Keep your EM Acoustics system performing exactly as intended with the DU-1503 replacement 15” drive unit (01A010), designed for servicing EMS-152 and X3 loudspeakers. This genuine EM Acoustics spare is the correct LF driver choice when you need to restore original output, tonal balance and reliability after damage or wear—ideal for touring inventories, install spares, and service departments looking to keep rigs consistent show after show. Built to match the cabinet’s factory voicing and performance expectations, it’s the straightforward way to get your EMS-152/X3 back to spec with confidence.