I got a Behringer ACX450 Ultracoustic 45-Watt Amplifier to use with my DC16GTE that seems to work well and it was under $200. It seems to produce a clean sound, is small and has plenty of power for a small room like a dining room that seats maybe 100. It has separate controls for the 2 channels including a few effects and a pedal to control the effects on each channel separately. Admittedly, I bought it on price vs features rather than name but I'm happy with it.