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NAD C 375DAC

Stereo integrated amp with add-on DAC module

11 Reviews | 1 question - 5 answers

Item # 745C375DAC

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Overview

Our take on the NAD C 375DAC

Experience room-filling sound with impressive musical detail and transparency. The NAD C 375DAC features a sophisticated design and beefy construction to bring out the best in all your music — from the lowest, wall-shaking pedal notes of a pipe organ to the delicate reverberation of a solo acoustic guitar. This integrated amp delivers 150 full-bandwidth-rated watts to each of your stereo speakers for powerful, undistorted sound, even during your music's most demanding passages.

Experience room-filling sound with impressive musical detail and transparency. The NAD C 375DAC features a sophisticated design and beefy construction to bring out the best in all your music — from the lowest, wall-shaking pedal notes of a pipe organ to the delicate reverberation of a solo acoustic guitar. This integrated amp delivers 150 full-bandwidth-rated watts to each of your stereo speakers for powerful, undistorted sound, even during your music's most demanding passages.

Digital sources welcome

And the best part is, the NAD C 375DAC can do this with your entire music library, thanks to its built-in DAC module. Adding a DAC to an acclaimed integrated amp is like taking a slice of warm pie and adding a scoop of vanilla. They've taken one of their popular mainstays, the C 375BEE integrated amp, and added a world-class DAC so that you can treat all your digital sources to the power and control that has made NAD legendary among audio enthusiasts.

The MDC (Modular Design Construction) DAC module

The MDC (Modular Design Construction) DAC module, which comes installed

This amp features NAD's innovative modular design construction, which allows you to customize your input configuration by adding or swapping modules on the back of the unit. The 375DAC's included DAC module features an asynchronous USB connection that controls the data flow of your computer audio files, reclocking the data stream to minimize jitter. Your music will come to life in three dimensions as the soundstage expands and reveals detail. This module also features an optical input for use with your CD, DVD, or Blu-ray player, and it supports high-resolution music.

Advanced technology for stunning sound

The C 375DAC employs many of the same high-end features found on NAD's top-of-the-line Masters Series components, including NAD's exclusive PowerDrive™ technology. This unique circuit automatically senses your speaker's impedance, then optimizes the amp's power supply settings to deliver the most dynamic power possible. This allows it to easily drive low-impedance loads, including many of today's high-end speakers, which often run closer to four ohms than eight. Plus, a patented distortion canceling circuit in the amp's output stage ensures your music stays clean and pure.

A strong, vibration-resistant build

Along with all of its advanced technology, NAD gave the C 375DAC a big helping of good old-fashioned construction quality. This integrated amplifier boasts a heavy-gauge steel chassis for added durability and vibration resistance. Its power supply, the heart of any amplifier, utilizes an interference-canceling toroidal transformer and heavy copper buss bars to channel enormous amounts of current to the custom gold-plated speaker binding posts. Additional premium-quality internal components — such as four pairs of discrete high-wattage output transistors per channel — allow the C 375DAC to handle prolonged high-power operation effortlessly.

Connections and convenience

This integrated amp offers enough inputs to connect seven analog audio components. Its modular design even allows turntable owners to install an optional NAD phono module for listening to vinyl. (Or, connect NAD's outboard PP3 phono preamp.) Two sets of main speaker outputs provide hookups for an additional pair of speakers. Separate preamp input/line-level output jacks let you use the C 375DAC as an independent power amplifier or preamp for future system expansion, or to easily add a powered subwoofer. And the included remote gives you easy control of the amplifier and the other NAD audio components in your system.

I am so glad I got this before it was discontinued. This thing is a beast and the DAC is great as well. My old Bose 601's never sounded so good.

