dm10

About the dm10

The Halcro dm10 is a premium stereo preamplifier designed with cutting-edge technology and a distinctive industrial design. It features seven sets of inputs including three unbalanced voltage inputs, three balanced voltage inputs, and one unbalanced current input, all programmable to any source device. The unit includes a fully adjustable phono stage supporting both moving coil (MC) and moving magnet (MM) cartridges with variable gain, capacitance, and resistance settings. The phono stage employs a four-stage design with ultra-low noise input, high input impedance FET amplifier, rumble filter, and precise RIAA equalization. Outputs include multiple balanced and unbalanced voltage and current mode pairs, tape output, and a headphone jack. The volume control uses dual identical stages to minimize noise, and all switching including volume control is done via mechanical relays to ensure zero distortion and ideal electrical characteristics. The power supply is a switch-mode design operating at 110 kHz with extensive filtering and transient protection, ensuring exceptional regulation and low electromagnetic interference. The chassis is robust, weighing approximately 23 kg (50 lbs), with a suspended internal module design to reduce vibration and interference. The front panel features a clean layout with an LCD display showing input, attenuation, polarity, and stereo/mono status. The dm10 was introduced around 2004-2005 with a It is highly regarded for its extremely low distortion (THD below -120 dB), low noise, and ability to drive complex systems including bridged power amplifiers. The unit includes a remote control and supports flexible input naming and volume settings per input source, addressing differences in source output levels. Overall, the dm10 exemplifies Halcro's philosophy of achieving musical purity through advanced engineering and meticulous design.