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Table of Contents 

Page

Features ................................................................................. 1
Connect .................................................................................. 2
Cable Lock ............................................................................. 3
Volume Control ....................................................................... 3
Using the HA15 ...................................................................... 4
About the Focus Control ......................................................4-5
Warranty .................................................................Back Cover

Thank  you  for  purchasing  the  Hafler  HA15  headphone 

amplifier.  The  HA15  was  designed  and  produced  with  the 

same care and attention that has made Hafler one of the most 

respected brands of all times. 

Although you will find the Hafler HA15 to be extremely easy to 

use, we invite you to take a few minutes to read the manual  

and  familiarize  yourself  with  the  features,  functionality  and 

safety  concerns.  This  will  not  only  improve  your  listening 

enjoyment, but ensure you do not damage your hearing due 

to improper use. 

Now get set to enjoy your favorite music with greater detail and 

more excitement than ever before. 

HA15 HeAdPHone AmP

USeR GUIde

Headphone Safety Warning

Caution: Very Loud Amplifier

As with all products capable of producing high Sound Pressure 

Levels (SPL) users must be very careful to avoid the hearing 

damage  that  may  occur  from  prolonged  exposure.  This  is 

particularly  important  as  it  applies  to  headphones.  Prolonged 

listening  at  high  SPLs  will  eventually  cause  tinnitus  and  can 

lead to partial or complete loss of hearing. Please be aware of 

the recommended exposure limits within your legal jurisdiction 

and  follow  them  very  closely.  The  user  agrees  that  Hafler 

remains harmless from any health effects resulting from the use 

of this product and the user clearly understands that he or she is 

entirely responsible for the safe and proper use of this product. 

Please consult the Hafler Limited Warranty for further details.   

Summary of Contents for HA15

Page 1: ...HA15 U s e r G u i d e Solid State Headphone Amp Hafler is a division of Radial Engineering Ltd 1588 Kebet Way Port Coquitlam BC Canada V3C 5M5 604 942 1001 info hafler com www hafler com ...

Page 2: ...music with greater detail and more excitement than ever before HA15 headphone amp USER GUIDE Headphone Safety Warning Caution Very Loud Amplifier As with all products capable of producing high Sound Pressure Levels SPL users must be very careful to avoid the hearing damage that may occur from prolonged exposure This is particularly important as it applies to headphones Prolonged listening at high ...

Page 3: ...outputs for headphones works with headphones ranging from 8Ω to 400Ω 6 Cable clamp Secures the power supply cable 7 15 VDC Connection for external power supply included 8 Output THRU Sends audio to another device 9 Input RCA Unbalanced inputs to connect from source 10 Bal Unb Selects either XLR balanced or RCA unbalanced inputs 11 Input XLR F Balanced inputs for professional use 12 Rubber Feet Sur...

Page 4: ...egrated into professional recording systems using balanced XLR cables We recommend keeping unbalanced cables short under 2 meters 6 if possible in order to reduce susceptibility to noise Balanced cables can be run much longer distances due to the noise cancelling benefits of the twisted pair cable design When connecting your HA15 to a hi fi system common audio sources include 10dB monitor or auxil...

Page 5: ...ate the music source Slowly increase the volume on the HA15 until you have reached a comfortable listening level IMPORTANT NOTE As the HA15 is designed to work with all types of headphones or varying impedances It incorporates a powerful amplifier that is capable of damaging your hearing if you are exposed to loud music for an extended period of time As we have no control over the impedance of the...

Page 6: ...eature that will enthrall as it brings a greater sense of presence to your musical listening pleasure It is designed to simulate the effect of listening to music in a typical room using loudspeakers To understand the significance one merely has to think about how the music was recorded and how this differs from headphones In the studio music is recorded using a combination of nearfield monitors an...

Page 7: ...trol fully counter clockwise Depress the Focus switch to turn it on You will likely hear an increase in level This is normal as you are now multiplying the signals together in the matrix Simply back down the HA15 volume control to compensate Slowly turn the Focus clockwise until you find the sweet spot Try turning off the Focus effect to compare Listen carefully and you will notice that the stereo...

Page 8: ...the risk of loss or damage A copy of the original invoice showing date of purchase and the dealer name must accompany any request for work to be performed under this limited and transferable warranty This warranty shall not apply if the product has been damaged due to abuse misuse misapplication accident or as a result of service or modification by any other than an authorized Hafler repair center...

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