HA15
User Guide
Solid State
Headphone Amp
Haer is a division of Radial Engineering Ltd.
1588 Kebet Way, Port Coquitlam
BC, Canada V3C 5M5
(604) 942-1001 info@haer.com
www.haer.com
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 Haer HA15 headphone
amplier. The HA15 was designed and produced with the
same care and attention that has made Haer one of the most
respected brands of all times.
Although you will nd the Haer 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 Amplier
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 Haer
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 Haer Limited Warranty for further details.
HA15 HEADPHONE AMP
Haer
1
FEATURES
1. FOCUS CONTROL: Variable focus control simulates a live listening
environment
2. FOCUS ON: Activates focus control
3. VOLUME CONTROL: Sets the headphone output level
4. POWER ON: Power switch activates the HA15
5. HEADPHONE OUTPUT: Two ¼" TRS 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: Surface saving feet to secure the HA15 in place
1
6
7
3
8 9 10 11
42
5
12
HA15 HEADPHONE AMP
Haer
2
CONNECT
The Haer HA15 has been designed to be extremely easy to use. Before
you get started, make sure your audio system is turned down – volume
levels set to zero or your system is turned off. This will prevent plug-in
and turn-on transients from damaging more sensitive components such
as tweeters.
The Haer HA15 is equipped with both RCA and XLR female inputs.
This allows traditional hi- setups to be done using unbalanced coaxial
RCA cables or it may be integrated 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 benets of the twisted pair cable design.
When connecting your HA15 to a hi- system, common audio sources
include -10dB monitor or auxiliary outputs from a receiver via standard
RCA outputs. For professional studio use, any +4dB balanced line level
source will work such as the main or monitor outputs from a console.
Make sure you maintain the left-right relationship to enjoy the stereo mix
as it was recorded.
PHONO
INPUT
OUTPUT
HA15 HEADPHONE AMP
Haer
3
USING THE CABLE LOCK
Connect the HA15 power supply. This has a handy cable lock to prevent
accidental disconnection. Simply release the lock using a hex screw wrench
and pass the power supply cable through the lock to secure it in place.
Turn on the HA15 by depressing the front panel power switch. The power
LED will illuminate to let you know the power supply is properly seated.
VOLUME CONTROL
Set the level control fully counter-clockwise (off). Plug in your headphones.
Turn on your audio system. Activate 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 amplier 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 headphone you are using, it is your
responsibility to ensure that listening levels are kept under
control and that you follow the health and safety guidelines in
your community. We do not recommend headphones be used
by children unless they are carefully monitored by a parent or
guardian. The use of ear-buds is not recommended.
HA15 HEADPHONE AMP
Haer
4
USING THE RCA THRU-PUTS
The HA15 is equipped with a pair of RCA thru-puts that can be used to
feed a secondary device such as another HA15 or the TAPE or AUX input
on your receiver. This thru-put adds exibility to your setup and will make it
easier to integrate the HA15 into your system.
You could for instance connect a CD player to the HA15 and then send
the output from the CD player (via the THRU) to your receiver. This would
enable you to turn off the receiver or hi- system for quiet listening without
having to re-patch.
Note that these are simple pass through connections. is means that the level or Focus
controls will have no eect on the signal.
THE FOCUS CONTROL
The Focus control is a very powerful feature 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 signicance, 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 neareld monitors
and larger playback monitors during the nal mix and mastering.
Headphones are secondary. This means that when the engineer or
producer was placing instruments and voice across the sound-eld, they
were actually making ‘mix decisions’ while listening to the recording as it
emanated from both loudspeakers at the same time. With headphones, the
sound going to each ear is completely isolated from the other. This results
in a ‘wider than recorded’ stereo eld which is not natural. The intended mix
is lost and so is much of the ‘energy’.
PHONO
INPUT
OUTPUT
HA15 HEADPHONE AMP
Haer
5
The Focus control is a carefully managed matrix that combines the discrete
left and right signals with a ‘left-right mix’ to simulate the effect of listening
to loudspeakers in a room. As you increase the effect by turning the Focus
control clockwise, you can decide how much of the music from each side is
mixed to the center, creating a much more realistic rendering. Once you try
it, you will nd yourself setting the center Focus differently as you change
the music source.
Start with the Focus control 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 nd the sweet spot. Try turning off the Focus effect
to compare. Listen carefully and you will notice that the stereo image is
maintained. This sets the Focus apart from others that try to simulate the
effect using a simple stereo-to-mono mix.
Now sit back and enjoy. You are about to hear music in your headphones
with more clarity, realism and dynamics than ever before.
Listening with headphones
Narrow field
Listening with speakers
Wide field
THREE YEAR TRANSFERABLE LIMITED WARRANTY
HAFLER (A division of Radial Engineering Ltd.) (“Haer”) warrants this product to be free from defects
in material and workmanship and will remedy any such defects free of charge according to the terms
of this warranty. Haer will repair or replace (at its option) any defective component(s) of this product
(excluding nish and wear and tear on components under normal use) for a period of three (3) years
from the original date of purchase. In the event that a particular product is no longer available, Haer
reserves the right to replace the product with a similar product of equal or greater value. In the unlikely
event that a defect is uncovered, please call 604-942-1001 or email service@haer.com to obtain a RA
number (Return Authorization number) before the 3 year warranty period expires. The product must be
returned prepaid in the original shipping container (or equivalent) to Haer or to an authorized Haer
repair centre and you must assume 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 modication by any other
than an authorized Haer repair center.
THERE ARE NO EXPRESSED WARRANTIES OTHER THAN THOSE ON THE FACE HEREOF
AND DESCRIBED ABOVE. NO WARRANTIES WHETHER EXPRESSED OR IMPLIED, INCLUDING
BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE SHALL EXTEND BEYOND THE RESPECTIVE WARRANTY PERIOD
DESCRIBED ABOVE OF THREE YEARS. HAFLER SHALL NOT BE RESPONSIBLE OR LIABLE
FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSS ARISING FROM
THE USE OF THIS PRODUCT. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND
YOU MAY ALSO HAVE OTHER RIGHTS, WHICH MAY VARY DEPENDING ON WHERE YOU LIVE
AND WHERE THE PRODUCT WAS PURCHASED.
www.haer.com
Haer HA15™ User Guide - Part #: R870 1300 00
Copyright 2015 Haer All rights reserved.
Specications and appearance subject to change without notice.
Loading...