yust a suggestion - buy a pair of these:

from art's website:
SLA1 - Power Amplifier Overview
The SLA-1 Studio Linear Amplifier is a robust yet compact power amplifier designed for studio and even live applications. It has been designed and engineered to provide clean, quiet power and excellent sound with ultra-low noise and distortion.
The SLA-1 is rated at 100 watts rms/channel @ 8 ohms (130 watts rms/channel @ 4 ohms and 260 Watts/Bridged Mono @ 8 ohms), with hum and noise >100dB, and has an input impedance of 22k ohm unbalanced (44k ohm balanced). It features a Toroidal Transformer, XLR & ¼" Inputs, Ground Lift Switch, Fan Cooled Design, Power, Clip, Signal and Protect LEDs, one IU Spacing and a frequency response of 10 Hz to 40 kHz within 1dB.
It also features an input sensitivity of 1V for rated power into 8 ohms, and silent SmartFan cooling and custom convection heat radiating fins. The SLA-1 is perfect for professional, project and home studios, and is an excellent compliment to the new ART SLM-1 Studio Linear Monitors.
The SLA-1 is a powerful, compact amplifier, and its rugged, steel chassis is designed for years of durable and reliable use.
The SLA-1 features a three-year warranty.
will cost <$400, from a place like:
http://64.213.162.194/Products/pages/8562/index.fcmlhttp://www.artroch.com/doug s.