Line Circuit Characteristics
Reference: UK NAP200 high-end audio circuit
Minimalist design with ultra-short signal paths for reduced interference
Independent left/right channels to minimize crosstalk
Sound Signature:
Rich, full midrange
Smooth and textured vocals
Dense, impactful bass
Components & Build Quality
Output Stage: Sanken "Transistor King" 2SC2922 (equivalent to 3 pairs of standard transistors in parallel: 230V, 17A, 200W, 60MHz)
Power Supply:
4×10,000μF high-end audio-grade electrolytic capacitors
200W toroidal transformer with independent windings for left/right channels
Signal Wiring: Oxygen-free copper (OFC) cabling
Connectors: High-purity copper RCA terminals
Specifications
Weight: 6kg
Dimensions: 240mm (W) × 300mm (D) × 80mm (H)
AP Test Parameters
Tested with 8Ω / 800W load per channel

RMS Output: 23.3Vrms
Channel Gain: 28.6dB (27x amplification)
SNR: 114.4dB
Dynamic Range: 114.4dB
THD: 0.0014%
THD+N: 0.0075%
Frequency Response: ±0.273dB
Output Power: 70W × 2 (8Ω)
Input Sensitivity: 700mV