Cambridge Audio Alva Duo User's Manual

Cambridge Audio Alva Duo Preamplifier manual cover

Pages 10

Year 2018

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Cambridge Audio Alva Duo Preamplifier Specification

The Cambridge Audio Alva Duo Preamplifier is a high-performance audio component designed to enhance the playback of vinyl records. It features a dedicated phono stage compatible with both moving magnet (MM) and moving coil (MC) cartridges, allowing for versatile connectivity with a wide range of turntables. The Alva Duo is engineered with precision to deliver clear and balanced sound, minimizing noise and distortion through its sophisticated circuitry.

The preamplifier incorporates an integrated headphone amplifier, providing users with the option to enjoy their vinyl collection through headphones without the need for additional equipment. This feature is complemented by a front-panel headphone output, ensuring easy access and usability. The Alva Duo also includes a subsonic filter, which effectively reduces low-frequency rumble that can be caused by imperfections in vinyl records or the playback environment, preserving the integrity of the audio signal.

A notable aspect of the Cambridge Audio Alva Duo is its attention to detail in build quality, featuring a solid, low-resonance chassis that contributes to the overall reduction of unwanted vibrations and noise. This design consideration enhances the clarity and precision of audio reproduction. On the connectivity front, the Alva Duo is equipped with RCA inputs and outputs, facilitating seamless integration into existing audio systems.

The power supply of the Alva Duo is internally regulated to ensure consistent performance and minimize interference. This preamplifier embodies Cambridge Audio's commitment to delivering high-fidelity audio components that meet the demands of audiophiles and vinyl enthusiasts alike, offering an exceptional listening experience characterized by its rich, detailed sound quality and reliable performance.

Cambridge Audio Alva Duo Preamplifier F.A.Q.

How do I connect the Cambridge Audio Alva Duo Preamplifier to my turntable and speakers?

To connect your turntable to the Alva Duo, use RCA cables to connect the turntable's output to the Alva Duo's input labeled "Phono." Next, connect the Alva Duo's output to your amplifier or active speakers using another set of RCA cables. Ensure the ground wire from the turntable is connected to the ground terminal on the Alva Duo to avoid hum.

What should I do if I hear a humming noise when using the Alva Duo?

If you hear a humming noise, first ensure the ground wire from your turntable is securely connected to the ground terminal on the Alva Duo. Check all RCA connections to ensure they are firmly connected. If the hum persists, try changing the placement of your cables to avoid interference from power cables or other electronic devices.

Can I use headphones directly with the Alva Duo Preamplifier?

No, the Alva Duo does not have a headphone output. You will need to connect it to an amplifier or receiver that has a headphone jack if you wish to use headphones.

How do I switch between MM and MC cartridges on the Alva Duo?

To switch between MM (Moving Magnet) and MC (Moving Coil) cartridges, use the switch located on the back panel of the Alva Duo. Make sure the unit is powered off before changing the setting to prevent any damage.

The LED light on my Alva Duo is not turning on. What could be the issue?

If the LED light is not turning on, first ensure that the power cable is securely connected and that the power outlet is functional. Check the power switch on the back of the unit to ensure it is in the 'on' position. If the issue persists, the unit may require servicing.

What is the best way to clean and maintain the Alva Duo Preamplifier?

To clean the Alva Duo, use a soft, dry cloth to wipe down the exterior. Avoid using any abrasive cleaners or solvents as they may damage the finish. Regularly check and clean the RCA connectors to ensure they remain free of dust and debris.

Can I use the Alva Duo with a digital audio system?

The Alva Duo is designed for analog audio signals and does not have a digital output. To integrate with a digital audio system, you would need an external analog-to-digital converter.

Is it possible to adjust the gain on the Alva Duo Preamplifier?

The Alva Duo has a fixed gain setting, optimized for both MM and MC cartridges. If you need to adjust the gain, you would need to do so from your amplifier or receiver.

How can I troubleshoot a lack of audio output from the Alva Duo?

If there is no audio output, first check all cable connections to ensure they are secure. Ensure the correct input is selected on your amplifier. Verify that the Alva Duo is powered on and that the correct cartridge type (MM or MC) is selected. Finally, check the volume level on your amplifier or receiver.

What is the recommended warm-up time for the Alva Duo for optimal performance?

The Alva Duo does not require a specific warm-up time, but allowing it to run for about 10-15 minutes before critical listening can ensure optimal performance as electronic components reach their optimal operating temperature.