502 vs C521i
The C521i's signal-to-noise is 107 dB against the 502's 105 dB, its output voltage 2.1V RMS against 2.0V RMS, and its output impedance 250Ω against 120Ω. Both share thd (0.003%).
AI-generated product photo — not official manufacturer imagery.
DigitalCD PlayersDiscontinued
Estimated price (community-sourced)
$100
Around — community and catalog average, updates slowly
About the 502
The NAD 502 is a single-disc CD player manufactured by NAD (New Acoustic Dimension) from 1992-1995, developed as an evolution of the acclaimed NAD 5425 model. It incorporates a fully revised internal layout and superior components optimized for performance, utilizing Sony CD mechanism and sophisticated D-to-A circuitry. The player features digital output capability for connection to external digital recorders, DAT, DCC, or mini disc devices, making it 'future proof' for its era. The 502 received critical acclaim, with Stereophile magazine stating in April 1994 that 'You won't do better for twice the money.' The unit is no longer manufactured but remains sought after by vintage audio enthusiasts for its exceptional sound quality relative to its original price point.
Specifications
Digital Audio
DAC capabilities and digital audio processing
- DAC Chip
- MN6474AM
Analog Output
Analog signal output specifications
- THD
- 0.003%
- SNR
- 105 dB
- Output Voltage
- 2.0V RMS
- Output Impedance
- 120Ω
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Digital Outputs
- coaxial
- Analog Outputs
- line output
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 420 × 93 × 295 mm (W × H × D)
- Weight
- 6 kg (13 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions