for the Focal Spark vs KZ PRX, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Wired IEMs
KZ PRX
80Great
$55
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
KZ PRX leads on 4 of 4 measures.
- Focal Spark
- KZ PRX
HearWiki score
-
80
Sound
-
7.8
Value
-
8.6
Price (USD)
$69
$55
Generation & platform
The scores rank quality. This is the other question: is the newer one actually newer technology, or the same platform in a new shell?
Same generation
The KZ PRX is 8 years newer, but it is the same generation of hardware: nothing in the radio, the codecs or the noise cancelling separates them. Nothing separates them on convenience features either, so the choice comes down to tuning and price. For 8 years between them, that is a thin return - treat this as a restyle rather than a new platform.
- Spark2016
- PRX20248 yr newer
Specifications
SparkPRX
- Type
- Wired IEMs
- Wired IEMs
- Price (USD)
- $69
- $55
- HearWiki score
- Not scored
- 80
- Released
- 2016
- 2024
- Availability
- Discontinued
- Still sold new
- Driver
- 9.5 mm dynamic
- planar magnetic
- Driver type
- dynamic
- planar
- Driver size
- 9.5 mm
- -
- Drivers per side
- 1
- -
- Frequency response
- 20 Hz - 20 kHz
- -
- Sound signature
- v-shaped
- -
- Impedance
- 16 Ω
- 15 Ω
- Sensitivity
- 103 dB/mW
- -
- Bluetooth
- 4.1
- -
- Codecs
- aptX
- -
- Multipoint pairing
- No
- -
- Wireless range
- 10 m
- -
- Battery life
- 8 h
- -
- Wireless charging
- No
- -
- Active noise cancelling
- No
- -
- ANC type
- none
- -
- Transparency mode
- No
- -
- Companion app
- No
- -
- Custom EQ
- No
- -
- Wear detection
- No
- -
- Controls
- both
- -
- Voice assistant
- No
- -
- Weight
- 14 g
- -
- USB-C
- No
- -
- Connector
- 3.5 mm
- -
- Microphones
- 1
- -
- Call noise reduction
- No
- -
What reviewers said
Focal Spark
The Focal Spark is a lightweight aluminum in-ear monitor with a V-shaped sound profile, delivering punchy bass and smooth highs. It features a non-detachable flat cable with an integrated mic and control module, plus a fabric carrying case for portability. While wireless, it offers a modest 8-hour battery life and aptX support for decent audio quality.
- Pro:Lightweight aluminum build
- Pro:V-shaped sound with punchy bass
- Pro:Smooth treble response
- Con:No active noise cancellation
- Con:Non-detachable cable
- Con:Short 8-hour battery life
KZ PRX
The KZ PRX is a budget-friendly planar magnetic IEM that offers a balanced, warm-leaning sound with strong detail retrieval and capable imaging for its price. It excels in sub-bass presence and smooth mids, though it demands proper amplification and ear tips to perform at its best. Its soundstage is decent but not exceptionally wide, and the stock cable is a noted weak point.
- Pro:Excellent value for a planar IEM
- Pro:Balanced, warm sound with good detail
- Pro:Strong imaging and separation for the price
- Con:Requires a capable source and good ear tips
- Con:Stock cable limits performance
- Con:Soundstage is only medium-sized
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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