Moon Compass Collection 371 Network Amplifier

MDCA stands for MOON Distortion-Cancelling Amplifier. As the name implies, MDCA is a proprietary amplification circuit that amplifies the signal without the distortions and colourations brought on by past methods of signal correction. In other words, those drawbacks have been eliminated in the MDCA design.

MDCA’s error correction works outside the audio signal path—a major advantage in reducing distortion—and in doing so, it also reduces output impedance and improves the damping factor. The MDCA amplifier compares input and output signals to determine minute signal corrections in real time, and injects the “correction signal” directly into the output stage. The result is previously unattainably-low levels of distortion that were not possible with any previous non-global negative feedback amplifier.

Key technical highlights include:

• More precise signal correction than any amplifier using a traditional feedback design
• More efficient correction applied to the output section (avoids the high-gain/high-power signal path)
• DC-coupled to improve clarity at all audible frequencies
• MDCA removes DC naturally, therefore no DC servo circuit is required
• Wider bandwidth
• Higher damping factor than previously possible
• Significantly lower noise and distortion than previous MOON amplifier designs