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Whether battery powered or plugged in, the BA-330 delivers high-performance sound that defies its size. Its digital stereo amplifier drives four 6.5? stereo speakers and two tweeters, positioned for wide stereo projection. It?s the ideal, all-in-one portable PA solution for small music venues, worship events, conferences, seminars, business meetings, and much more. – All-in-one portable digital PA system suitable for use anywhere – Powerful high-quality stereo sound for audiences of up to 100 people – No setup required, just plug in and go! – Powered by AC power or eight AA batteries – Four custom-designed 6.5? speakers and two tweeters for wide stereo projection – Built-in effects: EQ, reverb, delay, and wide (on/off per channel) – Four-channel configuration: two channels for mic/instruments plus two channels for stereo inputs – Stereo Aux input with dedicated volume-control knob – Advanced Intelligent Anti-Feedback function – Built-in tilt-back stand enables optimal monitoring angle