Introduction; Front Panel Controls; Balance/ Left Level; Aux Inputs - BEL BCR-A1 OB User Manual

BEL DIGITAL AUDIO

Introduction

The BCR-A1 OB is a professional audio confidence monitor housed in a 1U
rack. The unit features four amplifiers, four speakers and an analogue line output.
will accept one pair of analogue inputs.
BCR-A1 OB

Front panel controls

Several controls and connectors are located on the front panel, Fig 1.1, from left to
right these are:

Balance/ Left level

In the stereo mode this control will adjust the balance between the left and right
speakers. In the two-channel mode this control will adjust the left speaker output level. The
mode can be selected by adjusting the links shown in Fig 1.3

Aux inputs

There are two RCA phono input connectors provided on the front panel for
convenient temporary monitoring. These inputs operate in parallel with the rear panel inputs.

Input level indicators

Two LED bar graph PPI displays indicate the current input level. The input level that
shows 0dB on these bar graphs can be internally selected to be +4dB or 0dB. Fig 1.3

Anti-phase indicator

A single LED will illuminate to indicate sustained anti-phase on the inputs.

Right level

This control adjusts the right speaker output level.

Headphone jack

A 6mm headphone jack is provided on the front panel. Inserting a jack plug will mute
the speakers.

Power on indicator

 2007 BEL Digital Audio Ltd.
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BCR-A1 OB
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