In Ear High Definition Headphones

Regular Price:$299.00 / Each
Your Price:$249.00 / Each
You Save:$50.00 / Each

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Warranty Terms (Parts and Labor) 2 years
Free Shipping to the Continental US? Yes

PSB M4U 4 In Ear High Definition Two-Way Earphones.

PSB gets up close and personal with your hi-fi.
PSB has taken over 40 years of bringing REAL SOUND to REAL PEOPLE and packed it into their exciting M4U 4 High Definition In-Ear Monitors. You're listening to music more than ever before, but now you can do it on-the-go in comfort and style with PSB's true-to-nature sound quality. The M4U 4 High Definition In-Ear Monitors are the latest addition to the  popular M4U Headphone Series with PSB's very own innovative RoomFeel™ Technology
that has won praise throughout the world.

Good Sound Comes in Small Packages
PSB's first in-ear monitor is a unique two-way Hybrid Dual-Driver Design that the design team was able to implement PSB's innovative RoomFeel™ technology with greater precision. RoomFeel is their scientifically developed transfer function that adds back the acoustic signature of the typical listening room to create a more spacious and realistic presentation of recorded music. You will be amazed that these in-ear M4U 4s allow you to experience the sound of high performance speakers in a perfect listening room wherever you go.

Two Drivers are Better than One
Balanced armature drivers have very low moving mass making them ideal for reproducing high frequencies with great transient response and detail. Musical textures are finely wrought, bringing great insight into the music and clearly delineating individual instruments and their unique voices. The precision balanced armature driver used in the M4U 4 is individually calibrated to meet its exacting response tolerances. A wave guide is used to link the sound tube of the
balanced armature driver to the woofer, creating time-aligned driver integration. A miniature PCB using surface mount parts creates the electrical crossover network that divides the signal between drivers. The moving coil dynamic woofer is no less unique, tuned for accurate response with three separate  chambers, creating an aperiodic loading that smooths response and suppresses resonances. The result is deep, deep bass response that is punchy and crisp without sounding fat or boomy.

Ergonomically Sound
These small and lightweight portable in-ear monitors are also designed for people on the move. The comfortable low profile ergonomic design and around-the-ear cable placement ensures that the M4U 4s stay in place for active listeners. The distinctive detachable cable design also allows the M4U 4s to be reversible! You have a choice of looping the cord over and around your ear, or you can swap the left and right colour-coded sides to allow the cable to drop down in front of your ear. PSB included two fully detachable cables for your convenience, one with a 3-button remote with microphone for answering and making phone calls.

Ergonomic Design Wax Guard
Simply enjoy clear, crisp sound. Standard silicon gel tips, a convenient carrying case, and stereo and airplane adaptors round out the M4U 4 accessories. In addition to the three sizes of soft silicone eartips, the M4U 4 is 3 x Silicon Eartips (S, M, L) supplied with ComplyTM Foam Tx-200 Series Eartips with wax guard for perfect in-ear fit and comfort. Made with high-tech, super-soft memory foam that is heat-sensitive and breathable, the ComplyTM Foam T x-200 Series Eartips conform to the dynamic shape of your ear canal, forming an air-tight seal. The foam's passive noise-reduction technology seals out unwanted ambient noise and pours pure music directly into your ears, and provides amazing bass extension. These eartips are extraordinarily soft and comfortable for long-term wear.


  • Two-way Hybrid Dual-Driver Design with Moving Coil Dynamic low frequency driver and Balanced Armature high frequency driver
  • Precision crossover network
  • Two tangle-free cables, one with in-line remote, microphone, and telephone controls
  • Unique detachable cables with removable shirt clip
  • Made for iPhone certified
  • 1/4" stereo and 1/8" dual input flight adaptors
  • Small, Medium and Large pure silicone eartips
  • Small, Medium and Large Comply Foam ™
  • Tx-200 ear tips with wax guard supplied
  • Convenient protective travel case
  • Carabiner travel clip

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Spearit Sound
296 Nonotuck St
Florence , MA 01062
United States
Ph: 4135849547
Fax: 413-585-5139
e-mail: jtozzi@spearitsound.com

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