Introduction:
The Clever Little Box ‘AVID3’ is a simple and highly compact, yet powerful Stereo
Amplifier, installed to provide sound reinforcement for voice and/or music
reinforcement in your classroom/boardroom.
A wide range of auxiliary audio visual devices (such as CD, DVD, MP3, laptop,
video, etc) can be plugged into the AVID3 Amplifier to provide sound reproduction
throughout the whole room, ensuring the whole class/audience hears the sound
source clearly.
Additional Features of the AVID3 Amplifier:
• Audio Signal Inputs:
There are two dierent ‘Line’ inputs on the front faceplate of the AVID3 Amplifier:
- 1 x 3.5mm Stereo Jack input (S1)
- 2 x Stereo Phono inputs (S2)
Both are standard connectors and linking cables from your audio device (CD, MP3, etc) are
commonly available.
Use the ON/OFF button to select which input source is to be broadcast, S1 or S2 is displayed on the
LCD display.
• ‘Hard-wired’ Audio Signal Input:
A third audio signal may have been ‘hard-wired’ (permanently connected) to the rear connections of
your AVID3 amplifier (for example, if a TV, DVD player or computer is a permanent fixture in the room).
This audio input is wired in parallel with the 3.5mm Jack input on the front of your AVID3 main unit.
Therefore, if the hard-wired source is playing at the same time as the plugged-in source, both signals
will give a ‘mixed’ output (i.e. will play at the same time, with a jumbled eect). This is easily rectified
by stopping, pausing or switching o one of the two media players.
• Hi/Lo Line Level Sensitivity Switch:
The level of the output signal from dierent media players (eg. CD, DVD, MP3, laptop, etc) may vary
quite significantly and, where the player’s output is only available from the headphone output
(marked ‘ ’), it will normally be quite low.
The AVID3, therefore, features a ‘Line Level Sensitivity Switch’ with Hi and Lo settings.
At full line level, the switch should be set to Hi.
A lower output signal (such as headphone) should be set to Lo which will increase the volume level
output from the AVID3.
NOTE: If the Switch is set to Lo when a full line level signal is run through the AVID3, the volume will be
too high, resulting in a distorted sound. Should this occur, the Sensitivity Switch should be
immediately set to Hi.
