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NAD C 268

Stereo power amplifier, 80 watts x 2

Item #: 745C268

Accurate channel balance, proper impedance, and low-noise circuits combine for a top-notch listening experience.

Accurate channel balance, proper impedance, and low-noise circuits combine for a top-notch listening experience.

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Item # 745C268

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$799.99
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About the NAD C 268

A flexible amplifier that puts music first

The C 268 is packed with what NAD calls "music-first" features: accurate channel balance, proper input and output impedance characteristics, and low-noise circuits all combine to give you a top-notch listening experience.

A flexible amplifier that puts music first

The C 268 is packed with what NAD calls "music-first" features: accurate channel balance, proper input and output impedance characteristics, and low-noise circuits all combine to give you a top-notch listening experience.

In designing the C 268 stereo amplifier, the engineers at NAD chose the most essential features based on their knowledge of how amplifiers are commonly used. Its line inputs, both balanced XLR and single-ended RCA, can accommodate all kinds of analog source components. This amp also includes a trim control, which is useful for matching with other components, or bi-amping speakers. A stereo preamp output lets you connect a separate amplifier or powered subwoofer, and a bridge switch turns the C 268 into a powerful monoblock amp. An auto-sense feature with selectable threshold is perfect for automating complex systems, or for hiding the C 268 in a cabinet.

Clean amplification

The C 268 uses an advanced Class D amplifier design for consistent performance. Its highly efficient power supply provides a noise-free foundation, generating clean power with negligible distortion, to faithfully reproduce the energy and excitement of all your favorite music.

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Product highlights:

  • 80 watts x 2 channels into 8 or 4 ohms (20-20,000 Hz) at 0.003% THD
  • 300 watts x 1 channel into 8 or 4 ohms in bridge mode
  • 4-ohm stable for use with a wide range of speakers
  • Class D Asymmetrical PowerDrive amplifier design
  • stereo balanced XLR and unbalanced RCA inputs
  • stereo RCA preamp output for connecting a separate amplifier or powered subwoofer
  • binding post speaker connectors
  • input select switch
  • 12-volt in/out triggers
  • detachable power cord
  • signal-to-noise ratio: 110 dB
  • 17-3/16"W x 3-15/16"H x 15-3/8"D
  • weight: 16.1 lbs.
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # C268
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What's in the box:

  • Stereo power amplifier
  • 6' AC power cord
  • Quick Setup Guide
  • Warranty Card

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More details on the NAD C 268

Stacey B.

Product Research

Features

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 268 stereo power amplifier 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.
  • PowerDrive Technology: The power supply of the C 268 is capable of nearly 200 watts continuously and over 500 watts instantaneously, allowing for short term musical transients. NAD's innovative asymmetrical PowerDrive fully utilizes every last watt available with its vast reserves of dynamic power available to accurately reproduce the most demanding music without distortion or compression. It can also operate with any AC mains voltage from 100V to 240V, and provides pure DC power to all the various stages of the C 268. 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 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 4/8Ω 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:
    • Stereo: 80 watts x 2-channel (@ 20-20kHz, into 4Ω or 8Ω, with 0.03% THD, both channels driven)
    • Bridged: 300 watts x 1-channel (@ 20-20kHz, into 4Ω or 8Ω, with 0.03% THD, one channel driven)
  • IHF Dynamic Power:
    • Stereo: 120W into 8Ω / 200W into 4Ω / 250W into 2Ω (@ 1kHz with 1% THD)
    • Bridged: 500W into 8Ω / 560W into 4Ω (@ 1kHz with 1% THD).

Stereo or Bridged Mode: The NAD C 268 can be used as a two channel amplifier in Stereo mode or a mono channel amplifier in Bridged mode. Low impedance speakers (under 8 ohms) are not recommended when using Bridge Mode as these may cause the amplifier's thermal cut-out to operate if played at high levels.

