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All safety and operating instructions should be read and retained for future reference.
All warnings on the product and in the operating instructions should be adhered to and followed.
Unplug before cleaning; use a damp cloth; do not use liquid cleaners or aerosols.
Do not use unrecommended attachments or place product on unstable surfaces.
Do not use near water, ensure adequate ventilation, and avoid blocking openings.
Operate from indicated source; consult dealer for home supply type; polarized plug safety feature.
Route cords safely; ground outdoor antenna systems for surge protection.
Unplug during lightning storms; avoid placement near overhead power lines.
Do not overload outlets; never push objects or spill liquids into the unit.
Refer servicing to qualified personnel for damaged cords, spilled liquid, exposure to water, or abnormal operation.
Use manufacturer-specified parts; perform safety checks after service.
Mount only as recommended; do not expose to rain/moisture; be aware of dangerous voltage.
Ensure ventilation space; specific safety advice for UK users regarding plugs and fuses.
Overview of rear panel connections and controls with numbered labels.
Description and operation of the remote control handset.
Step-by-step guide for installing batteries in the remote control.
General guidance on placement, ventilation, and initial connections.
Basic steps to get the unit operational quickly.
Detailed explanation of all rear panel input/output connectors.
Explanation of the soft clipping feature for amplifier protection.
Description of the subwoofer output connection.
Connections for external pre-amplifiers/processors and power amplifiers.
Outputs for recording or secondary zone audio and tape input.
Inputs for auxiliary line-level audio sources and audio from video sources.
Inputs for CD players and other line-level sources like Mini Disc.
Connection for infrared repeaters and output for controlling external equipment.
Detailed description of front panel controls like Power, Display, Volume, Tone, etc.
Buttons to select the active input to the C720BEE for speakers, tape output, and PRE OUT.
1/4" stereo jack socket for headphone listening with volume, tone, balance controls.
Description of remote control functions including power, inputs, volume, and tuner controls.
Controls for operating NAD CD Players and Cassette Decks via remote.
Switches to control tape/tuner or CD operations and device selection.
Information on using the internal AM/FM tuner for radio broadcasts.
Guidance on connecting and positioning FM and AM antennas for optimal reception.
Instructions on how to select and store favorite radio stations.
How to use the FM Mute/Mode button to adjust stereo reception and noise.
Using the Blend feature to reduce noise and hiss while retaining stereo separation.
Explanation of Radio Data System features like station-name and radio-text.
How to display station-name (PS) and radio-text (RT) information.
How to assign an eight-character 'User Name' to each radio preset.
Technical specifications for the pre-amplifier section, including input impedance and sensitivity.
Specifications for output impedance and maximum output level for Pre-out and Tape.
Specifications for Treble and Bass tone control ranges.
Specifications for IR input resistance and trigger out voltage/current.
Technical specifications for the power amplifier section, including output power and distortion.
Technical specifications for the AM/FM tuner, including input sensitivity and distortion.
Dimensions, net weight, and shipping weight of the NAD C720BEE.
Troubleshooting for no sound, no sound on one channel, and weak bass/stereo image.
Solutions for issues with the remote control handset not functioning.
Troubleshooting for no sound with tuner, noise/hiss on AM/FM, and FM distortion.
Solutions for whistles, buzzes on FM & AM, and no RDS name (PS).
All safety and operating instructions should be read and retained for future reference.
All warnings on the product and in the operating instructions should be adhered to and followed.
Unplug before cleaning; use a damp cloth; do not use liquid cleaners or aerosols.
Do not use unrecommended attachments or place product on unstable surfaces.
Do not use near water, ensure adequate ventilation, and avoid blocking openings.
Operate from indicated source; consult dealer for home supply type; polarized plug safety feature.
Route cords safely; ground outdoor antenna systems for surge protection.
Unplug during lightning storms; avoid placement near overhead power lines.
Do not overload outlets; never push objects or spill liquids into the unit.
Refer servicing to qualified personnel for damaged cords, spilled liquid, exposure to water, or abnormal operation.
Use manufacturer-specified parts; perform safety checks after service.
Mount only as recommended; do not expose to rain/moisture; be aware of dangerous voltage.
Ensure ventilation space; specific safety advice for UK users regarding plugs and fuses.
Overview of rear panel connections and controls with numbered labels.
Description and operation of the remote control handset.
Step-by-step guide for installing batteries in the remote control.
General guidance on placement, ventilation, and initial connections.
Basic steps to get the unit operational quickly.
Detailed explanation of all rear panel input/output connectors.
Explanation of the soft clipping feature for amplifier protection.
