Operation Manual; Ensure Proper Cooling; Get Started- Page 6

XTi2 Series 

Power Amplifiers

Operation Manual

page 6

Factory Preset #5: SUBSYNTH

Putting the amplifier in 

SUBSYNTH

 mode allows you to turn on the 

SubHarmonic Synth feature for use with a subwoofer on both channels.  The 
inputs are automatically summed, a 90Hz 4th order (24dB/octave) filter is 
enabled on both Channel 1 and Channel 2, and the SubHarmonic Synth feature 
is turned on at +12dB level. The XTi2 Series amplifiers come pre-loaded with a 
preset that makes it easy to configure the amplifier for this operation.

Before you get started ensure that you:

 1.

Connect signal source to Channel 1 and Channel 2 using XLR connectors 

(the amplifier inputs will automatically be summed together when 
selecting this preset).

 2.

Connector the speaker as shown.

a.

Connect a speaker to each channel output using Speakon©, Banana 
Plugs, or bare wire

Follow these quick steps to configure the amplifier for 

SUBSYNTH

 operation:

 1.

Push the “Set/Enter” button and you will see the word “Preset” flashing.

 2.

Push the “Set/Enter” button again to enter the list of presets in the amplifier.

 3.

Push the “Next/Down”  or “PREV/UP” button until the screen displays “SUBSYNTH”.

 4.

Push the “Set/Enter” button to confirm your selection.

 5.

The display will now read “SUBSYNTH” with the Y icon and XOV icon highlighted.

Ensure Proper Cooling

When using an equipment rack, mount units directly on top of each other. Close any 
open spaces in rack with blank panels. DO NOT block front or rear air vents. The side 
walls of the rack should be a minimum of two inches (5.1 cm) away from the amplifier 
sides, and the back of the rack should be open.

Get Started

Get Started

CAUTION: Before you begin installing your amplifier, make sure 
it is disconnected from the power source, with the power switch 
in the “off” position and all level controls turned completely 
down (counterclock wise).