David F., Colorado

What's in the Box:

  • Integrated amplifier
  • 5.5' Power cord
  • Wireless remote control (SR 8)
  • 2 "AA" batteries
  • 2 Pre-out/Main-in jumpers (installed)
  • Owner's manual(En/Fr/Sp/Ita/Ge/Du/ Sw/Ru)
  • MDC DAC instruction sheet
  • Warranty information

Product Highlights:

  • 150 watts x 2 channels into 8 ohms (20-20,000 Hz) at 0.009% THD
  • 150 watts x 2 channels into 4 ohms (20-20,000 Hz) at 0.009% THD
  • 4-ohm capability allows use with a wide range of speakers
  • asynchronous DAC module features Burr-Brown TI PCM 1796 technology
  • sample rates: 32kHz-96kHz (USB), 32kHz-192kHz (optical)
  • signal-to-noise ratio: 102 dB
  • PowerDrive™ circuit with automatic speaker impedance sensing delivers maximum dynamic power output regardless of speaker load
  • switchable Soft Clipping™ circuit gently limits amplifier power output to reduce risk of speaker damage due to prolonged high volume operation
  • distortion-canceling circuit for high-accuracy sound
  • toroidal power transformer
  • all-discrete circuitry with four pairs of high-wattage output transistors per channel
  • rotary bass and treble controls with defeat switch for tone control bypass
  • 7 RCA audio inputs including 2 tape in/outs
  • optional NAD PP375 phono preamp module allows upgrading for turntable connection
  • front-panel minijack input for connecting a portable music player
  • main-amp input and 2 preamp outputs for connecting a powered subwoofer or separate amplifier for bi-amping
  • full-size headphone jack
  • front-panel switching for 2 pairs of speakers
  • two pairs of custom gold-plated speaker binding posts
  • bridged mode for mono operation (330 watts x 1)
  • RS-232 port for operation with third-party controllers
  • 12-volt trigger output
  • IR input/output
  • detachable AC power cord
  • <1W Standby Power Consumption
  • free of lead and other environmentally dangerous substances
  • remote control
  • weight: 33.7 lbs.
  • 17-1/8"W x 5-15/16"H x 15-5/8"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
Reviews

NAD C 375DAC Reviews

Average Customer Review(s):

(11 Reviews)
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Hands-on research

Features and Specs

Performance Specs
Watts RMS per Channel (8-ohms) 150
Watts RMS per Channel (6-ohms) Not given
Watts RMS per Channel (4-ohms) 150
Frequency Bandwidth 20-20k
THD 0.009%
Minimum Impedance 4 ohms
Signal to Noise Ratio 102
Digital Music Features
Built-in DAC (Digital to Analog Converter) No
High-resolution Audio Playback No
Bluetooth ---
Wi-Fi No
Connections
Total Analog Inputs 7
Phono Input No
Optical Digital Inputs 1
Coaxial Digital Inputs No
USB Input Type-B
Preamp Outputs 4
Headphone Output 1/4"
Dimensions and Warranty
Width (inches) 17-1/8
Height (inches) 5-15/16
Depth (inches) 17-1/2
Weight (pounds) 33.73
Parts Warranty 2 Years
Labor Warranty 2 Years

Product Research

Features
Controls
Connections
Specifications

Features

NAD PowerDrive Circuit: The C 375DAC uses NAD's proprietary PowerDrive amplifier technology that provides high dynamic power and low impedance drive capability. By adding a second high-voltage rail to the amp's well regulated high-current power supply, the amplifier can nearly double its continuous power on a short term dynamic power basis. This uniquely efficient power supply topology provides the real world benefits of high dynamic power that remains uncompromised by low impedance speakers.

FDP Specifications: NAD uses Full Disclosure Power (FDP), the most demanding criterion for performance measurement. FDP specifies distortion under the most 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 ohms and at 20Hz to 20kHz is a much more difficult achievement. The NAD C 375DAC is rated at 150 watts x 2 channel (@ 20-20kHz, in 4/8-ohm, with 0.007% THD).

Bridgeable: The C 375DAC can be bridged to a single channel, more than doubling the power output. When bridged, the minimum recommended speaker impedance is 8Ω. In Bridged mode, the C 375DAC will produce approximately 330 watts.

Soft Clipping: NAD's Soft Clipping circuit gently limits the output of the C 375DAC to minimize audible distortion when the amplifier is over-driven. While Soft Clipping can be left on at all times to reduce the likelihood of audible distortion from excessive volume settings, you can also turn the circuit off for critical listening if you prefer.

