1. Introduction
The Cambridge Audio AXR100 is a powerful 100-watt stereo receiver designed to deliver high-fidelity audio performance. It integrates a range of connectivity options including analogue inputs, digital inputs, a dedicated phono stage for turntables, and an AM/FM tuner with RDS. Additionally, its built-in Bluetooth receiver allows for wireless audio streaming from compatible devices. This manual provides essential information for setting up, operating, and maintaining your AXR100 receiver.
2. Key Features
The AXR100 receiver offers a robust set of features for an enhanced audio experience:
- 100 Watts per Channel: Delivers substantial power for clear and dynamic sound reproduction.
- Built-in Bluetooth: Enables wireless streaming of music from smartphones, tablets, or computers.
- Integrated Phono Stage: Connects directly to turntables with Moving Magnet (MM) cartridges for vinyl playback.
- AM/FM Tuner with RDS: Provides access to radio broadcasts with Radio Data System information.
- Multiple Audio Inputs: Includes four analogue inputs, two TOSLINK optical digital inputs, and one coaxial digital input for versatile connectivity.
- Subwoofer Output: Dedicated mono RCA output for connecting a powered subwoofer to enhance bass response.
- Dual Speaker Outputs: Supports two sets of speakers (A and B) with independent switching.
- Headphone Output: Front-panel 3.5mm jack for private listening.
- Toroidal Transformer: Ensures stable and efficient power delivery for superior audio quality.
3. Setup and Connections
Proper setup ensures optimal performance and longevity of your AXR100 receiver. Follow these steps for installation and connection.
3.1 Placement
Place the AXR100 on a flat, stable surface away from direct sunlight, heat sources, or excessive moisture. Ensure adequate ventilation around the unit to prevent overheating. Do not place other components directly on top of the receiver's ventilation grilles.
3.2 Speaker Connections
The AXR100 supports two pairs of speakers (A and B). Use high-quality speaker cables for the best audio performance. Ensure correct polarity (+ to + and – to –) for all connections.
- Identify the positive (+) and negative (–) terminals on your speakers and the AXR100.
- Connect the right speaker to the "Right" terminals and the left speaker to the "Left" terminals for both Speaker A and Speaker B outputs.
- For Speaker A, connect to the top set of binding posts. For Speaker B, connect to the bottom set.
- Ensure all connections are secure to prevent short circuits. The AXR100 is compatible with speakers having an impedance of 4-8 ohms.
3.3 Audio Source Connections
Connect your audio components to the appropriate inputs on the rear panel of the AXR100.
- Analogue Inputs (A1-A4): Use RCA cables to connect devices such as CD players, tape decks, or other line-level sources.
- Phono Input (MM): Connect your turntable to the dedicated PHONO input. Ensure your turntable has a Moving Magnet (MM) cartridge. Connect the turntable's ground wire to the AXR100's ground terminal to reduce hum.
- Digital Inputs (D1-D3):
- Optical (TOSLINK D1, D2): Connect devices like TVs, game consoles, or digital media players using optical cables.
- Coaxial (D3): Connect devices with a coaxial digital output, such as some CD players or network streamers.
- Subwoofer Output: Connect a powered subwoofer to the "Sub Out" RCA jack using a single RCA cable.
- Record Output (Rec Out): Use this output to connect to a recording device, such as a tape deck.
- Front Panel Aux Input: For temporary connections of portable devices, use the 3.5mm AUX IN jack on the front panel.
3.4 Antenna Connection
Connect the supplied FM antenna to the "FM 75Ω" terminal and the AM loop antenna to the "AM" terminals for radio reception. Extend the FM antenna fully for optimal signal reception. For improved reception, consider an external antenna.
3.5 Power Connection
Once all audio and speaker connections are made, connect the supplied power cord to the AXR100's AC inlet and then to a suitable wall outlet.
4. Operating Instructions
This section details the basic operation of your AXR100 receiver.
4.1 Power On/Off
Press the Power button on the front panel or the remote control to turn the unit on or off. The display will illuminate when the unit is powered on.
4.2 Input Selection
Select your desired audio source by pressing the corresponding input buttons (FM/AM, A1/D1, A2/D2, A3/D3, Phono, Speaker A/B) on the front panel or using the input selector buttons on the remote control. The selected input will be shown on the display.
4.3 Volume Control
Adjust the listening volume using the large Volume knob on the front panel or the Volume Up/Down buttons on the remote control.
4.4 Tone Controls
The AXR100 features Bass and Treble controls to adjust the tonal balance of your audio. Access these via the Menu button on the front panel or remote. Adjust settings to your preference, or set them to '0' for a flat, uncolored sound.
4.5 Bluetooth Operation
- Select the Bluetooth input on the AXR100. The display will show "BT" or "Bluetooth".
- On your Bluetooth-enabled device (smartphone, tablet), enable Bluetooth and search for available devices.
- Select "Cambridge Audio AXR100" from the list of devices.
- Once paired, you can stream audio wirelessly from your device to the AXR100.
4.6 Tuner Operation (AM/FM)
- Select the FM/AM input.
- Use the Tune +/- buttons on the remote or the front panel to manually tune to a station.
- To auto-scan for stations, press and hold the Tune +/- buttons.
- To save a preset, press the Store button, then use the Preset +/- buttons to select a preset number, and press Store again to confirm.
- To recall a preset, use the Preset +/- buttons.
5. Maintenance
To ensure the longevity and optimal performance of your AXR100 receiver, follow these maintenance guidelines:
- Cleaning: Disconnect the power cord before cleaning. Use a soft, dry, lint-free cloth to wipe the exterior surfaces. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
- Ventilation: Ensure that the ventilation openings on the top and sides of the unit are not blocked. Proper airflow is crucial to prevent overheating.
- Dust: Periodically use a soft brush or a low-power vacuum cleaner with a brush attachment to remove dust from the ventilation grilles.
- Environmental Conditions: Avoid exposing the unit to extreme temperatures, humidity, or direct sunlight.
6. Troubleshooting
If you encounter issues with your AXR100, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected; power outlet faulty. | Ensure power cord is securely plugged in. Try a different power outlet. |
| No sound from speakers | Incorrect input selected; speaker cables loose or incorrect polarity; volume too low; Speaker A/B not selected. | Select the correct input. Check all speaker cable connections for tightness and correct polarity. Increase volume. Ensure Speaker A or B (or both) is selected. |
| No sound from one channel | Speaker cable loose; balance control adjusted incorrectly. | Check speaker cable connections for the affected channel. Reset balance control to center. |
| Humming or buzzing sound | Ground loop; interference from other electronics; loose phono ground wire. | Ensure turntable ground wire is connected to the AXR100 ground terminal. Move the unit away from other electronic devices. Try plugging components into different outlets. |
| Bluetooth connection issues | Device not in pairing mode; AXR100 not in Bluetooth input; interference; device too far. | Ensure AXR100 is on Bluetooth input. Put your device in pairing mode. Move device closer to the receiver. Clear previous Bluetooth pairings on your device and try again. |
| Poor radio reception | Antenna not connected or poorly positioned; weak signal. | Ensure FM/AM antennas are correctly connected and fully extended. Reposition the antenna for better reception. Consider an external antenna for improved signal. |
If the problem persists after trying these solutions, please contact Cambridge Audio customer support or your dealer for further assistance.
7. Specifications
Detailed technical specifications for the Cambridge Audio AXR100 Stereo Receiver:
| Feature | Detail |
|---|---|
| Power Output | 100 Watts per channel (into 8 ohms) |
| Frequency Response (-1dB) | 5Hz - 50kHz |
| S/N Ratio (ref 1W) | >82dB (unweighted) |
| Input Impedances | 47k ohms |
| Max Power Consumption | 550W |
| Subwoofer Output | 200Hz 2nd order L+R Level follows volume setting |
| Connectivity Technology | S/PDIF, TOSlink, Bluetooth |
| Controller Type | Mechanical knob and buttons |
| Special Feature | RDS (Radio Data System) |
| Compatible Devices | Speaker, Tablet, Amplifier, Smartphone, Television, Personal Computer, Game Console |
| Connector Type | 3.5mm Jack, Coaxial, Optical, RCA |
| Audio Output Mode | Stereo |
| Surround Sound Channel Configuration | 2 |
| Color | Grey |
| Product Dimensions (D x W x H) | 13.4 x 16.9 x 4.3 inches (340 x 430 x 110 mm) |
| Item Weight | 17.82 pounds (8.1 kg) |
| Batteries (for remote) | 2 AA batteries required |
| Date First Available | June 3, 2019 |
| Manufacturer | Cambridge Audio |
8. Warranty and Support
Cambridge Audio products are designed and manufactured to the highest standards. For warranty information, please refer to the warranty card included with your product or visit the official Cambridge Audio website. For technical support, troubleshooting assistance beyond this manual, or service inquiries, please contact Cambridge Audio customer support directly or consult your authorized dealer.
You can find more information and support resources on the Cambridge Audio Brand Store.
