Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- The LS1a strives for an objective, uncolored transfer of music that enchants by its naturalness and lack of exaggeration
- The LS1a presents the entire acoustic spectrum, sounding silky and extremely coherent
- The LS1a creates a wonderfully reliable spatial image with tangible foreground and wide panorama with almost reference depth
- Neutrality, precision, resolution, and spatiality is virtually unattainable by classic systems with passive loudspeakers
Product Considerations
- The presentation is flat as a ruler, so despite not sounding sterile, terms such as light, dark, warm and cold do not have much to say
- The LS1a requires a DAC to play
Takeaway: The LS1a is a phenomenal loudspeaker that will change the way audiophiles judge this type of design because of its neutrality, precision, and spatiality. It presents the entire acoustic spectrum, sounding silky and coherent.
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Manufacturer details
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- The brand utilizes a custom-coded FPGA for precise digital filtering, which it believes outperforms standard DAC chip filters.
- Grimm Audio emphasizes clocking accuracy (low jitter) over achieving the highest possible PCM or DSD sample rates, incorporating a proprietary, ultra-stable clock design.
- The MU1 runs a custom Linux operating system and an optimized Roon Core Server implementation, moving away from standard libraries to exercise complete control over the code.
- They offer an end-to-end music system with a consistent design philosophy, from digital source to active loudspeakers, for an expertly-tuned audio chain.
Select products
MU1
- Positioning: Positioned as the ultimate digital music source in Grimm Audio's lineup.
- Description: Features an in-house-designed FPGA interface board that ensures high-quality format conversion and ultra-low jitter. Compared to the MU2, focuses more on digital output and integration with systems like the LS1. Supports a wide range of digital inputs and outputs, making it compatible with various high-end audio systems, but lacks the analog preamp and DAC integration found in the MU2.
MU2
- Positioning: Serves as a versatile hub in Grimm Audio's lineup, combining a music streamer, DAC, and analog preamp.
- Description: Features integrated Major DAC and relay-based analog volume control, offering seamless handling of both digital and analog sources. Unlike the MU1, includes a high-performance DAC and analog preamp, making it suitable for users who want an all-in-one solution for both digital and analog audio.
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Used
Grimm Audio
What if you spend more?
Product Strengths
- Visually appealing with a distinctive, elegant, and small form factor, fitting well in smaller spaces and under monitors
- Good build quality and finish, using excellent materials, which creates a sense of pride of ownership
- Powerful sound for its size, offering ample audio presence and dynamic headroom
- Comprehensive control app that is stable, logical, and offers extensive functionality, including room calibration
- Coaxial design of the satellite speakers aims to improve stereo focus and time alignment
Product Considerations
- Sound can be bottom-heavy or 'wonky' with an overemphasis on bass that dominates the overall sonic signature
- Treble can be sharp, edgy, or unruly, especially at higher volumes
- The included remote control is more stylish than ergonomic and can be unresponsive, requiring re-pairing
- Lacks an HDMI input, which limits connectivity options, especially for TV use
- Fixed wiring of the satellite speakers can be inconvenient if shorter cables are needed
Comparisons (according to reviewers)
- The KEF LS50 offers better-balanced sound and superior sound quality overall
- Genelec is more utilitarian in design
- The SVS Prime Wireless Pro and sub combo sounds better, but lacks the sex appeal
- The Devialet has more intense bass, but isn't as balanced or natural as The Pearl Keshi
Takeaway: The Cabasse Pearl Keshi offers audiophile sound in a stylish and compact package with innovative features. It could be a good fit if one wants a visually striking and complete audio system that can fit in a tight space.
Video review
Our take on the brand
Product Strengths
- Powerful and deep bass response for its size
- Clear and natural sound reproduction, with vocals being particularly noteworthy
- An 'all-in-two' system, the RIALTO includes a streamer, DAC, pre-amp, and amp, making it easy to set up and use, especially with the Cabasse StreamCONTROL app
- Effective room correction helps to optimize the sound for the listening environment
- Elegant design and build quality
Product Considerations
- The lack of seamless gapless playback between digital tracks requires a workaround or use of an analog source
- The RIALTO has a laid-back treble response, which may not appeal to listeners who prefer a brighter sound
- Potential for technical hiccups exists, because of the amount of technology packed into the RIALTO
- Many features are controlled with the mobile app
Comparisons (according to reviewers)
- The RIALTO provides a more balanced—and much more natural—listening experience than the Devialet Phantom II 98 dB Stereo
Takeaway: The Cabasse RIALTO is a compact and elegant audio system that offers powerful sound and a range of integrated features, making it a great choice for music lovers who want an easy-to-use and high-performing system. The sound quality and room correction allow it to adapt well to different listening spaces, offering an immersive experience.
