M4U 1 – Passive Headphones

Take the rich, natural sound of PSB everywhere you go.

Enjoy the sonic realism and precision of PSB bookshelf and stereo speakers, in an affordable over-ear headphone with a closed-backed design that keeps your music sealed inside the super soft ear pad. Utilizing PSB’s proprietary RoomFeel™ technology and decades of psychoacoustics research for the most accurate sound experience, M4U 1 headphones provide the detail and clarity that audiophiles demand. M4U 1s are designed like all other M4U Series headphones, providing you with super soft ergo-fit ear pads and a cushioned headband in a lightweight fold-and-go design that is easy travel. Plus, with a tangle-free cable that includes an inline mic and three-button remote, controlling music and taking calls is simple and hassle-free.

Immersive sound wherever you go.
M4U 1 headphones are made to go where you and your music go, bringing you the most accurate sound everywhere you listen. Designed and scientifically tested by PSB’s founder and legendary acoustic engineer, Paul Barton, and carefully fused with the M4U 1’s internal headphone drivers, RoomFeel delivers a truly immersive experience for music, movies and videos, and brings you closer than ever to your favourite recordings. With PSB M4U 1 headphones, you’ll always be with the well-balanced, amazing sound of PSB.

Designed for comfortable all-day listening
Working in close collaboration with one of New York’s most renowned industrial designers, David Farrage, PSB designed their class-leading noise-cancelling headphones with premium high-quality materials that set them apart. Lightweight with super soft two-way adjustable ear pads and an expandable headband, the M4U 1 is the perfect everyday headphone, providing you with a custom fit that lets you listen in style and comfort.

Take calls and control music with ease
Designed to work with your phone, tablet, and other mobile devices, M4U 1 headphones put music and call controls at your fingertips with a tangle-free cable that has an inline mic and three-button remote control. Plus, with many custom features suited for the most popular phones, you can seamlessly switch back and forth between your favourite Spotify playlist and making plans with friends with easy-to-use controls. Even activate your phone’s voice assistant as you go about your listening.

  • Developed with PSB’s proprietary RoomFeel technology for speaker-quality sound
  • Comfortable, durable and lightweight with a soft padded headband and earcups
  • Take calls and control your music easily with the three-button cable controls/mic
  • Fully detachable cables that can be plugged into either the left or right ear cup
  • Compact fold-and-go design and protective case that travels with you
  • Standard tangle-free cable and an extra set of super soft ear pads are also included

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More Information
Price $0.00
wireless_speaker No

Frequency Response

LF Cutoff -10dB 10-20,000Hz
LF Cutoff -3dB


Within ±1 1/2dB 20-20,000Hz


1kHz/1mW 102dB

Power Handling

Maximum 30mW


Passive 32 Ohms




Operating Principle




Ear Coupling

Ear Coupling




1/8”* (3.5mm) Stereo Jack (Left or Right)


Headband Polycarbonate
Driver Enclosure


Earpads/Headpad Cover Leatherette
Travel Case EVA

Dimensions / Weights / Finish

Overall 7 7/8 x 7 7/8 x 2 7/8” * (200 x 200 x 70mm)
Ear Cushion Outside

2 3/4 x 3 7/8 x 3/4” * (68 x 98 x 17mm)

Weight 12oz (340g)
Finish Black Diamond, Baltic Grey or Monza Red

* Non-metric measurements are approximate.

** Some finishes may not be available in all models and/or all countries.

All specifications are subject to change without notice.


Push Function Cable or Apple Control

59”* (1.5m) Detachable Tangle-free


Data Sheet - Dutch

M4U 1 Dutch Data Sheet (PDF) (900.25 kB)

Data Sheet - English

M4U 1 English Data Sheet (PDF) (885.07 kB)

Data Sheet - French

M4U 1 French Data Sheet (PDF) (897.89 kB)

Data Sheet - German

M4U 1 German Data Sheet (PDF) (902.55 kB)

Data Sheet - Italian

M4U 1 Italian Data Sheet (PDF) (904.33 kB)

Data Sheet - Portuguese

M4U 1 Portuguese Data Sheet (PDF) (902.74 kB)

Data Sheet - Russian

M4U 1 Russian Data Sheet (PDF) (810.01 kB)

Data Sheet - Spanish

M4U 1 Spanish Data Sheet (PDF) (909.06 kB)

Data Sheet - Swedish

M4U 1 Swedish Data Sheet (PDF) (899.65 kB)

Data Sheet - M4U Headphone Feature

M4U Headphone - Feature Sheet (PDF) (350.59 kB)

Manual - M4U1 Quick Start Guide

M4U1 Quick Start Guide (PDF) (855.79 kB)

Manual - M4U Earpad Replacement instructions

M4U Earpad Replacement instructions (PDF) (53.68 kB)

Manual - M4U Series Owners Guide

M4U Series Owners Guide (PDF) (170.16 kB)