Bass Reflex Port; Network & Power Amplifiers - M-Audio AV 40 User Manual

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2 AV 40 User Guide

3. Bass Reflex Port

The hole in the rear panel is a bass reflex port. It is designed to discharge very low frequency
signals and enhance the overall bass response.
4. Enclosure
Along with the other components, the AV 40's enclosure plays an important role. In order to provide
more stable performance, we used a special medium-density fiberboard (MDF) and unique interior
reinforcement designed to absorb vibration and minimize distortion. Additionally, our innovative
speaker monitor cabinet includes carefully placed acoustic material that makes the AV 40 sound
much bigger than it is—resulting in a smooth, natural bass response.
5. Stereo Auxiliary Input and Headphone Output
For maximum flexibility, we have included a stereo "Aux" input which allows you to plug in a
secondary audio source (such as your portable music player) in addition to the main RCA and 1/4"
TRS inputs. The volume control works on all inputs simultaneously. Additionally, there is a stereo
headphone output next to the "Aux" jack that mutes the sound coming out of the speakers and
redirects it to your headphones.
6. Network & Power Amplifiers
The power amplifiers and crossover network, for the AV 40 are specially designed for this woofer
and tweeter. The network distributes low-, mid-, and high-frequency audio signals to the proper
components in order to minimize distortion and to achieve a balanced sound.