Input Connections - Adastra A22 User Manual

Input connections

The A22 has a 6.3mm microphone input and a media player (2) with several options for stereo
music playback, including the internal media player and 3 stereo AUX line inputs.
If a microphone is to be used for announcements, turn the MIC VOLUME control (4) down and
connect a wired microphone to the MICROPHONE jack input (3) on the front panel, using a
microphone lead terminated with a 6.3mm plug.
A smart phone, tablet or mp3 player can be connected to the AUX1 jack (3.5mm stereo) on
the front panel (7)
Likewise, other stereo audio sources, such as CD player, DAB+/FM tuner, TV or satellite
decoder may be connected via the AUX2 and AUX3 L+R RCA inputs on the rear panel (10, 11)
The 3 AUX inputs are all selected via the MODE button on the built-in media player section.
The other stereo input source options are mp3 playback from USB or microSD, FM tuner and
Bluetooth, which are all handled by the built-in media player.
For good reception of FM radio stations (if needed) in the media player, the A22 has an "F"
connector (12) on the rear panel which can be connected to an external FM antenna (aerial)
This is recommended if the FM tuner is to be used.
For mp3 playback, it is necessary to insert a USB flash drive into the USB port and/or a
microSD card into the microSD slot on the front panel. These inputs are described in more
detail in the Media Player section on the following pages.
The memory devices (USB or microSD) must be formatted to FAT32 and have standard mp3
audio files stored on them.
To link the audio output (music + microphone) of the A22 onto further equipment or as part
of a larger sound system, connect the LINE OUT (9) connectors (L+R RCA) to the left and
right line input of the additional equipment.
Once all the above connections are made, ensure that the power is switched off (1) and
connect the IEC power inlet (15) to the 230Vac mains supply, using the IEC lead provided.
953.422UK User Manual