Crown Audio I-Tech Series Setup, I-TechSeries Power Amplifiers, page, Bridge-MonoMode

I-Tech Series Power Amplifiers

2 Setup

2.3.5 Bridge-Mono Mode

Overview: Turn on the amp, enable Bridge-Mono mode using the LCD Control

Screen, turn off the amp, wire it, and turn it back on.

1.Be sure that no cables are connected to the amplifier. Turn on the front-panel power switch. The LCD Control Screen will light up (Figure 2.11).

2.Under the LCD Control Screen, press the Menu/Exit button. Press the Next

button until you see OUTPUT MODE on the screen.

3. Press an Encoder knob to select BRIDGE MONO. Press the knob again to confirm
your choice. Press Menu/Exit. Turn down both level controls (Encoders) until you
reach maximum attenuation.
4. IMPORTANT: Turn off the amplifier and unplug its power cord.
INPUTS: There are three ways to connect an input signal to the amplifier (Figure
2.12):	Figure 2.12 Bridge-Mono Wiring to Binding Posts
• Connect an analog signal source to the Channel-1 amplifier input.

• Connect an AES/EBU digital signal source to the Digital Input IN connector.

NOTE: Crown provides a reference of wiring pin assignments for commonly used connector types in the Crown Amplifier Application Guide available at www.crownaudio.com.

OUTPUTS: Use Class 2 output wiring. There are two ways to wire the amplifier output connectors for Bridge-Mono mode:

1) Wire the speaker across the red binding post of each channel (Figure 2.12). Do not use the black binding posts when operating in Bridge-Mono mode.

2) Wire the speaker only to the top Speakon connector as shown in Table 3 and Fig- ure 2.13.

Figure 2.11

The LCD Control Screen

NOTE: In Bridge-Mono mode, the Channel 1 Level control sets the level; the Channel 2 Level control is defeated.

Table 3

Top Speakon Wiring for Bridge-Mono

PIN	1+	2+
SPKR	+	–

Figure 2.13

Wiring a Speaker in Bridge-Mono Mode to the Top Speakon Connector

page 12 Operation Manual