Cayin Audio now available at Apos

We’re excited to introduce Cayin Audio products to Apos. This launch spans portable players, dongle DACs, tube headphone amplifiers, and a compact CD source, all built to fit into existing systems with ease. Whether you’re listening at a desk, on a commute, or moving between the two, the common thread is hardware you can integrate without rethinking the rest of your setup.

CAYIN N3Ultra digital audio player

• Dual AK4493S DACs operating in mono mode for improved channel separation and reduced crosstalk
  
• Gen3 vacuum tube audio circuit using Raytheon JAN6418 NOS tubes with Classic tube, Modern tube, and solid-state timbres
  
• Fully differential analog signal paths with independent left and right channel circuitry
  
• 3.5mm single-ended and 4.4mm balanced headphone outputs, delivering up to 600mW at 32Ω
  
• JRC NJW1195A four-channel electronic volume controller for accurate channel balance at low levels
  
• Dual Accusilicon femtosecond oscillators with FPGA-managed re-clocking and de-jittering
  
• Customized Android 8.1 system with DTA implementation to bypass system-level SRC
  
• Functions as a standalone player, USB DAC, or digital transport
  
• MicroSD card support up to 1TB and Quick Charge 3.0 fast charging

CAYIN RU7 discrete 1-bit dongle DAC

• Fully discrete 1-bit DAC built from 128 high-precision thin-film resistors
  
• All-to-DSD processing with user-selectable DSD64, DSD128, or DSD256 conversion
  
• PCM support up to 384kHz and native DSD support up to DSD256
  
• Fully balanced architecture with four parallel 1-bit DAC channels
  
• 4.4mm balanced output delivering up to 400mW into 32Ω
  
• 3.5mm single-ended output delivering up to 160mW into 32Ω
  
• Shared headphone and fixed-level line output modes on both outputs
  
• Discrete relay-switched resistor ladder volume control with 100 steps
  
• Dual six-layer PCB design separating digital and analog sections
  
• Low-power operation optimized for mobile devices
  
• CNC-machined metal chassis with OLED display and physical controls
  

CAYIN RU9 NuTube portable DAC and headphone amplifier

• Real Korg NuTube 6P1 dual-triode vacuum tube amplification
  
• Dual AK4493SEQ DACs operating in mono configuration
  
• Classic tube, Modern tube, and solid-state timbre modes implemented through analog circuitry
  
• Three-stage amplification design using audio-specific JFETs
  
• 3.5mm single-ended and 4.4mm balanced outputs supporting headphone and line-level operation
  
• Internal 2000mAh battery for independent portable use
  
• Hyper mode delivering up to 1000mW into 32Ω when powered by external DC supply
  
• Anti-vibration tube mounting system to reduce microphonics in portable use
  
• Magnetic rear panel for smartphone attachment
  
• Support for UAC1.0 and UAC2.0 for broad device compatibility
  
• Color display with tactile volume control and status indicators
  

CAYIN HA-3A transformer-coupled tube headphone amplifier

• Single-ended, two-stage vacuum tube circuit using matched 12AU7/ECC82 driver tubes and 6V6S output tubes
  
• Transformer-coupled, balanced-driven architecture producing native balanced and single-ended outputs
  
• Balanced output derived directly from transformer secondary windings
  
• Impedance-matched headphone outputs for low, medium, and high impedance headphones
  
• Front-panel outputs: 6.35mm single-ended, 4.4mm balanced, and 4-pin XLR balanced
  
• 22DE4 gas rectifier tube for stable and low-noise power conversion
  
• Point-to-point handwired internal construction
  
• In-house designed and shielded power and output transformers
  
• High-performance ALPS dual-unit potentiometer for precise volume control
  
• 60-second start-up delay circuit for tube and equipment protection
  
• Compact A4-sized desktop footprint with shock-absorbing foot design
  

CAYIN HA-2A transformer-coupled Class A headphone amplifier

• Single-ended Class A vacuum tube amplifier using vintage NOS tubes
  
• Power amplification via Amperex 17BF11 tubes
  
• Voltage amplification via Amperex ECF82/6U8 tubes
  
• RCA 17AX4GT rectifier tube for preamp-stage plate supply
  
• Transformer-coupled output stage with wide-bandwidth EI transformers
  
• In-house wound Z11 EI iron cores with resin-sealed metal casings
  
• Headphone impedance selector for Low (8–64Ω), Mid (65–250Ω), and High (251–600Ω) loads
  
• Headphone outputs: 6.35mm single-ended, 4.4mm balanced, and 4-pin XLR balanced
  
• Point-to-point internal wiring for short signal paths
  
• 60-second start-up delay to reduce pop noise and protect the circuit
  
• Frequency response: 20Hz–50kHz (±3dB)
  
• THD+N: 0.2% (1kHz, 100mW)
  
• SNR: 100dB (A-weighted)
  

Mini-CD MK2 compact CD player

• Precision slot-in CD mechanism designed for long-term stability
  
• Sanyo high-precision laser assembly for accurate disc tracking
  
• ESS ES9018K2M DAC with measured THD of 0.007% and 90dB SNR
  
• Selectable sample-rate conversion up to 352.8kHz (8× upsampling)
  
• Analog RCA outputs delivering standard 2V line-level signal
  
• Digital outputs including coaxial S/PDIF and I2S over HDMI
  
• High-contrast VFD display showing track and playback information
  
• CNC-machined aviation-grade aluminum chassis
  
• Compact footprint suited for desks, shelves, or small racks
  
• Included remote control for playback and SRC adjustment
  

Availability

The Cayin lineup is available now on Apos.