Prometheus Mono Block

About the Prometheus Mono Block

The Theta Digital Prometheus is a monoblock Class-D power amplifier designed in collaboration between Theta Digital's chief engineer Dave Reich and Bruno Putzeys of Hypex fame. It features a massive 1.44kVA toroidal linear power supply transformer, contributing to its 54.5 lbs weight, and uses the Ncore NC1200 Class-D module. The amplifier delivers 250W into 8 ohms, 500W into 4 ohms, and 850W into 2 ohms with harmonic distortion less than 0.01% at 500W and less than 0.001% THD+N at 1W. It has an extremely low output impedance, resulting in a very high damping factor (>6500 at 100 Hz). The Prometheus is load invariant with frequency response +0, -.5 dB from 0 Hz to 20 kHz. It supports both single-ended RCA and balanced XLR inputs, selectable via a toggle switch, and features Cardas speaker binding posts for biwiring. The amplifier is housed in a deep aluminum chassis with a curved front panel and built-in handle, designed as mirrored pairs for left and right channels. It includes thermal and overcurrent protection and can be remotely triggered. The unit measures approximately 9 1/16" W x 13 7/8" H x 20" D and consumes less than 1W in standby and up to 1200W at maximum output. The Prometheus is acclaimed for its dynamic range, bass impact, detailed and three-dimensional soundstage, and exceptional midrange clarity, making it one of the best sounding amplifiers in its class.