Rougue Audio
http://www.rogueaudio.com/
Medusa

General Features:
- Large high performance torodal transformers
- Massive linear power supplies
- Balanced (XLR) and single ended (RCA) inputs
- Heavy-duty gold plated binding posts
- Two 12AU7 tube complement
- Short circuit protection
- Standby circuitry for solid state components
- Slow start circuit for extended tube life
- Machined aluminum faceplate
- Heavy (2 ounce) copper circuit board
- All precision components
- Fully tested, burned in, and auditioned
- 3 year limited warranty (6 months on tubes)

Specifications:
- Output power Medusa: 200/400 WPC 8/4 Ohms
- Output power Hydra: 100/200 WPC 8/4 Ohms
- Input impedance: 200K Ohms
- frequency response: 10Hz - 20KHz ± 1dB
- THD: <0.1% typ., <1.0% at rated power
- input sensitivity: 1.0V RMS
- dimensions: 18" W x 15" D x 5.5" H
- weight: Medusa 38 lbs Hydra 34 lbs
- power requirements: 115/230V - 50/60Hz