Redback A 4915 Operating Manual

Redback® A 4915 2 Input Mixer with VOX/PTT Muting
Operating Manual
A 4915
2 Input Mixer With VOX/PTT Muting

2.0 OVERVIEW

The A 4915 is a compact 2 input mixer which will accept either a line level signal or balanced microphone signal for each
input. The output signal is suitable for feeding an amplifier with either a line level input or balanced microphone input.
Input one will VOX mute input 2.

INPUTS AND OUTPUTS

Line level inputs and outputs are via stereo RCA sockets. Balanced microphone input and outputs are via 3 pin XLR.

OPERATION

Any signal applied to input one, will VOX mute any signal applied to input 2 when the VOX DIP switch is enabled. This is
regardless of the type of signal i.e. line input signal feeding input 1 will VOX mute a mic input signal feeding input 2.
When the VOX DIP switch is not enabled, signals present at input 1 and 2 are mixed.

CONTROLS

Individual tamper proof controls are provided for input 1 volume, input 2 volume and VOX switch sensitivity.
24V DC out is provided via a 2 way euro block when the VOX operates.

PHANTOM POWER

12V DC phantom power is always available to the hot and cold pins of the XLR microphone inputs.

SWITCHED 24V OUTPUT

24VDC output is turned on when both the 24V out and VOX activation DIP switches are in the ON position and the VOX
circuitry has been activated.
Distributed by Altronic Distributors Pty. Ltd.
Phone: 1300 780 999 Fax: 1300 790 999 Internet: www.altronics.com.au
User manual revision number: 1.0 31/07/2023
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