Digital-to-Analog Converter (DAC): The C 375DAC stereo integrated amplifier is fitted with NAD's MDC DAC USB Digital-to-Analog Converter which lets you listen to music stored on or streamed to your computer through your hifi-system without noise or distortion. The C 375DAC uses an 'asynchronous USB' technique and a high precision clock, so your 24-bit/96kHz quality computer music flows smoothly without 'jitter' or harsh distortion.

Modular Design Construction (MDC): Modular Design Construction (MDC) makes future upgrades possible with interchangeable, upgradeable modules.

Controls

Remote Control: The included IR remote control handles the key functions of the C 375DAC. 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).

Balance: The Balance control adjusts the relative levels of the left and right speakers. The Balance control does not affect recordings made using the Tape output terminals, but will affect the signal going to the Pre-amp output terminals (Pre Out 1 and Pre Out 2).

Tone Controls: The C 375DAC stereo integrated amplifier features independent Bass (100Hz) & Treble (10kHz) controls to adjust the tonal balanced of your system. The Tone control does not affect recordings made using the Tape output terminals, but will affect the signal going to the Pre-amp output terminals (Pre Out 1 and Pre Out 2).

Note: The Tone control circuits can be bypassed.

Connections

USB (Type-B) Port: The C 375DAC stereo integrated amplifier features a rear-panel USB (type-B) port to connect to your computer, so you can listen to music stored on or streamed to your computer (Windows or Mac). The USB input supports audio sampling rates of 32kHz to 96kHz.

Note: The rear-panel DAC Module switch must be set to USB.

Optical Digital Input: The stereo integrated amplifier also features a rear-panel optical (toslink) digital input for connecting of your CD, SACD, DVD, or Blu-ray player. The optical digital input supports audio sampling rates of 32kHz to 192kHz.

Note: The rear-panel DAC Module switch must be set to Optical.

Front-Panel Stereo Minijack: The NAD C 375DAC is equipped with a front-panel stereo minijack (3.5mm) to temporarily connect your portable digital audio player.

Analog Inputs: The NAD C 375DAC stereo integrated amplifier is fitted with 5 rear-panel analog stereo audio inputs (RCA). These inputs are labeled 'MP', 'CD', 'Tuner', 'Disc', and 'AUX'.

Tape Monitor Inputs/Outputs:  The NAD C 375DAC is equipped with two stereo Tape Monitor outputs (labeled 'Tape Monitor' and 'Tape 2') for recording purposes.

A-B Speaker Terminals: The NAD C 375DAC is fitted with A & B speaker outputs. You can choose to play back only the A speakers, only the B speakers, or both A-B speakers. You can also use both A-B speaker terminals to Bi-amp your speakers.  The speaker terminals are binding-posts and will accept single banana plugs, pin connectors, or bare wire (16-12 AWG).

Note: The stereo integrated amp will support one pair of 4 to 8-ohm speakers or two pair of 8-ohm speakers.

Preamp Outputs: The C 375DAC features dual stereo pre-amp outputs (labeled 'Pre Out1' and 'Pre-Out 2') to connect the unit to an external power amplifier or power subwoofer.

Main Input: This is a stereo RCA connection which allows the connection of an external preamplifier or processor.

Headphone Output: The C 375DAC is fitted with a front-panel 1/4" headphone jack for connecting a set of headphones (sold separately). The headphone jack will work in parallel with the selected speakers (A and/or B). To listen to only your headphones, de-select Speakers A-B. The volume, tone, and balance controls are operative for headphone listening.

IR Input/Output: There is an IR input (3.5mm), used to control this unit using an optional infrared repeater or the IR output of another component. There is also an IR output (3.5mm) used to control another compatible component.

+12V Trigger Output: The +12V trigger output (3.5mm) lets you turn on/off another device along with the C 375DAC.

RS-232 Port: The rear-panel RS-232 port allows connection to a compatible PC or external whole-house control system from companies such as AMX or Crestron. NAD is a certified partner of AMX and Crestron and fully supports these external devices.

