LZ A4 Pro Quad Driver Hybrid IEM with Sound Tuning Options





LZ A4 Pro: The Latest Quad Driver Hybrid IEM

with Sound Tuning Options



LZ (老忠  Lao Zhong) Hi-Fi Audio is a Chinese company that is specialized in the production of In-Ear Monitors and is known with some models like the LZ A2/A2s, LZ A3/3s, LZ A4, LZ A6 or LZ Big Dipper Universal/Custom IEM. The main feature of almost any LZ Product is the ability to chance the sound tuning via Filters (LZ A4, LZ A5, LZ A6) or switches (LZ Big Dipper).

LZ Hi-Fi anounced today their latest Hybrid IEM the LZ A4 Pro that features a pair of quad-driver combination of three high-performance Knowles BA drivers and a CNT diaphragm dynamic driver. It has a mixed dual adjustable tone design with replaceable tuning nozzles and replaceable cavity tuning holes both of which allow the users to adjust the sound output as per their preference. LZ A4 Pro is available for a price of about $259 USD. More details can be found under the link below;





  • Frequency response range: 20Hz-20kHz.
  • Channel error range: ±0.5dB.
  • THD+N: <1%.
  • 78mm 2-pin connectors.
  • High-purity Graphene, Copper, Silver Alloy Cable.
  • Impedance: 26Ω.
  • Sensitivity: 112dB/mW.
  • Frequency response range: 20Hz-20kHz.
  • Channel error range: ±0.5dB.
  • THD+N: <1%.



  • 4+1 Hybrid Quad-driver configuration
  • Three high-performance Knowles BA drivers
  • One dual-cavity CNT diaphragm dynamic driver
  • Four sets of replaceable sound tuning nozzles
  • Three sets of cavity tuning holes.
  • 3D-printed resin cavities with designer face covers




LZ A4 Pro is the sub-flagship IEM in LZ’s lineup that comes with a beautiful monitor shell that has an ideal shape for a comfortable wearing experience. The monitors do come with 3D-printed resin cavities with designer face covers.


CNT Dynamic Driver:

LZ has equipped A4 Pro with a dual-cavity dynamic driver featuring CNT (Carbon Nano Tube) Diaphragm coil. This driver is tuned to produce a powerful and entertaining bass response.


Knowles Balanced Armature Drivers:

LZ has equipped the A4 Pro with three high-performance Knowles Balanced Armature drivers where two drivers produce the midrange and one driver that is dedicated for the high-frequency area.


Dual Adjustable Sound Tuning:

LZ A4 Pro offers multiple tuning options to make the pair sound exactly how we want it to sound. It comes with three pairs of replaceable cavity tuning plugs and four pairs of replaceable ear nozzles. They allow the user the adjust the output as per their sound and taste.


3D Printed Resin Monitor Shells:

LZ has designed the ear shells for A4 Pro using a high-end 3D printing process. They are made up of high-quality skin-friendly resin material. They are lightweight and sturdy ensuring a comfortable fit for most users.


High Purity Hybrid Cable:

LZ A4 Pro is equipped with an 8 core graphene copper-silver alloy cable. These materials are finalized after deep research to ensure quality performance with the A4 Pro. The cable here has 0.78mm 2-pin connectors so that users can switch between cables as per their requirements.


Thank you for the Read!





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