Balanced & Unbalanced Inputs: The NAD C 268 stereo power amplifier is equipped with balanced XLR and unbalanced RCA inputs. It can accommodate all kinds of analog source components by offering ideal input impedance traits with linear ultra-low-noise buffer amplifiers to prevent any sonic degradation that may be caused by the source device's output impedance. The balanced XLR connectors use this configuration - Pin 1: Ground, Pin 2: Positive (signal live), and Pin 3: Negative (signal return).

Binding Post Speaker Outputs: The speaker output terminals consist of four binding posts to connect a single pair of loudspeakers in Stereo mode or only one speaker in Bridged mode. The amplifier supports 4Ω to 8Ω speakers in Stereo mode and only 8Ω speakers in Bridged mode. These binding post terminals will accept bare wire (up to 10AWG), pin-connectors, spade-lugs, and banana plugs (single only). You'll need to remove the plastic inserts within the binding-post terminals to connect banana plugs.

Stereo RCA Line Output: The stereo RCA line output allows "daisy-chaining", so more than one amplifier can be used to add speakers to the same channel.

Controls: The NAD C 268 stereo power amplifier features Input Select switch, Input Level knob, and Auto Sense Level switch on the rear-panel.

  • Input Select: Use the Input Select switch to change the C 268 to a "Fixed" or "Variable" output. With a "Fixed" output, the C 268's audio output level is control by an external preamplifier. With a "Variable" output, the C 268's audio output level can be adjusted using the Input Level control knob on back of the power amp.
  • Input Level: With the Input Select switch set to "Variable", the Input Level control knob can be used to adjust the audio output level of the C 268.
  • Auto Sense Level: The Auto Sense feature instantaneously turn the C 268 to "Operating" mode from "Standby" mode if it senses a specific input signal level applied to either the balanced XLR or unbalanced RCA inputs. There are three Auto Sense levels - Low (0.85mV), Mid (1.7mV), and High (3.7mV).

12V Trigger In/Out: The NAD C 268 is outfitted with a 12V Trigger Input and Output, each consisting of a female 3.5mm jack. The 12V Trigger Input allows the C 268 to be switched On remotely from Standby mode by a preamplifier with a 12V Trigger Output. The 12V Trigger Output switches on a connected external device that features a 12V Trigger input when the C 268 is powered on.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
technical specification of the amplifier and to increase power delivery as compared to current system [ ken  Dec 02, 2018 ]
A
Specs met my criteria. Good price point for rated performance. [ Thomas  Sep 19, 2018 ]

2 questions already asked

Q
Would this NAD C268 be better than the NAD D3045 for KEF LS50 speakers?
[ Ethan  Apr 12, 2019 ]
1 answer
A
Ethan - This will depend on whether you need the DAC, Bluetooth and various inputs on the NAD 3045 such as the phono preamp. I suspect the NAD C268 is a better amplifier, being dedicated to that function at a good price. But it is only an amplifier, with an array of line inputs and a line level pass-thru for a powered sub or second amp. If you only need to drive your KEFs, the C268 is excellent. I used it to upgrade an NAD C720BEE receiver, a great unit with a deficient power amp. I have been very pleased with the sound of my Focal Chorus VI speakers since I installed it. Much better imaging, smoother frequency response and no sense of compressed dynamics; very open sound. Form factor may be an issue for you as well - the C268 is sized to stack with traditional components. I am a big NAD fan and have a number of their products in use including a 30 year old Model 1600 tuner/preamp and C272BEE in my recording studio. HTH.
[ Paul  Apr 12, 2019 ]
Q
can this amp be used with the Niles SSVC-6 to power 5 pair of speakers? Or what would you recommend? Thanks
[ Jorge  Dec 10, 2018 ]
2 answers
A
I have my Series 38 Cerwin Vega speakers hooked up and it never goes above "2" lest my windows start rattling and the neighbors complain. If you daisy-chained them, I'm certain it would handle the load.
[ Dan  Dec 23, 2018 ]
A
The Niles SSVC-6 is rated to handle up to 100 watts per channel from the connected amplifier so, yes; it will be compatible. For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx
[ Ryan  Dec 22, 2018 ]  Staff

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