Westone W40 Quad-Driver with 3-Way Crossover In-Ear Monitor Headphones


The Westone W40 Quad-Driver with 3-Way Crossover In-Ear Monitor Headphones are designed for the serious audiophile to provide an ultimate experience in sound reproduction. It is used in various devices such as for iPods, tablets computers, field recorders, smartphones, and more. This quad-driver headphone features a frequency response of 10 Hz to 18 kHz. It uses four balanced-armature drivers in conjunction with a 3-way crossover to provide another level in the listening experience. It features 25 dB passive noise attenuation to suppress outside noise.

The W40 replaceable cable is a braided EPIC cable. There is also a round MFI cable with 3-button control and mic. This cable allows control for Apple products including volume +/-, tracking +/-, phone answer, and Siri activation. The W40 is built with exchangeable faceplates in black, blue and red with secure attachments. A weather-resistant vault case with foam interior, EPIC 50" removable cable, MFI cable, comfort ear tips, and cleaning tool are included.

Key Features

  • Compatible with iPod, iPhone, and iPad portable devices (also works with Android - compatible cable sold separately)
  • The W40 is a low-profile, lightweight, universal earpiece which delivers maximum comfort and in-ear coupling for dynamic transfer of sound
  • 25 dB passive noise attenuation helps to isolate outside noise in the environment resulting in a better quality
  • By combining multiple balanced-armature drivers with sophisticated crossover networks this in-ear monitor provides clear detail and enhanced frequency range
  • Westone EPIC removable cable is an ultra-supple braided cable design that provides comfort and resists tangles
Sensitivity 118 dB SPL @ 1 mW
Frequency Response 10 Hz to 18 kHz
Impedance 31 Ω @ 1 kHz
Noise Attenuation 25 dB passive
Driver Four balanced-armature drivers with a 3-way crossover
Cable EPIC removable cable and MFI G2 cable
Cable Length 50" (128 cm)
Weight 0.445 oz (12.7 g)

Packaging Information

Package Weight 0.7 lb
Box Dimensions (LxWxH) 7.244 x 4.331 x 2.284"
In The Box
Westone W40 Quad-Driver with 3-Way Crossover In-Ear Monitor Headphones
Monitor Vault Case
Premium Comfort Ear Tips
3-Button Apple Control System + Microphone
50" EPIC Replaceable Cable
Cleaning Too
Exchangeable Faceplate (Black, Red, Blue)
Limited 2-Year Warranty