M24

About the M24

The Monarchy Audio M24 is an integrated tube DAC and preamplifier featuring two digital inputs (SPDIF coaxial RCA and TOSLINK optical) supporting sampling rates from 16-bit/44.1kHz up to 24-bit/96kHz. It uses Burr Brown PCM63P-K multibit DAC chips with a tube analog stage for a liquid, natural sound. The unit includes a built-in vacuum tube line amplifier with internal volume control, allowing direct connection to power amplifiers. It has a front panel switch to select between the DAC output or an analog line input, and outputs include a volume-controlled line out and a direct DAC analog output. The M24 is housed in a robust chassis with separate toroidal transformers and multiple regulated power supply sections for digital and analog circuits. It features a digital display showing input selection and sampling frequency. The design emphasizes tonal neutrality, excellent inner detail, smooth treble, and well-controlled bass with good weight and extension. The unit supports tube rolling, with stock tubes performing well and options for upgrades such as Siemens ECC88 tubes. Dimensions are approximately 17" wide, 4" high, and 12-14" deep, weighing about 24 lbs. It is The M24 does not support multi-channel SACD, DVD-A, or compressed formats like MP3 or iPod audio. It is praised for its musicality, spacious soundstage, and versatility as both a DAC and preamplifier.