PSB M4U 4 High Performance In-Ear Headphones

Model: M4U4AW UPC: 627523170685 Item: 1074


Regular Price: $299.00

Save: $150.00 (50%)

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754 Route 309 (Bethlehem Pike) Montgomeryville, PA 18936
  • Mon - Fri: 9:30am - 6pm
  • Sat: 9:30am - 3pm
  • Sun: 12pm - 5pm
(215) 368-8343
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38 Greenfield Avenue, Ardmore, PA 19003
  • Mon - Fri: 10am - 6pm
  • Sat: 10am - 5pm
  • Sun: Closed
(610) 649-7002
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Beautiful stereo sound, taken with you wherever you go - the PSB M4U 4 In-Ear Headphones recreate the perfect soundstage within the confines of your ears. Using PSB's high definition technologies, like RoomFeel, you'll be entranced by the feeling of having a full set of speakers playing right through your eardrums. And it's ergonomically sound, so you can wear these headphones all day and during strenuous activity in comfort.

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PSB M4U 4 High Performance In-Ear Headphones

PSB gets up close and personal with your hi-fi. They've 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 their popular M4U Headphone Series with PSB's very own innovative RoomFeel Technology that has won praise throughout the world.


PSB M4U 4 In-Ear Headphones Highlights:

  • 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


PSB M4U 4 In-Ear Headphones Features:

Good Sound Comes in Small Packages

  • With scientifically developed RoomFeel technology, 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. The M4U 4 features a two-way Hybrid Dual-Driver System of dynamic and balanced armature drivers for true hi-fi listening.

Ergonomically Sound

  • These small and lightweight portable in-ear monitors are also designed for convenience 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. Two fully detachable cables are included, one with a 3-button Apple remote with microphone for answering and making phone calls.

Comply Foam Tx-200 Series Eartips

  • The M4U 4 is supplied with Comply Foam Tx-200 Series Eartips for perfect in-ear fit and comfort. Made with high-tech, super-soft memory foam that is heat-sensitive and breathable, the Comply Foam Tx-200 Series Eartips conform to the dynamic shape of the ear canal. The foam's passive noise-reduction technology seals out unwanted ambient noise and pours pure music directly into your ears, without leaking bass. These eartips are extraordinarily soft and comfortable for long-term wear. Simply enjoy clear, crisp sound.
  • Standard silicon gel tips, a convenient carrying case, and stereo and airplane adaptors round out the M4U 4 accessories.


PSB M4U 4 In-Ear Headphones Specifications:

Frequency Range

  • -10 dB: 10Hz-20kHz
  • -3 dB: 15Hz-20kHz
  • +/ 1-1/2 dB: 20Hz-20kHz

THD, Total Harmonic Distortion

  • 1kHz/1mW: 0.25%

Power Handling

  • Maximum: 10mW


  • Nominal: 16 Ohms


  • Type: Hybrid Dynamic and Balance Armature
  • Operating Principle: Multi-Chamber Vented Design
  • Size: 8mm Dynamic, Single BA

Ear Coupling

  • In-Ear


  • 3.5mm (1/8") Stereo Jack


  • Standard Cable
    • Length: 1.2m (47")
    • Type: Detachable Tangle-free w/3 pole
  • Apple Cable
    • Length: 1.2m (47")
    • Type: Detachable Tangle-free w/4 pole


  • Driver Enclosure: ABS
  • Eartip Type: Comply Foam Tx-200 and Silicon
  • Travel Case: EVA

Size (W x H x D)

  • Travel Case: 110 x 70 x 25mm


  • 25g with cable


  • Detachable Cables
  • Replaceable Eartips
  • 2-Way System with Crossover
  • Ergonomic Design
  • Comfortable low profile fit for active listening
  • In-line Remote Control
  • Around Ear Cable Placement


What's In The Box:

  • Formed Travel Case
  • 1/8" to 1/4" (3.5mm to 6.3mm) Gold-plated Stereo Plug Adaptor
  • Airline Connection Adaptor
  • Carabiner Clip
  • 3 x Comply Foam Tx-200 Eartips (S, M, L)
  • 3 x Silicon Eartips (S, M, L)


Customer Reviews for PSB M4U 4 High Performance In-Ear Headphones

4.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Comfortable & Good SQ
You need to find a good fit to get a good sound quality. Other that this, the earphones are very comfortable, no issues with the cable and they have a nice warm sound signature.
March 12, 2018
5 months ago


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