Description of the subwoofer output connection.
Connections for external pre-amplifiers/processors and power amplifiers.
Outputs for recording or secondary zone audio and tape input.
Inputs for auxiliary line-level audio sources and audio from video sources.
Inputs for CD players and other line-level sources like Mini Disc.
Connection for infrared repeaters and output for controlling external equipment.
Detailed description of front panel controls like Power, Display, Volume, Tone, etc.
Buttons to select the active input to the C720BEE for speakers, tape output, and PRE OUT.
1/4" stereo jack socket for headphone listening with volume, tone, balance controls.
Description of remote control functions including power, inputs, volume, and tuner controls.
Controls for operating NAD CD Players and Cassette Decks via remote.
Switches to control tape/tuner or CD operations and device selection.
Information on using the internal AM/FM tuner for radio broadcasts.
Guidance on connecting and positioning FM and AM antennas for optimal reception.
Instructions on how to select and store favorite radio stations.
How to use the FM Mute/Mode button to adjust stereo reception and noise.
Using the Blend feature to reduce noise and hiss while retaining stereo separation.
Explanation of Radio Data System features like station-name and radio-text.
How to display station-name (PS) and radio-text (RT) information.
How to assign an eight-character 'User Name' to each radio preset.
Technical specifications for the pre-amplifier section, including input impedance and sensitivity.
Specifications for output impedance and maximum output level for Pre-out and Tape.
Specifications for Treble and Bass tone control ranges.
Specifications for IR input resistance and trigger out voltage/current.
Technical specifications for the power amplifier section, including output power and distortion.
Technical specifications for the AM/FM tuner, including input sensitivity and distortion.
Dimensions, net weight, and shipping weight of the NAD C720BEE.
Troubleshooting for no sound, no sound on one channel, and weak bass/stereo image.
Solutions for issues with the remote control handset not functioning.
Troubleshooting for no sound with tuner, noise/hiss on AM/FM, and FM distortion.
Solutions for whistles, buzzes on FM & AM, and no RDS name (PS).
The NAD C720BEE is a stereo receiver designed to provide high-quality audio reproduction and versatile connectivity for various audio components. It integrates an AM/FM tuner, a pre-amplifier, and a power amplifier into a single unit, offering a comprehensive solution for a stereo audio system.
The C720BEE serves as the central hub for an audio system, allowing users to connect and manage multiple audio sources, including CD players, tape decks, auxiliary devices, and a turntable (via a step-up amplifier like the NAD PP2). Its primary function is to receive audio signals from these sources, amplify them, and output them to loudspeakers or headphones.
The integrated AM/FM tuner provides access to radio broadcasts, with features like preset storage for favorite stations and RDS (Radio Data System) support for displaying station information such as station name and radio text. The tuner offers both manual and automatic search functions to find stations across the AM and FM bands.
The pre-amplifier section handles signal routing and basic audio adjustments, including volume, bass, treble, and balance controls. A "Tone Defeat" switch allows users to bypass the tone control section for a purer audio signal if desired. The "Soft Clipping™" feature is designed to minimize audible distortion when the amplifier is driven beyond its specified power output, gently limiting the output to prevent harsh "hard clipping."
The power amplifier section is responsible for amplifying the audio signals to drive loudspeakers. It features NAD's patented PowerDrive™ amplifier circuit, which is designed to provide high current drive and dynamic power, ensuring stable performance with various speaker impedances and delivering clean sound even during demanding musical passages. The receiver supports two sets of speakers (A and B), which can be engaged or disengaged independently or simultaneously.
The front panel of the C720BEE offers intuitive controls for everyday operation.
The supplied SR 5 remote control provides comprehensive control over the C720BEE and can also operate other NAD CD and cassette machines.
The manual provides a troubleshooting guide to address common issues such as no sound, sound on only one channel, weak bass, remote control not working, tuner issues (no sound, noise, distortion, whistles/buzzes), and no RDS name display. Solutions typically involve checking connections, power, input selections, antenna, or replacing batteries in the remote.
General| Total Harmonic Distortion | < 0.03% |
|---|---|
| Signal-to-Noise Ratio | > 100 dB |
| Dimensions | 435 x 100 x 290mm (W x H x D) |
| Weight | 6.5 kg |
| Damping Factor | > 100 |
| Power Output | 50W per channel into 8Ω |
| Outputs | Speaker outputs, tape out |
| Input Impedance | 47 kΩ (Line) |
| Speaker Impedance | 4 - 8 ohms |
| Frequency Response | 20Hz - 20kHz (+/-0.3dB) |
| Inputs | 1 phono input (MM) |
