Cayin CS-100A
The Cayin CS-100A pairs tube naturalness with the grip and scale demanded by serious two-channel systems. Stereo Index found its ultra-linear mode especially rich, solid and revealing, with a three-dimensional soundstage, explosive dynamics and beautifully rounded instrumental textures. Its 80W-per-channel output brings convincing authority to orchestral, vocal and rock recordings alike.
WATT RECOMMENDS
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Nicely Roasted
Sound Quality
93/100
Build Quality
94/100
Features Connectivity
81/100
Value for Money
85/100
Pros
Delivers high detail, clarity and smoothness while retaining a natural, rounded tube character.
Creates a spacious, well-organized soundstage with precise instrument placement on complex orchestral material.
Ultra-linear mode combines rich, solid tonality with strong dynamics, sharp attack and excellent microdynamics.
Thoughtful valve-friendly construction includes soft start, adjustable bias and high-grade internal components.
Cons
Triode mode is less full-bodied and lively than the preferred ultra-linear setting.
Can sound slightly lightweight in the bass without sympathetic speaker and source matching.
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What Reviewers Are Saying
SOUND QUALITY PERFORMANCE 93/100
The CS-100A is described as a detailed, clear and notably smooth-sounding tube amplifier, with an unusually controlled and spacious presentation. The reviewer preferred ultra-linear operation, finding it more natural, rich and solid than triode mode, while still praising the latter's high detail.
Transparency Resolution
93/100
Stereo Index reports high detail, clarity and smoothness from the outset, calling the amplifier accurate and faithful in its delivery of music. Detail remains very high in both output modes, with the amplifier preserving subtle musical lines and fine gradations.
Tonal Balance Musicality
93/100
The reviewer hears a smooth, natural, airy and full-bodied character, with a pleasing roundness to individual notes. Ultra-linear mode is said to be richer, more solid and more natural than triode operation; the latter sacrifices some fullness and liveliness.
Dynamics
94/100
The review praises the amplifier's huge dynamic scale, explosive changes in volume and sharp attack, alongside excellent microdynamics. Its 80W-per-channel ultra-linear mode appears to give this valve design convincing power and composure on demanding orchestral material.
Soundstage Imaging
93/100
Stereo Index describes a three-dimensional, well-organized soundstage with clear placement of instruments, even in dense symphonic works. Instrumental groups are portrayed distinctly, giving complex recordings a stable and intelligible spatial layout.
Assessments of Build Quality, Usability, and Overall Propositions.
Build Quality
94/100
The review specifically praises the electronic implementation, citing point-to-point wiring with silver conductors, audiophile-grade capacitors, carbon-film resistors and an ALPS volume potentiometer. Soft start and user-adjustable output-tube bias further suggest thoughtful attention to valve operation and serviceability.
Features Connectivity
81/100
The CS-100A provides three RCA line inputs, a Pre-In connection for use with an external volume-controlled source, and a preamplifier output that can feed a subwoofer. It is otherwise a deliberately analogue, valve-focused integrated amplifier, with no digital inputs, streaming, phono stage or headphone output mentioned in the review.
Value for Money
85/100
At approximately $4,000 to $4,300, the CS-100A is positioned as a premium tube integrated amplifier with substantial power and carefully specified internal parts. The review is strongly enthusiastic about performance and execution, but does not directly compare its value with competing amplifiers at the asking price.
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Manufacturer's Description — Cayin
The new dual-mode Cayin Audio CS-100A tube amplifier
is rated at 80 watts per channel in Class AB Ultra-linear mode
and 50-watts per channel in triode mode. With an on-board bias meter,
the integrated amplifier can run either KT-88 or EL family tubes and uses silver internal wiring.
The CS-100A incorporates a 6SN7 tube for voltage amplification,
12AU7EH for phase inversion/voltage amplification
and 12BH7EH for voltage amplification and driver stages, with KT-88 or EL-34 output valves.
Soft-Start circuitry protects the amplifier and extends the life of internal components and tubes.
A high grade Alps volume control, audio-grade capacitors, carbon film resistors, toroidal transformer for power supply
and wide-bandwidth EI output transformers are all standard.
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Authorized dealers for Cayin CS-100A
- A Tube High Fidelity — online and in-store — Almere, Flevoland, Netherlands (website)
- A1 Futureshop — online and in-store — North Rocks, New South Wales, Australia (website)
- Addicted to Audio — online and in-store — Epping, Victoria, Australia (website)
- Advanced MP3 Players — online and in-store — Musselburgh, Scotland, United Kingdom (website)
- AES — in-store — Mitte, Hessen, Germany (website)
- Apos Audio — online and in-store — Oakland, California, United States (website)
- ARK Audio — online and in-store — Borensberg, Östergötlands län, Sweden (website)
- Art & Voice — online (website)
- Art et son — online and in-store — Montréal, Québec, Canada (website)
- Audeos — online and in-store — Żywiec, Województwo śląskie (website)
and 67 more verified dealers