Video review
Our take on the brand
The SCM50 ASL (active) and SCM50 SL (passive) are designed to perform at their best in the recording studio or at home with the finest quality hi-fi equipment. The monitors' ability to reproduce music and speech with phenomenal accuracy, transparency and dynamics lies mainly in the SM75-150S soft dome midrange driver. However, recent modifications that include the new ATC SH25-76S tweeter and enhanced port profile have brought about further improvements to all performance parameters.
Each drive unit in the active model has its own dedicated and individually matched MOS-FET amplifier, while the 234mm/9″ bass driver incorporates ATC's unique Super Linear Magnet technology. Our active crossover network consists of a wide band-width, electronically balanced input stage with high common mode rejection and very low distortion. Like the HF, mid and bass drivers, all electronics are designed and manufactured in-house to create a no-compromise active system.
In passive form, the SCM50 SL provides broad and symmetrical dispersion, excellent amplitude and phase characteristics throughout the frequency range. Speakers are supplied with stands and fabric wrapped grills.
Available Finishes
Standard Veneers – Cherry, Walnut, Oak & Black Ash.
Standard Paints – Satin Black, Satin White
Premium Veneers (up-charge applies) – Rosewood, European Crown Cut Walnut, Pippy Oak, Burr Magnolia, Burr Poplar.
High Gloss (up-charge applies) – Clear High Glossed Veneer, Piano Black, Piano White
Our summary
Product Strengths
- ATC designs and builds every drive unit in-house, including voice coils, crossovers, and active amplification, allowing for complete control over every loudspeaker design decision
- In the active version, a more clearly defined soundstage has clearer, more well-defined individual elements, where everything pops out more from the background
- The active version has more energy, drive, and a more vivid overall presentation, resulting in a more tactile, energetic, and higher resolution sound
- The SCM50's woofer has an enviable ability to resolve textures and timbral colors, capably rendering the skins of bass drums, the flutter of tom-toms, or the dark voicing of orchestral bass viols as bows are dragged across their strings
- The SCM50 has an almost eerie immediacy that seems to glean the intent of the musician before their bow touches the string or a note escapes their lips, making piano reproduction breathtaking
- Connectivity is limited to a single XLR input, which may require adapters for single-ended sources
Product Considerations
- The active version is heavier than the passive version
- The owner must manually turn each speaker on and off, as there is no trigger or auto startup circuit
- The active version may pose challenges for owners of subwoofers needing high-level wiring connections, although workarounds exist
- Careful attention must be paid to positioning a pair of SCM50s, as the full-bandwidth—ported design means that placing them too close to a boundary wall will result in bass bloom
Comparisons (according to reviewers)
- SCM50 wins hands down over PureAudioProject Duet 15s for resolution, clarity, and dynamic shading
- The active version excels over the passive in solidity of soundstage, neutrality, and ultimate detail retrieval
Takeaway: The ATC SCM50 offers exceptional sound quality, whether in its active or passive configuration, thanks to ATC's engineering and in-house design. The ATC SCM50 is a choice that will bring musical joy for years to come.
Video review
Our take on the brand
Product Strengths
- Improved phase or timing enhances stereo imaging and creates a clearer overall picture
- The active version removes a 'filter' between the listener and the original source, making music more intense, energetic—and vivid—resulting in higher resolution audio
- Vocals are presented bigger, taller, grander in scale, with more detail and insight—most impressively—how natural they sound
- Dynamics and micro-detail are impressive, expressed in ambient noises, breaths of singers—and fingernails of guitarists
- ATC monitors are designed to provide the best from both areas: detailed and accurate with limited dynamic range, and professional monitors with great dynamic range and fidelity
Product Considerations
- ATC speakers like to be played loudly, like the original event, and live music isn't created at volume levels for going to sleep; if you like to be lulled by your audio system, look elsewhere
- The speakers get quite a bit heavier with the amplifier packs in them
- You have to manually turn each speaker on and off, as there is no trigger system designed into them
- System organisation and cabling has to be considered because it might be quite different to how you have things wired now in a passive system, and this could mean extra cost on top
- If you don't have an amplifier to connect your high level wiring to, you would need to either use a preamplifier with an output you can use, or maybe use a splitter on the balanced cable
Comparisons (according to reviewers)
- Vs ATC SCM50 PSL (Passive): The active SCM50 ASL is more vivid overall, while the passive is more 'cuddly'
- Vs ATC SCM20: The 50s are more like the same person—only bigger
Takeaway: The SCM50 ASL offers a technically better and more vivid listening experience due to its active design, bringing listeners closer to the original sound. If one wants a speaker for serious listening and appreciate high-resolution audio, this could be a great choice.
