Cambridge Audio Alva Duo Phono Preamplifier

Cambridge Audio Alva Duo phono preamplifier

The Cambridge Audio Alva Duo is a dedicated phono preamplifier designed to deliver accurate, low-noise amplification for vinyl playback while expanding compatibility with modern audio systems. Built to support both Moving Magnet and Moving Coil cartridges, it ensures precise signal handling and enhanced audio detail, making it suitable for serious vinyl listeners seeking improved performance.

Engineered with a switch-mode power supply operating outside audible frequencies, the Alva Duo significantly reduces hum and interference. Its surface-mounted circuit board layout further minimizes distortion, allowing cleaner signal paths and improved sonic clarity. The shielded construction enhances noise isolation, ensuring that more of the original recording is preserved without unwanted background artifacts.

The integrated headphone amplifier provides a dedicated listening path, enabling detailed and private playback without requiring a separate amplifier. With accurate volume control, it allows precise level adjustment across different headphone types while maintaining signal integrity.

Designed for flexibility, the Alva Duo enables connection of turntables to amplifiers lacking phono inputs via standard AUX connections. Even in systems with built-in phono stages, it offers improved performance due to its superior circuitry and noise management.

Additional refinement features include a subsonic filter to eliminate low-frequency rumble caused by record imperfections and a balance control to correct channel imbalances. With efficient power management, including low standby consumption and automatic power-down, the Alva Duo combines high-fidelity performance with practical usability for modern vinyl systems.

Features of Alva Duo

• Supports both Moving Magnet and Moving Coil cartridges
• High-gain phono stage for low-output cartridge amplification
• Integrated headphone amplifier with 6.35 mm output
• Switch-mode power supply for reduced hum and noise
• Surface-mount circuit design for lower distortion
• Subsonic filter for low-frequency rumble reduction
• Channel balance control for accurate stereo imaging
• Low-noise signal path for enhanced detail retrieval
• AUX-level output for broad amplifier compatibility
• Shielded chassis for improved interference protection
• Precise volume control for headphone listening
• Auto power-down for energy-efficient operation
• Low standby power consumption
• Compact design for easy system integration

Specifications of Alva Duo