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40W Power Amplifier Module
|Output:||maximum 40W music power|
|Frequency response:||approx. 20-25,000 Hz|
|Dimensions:||approx. 61 x 35 x 23mm|
ReviewsWrite a Review
2 of 2 Reviews
Excellent for in-car amplifier. Works great off a car battery. Simple connectivity and clear instructions meant that my little project worked first time. Does make a fair amount of heat, especially if you have two side by side for stereo.
I used one of these to construct a PA amplifier inside the enclosure of a 10" loudspeaker, forming a completely self-contained portable PA amplifier. The performance of these modules depends almost entirely on the quality of their power supply. Even on a 12 v supply rail they can easily draw up to 4 amps, and any inadequacy in the power supply unit will show up as hum or strange noises and oscillations in the output. You will require a switch-mode PSU with at least a 5 amps capability. Additional filtering with large electrolytics and/or inductors will further reduce the background noise to near zero, at which point you have a true hi fi amplifier with very linear frequency response and low total harmonic distortion. It is a good idea to decouple the supply to the pre-amp using a 4.7K resistor and another 1,000 mfd capcitor. I would advise you to restrict the supply rail to 12 v and the speaker impedance to 8 ohms and think of it as a 30 w amplifier rather than running the module flat out and risking heating problems, sound distortion and component failures. Used in this way the module gives excellent results at very low cost.
QuestionsAsk a Question
7 of 7 Questions
can this be used on a guitar amp
Would this be suitable for powering a subwoofer from a 9V DC supply and does the amp have any volume controls or something similar. Thanks.
can two of these be bridged to increase output power?
Does this have a DC supply circuit on board?
I''m thinking of using this product in a car. Can it run reasonably well of 12v?
Is this mono or stereo?
Chris H said:
is the rated power RMS or peak ??
|Item code||Item name||Quantity||Price|
|N67AW||40W Power Amplifier Module||(1+)||£18.99|
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