SolidDrive SD-250 50W Per Channel Class D Amplifier

SKU: SOSD250 MFR: SD250
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Key Features

  • Experience high power output with the SolidDrive SD-250, delivering 50W per channel at 8 ohms.
  • Enjoy pristine audio quality with a low THD (Total Harmonic Distortion) for clear sound amplification.
  • Achieve superior sound with a signal-to-noise ratio exceeding 83 dB, ensuring minimal background noise.
  • Benefit from reliable protection circuitry, safeguarding your amplifier and connected speakers.
  • The broad 20 Hz - 20 kHz frequency response ensures accurate audio reproduction across all ranges.
  • This versatile power amplifier is perfect for installations, offering both pole and surface mount options.
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Special Order?Estimated to Ship: 08/19/2025
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SolidDrive SD-250 Specifications

  • System Type

    50 W per channel (8 ohms), class D amplifier

  • Frequency Response

    20 Hz - 20 kHz

  • Maximum Gain

    34 dB (8 ohms)

  • Power

    Power per Channel @ < 1 % THD: 50 W (8 ohms), 65 W (4 ohms)
    Bridged Mono Power @ < 1 % THD: 90 W (4 ohms)

  • Power Supply

    32 VDC, 3.75 A

  • Signal to Noise Ratio

    > 83 dB (50 W)

  • Input Impedance

    47 kOhms

  • Dimensions

    1.2 x 3.9 x 4" (3 x 9.9 x 10.2 cm)

  • Weight

    0.56 lbs (0.26 kg)

  • UPC Code

    644216215201

About SolidDrive SD-250

For those seeking a powerful and reliable solution to their audio needs, the SolidDrive SD-250 Class D Amplifier offers an impressive 50 watts per channel. This high-quality, compact 2-channel amplifier is designed with additional heat sink surfaces, ensuring extended duty at full power.

The SD-250 stands out with its custom electronic EQs, specifically designed for various surfaces such as glass, sheet rock, and wood, or can be bypassed entirely. This feature ensures optimal audio performance, allowing the amplifier to adapt to different environments and deliver the best sound quality possible.

This durable Class D amplifier is capable of operating in three modes: stereo, dual mono, or bridged mono. In stereo mode, each input channel is directly linked to its corresponding output channel. In dual mono mode, the left input is distributed to both output channels, while in bridged mono mode, the left input is directed to the bridged output.

The SD-250 is equipped with a variety of input options, including balanced stereo euroblock, unbalanced line level mini jack, and a stereo speaker level Euroblock input. This makes it a versatile choice for applications with low wattage speaker outputs.

With a maximum gain of 34 dB, the SD-250 is not just powerful, but also efficient. It includes a selectable 12-32 v external trigger input or auto standby feature to conserve energy, making it an eco-friendly choice.

Ideal for use with SolidDrive transducers, the SD-250 is perfect for a range of applications, from digital signage and education to point of purchase, museums, surgical centers, and AV carts. It's also an excellent choice for boosting limited source output from devices like computers and A/V projectors.

In summary, the SolidDrive SD-250 Class D Amplifier is a robust, high-quality audio solution, offering power, versatility, and reliability in a compact package.

SolidDrive SD-250 Features

  • 34 dB maximum gain with 2x 50 watt output.
  • Built-in, selectable SolidDrive EQ for wood, glass, drywall or flat setting.
  • Three operating modes: stereo, mono or bridged mono
  • Three user selectable inputs: balanced stereo (euroblock), stereo unbalanced mini jack, or high level euroblock.
  • External 12-32 V trigger
  • Signal detecting auto standby to conserve energy
  • Dual concentric gain controls for independent channel control
  • 20 Hz - 20 kHz frequency response
  • Rugged aluminum housing

Product Documents

User Manual

Key Features

  • Experience high power output with the SolidDrive SD-250, delivering 50W per channel at 8 ohms.
  • Enjoy pristine audio quality with a low THD (Total Harmonic Distortion) for clear sound amplification.
  • Achieve superior sound with a signal-to-noise ratio exceeding 83 dB, ensuring minimal background noise.
  • Benefit from reliable protection circuitry, safeguarding your amplifier and connected speakers.
  • The broad 20 Hz - 20 kHz frequency response ensures accurate audio reproduction across all ranges.
  • This versatile power amplifier is perfect for installations, offering both pole and surface mount options.

What's in the box:

  • SD-250 50W Per Channel Class D Amplifier
  • Power Supply
  • Stereo RCA Female to Mini Male Adapter
  • Pole / Surface Mount Adapter
  • 2x 4-Pin Euroblock Male Connectors
  • 2x 3-Pin Euroblock Connectors
  • (Batteries & Power Not Included)
  • SolidDrive 7 Year Limited Warranty