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Galaxy Audio Core X250 Owner's Manual

Manual is about: Galaxy Audio Power amplifiers Owner's manual

Summary of Core X250

  • Page 1

    Galaxy audio ® 1999 galaxy audio, inc. Owner’s manual ® © c o re x 250 c o re xp 250

  • Page 2

    This symbol indicates that there are important operating and maintenance instructions in the literature accompanying this unit. This symbol indicates that a dangerous voltage constituting a risk of electric shock is present within this unit. Warning! To prevent the risk of fire or electric shock, do...

  • Page 3: Table of C

    Typical setup ----------------------------------------------------------------------------------------------------- 2 core x250 front panel -------------------------------------------------------------------------------------- 4 core xp250 front panel ------------------------------------------------...

  • Page 4: 250

    Virtually any combination of mics, instruments, or tape/cd players may be simultaneously plugged into the inputs for all channels with the exception of the ¼” and rca jacks for channel 4. Since channel 4’s ¼” and rca jacks are parallel, simultaneously using both will result in diminished sound quali...

  • Page 5

    3 ! Explanations of controls and jacks are preceded by boxes. A wireless mic b wireless mic receiver output to core x250 mic (xlr) input: channel 1, and/or 2, and/or 3 ! Mic in (+24vdc phantom power) connects a microphone or other device which uses an xlr plug. Use only balanced devices and cables. ...

  • Page 6: 250

    4 power ac inlet power led speaker (¼”) output line (¼”) output aux (¼”) output tone controls when all three controls are set to the 12 o’clock (detent) position, the output frequency response is flat. High +/- 12db peak/dip at 16 khz. Mid +/- 12db peak/dip at 2 khz, low +/- 15db peak/dip at 100 hz ...

  • Page 7: 250

    5 power ac inlet power led speaker (¼”) output limit led indicates when the built-in compression circuit is activated. By automatically reducing gain when clipping occurs the compres- sion circuit prevents distortion. The limit led remains lit about half the time when the amplifier is being driven t...

  • Page 8: 250/

    6 rear p rear p rear p rear p rear panel anel anel anel anel speaker (¼”) output fan i/o port models x250 xr250 all channel inputs, the main line output and the aux main output are available on two 8-pin 0.100" centerline connectors. Recommended mating plug: molex 22-50-3085 (molex22-41-5082 is also...

  • Page 9

    7 avoiding feedback feedback (the shriek sometimes emitted by sound systems) occurs when the microphone (or pickup) and speaker are po- sitioned too close together for a given level of volume. Once feedback occurs it will continue until either the volume is de- creased or the distance between the mi...

  • Page 10

    Maximizing gain figure 1.1 represents the worst possible case of gain limiting; the microphone is pointed directly at the speaker. Any in- crease in volume will instantly produce feedback. As little as 1 / 1000 of the amplifier’s power may be available. With a 100 watt amplifier, that’s only 1 / 10 ...

  • Page 11

    Ohm’s law and the core x250 the speaker output jacks on the front and back of the core x250 are designed to power the core pa10x or pa15x and one core (or other brand) 8 ohm satellite speaker or two hot spots. Most professional-type speakers (like the hot spot) have two jacks which are wired in para...

  • Page 12: 250

    10 rated power: 250 watts @ 4 Ω , 150 watts @ 8 Ω frequency response: 40 hz–20 khz signal-to-noise ratio: >95 db total harmonic distortion: Ω , Ω minimum recommended load impedance: 4 Ω equalization: three band center detent lo: ± 15 db peak/dip at 100 hz mid: ± 12 db peak/dip at 2 khz hi: ± 12 db p...

  • Page 13: 250

    11 rated power: 250 watts @ 4 Ω , 150 watts @ 8 Ω frequency response: 40 hz–20 khz signal-to-noise ratio: >95 db total harmonic distortion: Ω , Ω minimum recommended load impedance: 4 Ω input connections: one balanced xlr each one balanced ¼” output connections: speaker: two ¼” one 8-pin i/o port in...

  • Page 14

    The system shall be an amplifier/mixer capable of producing 250 continuous watts of power to a 4 ohm load, 155 watts of continuous power to an 8 ohm load. The mixer section (models x250 and xr250) shall include one balanced (differential) input using a ¼ -inch phone plug connector, a dual-summed rca...

  • Page 15

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  • Page 16

    10–99 distributed outside the united states and canada by e and e exports, inc. 17922 sky park circle, suite p, irvine, ca 92714 949.440.0760 fax 949.440.0766 distributed in canada by a.C. Simmonds & sons limited 580 granite court, pickering, ontario, canada l1w 3z4 905.839.8041 fax 905.839.2667 601...