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Grimm MU1

New MU1 and MU2 firmware improves sound quality and solves bugs

In new firmware for the MU1 and MU2 we offer a small but worthwhile improvement of the DSD filtering sound quality in the MU2 and of the PCM and DSD filtering in the MU1. We also addressed a couple of robustness issues that could happen in rare use cases, among others a spurious indicated coefficientread more >

July 6, 2026

Grimm Audio at brand new Asia Hi-fi Expo in Singapore

One of the world’s largest Hi-Fi publications Stereonet makes a strong move by founding a major new show in Singapore: Asia Hi-fi & AV Expo. It will be held from July 10-12 in the famous Marina Bay Sands hotel. Grimm Audio is present and exhibits in room 3910. We will show our two core productread more >

July 4, 2026

Grimm Audio at T.H.E. SoCal show 2026

June 26-28 T.H.E. SoCal show will be held in Hilton Orange County Costa Mesa (CA). T.H.E. Show is America’s longest-running HiFi Audio Show (now in their 29th year). It is a cornerstone event for anyone passionate about high-quality audio and home entertainment. Like previous years, Grimm Audio exhibits together with our Anaheim dealer The Audioread more >

June 25, 2026

Robert Harley: Axpona’s Best Sound Award

As usual, the press covered the large shows in the US and Canada extensively and they also visited our demo rooms. We love to share a few stories with you. At the Axpona show, Robert Harley of The Absolute Sound and Michael Lavorgna of Twittering Machines by coincidence set side by side when Eelco Grimmread more >

April 24, 2026

Grimm Audio at Axpona 2026

We exhibit at the well known Axpona High End Audio Show in Chicago, April 10-12. Eelco Grimm and our sales director North America John-Paul Lizars will make sure you get a great demo in room 1530. Experience the elegance and unparalleled performance of the LS1c digitally controlled loudspeaker with SB1 motion feedback subwoofer and MU1read more >

April 5, 2026

Ukiro Music: LS1c shatters the glass ceiling

In the past months Ola Björling achieved great succes with his Ukiro Music Youtube channel. Recently he published a series of active loudspeaker reviews and since Ola loves our MU2 so much he was eager to check out the LS1c with SB1 subs and MU1 source. He soon got deeply impressed by the amazing resolutionread more >

March 28, 2026

Grimm Audio at Montreal Audiofest 2026

We team up with our Montreal dealer Lemay Audio to present our products at the great Montreal Audiofest show on March 20-22. Grimm Audio’s sales director North America John-Paul Lizars welcomes you to a wonderful demo of our active LS1c, SB1 and MU1 system. And in a second demo room the MU2 and PW1 takeread more >

March 17, 2026

Eelco Grimm in Axpona 2026 Audio Insider podcast

With Axpona 2026 on the horizon, Lenny Florentine of Audio Insider invited Eelco Grimm for a podcast about the backgrounds of Grimm Audio and our products. Since Eelco was teaching at HKU University of the Arts, Academy of Music & Technology, on the scheduled recording day, he used HKU’s Control Room 3 for the interview.read more >

January 23, 2026

Improved firmware for MU1 and MU2

Last month’s firmware update of the MU1 and MU2 brought many changes. Our software team anticipated that errors would unavoidably creep in with such a big revision and so they stood by to address all reported issues. While they were at it, they managed to squeeze out even more performance from the MU1 code. Soread more >

December 2, 2025

Haute Fidélité: MU1 is a true master of digital files

Bruno Castelluzzo did a review of the MU1 and praised it highly in the French printed magazine Haute Fidélité. He even offered it the Haute Fidélité Référence award! We are happy to offer you the original French text as pdf, and a few translated sentences below. “It is hard not to become impressed by theread more >

November 28, 2025

Grimm Audio in 11 rooms at CAF show

November 14-16 the Capital Audiofest will be held. In Washington DC’s premier high-end audio festival Grimm Audio products will be on demo in no less than 11 rooms! First of all you are welcome to visit Room 755 where our sales director North America John-Paul Lizars presents the LS1c and MU1 with his famous collectionread more >

November 10, 2025

Big firmware update for MU1 and MU2

We are very happy to let you know that we just released a big firmware update of our MU1 and MU2 streamers. For the first time it becomes possible to use the MU1 and MU2 with other network streaming sources than Roon since we added support for UPnP and Tidal Connect. Via UPnP popular musicread more >

November 4, 2025

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Designed & made in the Netherlands

Designed & made in the Netherlands

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