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A Blog-zine about Audio

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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

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

Twittering Machines: LS1c is a magical looking glass

Michael Lavorgna checked out our LSc system with his MU1 streamer and experienced a one-to-one communion with the music. His review reads as a long love letter to the LS1c’s abilities to present his favorite music in the purest form possible. And at the end Michael offered the LS1c his “favorite speakers” award… Treat yourselfread more >

August 22, 2025

Vinyle & Audio: MU1 presents music in all its authenticity

The French magazine Vinyle & Audio is well known for publishing a balanced mix of music album and audio equipment reviews. Their author Jean Razzaroli put the MU1 to test and was highly impressed.  “The Grimm Audio MU1 sounds incredibly transparent and resolving. It is able to extract more details than most other streamers thatread more >

February 28, 2025

Twittering Machines: MU1 in favorite gear 2023

US online hifi magazine Twittering Machines has put the MU1 in their ‘favorite gear 2023’ list!  Michael Lavorgna writes: “Making digital music feel human is not as easy as 1s and 0s. The Grimm MU1 adds the heart & soul: “For anyone looking to bring more refined beauty to their music while simplifying streaming andread more >

December 14, 2023

Twittering Machines: MU1 is musically breathtaking

Michael Lavorgna published a stunningly positive review of the MU1 in his well known webzine Twittering Machines. He offers a few technical details of the MU1 to the reader, but mainly writes about his listening experience with a selection of beautiful music albums. His full review is a must read, but we cannot resist copyingread more >

November 2, 2023

HifiPig: 5 Hearts for LS1be & MU1

The UK based online magazine with the illustrious name “Hifi Pig” did a review of the LS1be & MU1 system. Stuart Smith loved it as an end-game system for audiophiles that outgrow their box fetishes. He offered it “5 Hearts”! Below is a short excerpt, please read the full article here. “What I loved aboutread more >

April 3, 2023

WAM: MU1 shows how far digital has come

On UK’s busy forum Hifi Wigwam (or WAM) an ‘official review’ of the MU1 was published by George Sallit. And he is seriously impressed…  “The Grimm MU1 digital music source is one of those products that have come along and challenged all those fables and (giving the game away) improve the sound quality of bog-standardread more >

February 21, 2023

HifiCritic: MU1 pushes the emotional buttons

In the latest issue of HifiCritic, journalist Kevin Fiske reviews the MU1 and is touched by its magic. So much even that he offers it the HifiCritic Audio Excellence Award. We are happy to offer the full review pdf for you to read. Some excerpts are copied below. “With PCM and DSD files, the MU1 exhibitsread more >

February 3, 2023

Audiophile Style: 5 stars for MU1 

Audiophile Style is a very active high end audio forum and it also features regular reviews by its founder Chris Connaker. Inspired by the many enthusiastic MU1 users on his forum pages, Chris did a review of the MU1 and concluded that it is a great sounding ‘set and forget’ unit and clearly the rightread more >

November 2, 2022

Lowbeats: MU1 opens up new musical worlds

After a very positive experience with the LS1be, German Lowbeats editor Jürgen Schröder became curious for the MU1. In his recent MU1 review he did a comparative listening test and often found these two words in his notes: “clearly better”. “The music played from the MU1 sounded more defined, direct, tangible, more colorful, with sharperread more >

September 5, 2022

Steve Huff: “MU1 is Digital Nirvana”

Steve Huff runs a very personal online review blog for many years. “Reviews from the heart” is his credo and that’s the case without any doubt. Initially Steve focused on cameras and lenses, but since a few years he mainly writes about audiophile equipment. The MU1 for sure triggered his heart… Please enjoy some excerptsread more >

August 18, 2022

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Designed & made in the Netherlands

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