Xcelsus Audio DEFINIO 4 – Definio Series Class D 4 channel Amplifier - Previous Demo

Previous Demo Unit - Perfect Working Condition

The Xcelsus Audio DEFINIO 4 represents the pinnacle of Class D amplifier technology, delivering exceptional audio performance in an ultra-compact design. This revolutionary 4-channel digital amplifier combines the efficiency of Class D topology with the sound quality traditionally associated with Class AB amplifiers, making it an ideal choice for discerning audiophiles seeking both power and precision.

Engineered by Swedish audio specialists, the DEFINIO 4 delivers robust 105 watts RMS per channel at 4 ohms, escalating to an impressive 165 watts at 2 ohms. When bridged, this compact powerhouse produces up to 320 watts, revealing its true potential for driving demanding speaker configurations. The amplifier's advanced circuitry ensures pristine audio reproduction with minimal distortion and maximum efficiency.

Superior Audio Engineering

The DEFINIO 4 showcases remarkable technical specifications that set it apart from conventional amplifiers. With a signal-to-noise ratio of 90 dB (A-weighted) and total harmonic distortion below 0.02% at 5W, 1 kHz, this amplifier delivers crystal-clear audio reproduction across its expansive 10 Hz to 40 kHz frequency response. The damping factor exceeding 100 ensures tight control over connected speakers, resulting in accurate bass response and detailed midrange clarity.

Compact Design Meets High Performance

Despite its impressive power output, the DEFINIO 4 maintains an incredibly compact footprint measuring just 41.8 x 104 x 270mm. This space-efficient design makes installation possible in tight spaces while maintaining optimal thermal management. The amplifier's elegant black finish with gold accents adds a premium aesthetic that complements any audio system installation.

Advanced Control Features

The DEFINIO 4 includes sophisticated control options including adjustable high-pass and low-pass filters, allowing precise tuning for various speaker configurations. The included bass remote control provides convenient subwoofer level adjustment from the driver's seat. Input sensitivity ranges from 0.2 to 6V with 5 kohm input impedance, ensuring compatibility with a wide range of source units and audio processors.