Pyramid Technologies 719A User's Manual
Contents
1. the level of the front speakers Sliding the level downeards brings the level of the rear speakers up The middle position sets all speakers at equal maximum level B 2 SPEAKER SYSTEM The fader control slide should be adjusted to the end of position which provides the loudest sound for speakers being used EQUALIZER CONTROL By sliding the controls you can tailor the frequencies to booster or cut 12dB The 7 frequencies are 60 150 400 1K 2 4K 6K 15KHz 5 LED POWER INDICATORS The rows of LED s show the PRE AMPLIFIER output LEVEL independently both left and right channel measured at peak level INSTALLATION lt lt Mo 16 4X6MM MACHINE SCREW 4 es 4MM SPRING WASHER 8 4x12MM TAPPING SCREW 2 GRAPHIC EQUALIZER AMM PLAIN WASHER 2 ELECTRICAL CONNECTIONS The Graphic Equalizer is designed to accept either conventional low impedance audio signals or the higher guality high impedance signals generated by some of today s better AM FM radio and cassette players B IGNITION elle RED WIRE GND BLACK WIRE 12V OUT ORANGE WIRE En 1 FOR LOW IMP AUDIO T7 INPUT HI LEVEL EA a ia i S J FRONT OUTPUT REAR OUTPUT J OPTIONAL FOR 4cH 1 1 1 POWER AMPLIFIER 4 dis iesms 4 INPUT POWER AMPLIFIER f FRONT SPEAKER REAR SPEAKER CARE AND MAINTENANCE Your Pyramid Stereo 7 Band Keep the graphic equa Graphic E2. PYRAMID Gold Jeriay OWNER S MANUAL MODEL 719A BAND CONTROL STEREO GRAPHIC EQUALIZER PRE AMPLIFIER FEATURES FLOATING OR COMMON GROUND INPUT HIGH OR LOW IMPEDANCE INPUT HIGH IMPEDANCE OUTPUT RCA TYPE JACK COMPATIBLE WITH ALL SOURCES CONTROLS 1 FADER CONTROL 4 LED LEVEL DISPLAY 2 POWER ON OFF 5 EQUALIZER CONTROL 3 TONE DEFEAT SPECIFICATIONS Input Impedance 100 Ohm low 10K Ohm high Control Frequencies 60 150 400 1K 2 4K 6K 15KHz Control Range 0 000 e eee 12dB boost or cut Frequency Response 20 20KHz Signal to Nise es rea ecw Zeus Better than 85 dB A Wtd Input Sensitivity for 400mV Output 2 0 volts low impedance 200mV high impedance Power Requirement 11 16 volts negative GND Gi Ze sk ss nest an a ee 178W x 25H x 131D mm OPERATION 1 POWER SWITCH Pressing the POWER switch activates the equalizer The LED in the switch will remain light The twin LED meters will flash on indicating the system is opera tional 2 TONE DEFEAT SWITCH When the tone defeat switch is pushed to the ON position the equalizer controls are not being employed and the amplifier operation is essentially flat Depressing the tone defeat button again to OFF brings the equalizer into operation 3 FADER CONTROL A DUAL AMPLIFIER 4SPEAKER SYSTEM The fader control can be adjusted by sliding the control upwards bringing up
3. qualizer is an example of wey lizer away from dust and superior design and craftsmanship V de dirt which can cause The following suggestions will help you K LA premature wear of parts care for your equalizer booster so you Wire adria can enjoy it for years en q lizer with a damp cloth N occasionally to keep it Keep the graphic IN looking new Do not use equalizer dry If it does harsh chemicals clean get wet wipe it dry im ing solvents or strong mediately Liquids con detergents to clean the tain minerals that can graphic egualizer corrode electronic circuits gt Use and store the graphic equalizer only in normal temperature en vironments Tempera ture extremes can shorten the life of elec tronic devices and distort or melt plastic parts Handle the graphic equalizer gently and carefully Dropping it can damage the circuit boards and can cause it to work improperly www pyramidcaraudio com
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