Switched AC Outlet: This convenient outlet can supply switched AC power to another component or accessory. The total draw off all devices connected to this outlet must not exceed 120 watts.

AC Power Cord: The C 375DAC comes supplied with a detachable 68" AC power cord.

Specifications

Amplifier Section:

  • Continuous Power: 150 watts x 2 into an 8Ω or 4Ω load, 20 Hz - 20 kHz, no more than 0.009% THD, both channels driven simultaneously
  • Continuous Bridged Power: 330 Watts x 1 into an 8Ω load
  • Dynamic Power:
    • 8Ω: 250 watts x 2
    • 4Ω: 410 watts x 2
    • 2Ω: 600 watts x 2
    • 8Ω Bridged: 800 watts x 1
    • 4Ω Bridged: 1200 watts x 1
  • Rated THD (Total Harmonic Distortion): <0.009% (driving both channels 20 Hz - 20k Hz simultaneously at 8Ω)
  • Signal/Noise:
    • >102 dB (A-weighted, ref 1 watt)
    • >123 dB (A-weighted, ref 150 watt)
  • Damping factor: >200 (ref 8Ω, 50 Hz and 1 kHz)
  • Frequency response:
    • +/- 0.1 dB: 20 Hz-20 kHz
    • - 3 dB: 3 Hz-70 kHz
  • Input impedance: 10 kΩ + 200 pF
  • Input sensitivity: 1.2 volts (ref rated power)
  • Voltage gain: 29 dB
  • Headphone output impedance: 68 Ω
  • Channel separation:
    • 1 kHz: >85 dB
    • 10 kHz: >75 dB
  • Tone control:
    • Bass: +/-8dB @ 100Hz
    • Treble: +/-5dB @ 10kHz
  • Power Requirement: AC 120V 60Hz
  • Power Consumption:
    • At Rated Power: 290W
    • Standby: <1W
    • Idle: 120W
  • Weight: 33.7 lbs (15.3kg)

Our Product Research Team

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Q & A

Customer Q&A

1 question already asked

Very pleased with the quality, sound and the features to add additional components. Price was great would consider scratch and dent if available. [ HUGH  Aug 29, 2014 ]
I believe this integrated amp has the power to make a difference for almost any system in it's price range and that includes amps costing twice as much. When I purchased a pair of B&W 685 my Yamaha RS-500 sounded capable. But when replaced with this amp I heard strong, articulate music with soundstage and imaging that was incredible. Later I upgraded to B&W 803 Diamonds based on a review with this amp driving a pair of the 803s and the reviewers were absolutey impressed with this "wolf" in "sheeps" clothing. It's performance and controll of those speakers left the reviewers with eyes wide and jaws dropped. By the way the NAD has sophisticated bass and treble controls along with a balance control. I am a classical CD collector and given the wide ranging quality or recordings that control remains important. This amp can have a tendency to run hot depending on it's surroundings so I keep an almost no noise fan moving air across those areas in need of air flow. [ John  Aug 29, 2014 ]
Yes it's worth the price!...if u love high quality sound in ur music and movies as I do then it's a good investment. I'm running Bose 901 with this amp and it made a significant increase in strong bass and crisp highs with smooth midrange I am very satisfied with my NAD amp. [ JEREMY A  Aug 28, 2014 ]
It is worth the price, if you have a equally good speaker to match it with. ipod / iphone music sounds really good, I have a Def Tech BP8080ST and the clarity is mind blowing. [ PRADEEP  Aug 28, 2014 ]
I moved from an RV to a house and I was looking for a decent system, so I really have no comparison as I purchased an entire system. Of course I have heard other systems and I feel and think the next threshold for performance would exceed 12k for a complete system for marked increase in listening performance and pleasure. This unit delivers good power and the sound remains clear at high volume, I've never pushed it to the limit because it would hurt my hearing. The built in DAC vastly improves MP3/Ipod files. I also ran 2 powered subs and that really makes a difference for the whole sound spectrum. It is worth the price but audition is the best way to judge these components. [ WILLIAM T  Aug 28, 2014 ]
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