User manual PYRAMID 703EX

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Manual abstract: user guide PYRAMID 703EX

Detailed instructions for use are in the User's Guide.

[. . . ] The indicator will also be illuminated when the amplifier has abnormal problems, such as overload or excessive heat. 8. Left and Right Output Level Controls Lets you adjust the sound levels for each channel. In the mono bridged mode (703EX/PA1800X), only the left gain control will adjust the output level. REAR PANEL - PA600X e q 3 9 REAR PANEL - PA800X / 703EX / PA1800X r e w q 9 t REAR PANEL - PA600X / PA800X / 703EX / PA1800X 9. Voltage Switch 0 The amplifier has selectable input voltage from 110V/60Hz which is the standard in USA and CANADA. You can also switch the input voltage to 220V/50Hz for EUROPEAN operation. Please make sure the switch is in the proper position before operating, otherwise severe damage will result not cover by the warranty. [. . . ] Please also replace the fuse with proper rating in this situation (see the SPECIFICATIONS for the fuse rating). 10. Switched AC Accessory Outlet (PA800X/703EX/PA1800X) There is supplied AC OUTLET (SWITCHED MAX. 400W) which allow the electrical hook up of other units. 11. Speaker Terminals Permits hook up of two stereo pair of speakers via the wire terminals. You can choose either Channel A , Channel B, or use both at the same time. Speaker impedance can range from 4 to 16 Ohms. 12. Fan Cooling (PA800X/703EX/PA1800X) 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. 13. Input Jacks Let you connect a variety of audio input sources via the balanced 6. 35mm phone jack or unbalanced RCA inputs. 14. Stereo/Mono Switch (703EX/PA1800X) Lets you select bridged mono input mode in combination with a mono signal source plugged into the LEFT input channel, or conventional stereo operation with a stereo input signal. 15. Mono Bridged Output (703EX/PA1800X) Connect the speaker's positive (+) to the amplifier's LEFT/RED (+) terminal and negative (-) to the amplifeir's RIGHT/RED (+) terminal. 4 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 shield 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. Stereo or Mono Inputs (703EX/PA1800X) The 703EX and PA1800X can be operated in Stereo or Mono mode, depending on the input source. If the input signal is mono, connect the source via the LEFT input only (also marked "MONO" on the back of amplifier). Then slide the STEREO/MONO selector switch to MONO and the signal will be routed through both channels. MONO SIGNAL SOURCE EQ OR MIXER STEREO/MONO SWITCH IN "MONO" POSITION LOW CAPACITANCE SHIELD WIRE Speaker connections GROUND SCREW Input connections These amplifiers accept a board range of input sources, including Compact Disc (CD) players; Cassette, Reelto-Reel or other tape players; Radio Tuners; Equalizers; Signal Processors. Connecting a CD or tape player, or tuner In a normal installation, one would use the RCA JACKS for connecting a CD player, tape player or tuner. You can connect 4 Ohm, 8 Ohm, or 16 Ohm speakers to Channel A and/or Channel B of the amplifier. Leave the meter range switch in the OUT position to maintain a 0 dB gain for the mater. When output power is not strong, leave the meter range switch in the IN position to allow a +20dB gain. STEREO/MONO SWITCH IN "MONO" POSITION BRIDGED SPEAKER HOOKUP Using the left and right Output Level controls Rotate output level gain clockwise to increase, or counterclockwise to decrease the output power. To get the best performance with the leaset sound distortion, always adjust the output level gain so the meter's level indication does not continuously exceed to the extreme right. CAUTION: It is possible to overdrive the amplifier by setting output level gain too high, which may cause damage or failure. Using headphones To listen privately, or to monitor sound sources, connect a pair of low impedance stereo headphones (not supplied) with 6. 35mm plug into the PHONES jack on the amplifier front panel. Follow these recommendations: Do not listen at extremely high volume levels. Always start with the volume control set to a LOW level BEFORE you put the headphones on. Then gradually increase the volume as necessary. About the internal clip circuitry Special clip circuitry incorporated into your 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. However, under excessive output conditions, the clip indicator lights remain on continuously, altering you that the special clip circuitry has become active. [. . . ] 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. However, under excessive output conditions, the clip indicator lights remain on continuously, altering 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. 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. [. . . ]

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