A tubeless design that reduces resonance for a transparent and lifelike sound signature.
 
This pneumatically interactive vent relieves air pressure in a sealed ear canal, alleviating listener fatigue and opening the soundstage.
 
LID is a correctional circuit that presents a flat impedance to the amplifier, resulting in a sound devoid of artificial coloration.

A new way of manufacturing custom in-ear monitors preserves the details of your ear impressions for the most comfortable-fitting IEMs possible.
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1 BA low, 1 BA mid, 1 tia high | 
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Integrated 3-way passive crossover | 
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20dB w/ m20 module, -15dB w/ m15 module. Ships with M20 Module standard | 
 
IN THE BOX
- A3t Custom In-Ear Monitors
- 64 Audio Personalized Protective Case
- Dehumidifier
- Cleaning Tool
- Shirt Clip
- 48" or 64" Detachable Professional Cable
- m20 apex Modules
- Round Sticker
- Product Manual