Vortex Media VTX 1000 - Manual (Page 45)

S
YSTEM
L
AYOUT
The audio components for the room are 12 tabletop microphones, 1 Vortex EF2280, 1 Vortex EF2241, 1 video
codec, 1, 4-channel amplifier, 1 program audio source, 1 SoundStation VTX 1000, and 8 ceiling
loudspeakers. Microphones 1-8 will use Inputs 1-8 on the Vortex EF2280 and Microphones 9-12 will use
Inputs 1-4 on the Vortex EF2241. The video codec will use Input A / Output A of the Vortex EF2280. The
program source will use Inputs B and C of the Vortex EF2280. The Interface Module for the SoundStation
VTX 1000 will use Input B / Output B of the Vortex EF2241 and the subwoofer will use Output D of the
Vortex EF2241. The amplifier will use Outputs 1-4 of the Vortex EF2280. There will be 4 sound
reinforcement zones with 2 loudspeakers assigned to each zone.
We will assume that the microphones, program audio, and amplifier have balanced connections (.775 Vrms
professional nominal levels). The Interface Module, subwoofer, and video codec will have unbalanced
connections (typically .3 Vrms consumer nominal levels).
We will set the output to the subwoofer at -30 dB in order to protect the subwoofer from "bottoming out"
on high-amplitude transient sounds.
The telephone wall jack is connected to the L INE jack of the Vortex EF2241 so that narrowband telephone
calls can be controlled via an external control system. The P HONE jack of the Vortex EF2241 is connected to
the phone jack on the VTX Interface Module in order to facilitate wideband calls from the SoundStation VTX
1000.
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