Variety of Sources
Wireless Multiroom Audio
Hybrid Digital Amplification: NAD has moved
away from the old-fashioned power-hungry linear power supplies and Class AB
output stages that waste nearly half of the energy consumed and produce heat
rather than sound. Instead, NAD has developed even better performing circuits
based on switch mode power supplies and Class D output stages. Once thought to
be inferior to traditional topologies, this new Hybrid Digital Amplifier design
is very linear over a wide bandwidth and provides consistent performance into
all speaker loads, providing a dramatic advancement over previous Class AB and
Class D amplifier designs.
- Customized Hypex UcD Output Stage: The C 388 BluOS uses a
customized version of the proven Hypex UcD output stage operating in a fully
balanced bridge configuration. This allows for massive power with nearly
un-measurable distortion and noise in the audible range. Every detail of
this design has been carefully planned and perfectly executed to deliver
every last drop of performance.
- Sophisticated Power Supply: The C 388 BluOS's power supply
is capable of 200 watts continuously and over 600 watts instantaneously to
allow for short-term musical transients. It can operate with any AC mains
voltage from 100 to 240 volts and provides pure DC power to all the various
stages of the C 388 BluOS. This highly efficient supply also provides near perfect
regulation of voltage across a wide range of conditions and provides a solid
noise-free foundation for the amplifying stages.
Full Disclosure Power (FDP): NAD uses Full Disclosure Power
(FDP), the most demanding criterion for performance measurement. FDP specifies
distortion under the mosat extreme conditions of low impedance loads and
frequency extremes, rather than the simple and easy 1kHz @ 8 ohms test quoted by
many of other manufactures. NAD uses this stricter performance criterion because
it more closely matches the demands of real music and real loudspeakers.
Maintaining specified distortion at 4/8Ω and at 20-20kHz is a much more
difficult achievement. The benefit of NAD's Full Disclosure Power is the total
elimination of audible distortion at any listening level. This provides pinpoint
imaging and realism with music and movies alike.
- Continuous Power: 150 watts x 2-channel (@ 20-20kHz,
into 4Ω or 8Ω, at 0.009% THD, with both channels driven)
- IHF Dynamic Power: 400W into 2Ω / 350W into 4Ω / 250W
Binding Post Speaker Outputs: The amplifier features A & B
speaker terminals to power two pair of loudspeakers. The speaker terminals
consist of eight binding posts that will accept single banana plugs (single
only), pin connectors, spade lugs, and bare wire (up to 10AWG). The amplifier
supports 4Ω speakers when only one pair is connected, however, when two pair of
speakers are connected a minimum impedance of 8Ω is recommended.
Discrete Headphone Amplifier: The NAD C 388 BluOS incorporates a discrete
headphone amplifier with low output impedance and very high output voltage
capability, enough to drive even high impedance studio monitor headphones.
Connecting a set of headphone to unit's front-panel 1/4" jack will mute the
speaker outputs. Volume, tone, and balance controls are all operable during
Line Outputs: The C 388 BluOS features a low impedance line-level
stereo output that
can connect to another other amplifier or powered subwoofer to extend the hybrid
digital DAC amplifier's versatility.
Tone Control: The NAD C 388 BluOS hybrid digital DAC amplifier
lets you adjust Bass (60Hz) & Treble (20kHz) from -7 to +7dB, as well as Balance
between the left & right speakers (L10 to R10).
Filters: Filters provide easy bi-amplification or subwoofer
integration by adding the required filters to redirect bass frequencies to the
subwoofer. Select High Pass or Full Range. When High Pass is selected, low pass
audio signals within the 40Hz to 200Hz are sent to the C 388 BluOS's subwoofer preout
and high pass audio signals are sent to the C 388 BluOS's amplifier section and
speaker outputs. Select Full-Range to deliver audio signals with the whole
frequency spectrum to the C 388 BluOS's amplifier section and speaker outputs.
