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Summary of Contents for Galaxy Audio Core X250
- Page 1 GALAXY AUDIO ® CORE X250 ® CORE XP250 OWNER’S MANUAL © 1999 Galaxy Audio, Inc.
- Page 2 Plug-in or unplug an external speaker while the power is on. Doing so may cause a temporary short which can result in damage to the amplifier section. Attempt to make any repairs to the CORE X250/XP250. DO . . .
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Page 3: Table Of Contents
TABLE OF CONTENTS TYPICAL SETUP ----------------------------------------------------------------------------------------------------- 2 CORE X250 FRONT PANEL -------------------------------------------------------------------------------------- 4 CORE XP250 FRONT PANEL ------------------------------------------------------------------------------------ 5 CORE X250/XP250 REAR PANEL ------------------------------------------------------------------------------ 6 SOUND REINFORCEMENT BASICS -------------------------------------------------------------------------- 7 Avoiding Feedback -------------------------------------------------------------------------------------------- 7 Monitor Placement --------------------------------------------------------------------------------------------- 7 Low Frequency Distortion ----------------------------------------------------------------------------------- 7 Maximizing Gain ------------------------------------------------------------------------------------------------ 8 Ohm’s Law -------------------------------------------------------------------------------------------------------- 9... -
Page 4: Typical Setup
CORE X250 ® TYPIC TYPIC AL SETUP AL SETUP TYPIC TYPIC TYPICAL SETUP AL SETUP AL SETUP 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... - Page 5 Explanations of controls and jacks are preceded by boxes. WIRELESS MIC 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.
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Page 6: Core X250 Front Panel
CORE X250 ® FRONT P FRONT P ANEL ANEL FRONT P FRONT P FRONT PANEL ANEL ANEL CHANNEL 1 MIC (XLR) INPUT LEVEL CONTROLS FOR CHANNELS 1, 2, 3 AND AUX RETURN SmartALIC (All Level Input Control) compensates for the... -
Page 7: Core Xp250 Front Panel
CORE XP250 ® FRONT P FRONT P FRONT PANEL FRONT P FRONT P ANEL ANEL ANEL ANEL LEVEL CONTROL POWER LIMIT LED AC INLET Indicates when the built-in ¼” INPUT POWER LED compression circuit is activated. XLR INPUT SPEAKER (¼”) OUTPUT By automatically reducing gain when clipping occurs the compres- sion circuit prevents distortion. -
Page 8: Core X250/Xp250 Rear Panel
Models X250 XR250 With Galaxy Audio’s Far Outlet personal power source, a lunchbox-sized rechargeable supply of 110 house- hold current, the CORE X250/XP250 can be used where no AC power is available. The FAR OUTLET is available from Galaxy Audio dealers. -
Page 9: Sound Reinforcement Basics
MONITOR PLACEMENT We recommend Galaxy Audio’s HOT SPOT Personal Monitor. Its controlled bandwidth (optimized for vocals) pro- vides superior intelligibility and gain before feedback. -
Page 10: Maximizing Gain
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 of the amplifier’s power may be available. With a 100 1000 watt amplifier, that’s only of a watt. -
Page 11: Ohm's Law
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 parallel (meaning the signal can travel into one jack and out of the oth- er). -
Page 12: Core X250 Specifications
CORE X250 ® SPECIFIC SPECIFIC TIONS TIONS SPECIFIC SPECIFICA SPECIFIC A TIONS TIONS TIONS Rated Power: 250 watts @ 4Ω, 150 watts @ 8Ω Output connections: SPEAKER: Two ¼” Frequency response: 40 Hz–20 kHz LINE: One ¼” AUX: One ¼”, two 8-pin I/O ports Signal-to-Noise Ratio: >95 dB... -
Page 13: Core Xp250 Specifications
CORE XP250 SPECIFIC SPECIFICA SPECIFIC A TIONS TIONS TIONS TIONS SPECIFIC SPECIFIC TIONS Rated Power: 250 watts @ 4Ω, 150 watts @ 8Ω Safeguards: Short circuit current limiting Frequency response: 40 Hz–20 kHz Short circuit foldback limiting Signal-to-Noise Ratio: >95 dB Thermal short circuit protection Dynamic load line cooling Total Harmonic Distortion: <0.06% @ 4Ω, <0.06% @ 8Ω... -
Page 14: Architect And Engineer Specifications
6. Damage to any GALAXY AUDIO product which has been altered, or on which the serial number has been effaced or removed. If your unit requires service, it must be returned, shipping charges prepaid to an authorized GALAXY AUDIO service center in the United States. (This warranty is not enforceable outside the U.S.) If you are not able to locate an authorized service center in your area, please call or write GALAXY AUDIO, 601 E. -
Page 15: Block Diagram
BLOCK DIA OCK DIA OCK DIAGR OCK DIA GRAM OCK DIA... - Page 16 G AL A XY A XY A XY A XY A XY AUDIO UDIO UDIO UDIO UDIO 601 E. Pawnee Wichita, KS 67211 316. 263.2852 FAX 316.263.0642 www.galaxyaudio.com 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.
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