NAD C658

HIGH LEVEL INPUT, PREAMP OUTPUT
– Distortion (20 Hz – 20 kHz):< 0.005% at 2V output
– Signal-to-noise ratio:> 106 dB (IHF; A-weighted, 500 mV output, unity gain)
– Channel Separation:
>80dB (1kHz)
>70dB (10kHz)
– Input impedance (R and C): 22 kOhm + 100 pF
– Maximum input level:> 4.5V rms (0.1% THD)
– Output Impedance: Source Z + 240 ohms
– Input sensitivity: 93 mV (500 mV output, volume at maximum)
– Frequency Response: ±0.3dB (20Hz – 20kHz)
– Maximum output level:> 4.5V (0.1% THD)
– Tone controls: Treble:> ±7.0dB at 20kHz; Bass: ±7.0dB @ 60Hz; Balance: -10dB

PHONO INPUT, PREAMP OUTPUT
– Distortion (20 Hz – 20 kHz):< 0.01% at 2V output
– Signal-to-noise ratio:
>84 dB (200 ohm source; A-weighted, 500 mV output)
>76 dB (MM cartridge, IHF; A-weighted, 500 mV output)
– Input sensitivity: 1.44 mV (500 mV output, volume at maximum)
– Frequency Response:> ±0.3dB (20Hz – 20kHz)
– Maximum input level at 1 kHz:> 80mVrms (0.1% THD)

HIGH LEVEL INPUT, HEADPHONE OUTPUT
– Distortion (20 Hz – 20 kHz):< 0.005% at 1V output
– Signal-to-noise ratio:> 110 dB (32 ohm load; A-weighted, 2 V output, unity gain)
– Frequency Response: ±0.3dB (20Hz – 20kHz)
– Channel Separation:> 60dB at 1kHz
– Output impedance: 6 ohms

D/A CONVERTER
– Supported data formats: MP3, AAC, WMA, OGG, WMA-L, ALAC, OPUS
– Supported high-resolution data formats: MQA, FLAC, WAV, AIFF, converted DSD playback via BluOS desktop app (here only)
– Sampling rate: up to 32bit/192kHz
– Resolution: 16-24 bits

BLUOS
– Supported Operating Systems
– Music playback from networks with the following desktop computer operating systems: Microsoft Windows XP, 2000, Vista 7-10, Apple Macintosh 7-10
– Mobile operating system: BluOS™ – Free Android and iOS app available online on Google Play and Apple App Store
– Supported cloud streaming 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®: Bluetooth® aptX™ HD
– Bluetooth® connection: Bi-directional (send and receive)
– Network: Gigabit Ethernet RJ45, WLAN 5 (802.11 b/g/n)

MEASURES AND WEIGHT
– Dimensions (W x H x D)**: 435 x 100 x 405 mm
– Box weight: 10.1 kg