Description
64 Audio U4s
The 64 Audio U4s deliver high-performance audiophile sound at a very reasonable price. They are lightweight and comfortable, great for long listening sessions!
A quad driver hybrid UIEM featuring ground-breaking patented technologies originally developed for our flagship products in order to bring a wider audience closer to their music. U4s explores a bold new colour aesthetic for 64 Audio. The Slate Blue shell colour was influenced by some of the world’s most beautiful blue- dial timepieces while the unique face-plate pattern is inspired by Muonionalusta meteorite fragments. Both the face-plate and shell’s illuminant properties give it a unique tone in varying lighting conditions.
Its ergonomic anodised aluminium shell houses a single dynamic driver, two balanced-armature drivers, and one patented tia driver; all weaved together with our patented Tia, LID, and Apex technology. The four-way crossover is elevated with the use of our proprietary electronic low-pass filter; reducing low- frequency distortion.
The assortment of included apex modules and ear tips are an invitation to further shape the sound based on preference and source material while the ultra- low impedance premium silver-plated copper cable ensures unimpeded signal transmission. The dissemination of tia technology within our product range brings that classic 64 Audio sound signature to a new price-point.
U4s features the following unique technology:
Tia
Apex
LID
Linear Impedance Design (LID) is a patented circuit that corrects the non-linear electrical resistance of the multiple driver-sets comprising this 4 driver IEM. Varying source amplifier output impedance in devices like smartphones, body packs, DAC/amps, and DAPs typically results in varying frequency response across them, depending on the increase in resistance. Restoring proper interaction with the source and preserving the desired sound signature enables a consistent reliable sound.
Specifications
1 tia High Driver – 1 High-Mid Driver – 1 Mid Driver – 1 Dynamic Low Driver
10hz – 20kHz Frequency Response
105 dB/mW Sensitivity @1kHz
Integrated 4-way Passive Crossover
6Ω Impedance @1kHz
Apex Technology Isolation: -20dB, -15dB, -10dB, -12dB
Black Premium Cable
0.23 Ohms Total Impedance
7 x 7 x 4 Multi-Twist
Silver Plated OCC Copper Wire
26 AWG
Terminated in 3.5mm
Included
U4s Universal In-Ear Monitors
64 Audio Premium Leather Case
TrueFidelity Foam Ear Tips (S,M,L)
SpinFit Silicone Ear Tips (S,M,L)
Silicone Ear Tips (S,M,L)
3.5mm Black Premium Cable
Apex Modules: m20, m15, *m12, mX
Cable Clip
Cleaning Tool
Round Sticker
Stephen C. (verified owner) –
Lovely sounding iem’s with a quality of bass not heard before. Thanks for the recommendation Richard . Great advice as always