User manual PYRAMID XPA200

Power Amplifier XPA-100 Amplifier XPA-200 Amplifier XPA-300 Amplifier www.pyramidcaraudio.com 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 1 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 4 Features and Controls, XPA-100.XPA-200.XPA-300 Installation Guidelines Input Connections Connecting a CD, DVD or tape player or tuner Connecting an equalizer or signal processor Stereo or Mono Inputs Speaker connecitons Bridged Mode Operation Connecting to standard AC power Mounting the amplifier Turning the amplifier on Using the power LED meter Using the channel1 and channel2 output level controls About the internal clip circuitry Caring for your PYRAMID Amplifier Resetting the circuit breaker Specifications 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 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 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. 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. LOW CAPACITANCE SHIELDED WIRE GROUND SCREW 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. Input connections These amplifiers accept a broad range of input sources, including Compact Disc (CD) players; DVD, Cassette, Reelto-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. FEATURES AND CONTROLS FRONT PANEL, XPA-100.XPA-200.XPA-300 Channel 1 and Channel 2 Power LED Display Indicate the output signal level for each channel. use RCA jacks CD PLAYER, DVD , TAPE PLAYER OR TUNER Power On/Off Channel 1 and Channel 2 Output Level Controls Lets you adjust the sound levels for each channel. 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 Protection Circuit and Indicator The indicator will be illuminated when the amplifier is powered on and at turnon 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. Connecting an equalizer or external signal processor Connect the processor's OUT to the amplifier's INPUT connectors. EQ OR MIXER STEREO OPERATION SWITCH IN "STEREO" POSITION -OR­ CH 2 CH 1 EQ OR MIXER STEREO SIGNAL SOURCE use XLR/6.35 mm combo jacks Input Jacks Let you connect a variety of audio input sources via the balanced (XLR/6.35mm phone jack combinations) or unbalanced (RCA) inputs. Stereo/Mono Switch Lets you select conventional stereo operation with a stereo input signal or bridged mono input mode. CAUTION! Do not use balanced and unbalanced inputs simultaneously!! 1-PYRAMID XPA-100/XPA-200/XPA-300 Amplifier Owner's Manual PYRAMID XPA-100/XPA-200/XPA-300 Amplifier Owner's Manual ­ 2 MONO OPERATION SWITCH IN "MONO" POSITION Connecting to standard AC power After making all other connections, set the POWER switch to OFF position. Then connect the power cord to a standard AC outlet. Mounting the amplifier This amplifier is designed to accept standard rack mounting installations. Two slots on each end of the front panel make it suitable for such an installation. CH 2 CH 1 Tightly secure four mounting screws (not supplied) through these fours slots and into your standard electronics equipment rack. Turning the amplifier on 1. Turn on the audio input source equipment which is connected to the amplifier INPUT jacks. MONO SIGNAL SOURCE USE CHANNEL 1 INPUT ONLY 2. Set the amplifier's Channel 1 and Channel 2 output level gain controls to the minimum level settings. 3. Push in the power switch to turn the amplifier on. Using the power LED meters The meter pointer position indicates the amplifier output power. For ease of reading in dark environments, the meter is illuminated. Using the Channel 1 and Channel 2 Output Level controls Rotate output level gain clockwise to increase, or counterclockwise to decrease the output power. To get the best performance with the least sound distortion, always adjust the output level gain so the meter's pointer does not continuously exceed the extreme right of the meter's scale. CAUTION: It is possible to overdrive the amplifier by setting output level gain too high, which may cause damage or failure. About the internal protect circuitry Special clip circuitry incorporated into your PYRAMID XPA amplifier's design protects the amplifier and speaker system from being damaged from overdriving power. Under normal conditions, the amplifier's clip indicator will flicker as the output power momentarily exceeds the level as set by the output level gain selector. Bridged Mode Operation This amplifier can operate in a mono bridged output mode, if your speakers can handle the following power output levels: XPA-100: XPA-200: XPA-300: 1000 watts 1600 watts 2000 watts CAUTION! Do not use balanced and unbalanced inputs simultaneously!! As shown in the diagram below, connect the speaker's positive (+) to the amplifier's red speakers left (1/2) terminals and negative (-) to red speakers right (1/2) terminals. The speaker right (+) on the amplifier is used as a negative (-) terminal for a bridged connection. NOTE: The extra amplifier output of 6.35mm phone jacks can not be used for the bridged connection. It can only be used in normal (non-bridged) operation as a stereo speaker output. MONO BRIDGED OPERATION SWITCH IN "BRIDGED" POSITION DO NOT USE BLACK TERMINALS However, under excessive output conditions, the protect indicator lights remain on continuously, alerting you that the special clip circuitry has become active. When this occurs, you should simply reduce the output power level by rotating the Master Volume control counterclockwise. USE CHANNEL 1 INPUT ONLY MONO SIGNAL SOURCE CAUTION! Do not use balanced and unbalanced inputs simultaneously!! 3-PYRAMID XPA-100/XPA-200/XPA-300 Amplifier Owner's Manual PYRAMID XPA-100/XPA-200/XPA-300 Amplifier Owner's Manual-4