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Telco channel, Telco in, Clf out – Allen&Heath XB-10 User Manual

Page 18: Telco input gain, Telco input selector, 100hz high pass filter, Telco channel eq, Allen & heath 18 xb-10 user guide, Hf hpf

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Allen & Heath 18

XB-10 User Guide

TELCO CHANNEL

-15

+15

HF

HPF

-1O

26

-5

5

10

20

0

GAIN

USB

TEL IN

12kHz

-15

+15

LF

80Hz

TELCO IN

The Telephone Communication channel input 1/4” (6.25mm) Jack socket . Wired as
Tip=Hot (+), Ring=cold (-), Sleeve=Chassis.

CLF OUT

Standard 1/4” (6.25mm) Jack socket for the Clean-Feed output from the Telephone

Communication channel.
Wired Tip=Hot (+), Ring=cold (-), Sleeve=Chassis. Impedance balanced. Nominal level =
0dBu. (See next page for more information about the cleanfeed output).

TELCO Input Gain

The Telephone Communication channel input gain control. Varies the gain applied to
the TELCO input channel from –10dB to +26dB.

TELCO Input Selector

With the switch in the up position, the channel input is from the TELCO IN jack for

use with a telephone hybrid system.
When the switch is depressed, the channel signal is routed from the USB connection

so that the TELCO channel can be used with a VOIP connection such as SKYPE.

100Hz High Pass filter

Similar to the mono input channel, a 12dB per octave 2-pole high pass filter used to
filter out any low frequency rumble or pops on the TELCO channel input.

TELCO Channel EQ

The TELCO Channel EQ is 2 band with corner frequencies of
12kHz for the HF and 80Hz for the LF.

1 0 . 0 0 H z

1 0 0 . 0 0

1 0 0 0 . 0 0

1 0 0 0 0 . 0 0

3 0 0 0 0 . 0 0

- 2 0 . 0 0

- 1 5 . 0 0

- 1 0 . 0 0

- 5 . 0 0

0 . 0 0

5 . 0 0

1 0 . 0 0

1 5 . 0 0

2 0 . 0 0

d B r