Variety of Sources
Bluetooth Music Streaming: You can wirelessly pair and
connect instantly to the C 388 BluOS with Bluetooth (4.0), allowing you to stream stored
music and music apps wirelessly from your Bluetooth-enabled source device; like
your smartphone, tablet, laptop or desktop computer. The high performance
Bluetooth aptX codec is fully supported for true CD-quality sound from aptX-compatible
Bluetooth devices (like Android OS 4.0+ smartphones & tablets). There is no
control or song/artist info display from the C 388 BluOS.
Note: Make sure to plug in both antennas to the "BT Antenna" ports on the
Dual USBA Ports: The MDC DD BluOS module features two USB
(type-A) ports to directly connect your USB mass storage class (MSC) device;
such as a thumbdrive or external hard-drive. The unit's USB ports support music
playback from these compatible USB devices formatted in FAT 32. Not only can USB
audio be played back on your compatible NAD digital integrated amplifier or
digital pramplifier, but can also be wirelessly distributed to the rest of your
Bluesound components throughout your home for multiroom playback. The USB port
is not compatible with the direct connection of an Apple iPod/iPhone/iPad or
Note: There is also a mini-USB (type-B) port and a third
USB (type-A) port that are used for service purposes only (not for consumer
use). Only authorized service personnel can access this USB port.
Digital Inputs: The NAD C 388 BluOS is equipped with two optical (toslink)
digital inputs and two coaxial (RCA) digital inputs. These digital inputs will
support 2ch PCM audio up to 24-bit/192kHz (not compatible with Dolby
Analog Inputs: The NAD C 388 BluOS's stereo RCA inputs (2 Line/1
Phono) can accommodate all
kinds of analog source components by offering ideal input impedance
characteristics with linear ultra-low-noise buffer amplifiers to prevent any
sonic degradation caused by inappropriate loading of the source device.
MM Phono Stage w/ RIAA Equalization: The NAD C 388 BluOS hybrid digital DAC
amplifier includes an MM Phono stage with precisely accurate RIAA equalization,
high overload margins, extremely low noise, and an innovative circuit to
suppress infrasonic noise that is present on all LPs - all without affecting
Modular Design Construction (MDC):
Modular Design Construction (MDC), an exclusive feature of NAD, allows you to
customize the NAD integrated amplifier with additional capabilities and
features, now or in the future. One available MDC slots can accommodate a
variety of upgrade modules (all sold separately) including 4K video capable HDMI
switching and additional Digital Inputs
- Balanced/Unbalanced & Phono MM/MC Module: The DD AP-1
sold separately) adds a balanced and unbalanced analog line-level input,
plus a MM/MC compatible phono input.
- 4K HDMI Module The MDC HDM-2 (745HDM2,
sold separately) adds HDMI capability with three HDMI inputs and one HDMI
output for video plass-through. Based on the latest 6GHz HDMI chip, the MDC
HDM-2 includes full support for UHD (4K) video pass through to a video
monitor, plus support for 24-bit/192kHz 2Ch PCM (not compatible with Dolby
- 1080p HDMI Module: The DD HDMI-1 module (745DDHDM1,
sold separately) adds three HDMI inputs and one HDMI output for video pass
through. Full 3D Video support with video resolution up to 1080p/60.
Supports 2 channel PCM audio with 24-bit/192kHz resolution (not compatible
with Dolby Digital/DTS).
Note: These MDC modules are all sold
separately (not included with the C 388 BluOS). You can add only one MDC module.
Wireless Multiroom Audio
Pre-Installed BluOS Module: The NAD C388 BluOS hybrid
digital amplifier is equipped with a pre-installed NAD MDC DD BluOS module.
BluOS is a digital music management software system developed by NAD's sister
brand, Bluesound, that offers wireless multiroom audio streaming. Thanks to BluOS, you can now stream network audio from your
computer or mobile devices, as well as stream music from internet radio and
select online music services directly to the NAD C388 BluOS amplifier, plus
other Bluesound components throughout your home.
