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SR SERIES FRONT PANEL

1.  FRONT MOUNTING BRACKETS;

 used in conjunction with the rear brackets  to mount the amplifier in a 

rack system.

2 & 6. CHANNEL GAIN CONTROLS; 

these controls are used to adjust the gain of each channel, they 

determine how loud each channel will sound for a given input signal level. In Bridge mode CH1 potentiometer 
controls the gain on both channels and in Stereo or Parallel mode just on CH1. Gain control range is: 

-0 dB~0dB.  

The segmented surround of the controls are illuminated green in the presence of mains power.

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3 & 7.   SIGNAL INDICATOR; 

these indicators illuminate when there is signal activity on the associated 

channel, the sensitivity is around 0.35V.

4.  CLIP INDICATOR; 

the segmented surround of the controls are usually illuminated green, but when the level 

of signal on either channel is sufficient to clip the amplifier, the surround on that channel changes to RED. When the 
surround is RED, the amplifier has reached its maximum power output. The distortion is around 0.5%.

5.  PARALLEL INDICATOR; 

shows when the amplifier is in Parallel mode, i.e. acting as two separate amps with 

a common input.

8.  FRONT AIR INTAKE; 

the air flow for cooling on this amplifier flows from front to back. Make sure that there 

is an adequate air supply at the front of the amplifier and that the rear of the amplifier has room for the exhaust to 
escape.

9.  MAIN POWER SWITCH; 

switches the mains power ON and OFF.  When the power switch is turned ON, 

the  HH  logo,  gain  controls  and  the  protection  indicators  are  all  illuminated,  the  amplifier  will  now  selftest 
automatically for around 10 seconds.  The protection indicators will go out when the test has finished. 

10 & 11.  PROTECT INDICATORS; 

when these indicators are ON the amplifier is in protection mode, which 

includes output short circuit, overheating,  DC,  VHF constant non-music high frequency signal.

12.  ILLUMINATED HH LOGO; 

this badge is illuminated when the mains power switch is in the ON position.

SR SERIES FRONT PANEL DESCRIPTION

Summary of Contents for SCALAR SR Series

Page 1: ...PROFESSIONAL POWER AMPLIFIER WWW HHELECTRONICS COM...

Page 2: ...rucciones Importantes Para Su Seguridad Espa ol Important Safety Instructions Pt 2 Foreword Introduction SR Series Front Panel SR Series Rear Panel SR Series Setup Connections Block Diagram Specificat...

Page 3: ...apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 Never break off the ground pin Connect only to a power supply of the type marked on the un...

Page 4: ...nne l assaut ou si inutilis pendant de longues p riodes 14 Seul un technicien agr par le fabriquant est m me de r parer contr ler votre unit Celle ci doit tre contr l e si elle a subit des dommages de...

Page 5: ...technikern durchf hren Eine Wartung ist erforderlich wenn das Ger t in irgendeiner Art besch digt wurde etwa wenn das Netzkabel oder der Netzstecker besch digt wurden Fl ssigkeit oder Gegenst nde in d...

Page 6: ...g n objeto ha ca do dentro del aparato el aparato ha sido expuesto a la lluvia o la humedad no funciona de manera normal o ha sufrido una ca da 15 Nunca retire la patilla de Tierra Conecte el aparato...

Page 7: ...user of the presence of important operating and maintenance Servicing instructions in the literature accompanying the product Dieses Symbol soll den Anwender vor unsolierten gefahrlichen Spannungen i...

Page 8: ...s much as we enjoyed creating it By choosing HH you are joining a brand with heritage dating back to 1968 a brand that helped define the techniques and principles for sound reinforcement and backline...

Page 9: ...using the equipment in a rack consideration should also be given to cooling The air flow through the unit from front to back should not be obstructed or hindered in any way so adequate ventilation in...

Page 10: ...D When the surround is RED the amplifier has reached its maximum power output The distortion is around 0 5 5 PARALLEL INDICATOR shows when the amplifier is in Parallel mode i e acting as two separate...

Page 11: ...ration only the red binding posts are used and the associated speaker load is connected between the two red posts Which ever connections are used the parallel speaker load should be limited to a minim...

Page 12: ...either XLR or Jack 14 CHANNEL 1 LINK this socket is in parallel with CH1 Combi Skt and provides an output signal same as the input signal 15 CHANNEL 2 LINK this socket is in parallel with CH2 Combi S...

Page 13: ...connected to each channel set the mode switch to Stereo connect a speaker cabinet to each channel output and adjust the two gain controls usually set to full power and then control the output from the...

Page 14: ...put CH2 Combi Input CH1 Link XLR M CH2 Link XLR M Attenuator Attenuator Bridge Parallel Stereo Mode Switch Protection Circuit 26dB 32dB Sens Switch Channel 1 Preamp Channel 2 Preamp HI Pass Switch Out...

Page 15: ...20V s 20V s 20V s Damping Factor 8 Ohm Stereo 1 KHz sine 30 10 200 250 200 Dynamic Range 8 Ohm Stereo 5dB 80dB 80dB 80dB S N Ratio 20Hz 20KHz 5dB 90dB 85dB 85dB Crosstalk 8 Ohm Stereo 1 KHz sine 5dB 7...

Page 16: ...t to the speakers will be cut The output signal will return within 10 seconds after the removal of the short circuit 5 AC Local Power Protection if theAC power voltage drops too low 160V in the case o...

Page 17: ...1 2 3 Gnd Gnd Gnd 2 2 1 1 Balanced XLR 6 3mm Balanced Jack 6 3mm Unbalanced Jack Speakon TIP RING SLEEVE TIP SLEEVE HOT COLD GROUND HOT GROUND 1 POSITIVE 1 NEGATIVE 2 NOT USED 2 NOT USED 1 GROUND 2 PO...

Page 18: ...NOTES...

Page 19: ...NOTES...

Page 20: ......

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