Theta Digital Dreadnaught III 3-Channel Power Amplifier – 230V

This listing is for a Theta Digital Dreadnaught III power amplifier configured with three channels of amplification, ideal for front left/center/right duties in a high-performance home theater or multi-channel music system. The Dreadnaught III uses modular single and two-channel amplifier cards to deliver robust power with low noise and wide bandwidth, making it a popular choice among audiophiles and custom installers.

Each channel is built as a balanced bridge amplifier, with both balanced (XLR) and single-ended (RCA) inputs available on the respective modules, and heavy-duty binding posts for secure speaker connections. Theta designed this amplifier with extensive protection circuitry, including thermal monitoring, rail fuse indicators, soft-start sequencing, and DC protection, to help safeguard your system while maintaining high sonic performance.

The front panel provides a STANDBY button with status LED and a SURROUND button/LED for assigning channels to stereo or surround busses, while rear-panel trigger inputs and RS-232 connectivity allow integration into advanced control systems. With a wide frequency response and high signal-to-noise ratio, the Dreadnaught III is capable of driving demanding speakers cleanly and dynamically in a properly ventilated installation.

Condition & Inclusions

• Condition: Used – tested for basic power-on and front panel functionality (no further testing performed)

• Configuration: 3-channel amplifier configuration (three amp channels populated)

• Included: Amplifier unit only

• Not included: Power cord, remote trigger cables, RS-232 cables, rack ears, manuals, or any other accessories (user manual is available online as a downloadable PDF)

Because this is a large, high-power amplifier, proper ventilation and a grounded AC outlet are required for safe operation. Theta specifies that the unit should be used in a well-ventilated environment with no equipment stacked directly above or below it.

Please review all photos and details before purchase and ensure compatibility with your speakers and system, especially regarding balanced bridge outputs and non-common-ground speaker designs.