Note: Up to 16 Bluesound devices can be connected in a
strictly wireless environment. If you want to connect more than 16 Bluesound
devices, you will need to connect the Bluesound devices to your network
using a wired connection. Bluesound can then control up to 64 devices in a
strictly wired environment.
Wired or Wireless Network Connection: The pre-installed MDC DD BluOS
module allows this NAD hybrid digital amplifier
to connect to your home network and Internet provider via a hardwired Gigabit
Ethernet (RJ-45) jack connector or wireless Wi-Fi (802.11 b/g/n) connection.
Either network/internet connection allows you to stream music from your Windows
or Mac computer and NAS drive (such as the Bluesound Vault, sold separately); as
well as stream select online music services.
Note: Included with the MDC DD BluOS module is a Wi-Fi
dongle and a 41" USB extension cable that must be plugged into one of the
module's USB (type-A) ports for wireless connection to your network.
Bluesound Controller App: The
Bluesound Controller App turns your Apple iOS (7.0+) iPod/iPhone/iPad,
Android (OS 4.0+) smartphone/tablet, Windows (Vista higher) PC or Mac (OS X
10.7+) computer into a full-featured remote control for the Bluesound wireless
music system. The Bluesound Controller App on your compatible device uses your
home's Wi-Fi network to connect with Bluesound devices, so you can play all the
music you love anywhere in your home for a wireless multiroom music experience.
Get on-demand access to your music libraries on your home network, stream live
Internet radio from almost any place in the world, or listen to one of the many
music services available on Bluesound, all from the palm of your hand with the
easy-to-use Bluesound Controller App.
Supported Music Formats: The NAD C 388 BluOS with the
pre-installed MDC DD BluOS module supports both low-res and high-res audio files; including
MP3, AAC, WMA, OGG, FLAC, ALAC, WMA Lossless, MQA, WAV, and AIFF. Bluesound has
been designed to work with today's larger music collections, and has
indexed libraries up to 100,000 songs in demonstrated practice (this will depend
on the music's metadata & artwork). Bluesound also offers gapless playback by
default for all supported file music types.
| Compression || File Type || Sampling Frequency || Bit Rate or Bit Depth |
| Compressed || Lossy ||MP3 ||16-48kHz ||192-320
| Lossless ||WMA-Lossless ||up to 96 kHz ||up to 24-bit |
|FLAC ||192 kHz ||up to
| Uncompressed ||AIFF ||up 192 kHz ||up to
Note: Bluesound cannot index or play AAC files with the
extension ".m4p". These files were purchased in iTunes prior to 2009 and are
subject to copy protection. Apple Consumers with an iTunes Match
subscription can delete and re-download these files free of charge from
their iTunes Cloud
MQA (Master Quality Authenticated): Bluesound is the first
wireless multiroom audio system to support MQA (Master Quality Authenticated).
MQA is a revolutionary end-to-end technology that captures and delivers master
quality audio in a file that's small enough to stream or download. Bluesound
worked closely with MQA to implement technology inside each Bluesound component
to ensure the listener will hear MQA encoded music and streams exactly like the
source and the way the artist intended you to hear it when it was approved in
Note: MQA (Master Quality Authenticated) support will
require a firmware update.
Online Music Services: With a network and internet
connection, the NAD C 388 BluOS lets you access select online music services
& internet radio. The Bluesound Controller app on your Apple iOS or Android
device will serve as the controller for these apps and provide song/artist
information with Album Art.
Spotify Connect: If you subscribe to
Spotify Premium and have the Spotify App on your
Apple iOS or
Android smartphone, you can stream Spotify to the Bluesound system.
Spotify is a digital music service that gives you on-demand access to one of
the largest music libraries in the world (over 15 million tracks and
counting). Spotify makes it easier than ever to discover, manage, and share
music with your friends. You can browse music by artist, album, track, or
most popular; and create your own music library with customized playlists.
