Hydra vs Pharaoh
The Pharaoh's power @ 8ω is 185W against the Hydra's 100W and its power @ 4ω 350W against 200W. Both share thd (0.100%) and output voltage (1.0V RMS).
AI-generated product photo — not official manufacturer imagery.
Hydra
Rogue AudioAmplifiersTube AmplifiersPower AmplifiersDiscontinued
Estimated price (community-sourced)
$4,000
Around — community and catalog average, updates slowly
About the Hydra
The Rogue Audio Hydra is a tube/Class D hybrid power amplifier that integrates the smooth, organic sound of tubes with the dynamics and efficiency of Class D solid state technology. It features a triode tube front end combined with a Class D Mosfet output section, delivering 100 watts per channel into 8 ohms and 200 watts per channel into 4 ohms. The amplifier is designed with massive linear power supplies, large high-performance toroidal transformers, and a heavy 2-ounce copper circuit board for superior performance and reliability. It includes balanced (XLR) and single-ended (RCA) inputs, heavy-duty gold-plated binding posts, short circuit protection, standby circuitry for solid state components, and a slow start circuit to extend tube life. The Hydra runs cool, requires no tube biasing or regular maintenance, and is available in black or silver finishes. It measures 18" W x 15" D x 5.5" H and weighs 34 lbs. The amplifier is fully tested, burned in, auditioned, and comes with a 3-year limited warranty (6 months on tubes).
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 100W @ 8Ω
- Power @ 4Ω
- 200W @ 4Ω
- Amplifier Class
- D
Analog Output
Analog signal output specifications
- THD
- 0.100%
- Output Voltage
- 1.0V RMS
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 457.2 × 139.7 × 381 mm (W × H × D)
- Weight
- 15.42 kg (34 lbs)
Key Specifications
Power: 100W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions