AMPLIFIERS
NAD C 658
BluOS Streaming DAC
AMPLIFIERS
NAD C 658
BluOS Streaming DAC
- overview
- specifications
- features
- gallery
- downloads
The NAD C 658 stands as a groundbreaking stereo component, transcending preconceptions and ushering in new possibilities for home audio. It embraces the evolving landscape of music distribution, seamlessly blending streaming with cutting-edge digital technology. This all-in-one unit integrates a Network Streamer, advanced DAC, and key elements of a traditional Preamplifier, delivering exceptional value. NAD’s Modular Design Construction ensures future-proof adaptability. Notably, an optional HDMI 4k switcher module enhances compatibility with various HDMI sources. Beyond replacing or supplementing your Streamer, DAC, and Preamp, the C 658 introduces features like a Bluetooth aptX HD transmitter for wireless headphones. Its versatile outputs support balanced connections, while a sophisticated MM Phono input and digital subwoofer crossover further enhance its capabilities, making it the ideal choice for the best stereo system at home.
The NAD C 658 stands as a groundbreaking stereo component, transcending preconceptions and ushering in new possibilities for home audio. It embraces the evolving landscape of music distribution, seamlessly blending streaming with cutting-edge digital technology. This all-in-one unit integrates a Network Streamer, advanced DAC, and key elements of a traditional Preamplifier, delivering exceptional value. NAD’s Modular Design Construction ensures future-proof adaptability. Notably, an optional HDMI 4k switcher module enhances compatibility with various HDMI sources. Beyond replacing or supplementing your Streamer, DAC, and Preamp, the C 658 introduces features like a Bluetooth aptX HD transmitter for wireless headphones. Its versatile outputs support balanced connections, while a sophisticated MM Phono input and digital subwoofer crossover further enhance its capabilities, making it the ideal choice for the best stereo system at home.
| LINE INPUT, PRE-OUT | |
|---|---|
| LINE INPUT, PRE-OUT THD (20Hz – 20kHz) | <0.005% at 2V out |
| LINE INPUT, PRE-OUT Signal-to-Noise Ratio | >106dB (IHF; A-weighted, ref. 500mV out, unity gain) |
| LINE INPUT, PRE-OUT Channel separation | >80dB (1kHz) |
| LINE INPUT, PRE-OUT | >70dB (10kHz) |
| LINE INPUT, PRE-OUT Input Impedance (R and C) | 22 kohms + 100pF |
| LINE INPUT, PRE-OUT Maximum input signal | >4.5Vrms (ref. 0.1% THD) |
| LINE INPUT, PRE-OUT Output impedance | Source Z + 240 Ohm |
| LINE INPUT, PRE-OUT Input sensitivity | 93mV (ref. 500mV out, Volume maximum) |
| LINE INPUT, PRE-OUT Frequency response | ±0.3dB (20Hz – 20kHz) |
| LINE INPUT, PRE-OUT Maximum voltage output -IHF load | >4.5V (ref. 0.1% THD) |
| LINE INPUT, PRE-OUT Tone Controls Treble | >±7.0dB at 20kHz; Bass: ±7.0dB at 60Hz; Balance: -10dB |
| PHONO INPUT, AUDIO PRE-OUT | |
|---|---|
| PHONO INPUT, AUDIO PRE-OUT THD (20Hz – 20kHz) | <0.01% at 2V out |
| PHONO INPUT, AUDIO PRE-OUT Signal-to-Noise Ratio | >84dB (200 Ohm source; A-weighted, ref. 500mV out) |
| PHONO INPUT, AUDIO PRE-OUT | >76dB (MM cartridge source, IHF; A-weighted, ref. 500mV out) |
| PHONO INPUT, AUDIO PRE-OUT Input sensitivity | 1.44mV (ref. 500mV out, Volume maximum) |
| PHONO INPUT, AUDIO PRE-OUT Frequency response | >±0.3dB (20Hz – 20kHz) |
| PHONO INPUT, AUDIO PRE-OUT Maximum input signal at 1kHz | >80mVrms (ref. 0.1% THD) |
| LINE INPUT, HEADPHONE OUT | |
|---|---|
| LINE INPUT, HEADPHONE OUT THD (20Hz – 20kHz) | <0.005% at 1V out |
| LINE INPUT, HEADPHONE OUT Signal-to-Noise Ratio | >110dB (32 Ohms loads; A-WTD, ref. 2V out, unity gain) |
| LINE INPUT, HEADPHONE OUT Frequency response | ±0.3dB (20Hz – 20kHz) |
| LINE INPUT, HEADPHONE OUT Channel separation | >>60dB at 1kHz |
| LINE INPUT, HEADPHONE OUT Output impedance | 6 Ohms |
| DAC | |
|---|---|
| DAC Supported audio file formats | MP3, AAC, WMA, OGG, WMA-L, ALAC, OPUS |
| DAC High resolution audio formats | MQA, FLAC, WAV, AIFF, Supports converted DSD playback the BluOS desktop app (only) |
| DAC Native sampling rates) | up to 32bit/192kHz |
| DAC Bit depths | 16 – 24 |
| BluOS | |
|---|---|
| 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 |
| BluOS THD (20 Hz – 20 kHz) | luOS – Free Android and iOS App available online at Google Play and Apple App store |
| BluOS Supported cloud services | Spotify, Amazon Music, TIDAL, Deezer, Qobuz, HDTracks, HighResAudio, Murfie, JUKE, Napster,Slacker Radio, KKBox, Bugs |
| BluOS Free internet radio | TuneIn Radio, iHeartRadio, Calm Radio, Radio Paradise |
| BluOS Bluetooth quality | Bluetooth aptX HD wireless built-in |
| BluOS Bluetooth connectivity | Two-Way (Transmit and Receive) |
| BluOS Network connectivity | Gigabit Ethernet RJ45 |
| BluOS | WiFi 5 (802.11 ac/n) |
| DIMENSIONS AND WEIGHT | |
|---|---|