TIDAL is a global streaming service that offers over 30 million songs in
high-fidelity CD sound quality. TIDAL has two pricing tiers; either $9.99 or
$19.99 a month. Both pricing levels allow you to access TIDAL's entire music
library. The $19.99 tier has the added benefit of high-fidelity sound at
The Bluesound eco-system includes access to more than 70,000 free internet
radio streams from all corners of the globe via the TuneIn radio service.
Just select the TuneIn logo from the main Music menu and browse among the
70,000 stations neatly organized into popular categories and select a
station that appeals to your mood.
- iHeart Radio:
iHeartRadio is a free, all-in-one digital radio and music streaming
service that lets you listen to thousands of live stations from across the
country and allows you to create personalized custom stations featuring
songs from the artist you select and similar music.
Napster is a streaming music subscription service (starting a $10
per month) that allows you to play the full-length songs you choose on
demand from a collection of over 10 million songs, without ads and without
having to purchase or download the music.
Get the sound quality that you deserve with the new Slacker Radio® music
library available in high-quality AAC audio on Bluesound. Listen to music
streams at a bitrate of 320kbps and enjoy all your favorite Slacker stations
in pristine MP3-quality.
Note: Availability of online music services may vary by
region. Not all services may be available at time of purchase. Some services
may be added or discontinued from time to time based on decisions of the
music service providers or others.
Music Library From Your Mobile Device: From the Bluesound
Controller App, you can stream music directly over Wi-Fi from your Apple iOS or
Android device to the NAD hybrid digital amplifier and the rest of your Bluesound components around your home. The app
gives you complete control of your compatible mobile device's music library with
song/artist information and album art.
Computer Audio: The pre-installed MDC DD BluOS module will pull music from
an existing digital music library across the network on your Windows PC or Mac
computer using Windows or SMB File Sharing (SAMBA) and the Bluesound Controller
App for Windows & Mac.
- Windows: Music files stored on a Windows desktop or
laptop can be accessed by Bluesound using Windows File Sharing. You will
need to download the Bluesound Share Utility for Windows -
Bluesound Share Utility Windows v1.6.zip. This utility will work on
Windows Vista, 7, 8 and 10.
- Mac: Music files stored on an Apple iMac or MacBook can
be accessed by Bluesound using SMB File Sharing. You will need to download
the Bluesound Share Utility for OS X -
Bluesound Share Utility OSX v1.2.zip.This utility will work on any
version of Apple OS X 10.8.x and higher.
NAD Remote App: Power, volume, source selection, and device
settings are all controlled using the intuitive interface of the NAD Remote App
Apple iOS 9.0+ and
Android OS 5.0+) from your compatible Apple iOS or Android OS device.
IR Remote: The included IR remote control handles the key functions of
the C 388 BluOS. The IR remote can also be used to directly command other NAD
products that respond to applicable common remote control codes. This includes
other NAD Stereo Receiver, Integrated Amplifier, and Preamplifier models. It has
additional controls to remotely operate NAD CD Players, AM/FM Tuners, and
dedicated AM/FM/DB Tuners. It will operate up to a distance of 23'. The remote
requires two "AA" alkaline batteries (included).
Remote Connections: The NAD C 388 BluOS is fitted with a 12V trigger
input/output, an IR input/output, and a RS-232 port for custom integration and
advanced remote connectivity
- 12V Trigger In/Out: The +12V trigger output (3.5mm) lets you turn
on/off another device along with the C 388 BluOS. The integrated amp can also be
turned on/off by another device using the +12V trigger input (3.5mm).
- IR In/Out: The IR input (3.5mm)is used to control this unit
using an optional infrared repeater or the IR output of another component.
The IR output (3.5mm) can be used for control of another NAD component.
- RS-232 Port: The RS-232 port allows connection to a compatible PC
or external whole-house control system. NAD is a certified partner of
Control4, Crestron, RTI, URC, AMX, Savant, & Elan.
Auto Standby: The C 388 BluOS can be setup to automatically go into standby
mode if there is no user interface interaction and no active source input for 30
Auto Sense: The Auto Sense feature enables the C 388 BluOS to wake up from standby mode when
triggered by an active source input with an audio signal.