Video review
Our take on the brand
What competes at this price?
Our Summary
Product Strengths
- The Focus 50 offers a unique proposition by bridging the gap between audiophiles and Sonos customers, offering a solution for both
- A pleasing mixture of being quiet, easy going and relaxed, but also with very good timing, clarity and information
- The Dynaudio app is simple and easy to use; it lets users adjust the frequency balance of the speakers sound between dark, neutral and bright
- The Focus 50 delivers a lot of bass output with fantastic extension, tightness, control, grace, and smoothness if placed correctly in the room
- The sealed cabinet design likely makes the Focus 50 more flexible for placement
Product Considerations
- The most important connectivity option missing is HDMI, which is a big omission
- Sometimes, the overall sonic resolution could be higher
- The treble can be a little too smooth at times
- Although wireless connection is possible, the Focus 50s sound noticeably better if the two speakers are connected together with a cable
Comparisons (according to reviewers)
- Compared to the Evoke 50 paired with $5,500 worth of gear, the Focus 50's performance could not be matched
Takeaway: The Focus 50 provides excellent sound quality combined with flexibility and ease of use, making it a great choice for those with limited space but who still desire stellar sound. It fits different needs and offers high end sound that can be very impressive.
Video review
Our take on the brand
Our Summary
Product Strengths
- Wide soundstage with evident front-to-back depth
- Clear and detailed midrange response with good separation of instruments such as guitars and pianos
- Balanced low-end response allowing for clearer definitions in bass notes
- Precise time alignment contributes to accuracy, focus, and a uniform dispersion pattern
- Detailed and airy top-end combined with a reach-out-and-touch-it three-dimensional width and imaging in the midrange
Product Considerations
- Not an inexpensive monitor
- At 41kg, it is also very heavy
- At the large end of the nearfield monitoring spectrum—it's a midfield, really
- Lacks DSP (Digital Signal Processing) found in many modern monitors, relying on traditional electro-acoustic design
Comparisons (according to reviewers)
- Vs ATC SCM25A: Maintains a more balanced low-end response, while ATC SCM25A exhibited a slight bump in the lower mids
Takeaway: The Amphion One25A is an accurate and revealing mix tool with a perfect tonal balance, making it a good investment for professional use. Its low-end provides an utterly secure foundation for everything above, and it retains its dimension and punch at normal, moderate listening levels.
Video review
Our take on the brand
Our Summary
Product Strengths
- The DSP5200 Special Edition introduces a newly designed, short-horn-loaded beryllium dome tweeter that is lightning fast and significantly extends the frequency range
- The speakers produce a ton of rich bass with resolution and detail
- Setup is startlingly simple using Meridian's SpeakerLink
- The striking design has a very modern aesthetic
- The beryllium tweeter does a magnificent job of oozing detail, space, and air into the room
Product Considerations
- Pricey
- Limited connection possibilities
- Maximum 96kHz
- Going beyond stereo requires suite of Meridian electronics
Takeaway: The Meridian DSP5200SE loudspeakers sound terrific and have simple setup. They will be magnificent additions to any home lucky enough to have them.
Video review
Our take on the brand
Our Summary
Product Strengths
- Luxurious texture sound
- Equipped with Bluetooth/WiSA
- A pair of chic 175-watt branded Telos amplifiers are on board
Product Considerations
- Very high price
Takeaway: The Goldmund Pulp brought Goldmund into the compact wireless speaker segment with great success, delivering luxurious sound. It proves the brand can make iconic products outside of their usual ultra-expensive range.
Video review
Our take on the brand
Our Summary
Product Strengths
- Elegant design with slim aluminum housings
- High-quality transducer technology
- Remarkable flexibility in feed options, including wireless
- Precise and controlled reproduction with highest impulse fidelity due to closed construction and DSP linearisation
- Room calibration ensures detailed, dynamically balanced, and natural sound even with imperfect room acoustics
Takeaway: The Piega Premium Wireless Series Gen2 offers a simple way to create a modern, premium hifi system. It provides high sound quality without sacrificing much space, offering all the functions expected from a modern hifi setup.
Video review
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