NAD C658 BluOS Streaming DAC

NAD C658

The NAD C 658 is a new kind of stereo component, one that at once changes preconceptions and opens new possibilities for audio reproduction. You see, there has never before been a component offering such a rich palette of both new and proven technology. Bold statements?

LINE INPUT, PRE-OUT

THD (20Hz – 20kHz)
<0.005% at 2V out

Signal-to-Noise Ratio
>106dB (IHF; A-weighted, ref. 500mV out, unity gain)

Channel separation

• >80dB (1kHz)
• >70dB (10kHz)
  
  

Input impedance (R and C)
22 kohms + 100pF

Maximum input signal
>4.5Vrms (ref. 0.1% THD)

Output impedance
Source Z + 240 Ohm

Input sensitivity
93mV (ref. 500mV out, Volume maximum)

Frequency response
±0.3dB (20Hz – 20kHz)

Maximum voltage output – IHF load
>4.5V (ref. 0.1% THD)

Tone Controls Treble
>±7.0dB at 20kHz; Bass: ±7.0dB at 60Hz; Balance: -10dB

PHONO INPUT, AUDIO PRE-OUT

THD (20Hz – 20kHz)
<0.01% at 2V out

Signal-to-Noise Ratio 

• >84dB (200 Ohm source; A-weighted, ref. 500mV out)
• >76dB (MM cartridge source, IHF; A-weighted, ref. 500mV out)
   

Input sensitivity
1.44mV (ref. 500mV out, Volume maximum)

Frequency response 
>±0.3dB (20Hz – 20kHz)

Maximum input signal at 1kHz 
>80mVrms (ref. 0.1% THD)

LINE INPUT, HEADPHONE OUT

THD (20Hz – 20kHz)
<0.005% at 1V out

Signal-to-Noise Ratio 
>110dB (32 Ohms loads; A-WTD, ref. 2V out, unity gain)

Frequency response 
±0.3dB (20Hz – 20kHz)

Channel separation
>>60dB at 1kHz

Output impedance
6 Ohms

DAC

Supported audio file formats
MP3, AAC, WMA, OGG, WMA-L, ALAC, OPUS

High resolution audio formats
MQA, FLAC, WAV, AIFF, Supports converted DSD playback via the BluOS desktop app (only)

Native sampling rates
up to 32bit/192kHz

Bit depths
16 – 24

BluOS

Supported operating systems
Plays music from network shares on the following desktop operating systems: Microsoft Windows XP, 2000, Vista, 7, 8 to current Windows Operating Systems and Mac OS X versions

User interface mobile operating system
luOS – Free Android and iOS App available online at Google Play and Apple App store

Supported cloud services 
Spotify, Amazon Music, TIDAL, Deezer, Qobuz, HDTracks, HighResAudio, Murfie, JUKE, Napster, Slacker Radio, KKBox, Bugs

Free internet radio
TuneIn Radio, iHeartRadio, Calm Radio, Radio Paradise

Bluetooth quality
Bluetooth aptX HD wireless built-in

Bluetooth connectivity
Two-Way (Transmit and Receive)

Network connectivity

• Gigabit Ethernet RJ45
• WiFi 5 (802.11 ac/n)

DIMENSIONS AND WEIGHT

Dimensions (W x H x D)**
435 x 100 x 405mm (17 1/8 x 3 15/16 x 16)

Shipping Weight
10.1kg (22.3lb)