The SolidDrive SD250 is a 50-watt per channel (4 ohm) Class D amplifier designed for use with SolidDrive transducers on wood, glass, drywall, or flat surfaces. Featuring built-in selectable EQ, the SD250 optimizes planar-source audio performance across various surfaces. The amplifier offers three operating modes: stereo, dual mono, and bridged mono, and multiple input options including balanced stereo Euroblock, unbalanced mini jack, and high-level Euroblock.
Compact and rugged, the SD250 includes dual concentric gain controls, external 12–32V trigger, and signal-detecting auto standby for energy efficiency. Its full-range 20 Hz – 20 kHz frequency response ensures high-fidelity audio. Optional accessories include a rack-mount adapter kit (AC-SA502-RMA).
SolidDrive SD250 Key Features:
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50W per channel (4 ohm), 34 dB maximum gain
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Built-in selectable EQ for wood, glass, drywall, or flat surfaces
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Three operating modes: stereo, dual mono, bridged mono
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Three input options: balanced stereo Euroblock, unbalanced mini jack, high-level Euroblock
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External 12–32V trigger and auto standby
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Dual concentric gain controls for independent channel adjustment
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Frequency response: 20 Hz – 20 kHz
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Compact aluminum housing: 1.2" x 3.9" x 4"
Applications:
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Compatible with all SolidDrive actuators (SD1, SD1G, SD1SM, MSK-1)
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Ideal for residential and commercial sound masking, hidden audio, or immersive planar-source installations
