User Manual

• Using balanced XLR cables (not included) with 1/4” TRS adapt-

ers if necessary for your mixer, make all connections as shown.

• On your mixer and on innkeeper PBX, set all controls to nominal

levels, usually 12:00.

• On your mixer, set local microphone channel input gain for good

microphone level.

• On your mixer, set all output faders and the main mix control for

good recording level of the local audio.

• On your mixer, set the headphone level for comfortable listening.

• On your mixer, set the Caller channel input gain to line level, if

there is a selector switch. If there is no line level input and you

must connect the Caller to a Mic in, turn the input gain way down.

• On your mixer, set the Aux control for Caller channel only to mini-

mum (zero or ∞). Aux controls for all other channels should ini-

tially be set at 12:00. Set Aux Send Master for good overall level.

• Place a test call to a quiet location. Set the A-B-C switch on the

innkeeper PBX for best audio.

• On your mixer, set the Aux Send control so that while you are

speaking into the microphone the Send LEDs on the hybrid light

the -20 dB green LED consistently and flash the -9 dB green

LED. If you flash the -3 dB red LED, lower the level.

• On your mixer, set the Caller channel output level for good re-

cording level of the caller audio. If you need more control of this

level, on the mixer first adjust the caller channel input gain (if ap-

plicable), then adjust the Caller control on the innkeeper PBX.

Mix-Minus Setup

A mix-minus signal is an audio signal that contains a mix of your

local microphones plus any other audio, minus the Caller's own

voice. Sending the Caller’s audio back to the innkeeper PBX

through Send 1 will cause an echo, or feedback.

If your mixer does not have an Aux Send bus, you can achieve the

same results using Pan controls with the Left and Right outputs.

Simply pan all the microphones, etc. to the Left output and pan the

Caller to the Right output. Then connect only the Left output to the

innkeeper PBX Send 1. Or, you may use an external Mix-Minus

box that will create this signal for you.

Operation