MCM Electronics

3.5W Single Channel Audio Amplifier Module By Kemo Electronic (M031N) MCM Part #28-6400

4 stars 1 review
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3.5W Audio Amplifier Module

Ultra compact audio amplifier circuit is housed in a fully potted plastic enclosure and is great for a variety of hobby, service and prototype applications. Because it operates on a wide DC voltage range, it may easily be powered by batteries, automotive power, or an AC adapter.

Specifications Top

  • Accepts line level input (80mV)
  • Accepts signal from RCA line level and headphone outputs
  • Provides 3.5W RMS output into a 4ohm load
  • Requires 4.5 ~ 12VDC, 12VDC optimum (500mA)
  • Dimensions: 1.58" (W) x 1.58" (D) x 0.47" (H)
Typical Applications
  • DIY computer speakers
  • Powering monitor speakers on communications receivers
  • Kiosks and retail displays

See the rest of our Kemo amplifier modules.

Part Numbers
MCM Part #:28-6400
Kemo Electronic Part #:M031N
Package Specifications & Dimensions
Weight:0.75 lbs.
Warranty:90 days
Need to Return?
Length:5 in.
Width:4.5 in.
Height:1.75 in.
Shipping Information
Extra Shipping Charge:No
Drop Ship:No

Product Reviews Top

  • by Kernum

    on 1/20/2013

    Project studio/Musician

    Overall: 4 out of 5

    This is one very easy to set up amp. I used a 20k pot because that is what I had. it works fine. I put it to use driving an old 6x9 car speaker in a speaker box for that size speaker. I used a 470microfarad cap to block DC to the speaker but 1000mf would work fine I tried it. I ran the output from a mixer to that amp and it did fine with a mic, Then I tried an electric guitar to it. It works fine but does over drive easy. Then for the awsome discovery. I plugged the guitar straight into the 20k input pot and then cut the voltage from 12 volt to six volt with a current limiting resistor feeding a 1000mf cap and I got the most incredible blues and or rock distortion out of that car speaker which I put a mic in front of in the studio to record.. I actually sat there and played guitar for a couple hours listening to that car speaker and its distortion when it is starved for power. Very cool I ordered in two so I can make one for my brother.. Thanks for the fun. I am tempted to order in the 12 watt one to see if it will work for a small guitar amp to play on the tailgate of my blazer at the cabin running on the car battery. If I get one I will let you know.

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