XTi
2
.
5
Series Power Amplifier
XTi
2
.
5
系列功率放大器
12
Operation Manual
操作手册
LOW 1+/–
HIGH 2+/–
5. Wiring
(continued)
5
.
4
出厂预设
#
4
:
BRG SUBS
(桥接低音单元)
功放在
BRG SUBS
(桥接低音单元)模式下时,您可以桥接功放,以使用一个
8
或
4
欧姆的低音单元。
输入将自动合并,并启用一个
90
Hz
第
4
(
24
dB/octave
)低通滤波,输出模式为桥接单声道模式。
XTi
2
.
5
系列功放预先装载的预设允许用户作简单配置即可使用。
在开始之前,请确保:
1
.
使用
XLR
连接接口将音源连接到通道
1
和通道
2
。(当选择此预设时,功放输入将自动合并到一
起)
2
.
如图连接扬声器。
a.
如果使用接线柱输出接口,将扬声器的正极连接到通道
1
的正极,再将扬声器的负极连接
到通道
2
的正极。
b.
如果使用
Speakon
输出接口,将扬声器的正极连接到
1
+
,再将扬声器的负极连接到
2
+
。然后
只把此接口插入通道
1
输出接口。
根据如下步骤设置功放作
BRG SUBS
操作:
1
.
按下
Set/Enter
按键,“
Preset
”闪烁。
2
.
再次按下
Set/Enter
按键,进入功放预设清单。
3
.
按下
Next/Down
或
Prev/up
按键,直到屏幕显示”
BRG SUBS
”。
4
.
按下
Set/Enter
按键,确认选择。
5
.
显示屏显示“
BRG SUBS
”字样,同时
Y
图标和
BRG SUBS
图标点亮。
5.4 Factory Preset #4: BRG SUBS
Putting the amplifier in BRG SUBS (bridged subs) mode allows you to bridge the amplifier for use with a single
8
or
4
ohm
subwoofer. The inputs are automatically summed, a
90
Hz
4
th order (
24
dB/octave) LowPass filter is enabled, and the output
mode is put into bridge-mono mode. The XTi
2
.
5
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:
2.
Connect signal source to Channel 1 and Channel 2 using XLR connectors (the amplifier inputs will automatically be
summed together when selecting this preset).
3.
Connector the speaker as shown.
a.
If using the binding post outputs, connect the positive terminal of the speaker to the positive terminal of Channel
1
and the negative terminal of the speaker to the positive terminal of Channel
2
.
b.
If using a Speakon® connector, connect the positive terminal of the speaker to
1
+ and the negative terminal to
2
+. Plug the connector into the Channel
1
output only.
Follow these quick steps to configure the amplifier for BRG SUBS operation:
1.
Push the “Set/Enter” button and you will see the word “Preset” flashing.
2.
2. Push the “Set/Enter” button again to enter the list of presets in the amplifier.
3.
3. Push the “Next/Down” or “PREV/UP” button until the screen displays “BRG SUBS”.
4.
4. Push the “Set/Enter” button to confirm your selection.
5.
The display will now read “BRG SUBS” with the Y icon and XOV icon highlighted.
5
.
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