The new wireless in-ears employ hybrid planar technology and an integration with Audiodo for a seriously personalized listening experience.

Pickering, Ontario, February 22, 2024— PSB Speakers, one of the first premium hi-fi loudspeaker brands to enter the headphone market over 10 years ago, announces the M4U TWM earbuds are now available for purchase. The headphones, originally announced at Axpona 2023, now feature improved engineering and better componentry to deliver a stunning presentation of musical detail. Additionally, through a partnership with Audiodo Personal Sound™, the user can set up sound personalization options along with PSB’s proprietary RoomFeel™ technology. The new wireless in-ear headphones are available to purchase for CA$ 299 / US$ 199.

True Wireless Micro Planar Earphones

The M4U TWM earbuds leverage powerful Magneto-Static technology in a Hybrid Planar dual-driver design, utilizing the same technology found in high-end magneto loudspeakers and fitting them into remarkably compact earbuds. Dedicated transducers, one for high frequencies and one for low frequencies, work together to make the in-ear listening experience truly pristine, reproducing sound with crisp highs, natural midrange, and deep lush bass. Enhanced aptX™ Adaptive Bluetooth technology offers up to 24-bit high-definition audio quality.

The M4U TWM are sweatproof, water resistant, and dustproof, making them well-suited for active audiophiles to use in the gym, during cycling or running, and even on a long commute. Convenient features like hard click buttons on both earphones make music control and voice calls hands-free and intuitive, while a smart USB-C charging case delivers a maximum of 32 hours of extended play time (8 hours out of the case and 3 additional charge cycles in the case).

Sound Optimization with Audiodo Personal Sound™

An integration with Audiodo Personal Sound™ technology is one of the M4U TWM’s most unique features. The breakthrough technology allows listeners to calibrate their headphones to accommodate the listening qualities of their left and right ears independently. After completing a quick and easy hearing assessment accessed through the PSB Headphones app, Audiodo Personal Sound™ maps out a precise and thorough understanding of the listener’s hearing, calculates what changes need to be made based on personal sound perception, and formulates a compensation curve for the listener that can be applied to the overall headphone sound.
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Natural RoomFeel™ Tuning

Created to deliver rich and natural sound through headphones, the next generation of PSB’s proprietary RoomFeel technology mimics the experience of listening to a pair of high-quality, full-range speakers properly set up in a good room. Carefully developed using research and expertise around ‘Room Gain’—the energy and warmth that room boundaries add to the response curve of a flat-measuring loudspeaker—RoomFeel makes the music feel less ‘in the head’ by recreating an open and natural in-room listening experience through the M4U headphones.

​PSB Headphones App

All headphone settings, including Audiodo Personal Sound™ tests and Transparency modes are accessed centrally through the PSB Headphones app, a full-featured app that allows users to adjust settings, check battery levels, and regularly keep the headphones up-to-date with the latest firmware updates and codes.
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Key Features of the M4U TWM

• Wireless auto-pairing with any Bluetooth™ enabled device
• Qualcomm aptX Adaptive Bluetooth™
• Magneto-Static, Hybrid Planar dual driver design
• Lightweight, secure fit suits any active lifestyle
• Activate voice assistants or use hard click buttons for hands-free calling and music control
• Rechargeable with 8 hours of playback and 24 hours in the smart charging case for 32 hours of total extended play time
• Protection against sweat, dust and weather
• RoomFeel™, Audiodo™ and cVc™ (clear voice capture) technologies built-in
• 3 sizes of silicon tips for customizable fit

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About PSB Speakers

Since 1972, Founder and Chief Designer, Paul Barton, has been cementing his legacy as an expert in designing and building high-fidelity speakers that incorporate scientific principles in psychoacoustics. More than 50 years later and now a strategic part of Lenbrook International’s global portfolio, PSB Speakers’ products are sold in more than 70 markets where the brand sets the standard for “True to Nature” sound and is critically acclaimed for its value-driven and non-fatiguing speaker design. With an expansive suite of products that include audiophile speakers, ANC headphones, powerful and musical subwoofers, and a family of installed speaker solutions, PSB Speakers is designed and built to bring life to recorded music at world class levels.