New Products

Lassen Tweeter Simplifies 2-Way xMEMS Earbud Designs

Mark Henninger  |  Mar 27, 2025

xMEMS Labs has introduced Lassen, a new silicon MEMS tweeter for 2-way True Wireless Stereo (TWS) earbuds that eliminates the need for a separate piezo amplifier. xMEMS says this design cuts costs and power use. It also gives manufacturers more space to add advanced features. Lassen focuses on 6kHz to 20kHz, targeting clear, detailed highs.

Measuring a miniscule 3.2 x 5 x 1.15 mm, Lassen offers up to 115dB SPL from a standard 1Vrms audio output. xMEMS says the speaker consumes only microwatts of power, helping to extend battery life in compact earbuds. Removing the dedicated piezo amplifier reportedly cuts tweeter integration costs by about 25% compared to previous xMEMS solutions such as Cowell and Muir, while still delivering the company’s µFidelity (micro fidelity) performance.

For manufacturers, the transition to Lassen is simplified by xMEMS’ existing production platform. The new tweeter is fabricated in the same semiconductor wafer fabs as earlier xMEMS drivers, ensuring consistent quality and high-volume scalability. xMEMS notes that TWS designers who were impressed by its earlier high-performance MEMS speakers can now enjoy the same audio clarity without adding a separate amplification chip.

A 2-way earbud design pairs a dedicated tweeter with a low- or midrange driver, and xMEMS emphasizes that its solutions have helped raise sound quality beyond what single-driver earbuds typically achieve. Previous xMEMS speakers did require an external piezo amplifier, which some brands like Creative Labs and Soundpeats adopted, citing the significant improvement in fidelity. With Lassen, xMEMS aims to bring those benefits to a broader consumer market by simplifying the design process and lowering production costs.

Balanced armature and planar magnetic micro drivers have long been common choices for earbud tweeters, but xMEMS claims its solid-state approach delivers a higher level of detail and clarity—qualities that are increasingly in demand for spatial and high-resolution audio. Because Lassen uses a standard wafer-based production method, xMEMS also underscores the consistency and reliability of its product from unit to unit, a significant consideration for large-scale mass-market use.

By removing the barrier of needing a separate amplifier, xMEMS believes it can facilitate wider adoption of 2-way TWS earbuds. The company positions Lassen as both a cost-effective solution and a technology upgrade that helps audio brands stand out with enhanced treble performance.

COMMENTS
RobertDavidson's picture
Submitted by RobertDavidson on March 29, 2025 - 9:18am

I’ve been gambling online for a few years now, and finding a reliable platform that works well for Aussie players has always been a bit of a challenge. Some sites look good at first but turn out to be slow with payouts or have poor game selection. That’s why I was really surprised when I tried Your Ultimate Online Gambling Destination in Australia! — it ticks all the boxes for me.

I came across this site casinos-opencards.com while searching for something new, and I’m so glad I gave it a chance. The first thing I noticed was how smooth everything felt. Depositing was instant, and there were plenty of games to choose from, including my favorites — slots and blackjack. I was a bit skeptical about withdrawals at first because I’ve had bad experiences before, but to my surprise, my first cash-out went through in less than 48 hours. No hoops to jump through, no excuses, just straight to my account.

Another thing I love is the variety. Whether I want to play a quick game on my lunch break or spend a couple of hours on a weekend, there’s always something new to try. Plus, the mobile version works perfectly, which is a big deal for me. It’s rare to find a site that combines fun, reliability, and fast payouts so well. Anyone else playing here? Would love to hear your thoughts!

X