Small audio amplifier is a small and cheap device with enough power to provide adequate loudness to fill a room without making your room like a disco arena. It has been used widely in many electronic projects, so you can find small audio amplifier in several devices such as a radio transceiver, an intercom, and a digital voice recorder.
A small audio amplifier mentioned here refers to a device used to increase the power of a signal. It works by taking energy from a power supply and controlling the output to match the input signal shape but with larger amplitude. In this case, the function of small audio amplifier may be considered as modulating the output of the power supply. These are the examples of the device you can consider.
ELK High Performance Audio Amplifier
If you think that you need monster-sized amps for smaller audio applications, you will realize that you are wrong after knowing this small audio amplifier. With small size, it allows you to install it anywhere you want. Then, you can use this great little 10-watt audio amplifier for telephone paging, PA and alarm annunciation.
Moreover, this device is reliable to distribute home automation voice announcements throughout the home, or any other low power audio amplification application. Operating on 12-24 VDC or 12-24 VAC, this small audio amplifier can drive multiple speakers. It only requires 22-24-gauge wire connections, with the output of the amplifier short-circuit protected.
LM386 Audio Amplifier
This is a small audio amplifier which is designed for use in low voltage consumer applications. It is ideal for several applications such as power converters, small servo drivers, TV sound systems, portable tape player amplifiers, AM-FM radio amplifiers, intercoms, and small servo drivers.
The inputs of LM386 Small Audio Amplifier are ground referenced while the output automatically biases to one-half the supply voltage. It is ideal for battery operation because the quiescent power drain is only 24 milliwatts when operating from a 6 voltsupply.
Boostaroo Audio Amplifier
Another most recommended small audio amplifier is Boostaroo Audio Amplifier which is able to boost your audio signal with less than 1% harmonic distortion (according to the product literature). Requiring only 2 AA batteries, this device offers simple operation, in which you just need to simply plug the 12 –inch long card attached to the device into your audio source.
This small audio amplifier provides audio output which is significantly louder than before – up to a 100%. With this device, you can hook up nearly output device like earphone/headphones, small speakers, small microphone or line inputs, just like on a laptop. Specifically, you should switch the Boostaroo on using the gray switch to the left of the audio jacks before enjoying amplified signal.
The audio you will get from this small audio amplifier is strong and clear. Using this device is even considered as a nice way to solve the occasional need for a split signal or a boosted signal. You should get notified about the battery life as it is quicker in several uses, such as when you are using it for something like splitting the DVD audio for the kids in the back seat.
