C 658
NADEstimated price (community-sourced)
Around — community and catalog average, updates slowly
About the C 658
The NAD C 658 integrates a high-performance ESS Sabre 32-bit DAC with 118dB dynamic range, BluOS streaming platform supporting services like Tidal and Qobuz, MQA decoding, and high-res formats up to 32-bit/192kHz including FLAC, WAV, AIFF, and converted DSD. It offers extensive connectivity: MM phono input, 2x line inputs, 2x optical, 2x coaxial digital inputs, USB-A for storage, Gigabit Ethernet, dual-band Wi-Fi, 2-way aptX HD Bluetooth, balanced XLR and RCA preamp outputs, dual subwoofer outputs with adjustable crossover, high-current headphone output, and 2x MDC slots for future upgrades like HDMI. Dirac Live room correction is included (limited bandwidth, full-range upgrade available), with tone controls (±7dB bass/treble), digital volume control, and short analog signal path for low distortion. It serves as a complete preamp/streamer/DAC replacing multiple components while supporting legacy analog sources.
Specifications
Digital Audio
DAC capabilities and digital audio processing
- Bit Depth
- 32-bit
- Max Sample Rate
- 192 kHz
- MQA Support
- Yes
- DAC Chip
- ESS Sabre ES9028Q2M
Analog Output
Analog signal output specifications
- THD
- 0.005%
- SNR
- 106 dB
- Output Voltage
- 2.0V RMS
- Output Impedance
- 6Ω
- Max Output Voltage
- 4.5V RMS
Connectivity
Input and output connections
- Bluetooth
- Yes
- Bluetooth Codecs
- aptX HD
- Wi-Fi
- Yes
- Ethernet
- Yes
- Digital Inputs
- USB, Optical, Coaxial
- Analog Inputs
- MM Phono, Line RCA
- Analog Outputs
- Bal XLR Pre, RCA Pre, Sub RCA, Headphone
Streaming Services
Supported streaming platforms and protocols
- AirPlay
- No
- Chromecast
- No
- Roon Ready
- No
- Spotify Connect
- No
- TIDAL Connect
- No
- Other Services
- MQA, FLAC, WAV, AIFF, ALAC, MP3, AAC, WMA, OGG, OPUS
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 434 × 99 × 406 mm (W × H × D)
- Weight
- 10.1 kg (22 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions