L Acoustics LA12X 4 Channel Amplified Controller 100789570 LF Transducer: DVX3180A 457 mm Custom TAB Funkenwerk AMI LF Transducer: DVX3180A 457 mm (18 in) tongue and groove sealing extrusion 20 Hz 20 kHz System amplifier (class D) with an output power of 4 x 3
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