Gemini CX-1000 Operation Manual
Also see for CX-1000: Brochure & specs
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Contents | 
(6)14.GND SCREW: Use to reduce the induction of hum or noise byconnecting it to the ground screw of the corresponding instrument ofthe rack system.15.AC SOURCE SELECTOR: Slide this switch to select the AC source,120V or 230V.16.FUSE HOLDER: Where the power fuse is located.17.AC POWER CORD: Insert power cord here.USING THE GROUND LIFT SWITCH:Depending on your system configuration, sometimes applying the groundwill create a quieter signal path. Sometimes lifting the ground caneliminate ground loops and hum to create a quieter signal path.1. With the unit on, listen to the system in idle mode (no signal present) withthe ground applied (the GROUND LIFT SWITCH (18) in the left position).2. Then turn the power off before moving the GROUND LIFT SWITCH (18).Lift the ground by moving the GROUND LIFT SWITCH to the right, turnthe power back on and listen to determine which position will provide asignal free of background noise and hum. Keep the GROUND LIFTSWITCH in the ground position if the noise level remains the same ineither position.CAUTION: DO NOT TERMINATE THE AC GROUND ON THE UNIT IN ANY WAY. TERMINATION OFTHE AC GROUND CAN BE HAZARDOUS.CONNECTIONS AND OPERATION:Figure 3: Three Way Operation with 180 Hz and 6 kHz Crossover PointsFigure 4: Two Way Operation with 1 kHz Crossover PointFigure 5: Two Way Operation with 90 Hz Crossover PointSPECIFICATIONS:Input Impedance..............................................................................>47K OHMCrossover Frequency:LOW..........................................................................50, 90, 180, 360, 720 HzMID (HIGH PASS)............................................50, 90, 180, 360, 720 Hz, FLATMID (LOW PASS)..............................................1k, 2k, 4k, 6k, 8 kHz and FLATHIGH.................................................................................1k, 2k, 4k, 6k, 8 kHzFilter Slope..................................................................................12 dB/octaveTotal Harmonic Distortion.....................................................................<0.01%Frequency Response (summed).................................20HZ~20KHZ (±0.5dB)S/N Ratio..................................................................................................90dBPower Requirement..................................................110V/220V, 50HZ/60HZPower Consumption...................................................................................6WDimensions....................................19"w x 1.75"h x 8"d (483 x 45 x 203 mm)INTRODUCTION:Congratulations on purchasing a GEMINI CX-1000 Electronic Crossover.This state of the art 3-way active electronic crossover network includesthe latest features and is backed by a three year warranty. Prior to use,we recommend reading all of the instructions and mailing in the warranty card.The CX-1000 has four different frequency filter controls and was created toallow you the flexibility of installing a bi-amp, tri-amp or multi-amp system.PRECAUTIONS:Read all operating instructions before using this equipment. To reducethe risk of electrical shock, do not open the unit. There areNO USER REPLACEABLE PARTS INSIDE. Please contact the GeminiService Department or your authorized dealer to speak to a qualifiedservice technician. Be sure that all AC power is OFF while makingconnections. Cables should be low capacitance, shielded and of properlength. Make sure that all plugs and jacks are tight and properlyconnected. Always begin with the audio level faders/volume controlsset at minimum and the speaker volume control(s) set to OFF. Wait 8 to10 seconds prior to turning up the speaker volume to prevent thetransient “POP” that could result in speaker/crossover damage. Werecommend setting the power amplifiers’ volume controls to maximum(highest sensitivity) and then set the crossover’s volume controls to thenecessary level for proper operation of the complete system (startingfrom zero and going up). DO NOT EXPOSE THIS UNIT TO RAIN ORMOISTURE. DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ONANY CONTROLS OR SWITCHES.CONTROLS AND COMPONENTS(FRONT) - FIGURE 1:1. POWER ON/OFF SWITCH: Use to turn unit ON or OFF.2. POWER ON LED INDICATOR: Lights up when unit is on.3. LOW FREQUENCY CROSSOVER SWITCH: Use to select the crossoverfrequency point between low and mid-range at 50, 90, 180, 360, 720 Hz.4. MID FREQUENCY CROSSOVER HIGH-PASS FILTER SWITCH: Use toselect the low frequency crossover point of the high-pass filter of mid-range at 50, 90, 180, 360, 720 Hz or to set it FLAT.5. MID FREQUENCY CROSSOVER LOW-PASS FILTER SWITCH: Use toselect the high frequency crossover point of the low-pass filter of mid-range at 1k, 2k, 4k, 6k, 8 kHz or to set it FLAT.6. HIGH FREQUENCY CROSSOVER SWITCH: Use to select the crossoverfrequency point between high and mid-range at 1k, 2k, 4k, 6k, 8 kHz.7. LOW FREQUENCY LEVEL (VOLUME) CONTROL: Use to adjust theoutput level of low frequency output.8. MID FREQUENCY LEVEL (VOLUME) CONTROL: Use to adjust theoutput level of mid frequency output.9. HIGH FREQUENCY LEVEL (VOLUME) CONTROL: Use to adjust theoutput level of high frequency output.CONTROLS AND COMPONENTS(REAR) - FIGURE 2:10.INPUT CONNECTOR (left and right): Use the RCA jacks to connect tothe PRE-AMP output.11.HIGH FREQUENCY OUTPUT CONNECTOR (left and right): Use theRCA or XLR jacks to connect to the power amplifier for high frequencies.12.MID FREQUENCY OUTPUT CONNECTOR (left and right): Use theRCA or XLR jacks to connect to the power amplifier for mid frequencies.13.LOW FREQUENCY OUTPUT CONNECTOR (left and right): Use theRCA or XLR jacks to connect to the power amplifier for low frequencies.In the U.S.A., if you have any problems with this unit, call1-732-738-9003 for customer service. Do not return equipmentto your dealer. |
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