64 Audio tia Fourté Universal In-Ear Monitor (Open Box) - Discontinued power accessories This is the same principle

This is the same principle as earphones with sealed earpieces being able to reproduce bass frequncies despite their small size

THE EXTRAORDINARY SOUND EFFECT

Closed (The housings are completely closed so incoming and outgoing noise is attenuated

2% (WTD) @ 3 kHz (JIS) Signal-to-Noise Ratio >50 dB Output Level Pre-amp “PHONO”: 4 mV nominal at 1 kHz

Listen to what you love in complete tranquillity

64 Audio tia Fourté Universal In-Ear Monitor (Open Box) - Discontinued power accessories This is the same principleAnodized Aluminum Shells Universal Fit w foam and Silicone Tips Internal apex Technology tia system: tia drivers, single bore, acoustic chambers, passive radiator 64 Audio tia Fourt Universal Fit Earphones The 64 Audio tia Fourt is a first of its kind universal fit earphone that takes full advantage of the patent pending tia system and everything weve learned up to this point in designing world class in ear monitors. The earphones are machined out of