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WIRING INFORMATION 

 

 
 

1. Standard wiring info 

 

 

 
 
 
 
   
 
 
 
 
 

 

 
 
 

 

 

2. Unbalanced Stereo Input 

 

If set to unbalanced stereo input then the A XLR input wiring becomes: 
 

1: Ground/ Earth 
2: A input 
3: B input 

 

 

 

 
 
 
 
 
 

1

2

3

XLR SOCKET (FEMALE)

TIP

RING

SLEEVE

STANDARD XLR AUDIO PINOUTS: 
 
1: Ground/ Earth 
2: INPHASE/ POSITIVE/ MIC + 
3: MATE/ NEGATIVE/ MIC - 

STANDARD HEADPHONE WIRING: 
 
TIP: A/ LEFT Ear 
RING: B/ RIGHT Ear 
SLEEVE: Common/ Earth 

Summary of Contents for GS-HA013

Page 1: ...GS HA013 BATTERY POWERED PORTABLE HEADPHONE AMPLIFIER PRODUCT DETAILS 6 BROOKS PLACE MAIDSTONE KENT ME14 1HE ENGLAND TEL 44 0 1622 753662 Visit our Website at www glensound co uk FAX 44 0 1622 762330 ...

Page 2: ...ubt please contact us for the latest product information If you need any help with the product then we can be contacted at Glensound Electronics Ltd 1 6 Brooks Place Maidstone Kent ME14 1HE United Kingdom Telephone 44 0 1622 753662 Fax 44 0 1622 762330 EMAIL ADDRESSES General enquires office glensound co uk Technical enquires techinfo glensound co uk Sales enquires sales glensound co uk ...

Page 3: ... have been despatched the Company will guarantee the goods against any defect developing after proper use providing such defects arise solely from faulty materials or workmanship and that the Customer shall return the goods to the Company s works or their local dealer All non wear parts are guaranteed for 2 years after despatch and any defect developing after proper use from faulty materials or wo...

Page 4: ... for business to business sales of WEEE in the UK our registration number is WEE JJ0074UR RoHS DIRECTIVE EC directive 2002 95 EC restricts the use of the hazardous substances listed below in electrical and electronic equipment This product conforms to the above directive and for this purposes the maximum concentration values of the restricted substances by weight in homogenous materials are Lead 0...

Page 5: ...6 B Routing Switch 9 7 6 35mm Headphone Jack 9 RIGHT SIDE PANEL CONTROLS 10 8 9 A B Course Gain Controls 10 10 Phase Reverse Switch 10 11 Input Select Switch 10 REAR PANEL CONTROLS 11 12 3 5mm Headphone Jack 11 13 6 35mm Headphone Jack 11 14 A STEREO Input 11 15 B Input 12 16 DC Inout 12 LEFT SIDE PANEL CONTROLS 13 17 Battery Compartment 13 18 Battery Compartment Catch 13 WIRING INFORMATION 14 1 S...

Page 6: ... provided on the rear and a switch on the side selects if the stereo headphone output should be derived from both of the these one for left ear and the other for the right or if just one input should accept an unbalanced stereo input Two coarse gain controls are provided to allow the headphone amplifier to accept a wide range of audio input levels and these gain controls are presets and adjusted b...

Page 7: ...Page 7 of 15 SIMPLIFIED BLOCK DIAGRAM ...

Page 8: ...either have a battery fitted or an external power supply connected 2 Power On LED When the unit is turned on and operational this bright blue Led will illuminate If this LED is flashing it indicates that the battery voltage is getting low and the battery will need replacing soon 1 Power On Switch 2 Power On LED 3 A Volume Control 4 A Routing Switch 5 B Volume Control 6 B Routing Switch 7 6 35mm He...

Page 9: ...the A headphone output is derived from 5 B Volume Control This rotary potentiometer adjusts the volume of the B input into the headphones Turning it fully clockwise provides maximum volume and turning it ant clockwise reduces the volume to the minimum possible This control has been designed to not to allow the volume to be completely turned off This is to prevent an operator completely turning off...

Page 10: ...this switch is irrelevant and this should be set to normal When the switch is in the PHASE REVERSE RIGHT EAR position the phase of the B audio input is reversed This is a requirement of some older style wiring of BBC headphones 11 Input Select Switch This switch alters the audio input source being sent to the stereo headphone amplifier It can either be two balanced mono audio sources from the rear...

Page 11: ...t It is wired in parallel with the rear panel 3 5mm and front panel headphone jack sockets 14 A STEREO Input This is an XLR audio input It operates in 2 modes depending upon the position of the input select switch on the right side panel It either accepts a standard balanced mono audio source and routes that source to the A side of the headphone amplifier 12 3 5mm Headphone Jack 13 6 35mm Headphon...

Page 12: ...lifier or if the input select switch on the side of the unit is set to UNBALANCED STEREO then its input is disconnected and not routed to the output 16 DC Inout This is a 2 5mm barrel connector for attaching external DC supplies to if the GS HA013 is to be powered by one instead of a battery If both an external supply and battery are in place then the unit will be powered by whichever is providing...

Page 13: ...tment This is the compartment that houses the PP3 9 Volt battery 18 Battery Compartment Catch Use this little indent to lift the battery compartment to enable it to slide outwards when changing the battery 17 Battery Compartment 18 Battery Compartment Catch ...

Page 14: ...balanced stereo input then the A XLR input wiring becomes 1 Ground Earth 2 A input 3 B input 1 2 3 XLR SOCKET FEMALE TIP RING SLEEVE STANDARD XLR AUDIO PINOUTS 1 Ground Earth 2 INPHASE POSITIVE MIC 3 MATE NEGATIVE MIC STANDARD HEADPHONE WIRING TIP A LEFT Ear RING B RIGHT Ear SLEEVE Common Earth ...

Page 15: ...u to 10dBu MAXIMUM HEADPHONE LEVELS WARNING HIGH SOUND LEVELS CAN BE HARMFUL TO YOUR HEARING 19dBu into 2K Ohms 18dBu into 600 Ohms 16dBu into 200 Ohms 2 x HEADPHONE CONNECTORS 6 35mm A B gauge Wired in Parallel 1 x HEADPHONE CONNECTOR 3 5mm Wired in Parallel with 6 35mm MISC POWER Internal 1 x PP3 9 volt battery External 12 to 20V 44mA 2 5 mm Jack inner positive BATTERY INDICATOR Steady blue LED ...

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