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Ch Precision M1.1 Two-channel Reference Power Amplifier
The problem is that although power amps themselves might appear simple, their job is anything but straightforward. Caught in a sandwich between the output of a line-stage or DAC and the load requirements and sensitivity of any number of different loudspeakers, they must be able to accommodate the widest range of partnering equipment and interface parameters presented to any unit in the audio system. Achieving optimum results under such varied conditions demands a capable and versatile performer – yet as we’ve already established, most power amps offer a single, brute force solution to the problems they face, instead of adopting a more sophisticated response. It’s time for a change – it’s time to meet the CH Precision M1.1, a new-paradigm in power amplification.
What sets the M1.1 apart? It goes without saying that the M1.1’s sonic and musical performance challenges the state-ofthe- art, an incredibly short audio signal path executed with exacting component choices and construction, a massive power supply providing absolute stability and unfettered headroom, capable of meeting both the most delicate and most massive musical demands. But what makes the M1.1 really different is its software driven housekeeping capabilities, a non-intrusive support network that does more than just keep the amplifier unconditionally stable.
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Ch Precision M1.1 Two-channel Reference Power Amplifier — Overview
The CH Precision M1.1 delivers reference-class power with a rare combination of authority and finesse. Reviewers like Jim Swantko and Audiophilepure praise its tight, weighty bass, crystalline midrange, and extended, non-fatiguing treble, and its exceptional soundstage and imaging. Engineering details — pure Class-A input stages, ExactBias circuitry, large toroidal transformers and massive reservoir capacitance — underpin the amp's control, dynamics and three-dimensional presentation. Build quality and fit-and-finish are described as second-to-none, while networked control and feedback-ratio adjustment offer deep system tailoring. This amp suits serious audiophiles with demanding speakers and large systems who want the last bit of resolution and impact from their recordings. Despite its lofty price, reviewers argue the M1.1 elevates systems and is likely to hold value.
Pros
- Reference-level dynamics and control — tight, weighty bass and articulate transients that reveal inner detail.
- Extraordinary soundstage and imaging with pinpoint placement and vivid three-dimensional depth.
- Impeccable build and extensive system customization (adjustable feedback ratio, network control and user-configurable display).
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Cons
- Large, heavy chassis that can be difficult to place or fit into typical racks.
- Audible relay/turn-on clicks heard through speakers during startup on some systems.
- Control app is Android-only; no iOS application limits convenience for Apple users.
- On very minimally miked recordings there can be a slight reduction in hall reverberation/air compared with other presentations.
Sound Quality
96/100
Dynamics
96/100
Reviewers repeatedly praise the M1.1's authority and transient grip: notes 'never went there' (i.e., never softening transients), 'kick drums add a heartbeat effect', and the amp 'drives' recordings with extended decay and articulation. Statements about delivering headroom, detail and not softening transients support a near-reference dynamics rating.
Soundstage Imaging
95/100
Soundstage and imaging are repeatedly described as 'rock-solid', 'vividly three-dimensional', with 'pinpoint precision' and an 'inky black background' that makes images pop and hold position — evidence of exceptional spatial performance.
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Build Quality
96/100
Build and fit-and-finish are called 'second to none', with outstanding machining, invisible seams and a stylish faceplate; reviewers emphasize workmanship and attention to detail, supporting a near-reference build score.
Value for Money
87/100
Reviewers note the amp will 'certainly hold value' and describe its capabilities and engineering, but offer no explicit language like 'worth every penny' or 'steal'. Given the high price (≈$52k each / $104k pair reported) and positive but restrained commentary on value, a neutral-to-slightly-positive baseline score is appropriate.
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