Extron XPA U 1004 SB, XPA U 2002 SB Setup Guide
IMPORTANT:
IMPORTANT:
Go to www.extron.com for the
complete user guide, installation
instructions, and specifications.
XPA U 1004 SB and XPA U 2002 SB • Setup Guide
The Extron XPA U 1004 SB is a 4-channel power amplifier for use in low-impedance speaker systems or high-impedance line
distribution audio systems, while the XPA U 2002 SB is a 2-channel power amplifier with the same usage.
The XPA U 1004 SB and XPA U 2002 SB are 1U high, half rack width, and rack mountable. The amplifiers have mounting holes for 9”
and deeper rack shelves, and are plenum rated with an optional flex conduit adaptor. The units are convection cooled.
This guide provides instructions for an experienced installer to set up and operate both the XPA U 1004 SB and XPA U 2002 SB power
amplifiers. For full installation, configuration, and operation details, see the XPA U 1004 SB and XPA U 2002 SB User Guide available at
www.extron.com.
Installation Steps
Step 1 — Mounting
Turn off all of the equipment and disconnect it from the power source. Mount the amplifier as required; the unit can be securely
mounted in a variety of locations using optional Extron Mounting Brackets and accessories (see the Extron website for compatible
optional mounting accessories) or using the included 3-piece bracket system. The brackets do not come attached to the amplifier.
Below are two methods of rack mounting the amplifiers.
Rack Ear Mounting (Single Unit)
The XPA U 1004 SB and XPA U 2002 SB ship with a set of rack ears, allowing the amplifier to be installed in a full rack-width space.
Mount the amplifier with rack ears as follows:
1. If the amplifier has its flat bottom rubber feet installed, remove them.
2. Attach the rack ears to the sides with the four provided #6 machine screws (
1
).
3. Insert the amplifier into the rack and align the holes in the rack ears with the holes on the rack.
4. Secure the amplifier to the rack using the four provided 10-32 x 3/4” screws (
2
).
1
OVE
R
TEMP
e
1 2 3 4
LIMITER/PROTECT
SIGNAL
POWER AMP
LIFIERS
XPA U 1004 SERIES
2
O
VER
TEMP
e
1
2
3 4
LIMITER/PROTECT
SIGNAL
POWER AMPLIFIERS
XPA U 1004 SERIES
Figure 1. XPA U 1004 SB and XPA U 2002 SB Rack Ear Mounting
1
e
ES
RS
XPA U 1004 SB and XPA U 2002 SB • Setup Guide (Continued)
Bridge Plate Rack Mounting (Side-by-Side)
The XPA U 1004 SB and XPA U 2002 SB ship with a bridge plate connector to connect two amplifiers together and form a full rackwidth unit. Mount and connect two amplifiers as follows:
1. If the amplifier has its flat bottom rubber feet installed, remove them.
2. Position two amplifiers upside down and next to each other as shown below.
3. Use the bridge plate connector and the four provided #4 machine screws to connect the two units together (
4. Attach the two short rack ears to the units with the four provided #6 machine screws (
2
).
5. Insert the amplifier into the rack and align the holes in the rack ears with the holes on the rack.
6. Secure the amplifier to the rack using the four provided 10-32 x 3/4” screws (
Mounting
screws (4)
1
3
).
1
).
XPA U 1004 SERIES
FIERS
WER AMPLI
PO
SIGNAL
LIMITER/PROTECT
4
1 2 3
e
TEMP
OVER
XPA U 1004 SERIES
IERS
POWER AMPLIF
ROTECT
SIGNAL
MITER/P
I
L
4
2 3
1
2
e
TEMP
OVER
Figure 2. XPA U 1004 SB/XPA U 2002 SB Bridge Plate
Rack Mounting
Ventilation Recommendation
Excessive heat can decrease a power amplifier’s lifetime. An Over
Temp LED indicator on the front panel lights red when the maximum
recommended operating temperature of +122 °F (+50 °C) has been
surpassed.
To minimize the chances of overheating, the amplifier should be arranged
in a rack so that the evironment does not reach or surpass +122 °F (+50
°C). See the image to the right to see the most optimal way to arrange the
XPA U 1004 or XPA U 2002 SB. No more than four stacks of amplifiers
in a one-on-top-of-the-other arrangement should occur without an open
between the stacks.
The XPA U 1004 SB and XPA U 2002 SB can also be arranged directly
above or below a non-XPA Ultra device, but in any case, the environment
should still not reach or exceed +122 °F (+50 °C).
3
OVER
TEMP
e
1 2 3 4
LIMITER/PROTECT
SIGNAL
Vent Space
Vent Space
Vent Space
Vent Space
Vent Space
XPA U 1004 SERIES
POWER AMPLIFIERS
OVER
TEMP
e
1
2 3
4
LIMIT
ER/PROTECT
SIGNAL
POW
ER
A
MPLIFI
ER
S
XPA U
1004 SERI
ES
Vent Space
Vent Space
2
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