All You Need To Know About The Wireless Mixer Pre-Amplifier

Assume that the local corporate training facility in your area has announced it will conduct a few training sessions for professionals for career development. To conduct these sessions in a large hall in front of a large audience means proper sound systems are necessary. As such, the use of microphones is crucial, along with mixer pre-amplifiers which will be required to enhance their low-strength output signals to usable levels.

Further, it raises the mic level signal of the microphone to "line level", which results in the mic signal being effectively processed, recorded, and played back. In technical terms, line-level signals are known to be the highest level signals before amplification.

Microphone pre-amplifiers come in various shapes and sizes and are defined by specifications or features according to their unique design model.

Core Specifications

Tone Control - helps with audio frequencies by allowing the listener to adjust. It is also known as equalization controls (EQ). Ideally, a mixer with a three-band EQ would be bass, mid-range, and treble controls. Tone controls cannot change or correct the acoustics of a room even if they can influence an extensive band of frequencies. The MX-9200 model consists of bass ± 13 dB at 100 Hz, middle ±13 dB at 1 kHz, and treble ±13 dB at 10 kHz.

Phantom Power - is essential for every condenser microphone since it is responsible for the transmission of audio signal and voltage through the same audio cable to the microphone or other connected device concurrently.

How does it work?

A pre-amplifier takes the signals being transmitted from the microphone and make them much louder so that the machine recording the audio can use that signal for recording. The signal in a recording chain gets captured by a microphone. For example, if a person speaks into the microphone, the voice of the person makes the capsule (responsible for the conversion of sound waves into mic signals) in the microphone vibrate.

Thereafter, the capsule vibrates creating an electric signal which is very low and faint. The electrical signal goes out of the microphone and inro the cable of the microphone (which is usually an XLR cable). This cable is plugged into the pre-amplifier, which retrieves miniature signals from the microphone and, through voltage and electricity, amplifies the signal, thereby increasing the volume of the signal from anywhere between 40 to 60 decibels (dB). At this new optimized level, which is known as the "line level", the sound is coordinated from the microphone to the connected device such as a computer.

Things to consider before buying

The MX-9200 is designed as a wireless mixer pre-amplifier, like all mixers today that come with built-in preamps. However, this does not apply to external power amplifiers.

There are two output channels that can be controlled using an Android touchscreen device connected via Bluetooth, making it extremely convenient to operate even at a distance. Users may download a software application to activate the feature.

Shop at TOA Electronics for wireless mixer pre-amplifiers with excellent features and output power

Are you looking for ways to improve your sound system? TOA Electronics develops, manufactures and markets highly reliable audio amplifying products meeting all the necessary legal and regulatory requirements. Check out our wide selection of the best mixer preamps for your applications.