Dayton amp, $125 including paypal and shipping. I used this amp because it had a fully adjustable and defeatable low pass filter for a small OB setup. Or just with your ipod.
" Key features of the APA150 are high current, discrete power transistors (used in premium amp designs), a hefty toroidal power supply transformer, low-noise forced air cooling, a fully adjustable—and defeatable—electronic 50-150 Hz low-pass filter (18 dB/octave), and complete protection against electrical shorting and thermal overload. Also included is auto-on/off, silent turn-off with no audible transient, gold plated RCA inputs/outputs, and 5-way binding posts. Features and Specifications: *Measured power output: 2 x 75 watts RMS (into 4 ohms @ less than 0.01% THD) *Signal-to-noise ratio: greater than 100 dB *Class A/B design topology *Input impedance: 47k ohms *Auto-on sensitivity: 3 mV *Voltage requirement: 120/230 VAC, 60/50 Hz *Dimensions: 5-1/2" H x 6" W x 11-1/2" D."
