DM58 Monoblocks

About the DM58 Monoblocks

The Halcro DM58 Monoblock is a premium solid-state power amplifier designed for audiophiles seeking exceptional sound purity and reliability. Each monoblock delivers more than 200 watts into 8 ohms and over 350 watts into 4 ohms, with distortion levels below 4000 parts per billion at full power, ensuring extremely clean and accurate audio reproduction. It features a universal power supply with active power-factor correction that operates from 85V to 270V RMS without any switches, minimizing mains hum and ripple. The amplifier includes both balanced and unbalanced inputs with 100k ohm impedance, a maximum slew rate of 100V/µs, and extensive protection mechanisms such as short-circuit proofing, overcurrent limiting, and thermal power limiting. The chassis is constructed with heavy shielding compartments to isolate power supply, input amplifier, and power amplifier sections, reducing interference. The design incorporates high-quality industrial-grade components, multi-layer PCBs, and comprehensive EMI filtering. The amplifier weighs 57 kg (125 lbs) and measures 31" H x 16" W x 16" D. It is noted for its warm-up time and unique air pressure switch for operation. The DM58 is highly regarded for its fidelity, with distortion measured in parts per billion, making it suitable for the most demanding high-fidelity systems. Originally