Free shipping fee on orders over HK$800
SOLD OUT 64 audio U4

64 audio U4

Brand: 64 Audio
Product Code: U4
Availability: SOLD OUT
Qty: Add to Cart

The 64 AUDIO U4 universal-fit earphones were designed with bass lovers in mind. They are built on the revolutionary ADEL™ technology. Because of this technology and its effect on the human ear, they offer a listening experience that cannot be matched by conventional IEMs. In addition to having dedicated mid and high drivers, their proprietary dual low subwoofers produce powerful yet controlled bass. Previously, this sound could only be possible with large, bulky "over-the-ear" headphones, but due to their advanced design the U4s deliver the richness and low-end impact with ease. This product is ideal for drummers, percussionists, bass players and the like. 

Like all 64 AUDIO universal-fit products, the U4 earphones are inherently noise cancelling and are designed to work well with a wide range of personal audio devices as well as all Personal Monitoring Systems.


  • 64 Audio Protective Case
  • 48” Detachable Black Cable
  • Comply Ear Tips (S, M, L)
  • Cleaning Tool
  • Shirt Clip
  • Dehumidifier
  • Round Sticker
  • ADEL™ Auto Module


Transducer type: 4 precision balanced armature drivers

Transducer configuration: 2-low, 1-mid, 1-high

Quad Bore Design

Integrated 3-way passive crossover

Hypoallergenic, hard acrylic shells

Impedance: 25 Ohms

Sensitivity: +/- 118dB SPL @ 1mW

Freq. Response: 16Hz – 20 kHz

Noise Isolation: -18dB with ADEL™ Auto Module

1-year limited warranty