A new MEMS tweeter for wireless earbuds doesn't require an amplifier

image via Engadget

March 27, 2025, 1:00 PM

• •xMEMS has developed the first amplifier-less silicon tweeter for wireless earbuds
• •The tweeter is a lower-cost option for companies and can provide up to a 115dB boost in the 6kHz to 20kHz frequency range
• •Lassen will be used in a dual-driver or hybrid setup in wireless earbuds and will be available for audio manufacturers now

MEMS solid-state drivers have provided a big sound boost to wireless earbuds recently, offering the ability for companies to pack in a hybrid setup for a wider, more immersive soundstage. xMEMS' silicon-based micro speakers have been a popular choice for this purpose, with the company's Cowell and Muir drivers already appearing in products from Creative Labs and others. Now, xMEMS has developed what it calls the first amplifier-less silicon tweeter for wireless earbuds in a bid to take improved sound and efficiency even further.

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