Grimm MU1 Streamer
Best high-end streamer for audiophiles seeking uncompromising digital sound quality.
The Grimm MU1 Streamer is the ultimate digital music source, engineered for unparalleled high-end audio reproduction. It minimizes audible aberrations in digital-to-analog conversion with an in-house FPGA interface and Grimm Audio's signature ultra-low jitter clock. The MU1 comes with Roon Server integrated for an immediate, rich user experience. While it integrates perfectly with the LS1 system, it also functions excellently as a source for third-party DACs. This versatile streamer is housed in a cabinet defined by minimalistic elegance.
$14800.00
Owner Satisfaction
4.8
/ 5
Category Rank
7
/ 492
#7 in Stereo Music Streaming Devices
Price vs Category Average
+293%
Above average
Dimensions
35585295
/ x x mm (WxHxD)
Who it's for
- Audiophiles demanding professional-grade timing and minimal jitter
- Listeners seeking maximum fidelity from lower-resolution digital files
- Roon users wanting a streamlined, all-in-one server solution
Who should skip it
- Listeners preferring a simple, plug-and-play native interface
- Budget-conscious buyers seeking entry-level streaming options
- Users wanting an all-in-one streamer with built-in analog conversion
Performance breakdown
Jitter suppression
Proprietary clocking technology virtually eliminates timing errors for pristine digital signal.
Roon integration
Native server implementation provides a seamless and highly responsive listening experience.
Build quality
Minimalist chassis design exudes premium durability and sophisticated aesthetic appeal.
System versatility
Functions flawlessly as a standalone source or within the LS1 ecosystem.
Digital connectivity
Comprehensive input options accommodate a wide range of high-end audio setups.
User interface
Browser-based control offers intuitive management across all your connected devices.
Key Specs
Dimensions
355 x 85 x 295mm (WxHxD)
Connectivity includes AES, S/PDIF, and optical digital inputs
Features Ethernet connectivity
Supports Wi-Fi 5 (802.11ac) standard
Operating System
Linux-based
Storage
Optional internal SSD, external USB and NAS supported
Remote control included
Warranty
5 year limited warranty
Features
- Ultimate digital music source
- Roon Server integrated
- Ultra-low clock jitter
- Seamless integration with LS1
- Supports all sample rates and formats
- Web control via any browser
- External storage support
- Tidal and Qobuz streaming support
What customers say
The Grimm MU1 Streamer earns high praise for its unparalleled sonic purity and technical sophistication. Users consistently report an exceptional transparency and natural audio presentation, allowing connected digital to analog converters to perform optimally. This performance is often linked to its advanced clocking technology, which delivers an effortless and highly resolving sound, free from digital artifacts. Beyond sound, the build quality and seamless Roon integration contribute to a premium user experience. While the ultimate sound quality garners profound admiration, the substantial investment required remains a significant consideration for many potential buyers in the high-end market.
Know before you buy
Yes, the MU1 is a digital music source and streamer, not a DAC. You will need to connect it to an external DAC via its AES, S/PDIF, or optical outputs to convert the signal to analog.
The MU1 is designed around the Roon ecosystem, and Roon Server is integrated directly into the device. While it is the primary interface for the streamer, you should plan on having an active Roon subscription to utilize the device's full capabilities.
The MU1 is managed through the Roon interface, which consolidates your local files and streaming services like Tidal and Qobuz into one library. For system-level settings and configuration, you can access the MU1's web interface through any standard browser.
Yes, the MU1 supports an optional internal SSD for local storage. Additionally, it is compatible with external USB drives and network-attached storage (NAS) if you prefer to keep your library off-device.
Absolutely. While the MU1 is optimized for seamless integration with the Grimm LS1 system, it is engineered to function as a high-performance source for any third-party DAC via its digital outputs.
The MU1 features Wi-Fi 5 (802.11ac) connectivity, allowing for wireless network integration. However, for the most stable performance and to ensure the highest audio quality, a wired Ethernet connection is generally recommended.
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$14800