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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.
Amplification power output and characteristics
Analog signal output specifications
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The Statement P5's power @ 8ω is 325W against the Prometheus Mono Block's 250W and its damping factor >600 against >1000. Both share power @ 4ω (500W) and thd (0.001%).
The AW180's power @ 4ω is 380W against the Prometheus Mono Block's 500W and its class AB against D. Both share power @ 8ω (250W) and thd (0.001%).
The KA-S 270's power @ 8ω is 270W against the Prometheus Mono Block's 250W, its power @ 4ω 450W against 500W, and its class Solid_state against D. Both share damping factor (>1000).
The Cinenova Grande 7 BR's power @ 8ω is 360W against the Prometheus Mono Block's 250W and its power @ 4ω 610W against 500W. Both share thd (0.001%) and damping factor (>1000).
Nord Acoustics Nord One SE UP NC500MB
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