Rainbow SL-M4 4-Channel Class D Mini Amplifier

Micro 4-Ch amplifier 75W RMS x 4

SKU: 280003


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  • 1 Year Manufacturer Warranty
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Rainbow Audio SL-M4 4-Channel Micro Amplifier – Compact Power and Precision

Rainbow Audio is recognized for its high-quality audio amplification. Introducing the SL-M4, a 4-Channel Class D Micro Amplifier, this model combines exceptional sound quality with a small form factor. It represents a significant advance in micro amplifier technology.


Compact Yet Powerful

The Rainbow SL-M4 challenges the norm by proving that compact amplifiers can deliver substantial power. Utilizing modern Class D technology, it offers efficient, high-fidelity sound. This amplifier is perfect for those seeking superior audio quality in limited spaces.


Technical Details

Choosing the Rainbow SL-M4 means accessing a range of features designed for optimal control:

  • RMS Power:
    • 4 x 75 Watts @ 4 Ohm Stereo
    • 4 x 95 Watts @ 2 Ohm Stereo
    • 2 x 180 Watts @ 4 Ohm Bridged
  • Input Sensitivity: 0.4V – 13V
  • Frequency Response: 5Hz – 25kHz
  • Signal to Noise Ratio: >90dB
  • Total Harmonic Distortion: <0.2%
  • Dimensions: 150mm x 75mm x 43mm

Space-Efficient Design

The SL-M4’s small size (150mm x 75mm x 43mm) allows for flexible installation options without compromising sound quality.


Clear and Pure Sound

The SL-M4 ensures clarity with a Signal to Noise Ratio of over 90dB and a low Total Harmonic Distortion (<0.2%), delivering sound as intended by the artist.


Broad Frequency Handling

Capable of a wide frequency range from 5Hz to 25kHz, the SL-M4 can reproduce a full spectrum of sounds, from deep bass to high treble, for a rich audio experience.


Why Rainbow SL-M4?

The SL-M4 reflects Rainbow’s dedication to sound excellence and innovation. It offers superior technical capabilities in a small format, making it an excellent choice for both audiophiles and casual listeners. The SL-M4 is not just an amplifier, but a commitment to superior sound quality.

Enhance your listening experience with the Rainbow SL-M4 4-Channel Class D Micro Amplifier – a small unit with big potential, set to transform your listening experience.

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