Specifications
Amplification
- Output power:
- 2 × 35 W RMS (THD < 3%)
- 2 × 46 W (THD < 9%)
- Audio performance:
- Frequency response: 12 Hz – 33 kHz (–3 dB)
- Total harmonic distortion: 0.2% at 1 W / 1 kHz (at 90% of rated power)
- Signal-to-noise ratio: 90 dB (A-weighted)
- Input sensitivity: 320 mV
- Input impedance: 100 kΩ
Tube Configuration
- Power tubes: 2 × 805A (triodes – Psvane)
- Driver tubes: 2 × 6L6 (replaceable with EL34, KT88, etc.)
- Preamplification: 1 × 6SN7
- Input amplification: 2 × 6JC6
Features
- Front panel analog VU meters (power indication)
- Manually adjustable bias via trimmer (integrated measurement needle)
- Hum balancer to minimize background noise
- Adjustable negative feedback level (for a more controlled or open sound)
- Robust IR remote control: source selection, volume, mute
- 6L6 tubes can be replaced (compatible with EL34, KT88, etc.)
Construction and Design
- Solid metal chassis, matte black or silver finish
- Symmetrical design and meticulous internal wiring
- Custom output transformers for stable load, even with demanding speakers
Connectivity
- Speaker outputs: dedicated 4 Ω and 8 Ω terminals
- Headphone output: front jack (compatible with 16–300 Ω)
- Analog inputs:
- 3 × RCA (LINE 1, LINE 2, LINE 3)
- 1 × Bluetooth (version 5.0)
Bluetooth Section
- Version: Bluetooth 5.0
- Chipset: Qualcomm QCC5125
- Integrated DAC: ESS SABRE ES9018K2M
- Supported codecs:
- UAT (Ultra Audio Transmission)
- LDAC, aptX HD, aptX, aptX Low Latency
- AAC, SBC
- Effective range: ≤ 10 m
- Device name: Cayin HD BT
Dimensions and Weight
- Dimensions (W × D × H): 420 × 389 × 248 mm
- Net weight: 35 kg
- Power consumption: 410 W
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