Pyramid Car Audio XPA-200 ユーザーズマニュアル

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Channel 1 and Channel 2  Power LED Display
Indicate the output signal level for each channel.
use  XLR/6.35 mm
combo jacks
EQ OR MIXER
CH 2
CH 1
STEREO SIGNAL SOURCE
INSTALLATION GUIDELINES
Input connections
These amplifiers accept a broad range of input sources
including Compact Disc (CD) players; DVD, Cassette, Reel-
to-Reel or other tape players; Radio Tuners; Equalizers; 
Signal Processors.
Connecting a CD or DVD or tape player or tuner
In a normal installation, one would use the RCA JACKS for 
connecting a CD player, DVD, tape player or tuner.
Connecting an equalizer or external signal processor
Connect the processor’s OUT to the amplifier’s INPUT 
connectors.
Connecting the GND (Ground) screw terminal
Connecting a mixer or preamplifier may cause excessive 
noise or hum in the amplifier output. To prevent this, 
connect one end of a low-capacitance shielded wire to the 
amplifier’s ground screw (on the rear panel). Then connect 
the other end of this wire to the ground terminal on the 
mixer or preamplifier enclosure.
PREAMP OR MIXER
LOW CAPACITANCE SHIELDED WIRE
GROUND
SCREW
Speaker connections
You can connect 4 Ohm, 8 Ohm or 16 Ohm speakers to 
Channel 1 and/or Channel 2 of the amplifier. If you connect 
two pairs of speakers, be sure to follow these guidelines:
• Speakers which are connected to the same channel are 
part of a pair, and must be of the same impedance.
• Speakers connected to different channels are NOT part 
of a pair, and can be of different impedances.
1.  Prepare the speaker wire by removing about 1 inch of 
insulation from the end of the speaker wire you intend to 
connect to the amplifier.  Then twist the exposed wire to 
secure all the wire strands.     
     NOTE:  Use 16-gauge speaker wire for lengths up to25 
     feet; 14-gauge wire for lengths over 25 feet. It is    
     recommended that you use the shortest length of wire 
     possible.
2.  Connect the speaker wires to the speaker's positive and 
negative terminals.     
     NOTE:  Most speaker terminals are either color-coded 
     or have a mark that indicates the terminal's polarity.  
     Usually positive terminals are red or have a plus symbol 
    (+), and negative terminals are black or have a minus   
     symbol (-).
3.  Connect the speaker wires to the amplifier's left and   
right speaker terminals according to the terminal color 
polarity.
Stereo or Mono Inputs
Your PYRAMID XPA amplifier can be operated in Stereo, 
Mono or Bridged mode, depending on the input source. If 
the input signal is mono, slide the Stereo/Mono/Bridged 
selector switch to MONO and the signal will be routed 
through both channels. If you wish to run the amplifier in 
bridged output mode, slide the switch to Bridged.
CD PLAYER, DVD , TAPE PLAYER
OR TUNER
use RCA jacks
-OR–
EQ OR MIXER
Please read this manual throughly before you attempt to set up and use the amplifier. It contains a 
range of installation suggestions as well as instructions to ensure safe usage. Installed properly, you 
can expect years of trouble-free service from this product.
1 Features and Controls, XPA-100.XPA-200.XPA-300
2 Installation Guidelines
2 Input Connections
2 Connecting a CD, DVD or tape player or tuner
2 Connecting an equalizer or signal processor
2 Stereo or Mono Inputs
2 Speaker connecitons
3 Bridged Mode Operation
3 Connecting to standard AC power
3 Mounting the amplifier
3 Turning the amplifier on
3 Using the power LED meter
3 Using the channel1 and channel2 output level controls
3 About the internal clip circuitry
3 Caring for your PYRAMID Amplifier
3 Resetting the circuit breaker
4 Specifications
Limited warranty
FEATURES AND CONTROLS
FRONT PANEL, XPA-100.XPA-200.XPA-300
Your New PYRAMID XPA series P.A. 
Amplifier gives you the power and 
versatility you need in a professional 
sound system.
The amplifier's wide frequency 
response makes it suitable for 
amplifying music or vocal program 
material. It can be used for live bands, 
office paging systems, public 
announcements, or a variety of other 
installations.
TABLE OF CONTENTS
PYRAMID XPA-100/XPA-200/XPA-300 Amplifier Owner’s Manual  – 2
1-PYRAMID XPA-100/XPA-200/XPA-300 Amplifier Owner’s Manual
Protection Circuit and Indicator
The indicator will be illuminated when 
the amplifier is powered on and at turn-
on delay status; the indicator will be 
turned off after internal outputs are 
connected. The indicator will also be 
illuminated when the amplifier has 
abnormal problems, such as overload 
or excessive heat.
Channel 1 and Channel 2 
Output Level Controls
Lets you adjust the sound levels 
for each channel.
Power On/Off
Fan Cooling
Cooling system is automatically activated 
whenever amplifier is turned on. This forced 
air cooling system rapidly exhausts interior
heat, reducing operating temperature and 
aiding performance.
REAR PANEL, XPA-100/XPA-200/XPA-300
Stereo/Mono Switch
Lets you select conventional
stereo operation with a 
stereo input signal or bridged
mono input mode.
Input Jacks
Let you connect a variety of audio 
input sources via the balanced 
(XLR/6.35mm phone jack 
combinations) or unbalanced (RCA) 
inputs.
SWITCH IN “STEREO” POSITION
STEREO OPERATION
CAUTION!  Do not use
balanced and unbalanced
inputs simultaneously!!