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Ch Precision I1 Universal Integrated Amplifier
The I1 is supplied in standard form equipped with four digital inputs (CH-Link HD, AES/EBU, S/PDIF and TosLink – although a second identical digital input board can be added in the spare chassis slot if you need the extra connections) one set of balanced and two pairs of single-ended analog inputs. The factory fitted Ethernet Control Board, which allows the unit to be remotely accessed, configured and controlled via the CH-Control Android App, can be replaced with a full network streaming capable Ethernet input and a separate, asynchronous USB input card can be added to enable connection of computer sources for file replay. All digital inputs are fully MQA compatible, while our latest proprietary, fixed-point PEtER spline filtering and updated DSP deliver accurate and musically natural digital decoding. The discrete, fully-complementary analog input boards can be fitted with additional internal circuit blocks that allow owners to convert either or both of the RCA analog inputs into current-sensing MC phono-inputs, complete with switchable replay EQ settings for RIAA, eRIAA, Decca, Columbia, EMI and Teldec (DGG) curves.
Finally, a Clock- Sync board allows you to slave the I1 to external master clocks, or designate its internal clock as the system master. Dominating the interior of the I1 chassis, you’ll find a massive 1000VA transformer that’s more than capable of supporting the 100 watt/channel into 8 Ohms rated output; in combination with the 100,000uF of reservoir capacitance it allows the output stage to handle awkward loudspeaker loads with ease.
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Ch Precision I1 Universal Integrated Amplifier
The I1 distills CH Precision's engineering into a modular, all-in-one package that excels at transparency and imaging. Greg Weaver -- Enjoy the Music.com and Alan Taffel highlight its refined midrange bloom, incisive detail retrieval and an expansive, three-dimensional soundstage. The 100Wpc Class A/AB output delivers surprisingly muscular low-end slam for its power class, while the hybrid analog/digital volume and the upgradeable DAC/streamer and phono modules provide long-term flexibility. Build is Swiss-grade — heavy chassis, precision controls and an intuitive CH Control app. Ideal for audiophiles seeking a compact reference system or a single-box high-end hub that can grow with optional cards. With firmware-driven DAC improvements and broad functionality, the I1 stands out as a future-ready, highly capable integrated solution.
Pros
- Exceptional transparency and refined midrange bloom with finely resolved detail and expansive imaging.
- Modular, upgradeable architecture and firmware-updatable DAC let the I1 improve over time and add streamer/phono functions as needs change.
- Surprisingly authoritative bass and controlled dynamics for a 100W/ch amplifier, delivering slam and low-end grip with capable speakers.
- Exemplary build and user experience — heavy, precision chassis with a polished CH Control app for intuitive system management.
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Cons
- Onboard phono module is very capable but does not quite match the transparency and bloom of top-tier standalone phonostages.
- Nominal 100 Wpc output can be a limitation in very large rooms or with extremely demanding, low-sensitivity speakers for the deepest octaves.
- A minority of listeners report a slightly lean or dry presentation on certain vintage recordings.
Sound Quality
92/100
Dynamics
92/100
Despite a nominal 100 Wpc output, reviewers report authoritative, controlled dynamics and surprising bass slam (Greg Weaver: firmer grip on deepest bass than any 100‑watt amplifier he's heard; TAS: drives challenging speakers like the Wilson Sasha V). Comparisons to higher‑output CH amps indicate the I1 is light-on-its-feet yet rarely runs out of steam, supporting an exceptional dynamics rating for its power class.
Soundstage Imaging
92/100
Multiple sources describe expansive, three‑dimensional staging and rock‑solid image focus (EnjoyTheMusic: spatial recreation 'exceptional', images 'stable and rock‑solid'; TAS post‑upgrade: 'mesmerizing timbral diversity, fleshed‑out images'). Reviewers highlight a holographic quality on strong recordings and excellent depth and layering.
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Build Quality
92/100
Reviewers emphasize exceptional mechanical and electrical engineering: substantial chassis and weight (75 lb), modular architecture, and precise construction ('designed and built to exacting technical and mechanical standards'). The I1's modularity and upgrade path also contribute to a perception of longevity and premium build.
Features Connectivity
92/100
Modular architecture supports DAC, phono module (high‑gain MM/MC capability), and optional digital modules; reviewers praise the on‑board phonostage and high‑quality DAC. With a flagship DAC module, a full phono option, digital inputs and a polished remote/app experience (CH Control), the I1 exceeds a basic feature baseline and rates as a fully featured integrated platform.
Value for Money
96/100
Across reviews the I1 is repeatedly called an exceptional value for its level—EnjoyTheMusic calls it an 'absolute steal' and 'true bargain', and multiple reviewers note that CH's upgradeable architecture (including free/low‑cost firmware/DAC improvements) extends longevity and lowers long‑term cost. Reviewers consistently argue its performance justifies the high price in its market segment.
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