AEQ
CAPITOL
Ultra-compact digital audio mixer
19
2.2. Audio engine description.
AEQ CAPITOL is an ultra-compact digital audio mixer for Radio and Television consisting in a
control surface and an associated audio engine, specially designed for ON AIR broadcast
control, highly adaptable to different operational situations. The following chapters will describe
AEQ CAPITOL audio engine.
The AEQ CAPITOL audio engine or core unit consists in a 2RU chassis (89mm or 3 1/2”
height), designed to be installed in standardizedd 19” (482mm) racks. As with the rest of AEQ
CAPITOL, the audio engine size has been minimized without leaving any feature out, its depth
being only 330mm.
AEQ CAPITOL audio engine does not have any fans or moving mechanical parts for cooling.
Therefore its operation is totally silent and can thus be installed inside radio studios. The unit
cooling relies on convection air flow. For this reason it is strongly recommended to leave some
space above and below the equipment. It also takes advantage of the good thermal conductivity
properties of the metal elements of the chassis to channel the residual heat to the front panel,
where it is dissipated.
Ease of installation and set up been a priority during the design of CAPITOL, so audio input and
output, control monitoring and auxiliary signals configurations of the mixing console are fixed
and defined from Factory:
•
4 balanced microphone / line level inputs.
•
12 line level balanced mono analog inputs.
•
4 AES/S/PDIF digital stereo inputs.
•
8 line level balanced mono analog outputs.
•
4 AES/S/PDIF digital stereo outputs.
•
2 stereo input/output USB computer connections.
•
Control and Studio headphone outputs.
•
Stereo unbalanced CUE output with line level.
•
Stereo balanced analog outputs with line level for control and Studio monitors.
In order to connect external cough-cuts, remote control external devices, ON AIR lights, etc,
AEQ CAPITOL features 8 general purpose digital inputs (GPI), 8 outputs (GPO) and another 4
relay-switched outputs. The system configuration and remote control is carried out through an
IP based Ethernet connection.
AEQ CAPITOL has an optional bi-directional MADI interface (optional and subject to a specific
user license) that can carry up to 64 digital inputs and outputs as well as two optional digital
telephone hybrids.
For ease of wiring and avoid errors in the installation process, audio and data cables with DB15
male connectors required to connect the console can be optionally supplied. In any event, it is
necessary to use shielded and balanced audio cables and that the connection to the DB
connectors are made by technically qualified personnel and properly verified before connecting
the equipment. Further, optional power supply and wiring for control and studio signalling and
GPIO can be supplied.
