ALESIS M1 ACTIVE 520 Studio Monitors These great Alesis monitors feature studio quality dual amps that ensure consistent playback performance. Features: Accurate response for great sound Active bi-amplifiers and electronic crossovers 5" dual-magnet low freq. speaker 1" silk-dome high freq. speaker Frequency response: 38Hz-23.5kHz Size: 15"h x 8.5"w x 9.75"d. Wt. 39 lbs. (pr.)

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More info: Alesis M1-ACTIVE-520 Two Way Studio Monitors-Pair

ALESIS M1 ACTIVE 620 Studio Monitors These great Alesis monitors feature studio quality dual amps that ensure consistent playback performance. Features: Accurate response for great sound Active bi-amplifiers and electronic crossovers 6" dual-magnet low freq. speaker 1" silk-dome high freq. speaker Frequency response: 38Hz-23.5kHz Size: 15"h x 8.5"w x 9.75"d. Wt. 39 lbs. (pr.)

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More info: Alesis M1-ACTIVE-620 2-Way Studio Monitors (Pr)