Gain – SP Controls SmartPanel User Manual

Page 44

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SmartPanel Configuration and Installation Guide

www.spcontrols.com

© 2002-8 SP Controls, Inc. 930 Linden Ave. So. San Francisco CA 94080

Example 6: Adjusting Equalization Settings

In this example, you configure the Preamplifier to boost the bass for input one and to cut the
treble for input three.

This example assumes you have purchased, installed and connected an Audio Follow Video
Preamplifier
to the Panel.

To configure the Panel and Preamplifier in this manner:
x

connect the Panel to the Preamplifier and your computer and run the Configuration Utility;

x

wait for current Panel settings to be retrieved;

x select

the

AFVP tab. It should appear as in Figure 17.

x

Make sure the Defeat EQ Settings box is not checked, and the equalization knobs are not
grayed out;

x click

the

right arrow beneath the leftmost knob in the BASS row until the knob rotates all the

way clockwise;

x click

the

left arrow beneath the third knob in the TREBLE row until the knob rotates all the

way counterclockwise;

x

download the new settings by clicking Download Settings.

The Preamplifier will now equalize inputs one and three in a clearly audible manner. Equalization
can be verified by performing an “A-B” test as follows:
x

provide consistent audio sources for inputs one and three,

x

select input one or three,

x check

the

Defeat EQ Settings checkbox, and

x

re-download the settings to the Panel.

As soon as the Panel successfully downloads and resets, you should hear the difference.
Uncheck the box and repeat to hear the equalized versions again.

Gain

Gain settings are configurable on a per channel basis. Knob order matches that of the input
mapping on the Projector Selection tab; input one leftmost.

Gain settings provide up to 10dB of boost for input devices that are (relatively) too soft.

Gain is primarily for use when mixing consumer and professional gear on the source side, or
consumer gear on the input side with professional gear on the output (amplifier) side. Gain is
useful in these cases since reference line level for professional and consumer equipment is
different.

The default gain setting of 0dB prevents the Preamplifier from boosting the signal at all (i.e., if the
input is a 1V sine wave, the output is a 1V sine wave).

Note: Increasing gain also increases the noise floor. Gain should only be used when absolutely

necessary.

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