Bookmaking

One High-Power Output

An additional single high-power output is provided which can be used as a fifth conventional zone or it may drive a 100-volt line transformer. This output is rated at 40 watts into 4 ohms.

Induction Loop Driver

To comply with the Disabled Discrimination Act every LBO should provide an induction loop to enable users of hearing aids to hear the in-shop commentary.

To eliminate the need to buy a separate induction loop amplifier, the MRG AVS500 provides an output specifically to drive a typical LBO induction loop.

The pre-amplifier in the AVS500 allows the loop to be set up with suitable metal compensation and the DRC facility can be used to ensure that a uniform sound level is achieved.

Four Input Channels

Four mono inputs are provided on phono connectors. The level of each input can be preset to minimise a change in volume when inputs are switched.

Backup Telephone Interface

Should the main sound source fail, the AVS500 contains a fully isolated and protected telephone interface, which can receive a backup sound channel usable until the main source is restored.

Two RJ11 connectors are used for the phone and the telephone line. As with the existing equipment, the shop manager would dial the backup source number and press a button on the amplifier to both hold the line and select the phone input. A front panel LED indicates when the phone has been selected.

Routing and Equalisation

Any input can be routed to any output. Bass and treble controls are available to improve the sound clarity should it be required in specific locations.

Level Control

Two sets of level controls are provided for the manager on the front panel with Up and Down buttons. One is a master volume control for all outputs, the other affecting only the counter zone. Dynamic Range Control is available which can be used to reduce the overall dynamic range – turning up the level when the incoming commentary is too quiet and turning the sound down if the input becomes too loud.