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11

 

Correct Speaker Polarity is Important 

Polarity refers to + and – connections. Speaker wires are coded with color, printing or a ridge on the insulation 
on one of the leads so you know which lead was connected to the + and – terminals at the other end.  This 
coding will help you keep the + and - polarity consistent for all channels.  If one speaker is wired with incorrect 
polarity it will significantly impair sound quality.  
 

Speaker Wire Length and Gauge (thickness) 

When selecting speaker wire, follow these guidelines: 

• Keep the length of your speaker wire as short as possible. 
• Use the thickest wire practical. For lengths greater than 50 feet, use speaker wire with an 

AWG (gauge) of 14 or lower. The smaller the AWG number, the thicker the wire. 

 
 
Turn On Options 

 

 

The setting of the rear panel Turn On Options switch determines how the amplifier turns on and off.  
Setting the Turn On Options switch to Audio or 12

 

V disables the JC 5’s front panel Power button.  

There are three positions for this switch: 
 
 
 
 

Manual:

 

When the Turn On Options switch is set to 

Manual

 the JC 5 is 

turned on and off manually only by pressing the Power button on its 
front panel every time you want to listen to music.  

 

Audio:

 

When the Turn On Options switch is set to the 

Audio

 position, 

the JC 5 will be turned on automatically when an audio signal is 
present at the L or R Input jacks.  After the audio signal ceases the 
amplifier will remain on for about 10 minutes before shutting itself off.  
This prevents unintended turn-off during pauses in your music... 

 

12

 

V Trigger:

 

When the Turn On Options switch is set to its 

12

 

V

 

position, the JC 5 is turned on and off only with an ex9 V to  

    

+12

 

V DC voltage.  When the external voltage ceases the amp will  

     turn off within a few seconds. The 12

 

V turn on trigger circuit in the  

     JC 5 requires a mere 5mA from the 12

 

V trigger source. 

 
 
 
 
 
 

Turn On Threshold 

This knob sets the audio signal level required for the JC 5 to automatically turn on when the Turn On Options 
switch is set to the Audio position.  Fully counter-clockwise is the most sensitive setting and therefore is 
labeled “Quieter.”  Fully clockwise requires a higher audio signal voltage and is therefore labeled “Louder.”  In 
most systems the best results will be with the Turn On Threshold knob set at or towards the Quieter position.  
In some systems the JC 5 might turn itself on if there is a transient noise in the AC power line, even when an 
audio signal is not present. Similarly, the JC 5 might never shut off even after waiting more than 10 minutes.  
In this case, try rotating the knob towards the Louder position.   

 

 

Содержание Halo JC 5

Страница 1: ...JC 5 Stereo Power Amplifier OWNER S GUIDE...

Страница 2: ...This plug will only fit into a grounding power outlet If you are unable to insert the plug into the outlet contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of...

Страница 3: ...wing 6 Rear Panel Drawing 7 Rack Mounting 8 Audio Connections 9 Bridged Mode 9 Bi Amping 10 Turn On Options 11 Front Panel Operation 12 Technically Speaking 13 Design Overview 14 Problems and Remedies...

Страница 4: ...n Parasound JC 5 Amplifier Serial ______________ 5 digit number below the bar code Parasound Dealer ___________________________________________________ Parasound Dealer Phone Number __________________...

Страница 5: ...ipment cabinet or compartment Pockets of stagnant hot air can build up even in a cabinet with an open front and back A ventilation fan is recommended to prevent hot spots in confined spaces AC Mains V...

Страница 6: ...6...

Страница 7: ...7...

Страница 8: ...and reinsert the screws Make sure the screws are tight because they will support the entire weight of the JC 5 in the equipment rack Note Tighten each bolt just enough to keep the unit secure in the r...

Страница 9: ...oise ratio for each type of input You should not connect both the Balanced and Unbalanced jacks at the same time with the expectation of switching between two different devices such as a preamp and su...

Страница 10: ...t the same way to the right channel speaker s LF and HF inputs When bi amping both JC 5 s Bridged switches must be set to their Normal Stereo position Setting up the input wires for Bi amping The JC 5...

Страница 11: ...en the Turn On Options switch is set to the Audio position the JC 5 will be turned on automatically when an audio signal is present at the L or R Input jacks After the audio signal ceases the amplifie...

Страница 12: ...When the JC 5 is turned on the dim blue glow around the On Off button will become brighter and the two blue channel indicators will illuminate Push the button again to turn off the JC 5 The front pan...

Страница 13: ...tive 1 Volt or 2 Volts total External hum and noise that somehow gets into a balanced line is common to both its positive and negative conductors with respect to ground Therefore it is canceled or rej...

Страница 14: ...ormance in their specific roles in the circuit Gold has the best conductivity of any metal so we use high quality gold plated input connectors and speaker terminals The double sided circuit boards are...

Страница 15: ...near which reduces distortion and improves sonic accuracy The Input Stage The JC 5 s input stage uses matched pairs of discrete JFETs arranged in a differential configuration JFETs are ideal for the i...

Страница 16: ...ng the need for coupling and blocking capacitors The JC 5 is direct DC coupled from its input jacks to its speaker terminals This advanced circuitry never needs adjustment or maintenance It operates o...

Страница 17: ...lation around the JC 5 Check speakers for faults Background Hum or Hiss If you have cable or satellite TV try disconnecting the incoming TV or satellite cable if the hum is eliminated you will need a...

Страница 18: ...hout the Parasound assigned RA number marked on the carton 2 Unit was sent in an unsuitable shipping carton and packing inserts and was likely to have been damaged in transit 3 Unit has inadequate pac...

Страница 19: ...19 Chassis Illustration and Dimensions...

Страница 20: ...ower Output Stereo Mode 400 watts x 2 8 both channels driven 600 watts x 2 4 both channels driven Power Output Bridged Mode 1200 watts x 1 8 Bridged 4 operation is not recommended Power measurement pa...

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