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SKU CS-845A
Cayin - CS-845A - Integrated Tube Amplifier
by Cayin
$8,999.00
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Cayin CS-845A SET – Single-Ended Class A Integrated Tube Amplifier
Pure Class A Tube Amplification with 845 Power Tubes and German Engineering Excellence
The Cayin CS-845A SET Integrated Tube Amplifier stands as a flagship Single-Ended Triode (SET) amplifier, crafted to deliver pure Class A tube sound with unmatched clarity, warmth, and resolution. Engineered with German precision and built with premium components, this masterpiece redefines high-end audio with exceptional hand-selected tubes, silver-plated internal wiring, and a design focused on both sonic purity and aesthetic sophistication.
Key Features
🔸 Iconic Tube Configuration
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WE6SN7 tube for voltage amplification
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300B driver tube
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845 output tube – the soul of SET amplification
This combination guarantees a harmonic-rich, high-resolution listening experience, with fluid mids, airy highs, and effortless dynamics.
🔸 24W per Channel of Pure Class A Power
Despite being a single-ended design, the CS-845A SET delivers a robust 24 watts per channel, making it compatible with a wide range of high-efficiency speakers.
🔸 Adjustable Negative Feedback (NFB)
Tailor your listening experience by adjusting the negative feedback between 0dB (open, expressive sound) and -3dB (tight, controlled response) — all via remote control.
🔸 Preamp and Power Amp Flexibility
Use it as an integrated amplifier or switch to power amp mode via the pre-in input for flexible system integration.
🔸 Hand-Wired Silver-Plated Signal Paths
Internally wired with silver-plated signal cables, ensuring ultra-clean signal transmission and minimal loss of detail.
🔸 Premium Power Supply
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Oversized toroidal transformer with low stray fields for powerful, noise-free performance.
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Soft-start delay circuit protects the tubes and extends their lifespan.
🔸 German Craftsmanship
Meticulously tuned and built under German engineering principles, the CS-845A SET represents the pinnacle of audiophile tube design.
🔸 Elegant Design
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Brushed aluminum front panel with vintage-style aesthetics
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Top-mounted potentiometers for easy bias adjustment
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Gold-plated speaker terminals
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Remote-controlled functionality
| Specification | Details |
|---|---|
| Designed and Tuned | In Germany |
| Amplifier Type | Single-ended Class A integrated amplifier |
| Signal Cables | Silver-plated signal cables, freely wired |
| Output Transformers | EI type, designed for extreme bandwidth |
| Supply Voltage | Large-sized toroidal transformer |
| Tubes Used | WE6SN7 (voltage gain), 300B (driver), 845 (output) |
| Negative Feedback Factor | Adjustable between 0 dB and -3 dB NFB |
| Volume Control | High-quality encapsulated Alps potentiometer with motor drive |
| Additional Feature | Pre-amp input for operation as a pure power amp |
| Power Output | 24W + 24W (RMS at 4Ω and 8Ω) |
| Protection | Tube-friendly soft-start on-delay for high voltage supply |
| Frequency Range | 10Hz – 26kHz (-3dB) |
| Harmonic Distortion (THD) | > 3% (1kHz) |
| Signal to Noise Ratio | 90dB |
| Input Impedance | 100 kΩ |
| Input Sensitivity (RMS) | 300mV RMS (Line), 1000mV RMS (Pre-In) |
| Tubes (Total) | 2 × WE6SN7, 2 × 300B, 2 × 845 |
| Inputs (RMS) | 3 × Line, 1 × Pre-In |
| Output | 1 × Tape Out |
| Circuit | Class A, Single Ended |
| Front Panel | Silver |
| Speaker Impedance Taps | 4Ω, 8Ω |
| Dimensions (W × D × H) | 420mm × 389mm × 240mm |
| Mass | 37 kg |
| Domestic Equipment | Metal remote control, integrated bias meter |
