xMEMS Labs has announced a new innovation for delivering micro fidelity audio to mass-market consumer earbuds. Called xMEMS Lassen, this new micro-speaker delivers up to 115dB SPL in the 6kHz to 20kHz frequency range from a standard 1Vrms audio output, without the need of additional amplification. Measuring just 3.2 x 5 x 1.15 mm and consuming only microwatts of power, xMEMS says Lassen significantly reduces the barriers of entry to broad deployment of 2-way TWS wireless earbud audio.
The previous xMEMS Cowell and Muir MEMS speaker solutions for 2-way earbuds required a separate piezo amplifier chip. However, with xMEMS’ Lassen, no amplifier is required – freeing up space in TWS earbuds for other advanced features while delivering that same superior sound quality and soundstage as previous xMEMS technologies.
And because Lassen is manufactured in the same high-capacity semiconductor wafer fabs as other xMEMS products, it enjoys superior semiconductor-level quality and scalability, so TWS designers know they can deliver consistent, repeatable sound quality across their TWS earbud designs.
By removing the amplifier requirement, xMEMS was able to reduce the cost of tweeter integration by roughly 25 percent. This puts solid-state MEMS speaker technology squarely on-par with other micro tweeter solutions, including balanced armature and planar magnetic drivers. However, neither of those technologies can match xMEMS’ speaker technology for detail and clarity, which are fast becoming requirements for high-res and spatial audio.
Samples of the xMEMS Lassen TWS Tweeter are available now, with mass production scheduled for September 2025.
For more information about xMEMS, Lassen, and µFidelity audio, visit xmems.com.
See also: New Near Field MEMS Micro Speaker Announced By xMEMS Labs
