INSTRUCTION MANUAL CXA240 Power Amplifier DC CXA240 - AMPLIFIER 24V OUTPUT DC POWER 115VAC/230VAC~ 60Hz/50Hz 115 ON OFF COM CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN 100V PUSH WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. RISK OF HAZARDOUS ENERGY! MAKE PROPER SPEAKER CONNECTION. SEE INSTRUCTIONS BEFORE USING! F E US FUSE PUSH E FUSE 70V IV/10K BAL. LEVEL ADJUST FUS 115VAC/230VAC~ 60Hz/50Hz COM LINE DC FUSE 6.
CAUTION AVIS RISK OF ELECTRIC SHOCK • DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL ATTENTION: POUR EVITER LES RISQUES DE CHOC ELECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN ENTRETIEN DE PIECES INTERIEURES PAR L'USAGER. CONFIER L'ENTRETIEN AU PERSONNEL QUALIFIE.
2. INTRODUCTION The CXA240 is designed for continuous duty in speech, music, paging and sound reinforcement applications in churches, schools, offices, arenas, hotel meeting rooms, convention centers, recreation facilities and other venues demanding high performance, flexible features, and rugged dependability. The CXA240 has a 240 watt power amplifier, with an internal output transformer. The outputs are screw terminals that accept bare wire or spade terminals.
3. FRONT PANEL FEATURES 1. LED INDICATORS PROT This LED is on when the amplifier is in protection mode. This can occur if the volume is too high for long periods, or if heavy loads, a speaker defect, or poor ventilation cause the amplifier to overheat. If this light comes on, turn down your input signal to avoid over-working the amplifier, and check your speakers and wiring for defects. Check that the amplifier is also receiving good ventilation. SIGNAL This LED is on when an input signal is present.
4. REAR PANEL FEATURES 9. DC POWER SWITCH If this switch is pressed in, the unit will automatically switch to external DC battery power whenever (or if-ever) your local AC power fails. You will need to connect an external 24-volt battery to the DC battery terminals (11). 4. COOLING FAN These vents should not be obstructed, or this may cause overheating. If the switch is out, the battery will not power up the unit. 5. VOLTAGE CONVERSION 10.
OUTPUT TERMINALS (12 and 13): CAUTION: To prevent the risk of electric shock, never touch the bare wires coming from the OUTPUT TERMINALS of the amplifier when it is switched on. When the connections have been made, insulate the 70 V and 100 V terminals of the amplifier using the protective cover supplied. This terminal block is normally covered by a protective cover. Remove the two screws and the cover while making or undoing connections.
DC 24V OUTPUT OFF 14 15 COM 4 COM 16 70V 100V INPUT LINE IV/10K BAL. PUSH LEVEL ADJUST WARNING PUSH TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. RISK OF HAZARDOUS ENERGY! MAKE PROPER SPEAKER CONNECTION. SEE INSTRUCTIONS BEFORE USING! MANUFACTURED IN CHINA © 2004 LOUD TECHNOLOGIES INC. "EAW" IS A REGISTERED TRADEMARK OF LOUD TECHNOLOGIES INC. 14. LEVEL ADJUSTMENT This control allows you to adjust the input signal level. 15.
5. THERMAL CONSIDERATIONS The power amplifier within the unit is fan cooled. Heat is drawn away from the amplifier heatsink by the fan and exhausted through the cooling vents in the top cover. When installing, be sure to allow sufficient air space around the top and rear of the amplifier to allow adequate cooling for the heatsink. Leave at least one rack space above and below, and at least 6 inches behind the chassis to allow proper ventilation.
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8. SPECIFICATIONS Performance Amplifier Power: Frequency Response: Distortion: Noise: 240 W, nominal, 330 W peak 50 Hz–18 kHz ± 3 dB < 1 % THD at 1 kHz nominal power >70 dB Audio Inputs Input Type: Input Sensitivity: Impedance: Input Level Adjustment: Two balanced/unbalanced combination 1/4-inch TRS/TS and XLR connectors Two unbalanced RCA inputs 1 V, (1.
9. SERVICE INFORMATION 10. EAW COMMERCIAL WARRANTY In the event that your CXA240 should require servicing, please follow these instructions: Warranty: LOUD Technologies Inc. requires its authorized EAW Commercial distributors to abide by the following warranty terms for all EAW Commercial brand products (all dates are from the date of delivery from an Authorized EAW Commercial Distributor to the end user/installation site): Loudspeakers – 5 years; Active Electronics – 5 years; Accessories – 2 years. 1.
EAW Commercial A LOUD Technologies Inc. Company EAW Commercial | One Main Street | Whitinsville, MA 01588 USA | TEL toll free within US/Canada 888.337.7404 TEL outside US 425.892.6503 | FAX 425.485.1152 | www.eawcommercial.com © 2004 LOUD Technologies Inc. All Rights Reserved.
