N3 Ultra Tube Digital Audio Player
Key Specifications:
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DAC: Dual AK4493S (mono mode)
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Supported Formats: 32-bit/768kHz PCM, native DSD512
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Vacuum Tubes: Dual Raytheon JAN6418 (NOS)
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Timbre Modes: Solid State, Classic Tube, Modern Tube
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Operating System: Customized Android 8.1 (closed OS for audio)
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Display: 4.1-inch TFT multi-point touchscreen (720x1280)
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Memory: 2GB RAM, expandable with microSD card up to 1TB
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Battery: 4500mAh, up to 11.8 hours (3.5mm SS), 7.6 hours (4.4mm Tube)
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Charging: QC3.0 fast charging
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Outputs: 3.5mm SE, 4.4mm BAL (shared headphone and line out)
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Digital Interface: USB-C (USB3.1, OTG Storage, USB DAC, SPDIF)
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Chassis: Sandblasted CNC-machined Aluminum
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Dimensions: 4.9" x 2.6" x 1"
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Weight: 7.2 oz
N6iii Digital Audio Player with
User-replaceable Audio Motherboard
Key Specifications:
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Processor: Qualcomm Snapdragon 665 Octa-core 64-bit.
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Operating System: Android 12 with Google Play Store.
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RAM: 6GB LPDDR4.
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Storage: 128GB internal, expandable to 2TB via microSD.
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Display: 5.0-inch Sharp TFT, 1080x1920 resolution.
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Bluetooth: 5.0 with LDAC and UAT support.
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Audio Output: S/PDIF, USB Audio In/Out.
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Battery: 9000mAh, supports PD2.0 fast charging.
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Dimensions: 126mm x 77.8mm x 23mm.
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Weight: 295g (excluding motherboard).
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Modular Design: Quick release, tool-free motherboard installation.
C201
The C201 is the first time Cayin has used a Cirrus Logic DAC chip in a portable product. Historically, in the early 2000s, the CS4398 and PCM1792 DAC chips were dominant in the audio industry, and Cayin used them extensively in its early DAC and CD players.
The C201 audio motherboard in the N6iii features (x8) Cirrus Logic CS43198 DAC chips, arranged in a “Parallel Full-Differential Matrix DAC” design. Each DAC operates in MONO mode, receiving individual I2S signals and outputting differential signals. Groups of (x4) DACs combine for a full-differential output channel, with discrete, symmetrical power supplies ensuring stability and precise phase alignment.
E203
The DAC chip in the E203, the ES9039SPRO, was developed under the latest Hyperstream® IV architecture.
The ES9039SPRO features an 8-channel independent current output path, to align with this design, Cayin has implemented an 8-channel independent I/V (Current-to-Voltage) conversion circuit corresponding. It is followed by the LPF circuit to extract four fully-differential signals, which are then paired with a Buffer driver circuit.
R202
The Cayin R202 motherboard is a high-performance audio module built around a fully discrete, fully balanced dual-DAC architecture. It features both a 24-bit R-2R ladder DAC and a discrete 1-bit DAC, each using ultra-precise 0.1% thin-film resistors for native PCM and DSD decoding. A dual digital audio processor supports up to PCM 768kHz and DSD512, with smart triple decoding modes—automatically selecting the best DAC architecture for the input format.
RU9 Vacuum Tube Portable DAC and Amp
Specifications
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Material: CNC-machined unibody metal chassis
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DAC: (2x) AK4493SEQ
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Decoding: PCM up to 768kHz/32bit, DSD512
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Bluetooth: v5.1 with LDAC, aptX HD and aptX LL support
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Bluetooth Chip: Qualcomm QCC5125
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Battery: 2000mAh, polymer lithium-ion
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Connectivity: USB-C input
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Weight: 5oz
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Dimensions: 3.9" x 2.7" x 0.6"
Tube Warmth On-the-Go
The Cayin RU9 is the latest addition to the RU series. It is a compact, portable DAC and amp that brings the classic tube sound to your mobile audio experience. Featuring the Korg NuTube 6P1 vacuum tube, the RU9 offers audiophiles a unique blend of classic and modern sound signatures.
Classic. Modern. Solid-State.
The RU9 offers users three distinct timbre options: Classic, Modern and Solid-State. As the name implies, the Classic tube mode delivers a warm, nostalgic sonic flavor - the classic tube sound.
The Modern tube timbre yields a sweet, clear and delicate modern tube sound signature. It's harmonically cleaner, offering a quieter background while preserving the warmth of tubes.
The Solid-State mode is ideal for listening to music with its original, uncolored character. It delivers neutral tonality, fast transients and highly accurate audio reproduction.