C 658
Network streamer, DAC and digital preamplifier with BluOS built in, from NAD's Classic Series. It suits two-channel systems that need streaming, an MM phono input, Dirac Live room correction and balanced outputs to a power amplifier.
- BluOS streaming with multi-room support
- Dirac Live Limited Bandwidth licence and mic included (to 500Hz)
- Dirac licence upgradeable to Full Frequency
- Balanced and single-ended outputs
- MM phono input
- Two MDC slots for optional HDMI and USB-DSD
Grianghraif
7Fógraí
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Díol ceann mar seoCur síos
The C 658 combines a network music streamer, a DAC and an all-digital preamplifier in one component. BluOS gives it access to streaming services and local music libraries, controlled from the BluOS Controller app in one room or across a multi-room setup. Playback is supported up to 32-bit/192kHz.
It includes a Dirac Live Limited Bandwidth licence and a calibration microphone for room correction up to 500Hz. The licence can be upgraded to Full Frequency, and Dirac Live Bass Control is available as an optional licence. An adjustable digital subwoofer crossover provides bass management.
For connections it has balanced and single-ended outputs, an MM phono input, and line-level and digital inputs. Two MDC slots allow optional expansion, including HDMI and USB-DSD playback. Network and wireless options are Gigabit Ethernet, dual-band Wi-Fi and two-way aptX HD Bluetooth, and a headphone output is provided.
Físeán
Sonraíochtaí
- Branda
- NAD
- Samhail
- C 658
- Catagóir
- Hi-Fi agus fuaim an tí › Seinnteoirí
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
- 22 kohms + 100pF
- Maximum input signal
- >4.5Vrms (ref. 0.1% THD)
- Output impedance
- Source Z + 240 Ohm
- Frequency response
- ±0.3dB (20Hz - 20kHz)
Phono input
- 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)
- Maximum input signal at 1kHz
- >80mVrms (ref. 0.1% THD)
Headphone output
- THD (20Hz – 20kHz)
- <0.005% at 1V out
- Signal-to-noise ratio
- >110dB (32 Ohms loads; A-WTD, ref. 2V out, unity gain)
- Output impedance
- 6 Ohms
Audio
- Native sampling rates
- up to 32bit/192kHz
- Bit depths
- 16 – 24
- High resolution formats
- MQA, FLAC, WAV, AIFF; converted DSD playback via the BluOS desktop app (only)
- Supported file formats
- MP3, AAC, WMA, OGG, WMA-L, ALAC, OPUS
Connectivity
- Bluetooth
- aptX HD, two-way (transmit and receive)
- Network
- Gigabit Ethernet RJ45; WiFi 5 (802.11 ac/n)
- Expansion
- Dual MDC slots
Software
- Mobile app
- BluOS Controller for Android and iOS
- Room correction
- Dirac Live Limited Bandwidth, upgradeable to Full Frequency
Physical
- 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)
In the box
- Room correction
- Dirac Live Limited Bandwidth licence and calibration microphone