| DIMENSIONS AND WEIGHT Dimensions (W x H x D)** | 435 x 100 x 405mm (17 1/8 x 3 15/16 x 16) |
| DIMENSIONS AND WEIGHT Shipping weight | 10.1kg (22.3lb) |
BluOS™ Integration
The NAD C 658 seamlessly incorporates BluOS, the pinnacle of High-Res streaming. This sophisticated system supports over 15 music services and indexes 250,000 tracks locally. The C 658 serves as a BluOS node, facilitating high-res network streaming across 64 zones with iOS, Android, Windows, and Mac OS compatibility.
NAD Classic Series Excellence
Part of the esteemed Classic Series, the C 658 upholds NAD’s legacy of delivering outstanding performance and value. Eschewing lavish aesthetics, it prioritizes state-of-the-art features. Crafted for music lovers seeking top-tier performance without unnecessary frills, this component provides unparalleled value in a robust, no-nonsense package.
High-Resolution Audio Prowess
With a 45-year history of High-Res components, the C 658 stands out. Leveraging High-Res digital recording and streaming, along with MQA decoding through BluOS, it ensures studio master quality. The ESS Sabre 32bit DAC guarantees a pure High-Res experience with a 118dB Dynamic Range and minimal jitter. Digital volume control maintains consistency across all settings.
Dirac Live Room Correction
A pioneer in NAD stereo components, the C 658 introduces Dirac Live room correction. Correcting both speaker impulse and room frequency response, this feature offers a transparent window into musical performances. Taming room resonances and perfecting transient response, Dirac Live transforms your listening experience, rendering speakers virtually invisible and producing exceptional sound quality.
*Note: The C 658 includes a license for Dirac Live with the option for advanced users to upgrade to a Dirac Live Full Frequency version.
BluOS™ Integration
The NAD C 658 seamlessly incorporates BluOS, the pinnacle of High-Res streaming. This sophisticated system supports over 15 music services and indexes 250,000 tracks locally. The C 658 serves as a BluOS node, facilitating high-res network streaming across 64 zones with iOS, Android, Windows, and Mac OS compatibility.
NAD Classic Series Excellence
Part of the esteemed Classic Series, the C 658 upholds NAD’s legacy of delivering outstanding performance and value. Eschewing lavish aesthetics, it prioritizes state-of-the-art features. Crafted for music lovers seeking top-tier performance without unnecessary frills, this component provides unparalleled value in a robust, no-nonsense package.
High-Resolution Audio Prowess
With a 45-year history of High-Res components, the C 658 stands out. Leveraging High-Res digital recording and streaming, along with MQA decoding through BluOS, it ensures studio master quality. The ESS Sabre 32bit DAC guarantees a pure High-Res experience with a 118dB Dynamic Range and minimal jitter. Digital volume control maintains consistency across all settings.
Dirac Live Room Correction
A pioneer in NAD stereo components, the C 658 introduces Dirac Live room correction. Correcting both speaker impulse and room frequency response, this feature offers a transparent window into musical performances. Taming room resonances and perfecting transient response, Dirac Live transforms your listening experience, rendering speakers virtually invisible and producing exceptional sound quality.
*Note: The C 658 includes a license for Dirac Live with the option for advanced users to upgrade to a Dirac Live Full Frequency version.
Downloads
MANUAL
DATA SHEET
WHITE PAPER
To download a copy of the firmware for your NAD unit please contact support
SOFTWARE
Control Integration
CONTROL 4
CRESTRON
URC
RTI
LUTRON
NICE/ELAN
OTHER
Downloads
MANUAL
DATA SHEET
WHITE PAPER
To download a copy of the firmware for your NAD unit please contact support
SOFTWARE
Control Integration
CONTROL 4
CRESTRON
URC
RTI
LUTRON
NICE/ELAN
OTHER
The NAD C 658 stands as a groundbreaking stereo component, transcending preconceptions and ushering in new possibilities for home audio. It embraces the evolving landscape of music distribution, seamlessly blending streaming with cutting-edge digital technology. This all-in-one unit integrates a Network Streamer, advanced DAC, and key elements of a traditional Preamplifier, delivering exceptional value. NAD’s Modular Design Construction ensures future-proof adaptability. Notably, an optional HDMI 4k switcher module enhances compatibility with various HDMI sources. Beyond replacing or supplementing your Streamer, DAC, and Preamp, the C 658 introduces features like a Bluetooth aptX HD transmitter for wireless headphones. Its versatile outputs support balanced connections, while a sophisticated MM Phono input and digital subwoofer crossover further enhance its capabilities, making it the ideal choice for the best stereo system at home.
The NAD C 658 stands as a groundbreaking stereo component, transcending preconceptions and ushering in new possibilities for home audio. It embraces the evolving landscape of music distribution, seamlessly blending streaming with cutting-edge digital technology. This all-in-one unit integrates a Network Streamer, advanced DAC, and key elements of a traditional Preamplifier, delivering exceptional value. NAD’s Modular Design Construction ensures future-proof adaptability. Notably, an optional HDMI 4k switcher module enhances compatibility with various HDMI sources. Beyond replacing or supplementing your Streamer, DAC, and Preamp, the C 658 introduces features like a Bluetooth aptX HD transmitter for wireless headphones. Its versatile outputs support balanced connections, while a sophisticated MM Phono input and digital subwoofer crossover further enhance its capabilities, making it the ideal choice for the best stereo system at home.
| 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 |
| Frequency response | >±0.3dB (20Hz – 20kHz) |
| 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) |
BluOS™ Integration
The NAD C 658 seamlessly incorporates BluOS, the pinnacle of High-Res streaming. This sophisticated system supports over 15 music services and indexes 250,000 tracks locally. The C 658 serves as a BluOS node, facilitating high-res network streaming across 64 zones with iOS, Android, Windows, and Mac OS compatibility.
NAD Classic Series Excellence
Part of the esteemed Classic Series, the C 658 upholds NAD’s legacy of delivering outstanding performance and value. Eschewing lavish aesthetics, it prioritizes state-of-the-art features. Crafted for music lovers seeking top-tier performance without unnecessary frills, this component provides unparalleled value in a robust, no-nonsense package.
High-Resolution Audio Prowess
With a 45-year history of High-Res components, the C 658 stands out. Leveraging High-Res digital recording and streaming, along with MQA decoding through BluOS, it ensures studio master quality. The ESS Sabre 32bit DAC guarantees a pure High-Res experience with a 118dB Dynamic Range and minimal jitter. Digital volume control maintains consistency across all settings.
Dirac Live Room Correction
A pioneer in NAD stereo components, the C 658 introduces Dirac Live room correction. Correcting both speaker impulse and room frequency response, this feature offers a transparent window into musical performances. Taming room resonances and perfecting transient response, Dirac Live transforms your listening experience, rendering speakers virtually invisible and producing exceptional sound quality.
*Note: The C 658 includes a license for Dirac Live with the option for advanced users to upgrade to a Dirac Live Full Frequency version.
BluOS™ Integration
The NAD C 658 seamlessly incorporates BluOS, the pinnacle of High-Res streaming. This sophisticated system supports over 15 music services and indexes 250,000 tracks locally. The C 658 serves as a BluOS node, facilitating high-res network streaming across 64 zones with iOS, Android, Windows, and Mac OS compatibility.
NAD Classic Series Excellence
Part of the esteemed Classic Series, the C 658 upholds NAD’s legacy of delivering outstanding performance and value. Eschewing lavish aesthetics, it prioritizes state-of-the-art features. Crafted for music lovers seeking top-tier performance without unnecessary frills, this component provides unparalleled value in a robust, no-nonsense package.
High-Resolution Audio Prowess
With a 45-year history of High-Res components, the C 658 stands out. Leveraging High-Res digital recording and streaming, along with MQA decoding through BluOS, it ensures studio master quality. The ESS Sabre 32bit DAC guarantees a pure High-Res experience with a 118dB Dynamic Range and minimal jitter. Digital volume control maintains consistency across all settings.
Dirac Live Room Correction
A pioneer in NAD stereo components, the C 658 introduces Dirac Live room correction. Correcting both speaker impulse and room frequency response, this feature offers a transparent window into musical performances. Taming room resonances and perfecting transient response, Dirac Live transforms your listening experience, rendering speakers virtually invisible and producing exceptional sound quality.
*Note: The C 658 includes a license for Dirac Live with the option for advanced users to upgrade to a Dirac Live Full Frequency version.
Downloads
MANUAL
DATA SHEET
WHITE PAPER
To download a copy of the firmware for your NAD unit please contact support
SOFTWARE
Control Integration
CONTROL 4
CRESTRON
URC
RTI
LUTRON
NICE/ELAN
OTHER
Downloads
MANUAL
DATA SHEET
WHITE PAPER
To download a copy of the firmware for your NAD unit please contact support
SOFTWARE
Control Integration
CONTROL 4
CRESTRON
URC
RTI
LUTRON
NICE/ELAN
