KZ ZS12 Pro X: hybrid in-ear monitors with 6 drivers per side for rehearsing and playing live
The KZ ZS12 Pro X are wired hybrid in-ear monitors: each earpiece combines a 10 mm dynamic driver with five balanced armatures in a zinc alloy shell. They come in a standard version and a tuning-switch version, both with or without a microphone.
They are designed for musicians who want to hear themselves clearly in rehearsal and on stage. With one dynamic and five armatures per side in a zinc alloy shell, guitars, keys and vocals come through in detail; the version with switches lets you adjust the tuning.
They are worn with the cable over the ear so they stay put while you play, and the 2-pin cable is detachable: if it breaks, you replace the cable, not the earphones. By sealing the ear canal with the ear tips they reduce the noise of the rehearsal room, so you don't have to turn the volume up as much to hear your part. They plug into an IEM bodypack, the headphone output of the mixing desk or your phone through a 3.5 mm jack.
- 6drivers per earpiece: 1 dynamic and 5 armatures
- 25 Ωimpedance
- 106 dBsensitivity
- 2versions: standard and with switches
Sound
Sound: 1 dynamic driver and 5 balanced armatures
Each earpiece houses a 10 mm dynamic driver for the bass and five balanced armatures for the mids and treble: two dual 31736 units and one 30019.
With an impedance of 25 Ω and a sensitivity of 106 dB, they run straight from a phone, laptop or music player, with no amplifier needed.
Versions
Standard version and tuning-switch version
The standard version has a fixed tuning.
The tuning-switch version (“Tuning”) adds four switches on each earpiece: three raise the bass in steps and one tames the treble.
Design
Design and fit
The shell is die-cast zinc alloy, double electroplated, with a protective metal mesh.
Three sizes of silicone ear tips (S, M and L) are included to get the right seal for each ear.
Connection
Detachable silver-plated 2-pin cable
The cable is silver-plated copper and measures 120 cm (±5 cm).
It attaches to each earpiece with a standard 0.75 mm 2-pin connector, so it can be replaced if damaged or swapped for another cable. The same connector lets you go wireless with a KZ Bluetooth adapter that is compatible.
Wireless mode with a Bluetooth adapter is for listening to music; to monitor yourself while you play, use the cable, which has no latency.
Also available with an in-line microphone.
KZ ZS12 Pro X technical specifications
| Drivers | 1 × 10 mm dynamic + 5 balanced armatures per side |
|---|---|
| Impedance | 25 Ω |
| Sensitivity | 106 dB |
| Frequency response | 20 Hz – 40 kHz |
| Earphone connector | 0.75 mm 2-pin |
| Plug | 3.5 mm jack |
| Cable | Silver-plated copper, detachable |
| Cable length | 120 ± 5 cm |
| Shell | Zinc alloy |
| Switches | 4 per earpiece (Tuning version) |
| Microphone | Optional |
| Versions | Standard and with tuning switches |
KZ ZS12 Pro X frequently asked questions
Can they be used as in-ear monitors for playing live or in the rehearsal room?
Yes. Worn with the cable over the ear and with the right ear tip size, they reduce the noise of the rehearsal room. The usual setup is to plug them into an IEM bodypack that receives a send from the mixing desk, so each musician gets their own mix; you can also plug them into the headphone output of the desk.
And for listening to music or gaming?
Yes. Although we recommend them mainly for playing, they work just as well for listening to music on your phone or computer and for gaming. Wired, there is no latency.
Do the KZ ZS12 Pro X have noise cancellation?
They have no active noise cancellation. They are in-ear earphones with silicone ear tips, which passively block outside noise by sealing the ear canal.
Do they work with phones that have no headphone jack?
Yes, with a USB-C or Lightning to 3.5 mm jack adapter, or with a 0.75 mm 2-pin Bluetooth adapter.
Can the cable be replaced?
Yes. The cable is detachable and uses a standard 0.75 mm 2-pin connector.
What warranty do they come with?
3-year warranty against manufacturing defects, handled from Spain.
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