64 Audio U18t Tzar 18 Drivers Universal IEM Earphones [2025]
64 Audio U18t Tzar 18 Drivers Universal IEM Earphones [2025]
Guaranteed In Stock
Free next day delivery 
2-year-warranty
Trade in product
Book a Demonstration
Available to collect immediately
£2,799
Features
- Equipped with 18 balanced armature drivers per ear.
- Incorporates tia™ high driver and single-bore design.
- Utilizes apex™ modules for adjustable sound isolation.
- Features a 4-way passive crossover for seamless frequency blending.
- Offers a frequency response range of 10Hz to 20kHz.
- Delivers a sensitivity of 111 dB/mW at 1kHz.
Specifications
| Color | Imperial Red, Polished Gold |
| Material | PVD Coated Stainless Steel Faceplate Electroformed Nickel Faceplate Chip |
| Driver Configuration | 1 tia High Driver
1 High-Mid Driver 8 Mid Drivers 8 Low Drivers |
| Frequency Response | 10 Hz – 20 kHz |
| 0.78mm 2-Pin Cables | 3.5mm + 4.4mm
0.26Ω – Eight-Braid SPC 25 AWG + 23 Wires |
| Sensitivity | 111 dB/mW @ 1 kHz |
| Impedance | 9 Ω |
| Apex Isolation | -10dB to -20dB |
| Included | U18t Universal In-Ear Monitors
Carry Case |
Description
Top-of-the-line reference in-ear monitor
Packed with an unbelievable 18 balanced armature drivers per side, U18t is our top-of-the-line reference in-ear monitor. This industry-first design sits right at the boundary of what is physically possible in a UIEM. Released and developed alongside Fourté in 2016 it is the first IEM to integrate our patented tia technology with conventional IEM design, utilizing the tia high driver and single sound bore. This astonishingly complex system results in incredible detail, extension, and unmatched clarity across all frequencies.
Sound
“This is a fast set that is still smooth, similar to driving a V8 luxury car at 60 MPH without noticing any of the road noise or bumps.”
– VSG (TechPowerUp)
“Overall, the U18t is 64 Audio’s more tonally balanced and linear monitor, with reference-like tuning. Like the Fourté, it outputs outstanding levels of micro-detailing, intelligibility and air to give it that signature top-end sound.”
– Smit Patel (Positive Feedback)
“The sound results are completely convincing and meet the highest demands of stage musicians, sound engineers and audiophile music listeners without restrictions.”
– Ulf Kaiser (Headphone Check)
U18t achieves its quick bass response
U18t achieves its quick bass response, while retaining enough sub-bass amplitude, by coupling eight modified mid-drivers for the low frequency band rather than using fewer/larger drivers. Another eight low-mid drivers are required to match that amplitude in the mids. The one high-mid + one tia high driver combination became the basis for 90% of our entire product range. The extremely accurate response of U18t makes it perfect for critical audiophile listeners as well as mixing and mastering engineers. Aluminum billet shells precisely milled into our signature ergonomic shape. The PVD Stainless Steel faceplates are finished with an Imperial Red enamel like chip inlay.
Patented Technology
Tubeless In-Ear Audio (tia)
Tubeless In-Ear Audio (tia) is a patented IEM design methodology that aims to reduce unwanted resonance and distortion for a transparent and lifelike sound signature. The tia system is comprised of three major elements: open balanced armature tia drivers, the tia single-bore design, and tia acoustic chambers. U18t features two major elements of the tia system: the tia driver and the tia single-bore design.
Air Pressure Exchange (Apex)
Air Pressure Exchange (Apex) is a patented vent that releases air pressure in a sealed ear canal all while retaining standard IEM levels of isolation; enabling musicians and music enthusiasts to listen more comfortably for longer. This venting alleviates listener fatigue and allows for a much more realistic soundstage. Apex comes in four module variations for U18t: mX, m12, m15 and an exclusive PVD coated stainless steel m20 module.
SPC Eight-Braid Cable
U18t is paired with two exclusive SPC Eight-Braid Cable, one 3.5mm single-ended and one balanced 4.4mm
Warranty
Backed with a 2-year 64 audio warranty
Delivery Info
Delivery Information
As a company our primary goal is to provide a seamless service that results in customer satisfaction. We aim to deliver within 3 working days. Unfortunately, there may be occasions where this time frame may not be met due to unforeseen circumstances; in this instance, we deliver product/s as soon as we can. All delivery charges are included within the prices quoted, unless otherwise specified.
All small items are usually delivered between 9am and 6pm, on a Monday to Friday, unless a Saturday delivery is requested. Follow My Parcel is an industry-changing innovation from DPD Local, which will give your customers unparalleled levels of information and peace of mind.Not only will your customers receive a one hour delivery timeslot, but they’ll now also be able to track the progress of their parcels on a map as our drivers make their way to the delivery addresses. Follow My Parcel will:
