64 Audio – Fourté

The pinnacle of IEM technologies

64 Audio Fourté is the apex of portable in-ear innovation, taking full advantage of everything 64 Audio has learned up to this point in planning world-class in-ear monitors. Designed for professional artists as well as audiophiles. Fourté has the most extensive soundstage amongst in-ear monitors, making it the culminate choice for audiophiles looking for pinpoint accurate accuracy, with top-tier three-dimensional sound.

Fourté highlights 64’s three-part Tia™ framework, housed in an ergonomic shell design, machined from a solid piece of aluminum and topped with rich, copper patina faceplates.

64 Audio – Fourté Tia™ technology

Apex venting technology

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 music enthusiasts to listen more comfortably for longer. This venting alleviates listener fatigue and allows for a much more realistic soundstage. Apex is integrated in Fourté all the way down to the way the shell is milled, offering similar pressure release and isolation to the m20 module.

64 Audio – Fourté Specifications

• Driver Type/Count: 3 precision BA drivers, 1 dynamic driver
• Driver Configuration: 1 tia high, 1 high-mid, 1 tia mid, 1 dynamic low
• Frequency Response: 5Hz – 22KHz
• Sensitivity: 114db @1kHZ @1mw
• Impedance: 10 Ω @ 1kHz
• Crossover: Integrated 4-way passive crossover
• Isolation: -20dB internal apex technology