The PRO-250 is UltraSound's next generation acoustic ampdelivering unmatched acoustic tone in a lightweight combo package. The PRO-250 is a triamped acoustic amplifier delivering 150W RMS through a heavy-duty 10" Eminence speaker, 50W RMS through a special 4" midrange driver, and 50W through its high-efficiency "supertweeter" driver. The super-tweeter is controlled by its own independent volume control and uses active crossover technology for precise control of highs and harmonics. The PRO-250 features two independent channels; each with volume and active EQ along with independent 24-bit digital effects processors producing studio quality reverbs, delays, and chorus effects. Channel 2 provides an XLR input for your mic, making the PRO-250 the perfect solution for the acoustic singer-songwriter. Auxiliary stereo input for playing along with your MP3 or CD player, drum machine, and other devices. 3 balanced XLR outs, 3 line outs, and 2 effects loops provide complete connectivity for the stage and studio.