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eHSA2-250 / eHSA2-500
eHSA4-250 / eHSA4-500

HIGH IMPEDANCE AMPLIFIERS

Multichanel amplifiers

USER MANUAL

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Summary of Contents for eHSA2-250

Page 1: ...eHSA2 250 eHSA2 500 eHSA4 250 eHSA4 500 HIGH IMPEDANCE AMPLIFIERS Multichanel amplifiers USER MANUAL ...

Page 2: ...ling 6 5 2 Mains connection 6 5 3 Input signal connections 6 5 4 High pass filter 7 5 5 Output connections 7 6 OPERATION AND USAGE 7 6 1 Start up 7 6 2 Input attenuators 7 6 3 Indicators 8 7 CLEANING 8 8 FUNCTION DIAGRAM 9 9 FUNCTION LIST 9 10 TECHNICAL CHARACTERISTICS 10 11 BLOCK DIAGRAM 11 11 1 eHSA2 250 11 11 2 eHSA2 500 12 11 3 eHSA4 250 13 11 4 eHSA4 500 14 ...

Page 3: ...rked with symbol of may be of sufficient magnitude to constitute a risk of electric shock The external wiring connected to the terminals requires installation by an instructed person or the use of ready made leads or cords WARNING To prevent fire or shock hazard do not expose this equipment to rain or moisture WARNING An apparatus with Class I construction shall be connected to a mains socket outl...

Page 4: ...ifier will be stopped but fully disconnecting the device from mains is done unplugging the power cord from the mains input socket For this reason it always shall remain readily operable 15 Equipment is connected to a socket outlet with earthing connection by means of a power cord 16 The marking information is located at the bottom of apparatus 17 The apparatus shall not be exposed to dripping or s...

Page 5: ...rs at an affordable price The models covered by this manual are eHSA2 250 2 x 250W RMS 100V eHSA2 500 2 x 500W RMS 100V eHSA4 250 4 x 250W RMS 100V eHSA4 500 4 x 500W RMS 100V Equipped with balanced inputs on Euroblock connectors Outputs also feature Euroblock connectors It has an electronic limitation system to avoid signal saturation and a thermal protection and DC OUT protection as well as a pr...

Page 6: ... could cause humming In order to protect the power amplifier from eventual power consumption overloads it is protected by a set of fuses Should a fuse blow it must be replaced immediately by one with identical rating If it blows again please contact our Technical Service Department NEVER REPLACE THE FUSE WITH ANOTHER ONE WITH A HIGHER VALUE CAUTION Fuse substitutions have to be performed by a qual...

Page 7: ... most important when the distances to cover are long ones 6 OPERATION AND USAGE 6 1 Start up The red PROT LEDs light up when you turn on the POWER switch A moment later all voltages have been stabilized and the amplifier is operating PROT indicators turn off In a complete audio installation it is important to power on the equipment according to the following sequence sound sources microphones musi...

Page 8: ...rs is just below the actual clipping This CLIP system takes into account possible variations in the supply voltage always giving a real indication CLIP indicators light up to the beat of low frequencies when working at high power levels it s normal as low frequencies are those with higher energy content You must take care that these indicators do not remain continuously lit SP Signal Presence indi...

Page 9: ...V 115V selector 7 Channel outputs Euroblock connectors 100V 8 High pass filter switch 9 Channel input attenuators 10 Channel input Euroblock connectors 11 Channel stack Euroblock connectors NOTE Listed functions are for two channel models for models with more than two channels the number of these functions matches the number of amplifier channels ...

Page 10: ...z 75Hz 75Hz 75Hz THD Noise 1kHz Full Power 0 05 0 05 0 05 0 05 S N N 20Hz 20kHz 80dB 80dB 80dB 80dB CMRR 55dB 55dB 55dB 55dB Channel crosstalk 1kHz 55dB 55dB 55dB 55dB Input Sensitivity Impedance 0dB 20kΩ 0dB 20kΩ 0dB 20kΩ 0dB 20kΩ Mains voltage See characteristics in the back of the unit Power consumption pink noise 1 8 power 125W 195W 210W 380W pink noise 1 3 power 270W 425W 450W 860W Idle 40W 4...

Page 11: ...11 11 BLOCK DIAGRAM 11 1 eHSA2 250 ...

Page 12: ...12 11 2 eHSA2 500 ...

Page 13: ...13 11 3 eHSA4 250 ...

Page 14: ...14 11 4 eHSA4 500 ...

Page 15: ...to production tolerances NEEC AUDIO BARCELONA S L reserves the right to make changes or improvements in the design or manufacturing that may affect these product specifications Motors 166 168 08038 Barcelona Spain 34 932238403 information ecler es www ecler com ...

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