KZ ASF

Five balanced armatures per side, in black

Drivers: 5 × balanced armature per side
Impedance: 18 Ω
Connector: 0.75 mm 2-pin

€29

Incl. 21% VAT

Order before 16:00, delivered tomorrowIn stock · Free delivery over €50 · NL & BE

30-day free returns
2-year warranty, handled by us
Shipped from the Netherlands
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Overview

The ASF is one of KZ's few all-armature IEMs: five balanced armatures per side, split over lows, mids and highs, with no dynamic driver. It launched in late 2020 at around $60. The tuning is bold rather than refined: lots of mid-bass and a forward upper midrange. Detachable cable, version without microphone.

5 balanced armatures per side
Detachable 0.75 mm 2-pin cable
Version without microphone
Sealed in original packaging

How it sounds

Frequency response

Dashed line: the Harman IE 2019 target

KZ ASFHarman IE 2019 targetdB, normalised at 500 Hz

Measured by Melatonin (IEC 711 clone), published on squig.link. Independent measurement, not by us. Measuring rigs differ slightly above 8 kHz.

Sound signature

Bass-heavy

Big, physical low end for electronic and hip-hop.

Read from the measurement above: bass and treble compared with Harman IE 2019. One curve gives an indication, not the final word.

Tuned for a lot of bass: between 60 and 250 Hz the ASF sits about 7 dB above the target. A strong bump around 1.6 kHz (almost 7 dB over the target) pushes voices forward, and after a peak between 5 and 6 kHz the treble drops steeply above 6.5 kHz. A bold, heavy sound; voices can come across a little nasal and that 5 kHz peak sharp, so it isn't the first choice for close listening to vocals or classical music.

Bass: Strong+6.3 dB
Mids: Lifted+2.2 dB
Treble: Neutral+0.8 dB