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IMPORTANT NOTE 

Thank you for choosing our Ecler 

HZA4-120F Flexi-power Amplifier

It  is 

VERY  IMPORTANT

  to  carefully  read  this  manual  and  to  fully  understand  its 

contents  before  any  connection  in  order  to  maximize  your  use  and  get  the  best 
performance from this equipment. 

To ensure optimal operation of this device, we strongly recommend that its maintenance 
be carried out by our authorised Technical Services. 

Ecler 

HZA4-120F 

comes with a 

3-year warranty

 

INTRODUCTION 

The  HZA4-120F  is  a  four-channel  power  amplifier  with  high  impedance  (100V  line) 
directly amplified outputs. 

4.1.  Main Features 

 

Internal structure with four separate mono amplifiers, for 4 different mono input 
signals. 

 

The 

FLEXIPOWER

  technology  can  be  used  to  link  2,  3  or  4  adjacent  channels, 

adding their individual power, while operating as a single amplifier channel with a 
total power equivalent to the sum of the channels. 

 

Independent volume adjustment (per channel) through front panel controls. 

 

Independent (per channel) 0-10 VDC remote volume control, via screw terminals 
on rear panel. 

 

SPM 100 Technology - Channel N

 for direct high impedance amplification (100V 

line) without output transformers, which has the following benefits compared to 
traditional 100V line amplification with transformers: 

o

 

Better frequency response in the low band of the audible spectrum (low 
frequencies or bass) because there is no degradation of this part of the 
spectrum usually due to the saturation of transformers core. 

o

 

Great efficiency. 

o

 

Reduced weight. 

 

Convection cooling, without fan, with the following benefits: 

o

 

No background noise. 

o

 

Increased reliability. 

 

Auto-standby

  function:  the  amplifier  automatically  switches  to  standby  mode 

(low  consumption  mode)  when  it  remains  approximately  two  minutes  without 
detecting any input signal, then immediately switches back to normal operating 
mode when an input signal is re-detected. 

 

Thermal protection. 

 

Overload protection. 

 

“Anticlip” system to pro

tect from saturation due to an excessively high signal level. 

Содержание HZA4-120F

Страница 1: ...50 0241 0105 HZA4 120F EN HZA4 120F AMPLIFIERS Flexi power Amplifier USER MANUAL ...

Страница 2: ...the FLEXIPOWER function 8 5 5 Internal switches for high pass filters 9 5 6 Remote control ports for attenuation 9 5 7 REMOTE CONTROL ports connection 9 OPERATION AND USAGE 10 6 1 Start up 10 6 2 Front panel LED indicators 10 6 3 Front panel volume controls 11 6 4 AUTO STBY ON OFF switch 11 CLEANING 11 CONTROL PANEL FUNCTIONS 12 8 1 Front Panel 12 8 2 Rear Panel 13 DIAGRAMS 14 9 1 Configuration Di...

Страница 3: ...e of important operating and maintenance servicing instructions in the literature accompanying the appliance WARNING If applicable The terminals marked 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 sho...

Страница 4: ...s or when unused for long periods of time 13 Refer all servicing to qualified personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 14 Disconnecting from mains When sw...

Страница 5: ...endent volume adjustment per channel through front panel controls Independent per channel 0 10 VDC remote volume control via screw terminals on rear panel SPM 100 Technology Channel N for direct high impedance amplification 100V line without output transformers which has the following benefits compared to traditional 100V line amplification with transformers o Better frequency response in the low ...

Страница 6: ...t upon these ones 5 2 Mains connection The HZA4 120F amplifiers are fed with alternate currents depending on the country of 110 120 220 240V 47 63Hz see characteristics in the back of the unit The amplifier should have an earth connection in good conditions earth resistance Rg 30 or less The environment must be dry and dustless Do not expose the unit to rain or water splashes and do not place liqu...

Страница 7: ... signal Pin COLD or inverted signal Pin GROUND Pin For unbalanced connection short circuit pin to pin TACK outputs 42 44 available for inputs 1 and 2 are parallel to the input and serve to re send the signal of these inputs INPUTS CH1 CH2 to other input channels amplifiers or sound systems The input impedance is 20K balanced with a nominal input sensitivity of 0dBV 1V This impedance makes possible...

Страница 8: ... on the front panel between the pair of channels will be lit o The audio content of the pair of channels becomes the sound source connected to the input of the channel with a lower number input 1 for channel pair 1 2 input 2 for channel pair 2 3 input 3 for channel pair 3 4 o The active front and remote volume control if used of the channel pair becomes that of the channel with a lower number cont...

Страница 9: ...f affected channels The maximum level of each amplification channel and therefore its output volume that can be reached by the remote attenuator is determined by the position of its front knob 21 22 23 24 5 7 REMOTE CONTROL ports connection The signal remote attenuation level for each input channel can be set by using 3 types of external devices connected to the rear panel REMOTE CONTROL ports a U...

Страница 10: ...s illuminate when the input signal exceeds 35dB Overload indicators OVL 3 8 13 18 illuminate when the channel reaches its maximum power capacity due to a too low load impedance CLIP indicators 4 9 14 19 illuminate when the speakers output signal is close to the actual clipping level The CLIP system takes into account possible fluctuations in the supply voltage if they exist always giving a real in...

Страница 11: ...settings from unsolicited tampering Once inserted you must use a flathead screwdriver or a similar tool to remove them 6 4 AUTO STBY ON OFF switch Switch 39 that enables disables the auto standby mode sleep or low consumption mode If this function is activated the amplifier will switch to standby after approximately two minutes without any input signal detected When an input signal is re detected ...

Страница 12: ... CH 2 9 Clip indication CLIP CH 2 10 Thermal protection indicator TH CH 2 11 Merge indicator MERGE 2 3 12 Signal presence SP CH 3 13 Overload indicator OVL CH 3 14 Clip indication CLIP CH 3 15 Thermal protection indicator TH CH 3 16 Merge indicator MERGE 3 4 17 Signal presence SP CH 4 18 Overload indicator OVL CH 4 19 Clip indication CLIP CH 4 20 Thermal protection indicator TH CH 4 21 Volume CH 1...

Страница 13: ...Screwable terminal for remote control CH 4 36 Screwable terminal for remote control CH 3 37 Screwable terminal for remote control CH 2 38 Screwable terminal for remote control CH 1 39 Standby mode selector AUTO STBY 40 Input terminals channel 4 CH 4 41 Input terminals channel 3 CH 3 42 Output terminals to other amplifiers STACK CH 2 43 Input terminals channel 2 CH 2 44 Output terminals to other am...

Страница 14: ...14 DIAGRAMS 9 1 Configuration Diagram 9 2 Block Diagram off on FACTORY ADJUST High Pass Filter ON ...

Страница 15: ...0 03 typ 0 2 max Signal Noise Ratio 100V 90dB Channel Crosstalk 1kHz 100V 90dB Inputs Sensitivity nom Impedance 0dBV 20kW Connectors Terminal Block Symmetrical Outputs Connectors Terminal Block Indicators Power Green ON Red Standby Signal Present Clip Overload Thermal 35dB Yes Yes Yes Remote control DC 0 10V 0 1A max No attenuation 0V Full attenuation 10V Connectors Terminal block Auto power Thres...

Страница 16: ...ght to make changes or improvements in the design or manufacturing that may affect these product specifications For technical queries contact your supplier distributor or complete the contact form on our website in Support Technical requests Motors 166 168 08038 Barcelona Spain 34 932238403 information ecler com www ecler com ...

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