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
1Features and Controls,
2Installation Guidelines
2 Input Connections
2Connecting a CD, DVD or tape player or tuner
2Connecting an equalizer or signal processor
2Stereo or Mono Inputs
2Speaker connecitons
3Bridged Mode Operation
3Connecting to standard AC power
3Mounting the amplifier
3Turning the amplifier on
3Using the power LED meter
3Using the channel1 and channel2 output level controls
3About the internal clip circuitry
3Caring for your PYRAMID Amplifier
3Resetting the circuit breaker
4Specifications Limited warranty
INSTALLATION GUIDELINES
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
| PREAMP OR MIXER |
LOW CAPACITANCE SHIELDED WIRE | GROUND |
| SCREW |
Input connections
These amplifiers accept a broad range of input sources, including Compact Disc (CD) players; DVD, Cassette, Reel-
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.
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.
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
Channel 1 and Channel 2 Power LED Display
FEATURES AND CONTROLSIndicate the output signal level for each channel.
FRONT PANEL,
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Power On/Off |
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Channel 1 and Channel 2 | Protection Circuit and Indicator | ||||
Output Level Controls | |||||
Lets you adjust the sound levels | The indicator will be illuminated when | ||||
for each channel. | the amplifier is powered on and at turn- | ||||
Fan Cooling | on delay status; the indicator will be | ||||
turned off after internal outputs are | |||||
Cooling system is automatically activated | connected. The indicator will also be | ||||
whenever amplifier is turned on. This forced | illuminated when the amplifier has | ||||
air cooling system rapidly exhausts interior |
| abnormal problems, such as overload | |||
heat, reducing operating temperature and | or excessive heat. | ||||
aiding performance. |
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REAR PANEL, |
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Input Jacks | Stereo/Mono Switch |
Let you connect a variety of audio | Lets you select conventional |
input sources via the balanced | stereo operation with a |
(XLR/6.35mm phone jack | stereo input signal or bridged |
combinations) or unbalanced (RCA) | mono input mode. |
inputs. |
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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.
use RCA jacks | CD PLAYER, DVD , TAPE PLAYER | ||||
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Connecting an equalizer or external signal processor Connect the processor’s OUT to the amplifier’s INPUT connectors.
EQ OR MIXER
EQ OR MIXER
use XLR/6.35 mm combo jacks
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
2.Connect the speaker wires to the speaker's positive and negative terminals.
NOTE: Most speaker terminals are either
3.Connect the speaker wires to the amplifier's left and right speaker terminals according to the terminal color polarity.
STEREO OPERATION
SWITCH IN “STEREO” POSITION 
CH 2 |
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| CH 1 |
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STEREO SIGNAL SOURCE
CAUTION! Do not use balanced and unbalanced inputs simultaneously!!
PYRAMID |
