Krix HEMISPHERIX A20 User manual

HEMISPHERIX AS, A20 &SPS
INSTALLATION GUIDE

SETUP IN BRIEF
The following setup procedure will help you gain the best
performance from your in-ceiling speaker:
1. Unpacking
Remove your speaker from the packaging
2. Introduction
Learn about the Hemispherix AS, Hemispherix A20 and
Hemispherix SPS
3. Before you begin
Determine a suitable location for your speakers
4. Installation
Cut mounting hole, connect cabling and install speaker
5. Listen and enjoy
Listen to your favourite music/movies and enjoy
Disclaimer
Drilling into anything can be dangerous. You should make sure you know what is behind or inside the surface that you are drilling before
you start to drill. For example, you might strike an electrical cable.
You must install the speaker securely to the surface that you are xing it to. If you don’t, injury or damage may occur.
If you do not feel entirely condent about installing this product, contact a professional installer.
To the extent permissible by law:
All warranties, conditions, representations, promises and statements relating howsoever to this product whether express or implied and
whether in contract or tort are excluded to the extent permitted by law; and
Our liability to you under a condition or warranty (if any) implied into this sale and purchase agreement relating to these brackets by the
Trade Practices Act 1974 (as amended) or any other law (whether a law of Australia or any other country) other than a condition implied by
Section 69 of the said Act is limited at our option to:
the replacement of the product; or
the supply of an equivalent product; or
the repair of the product.
If you do not accept the above conditions, return this product (in the original packaging) with proof of purchase for a full refund.
Congratulations on choosing Krix
Your Krix speakers are designed to reproduce the highest quality sound. To get the best
performance from your speakers please read these installation instructions thoroughly as
there are many factors that influence the performance of your speakers. If you have any
difculties please contact one of our friendly authorised Krix dealers.
2

Figure 3
Figure 4
Figure 2
500mm
recommended
minimum
A20 Orientation
500mm
Figure 1
INTRODUCTION
Introduction
The Hemispherix AS and A20 are in-ceiling
loudspeakers featuring fully sealed back-boxes
to control and maximise bass response, whilst
keeping out dust and other ceiling inhabitants.
The Hemispherix A20 employs an acoustically
optimised front baffle angled at 20 degrees,
allowing its sound output to be projected
towards your primary listening area.
The Hemispherix AS employs a flat front baffle
for uniform sound coverage in all directions
The Hemispherix SPS features a stereo pair
of inputs and a slim semi-open back box,
providing a stero effect from a single source
(gure 1).
Applications best suited to Hemispherix AS
The wide uniform coverage of the Hemispherix
AS makes it the ideal choice for 2 channel stereo
and background music applications. Its uniform
coverage is ideally suited to any applications
where the listening area is not conned to a
specic part of the room. For example, hallways,
dining rooms, ofce spaces, bedrooms and
multipurpose rooms (gure 2).
Applications best suited to Hemispherix A20
The ability of the Hemispherix A20 to project
sound toward your primary listening area makes
it ideally suited to home cinema applications
(gure 3). Dialogue will become more articulate,
music will have better denition and surround
effects will become more involving and
realistic. The A20’s ability to direct more
sound towards the listener results in less
sound reflecting off walls and other surfaces
in the room, creating a clearer, more three
dimensional soundstage. The A20 may also
be useful for background music applications
where the speaker must be placed near a side
wall for aesthetic or structural reasons. In this
application the A20 can be used to project
the sound towards the centre of the room.
Applications best suited to Hemispherix SPS
The Hemispherix SPS is perfect in small rooms
where there is difculty tting a stereo pair of
loudspeakers (gure 4). It can also be used
where there is limited ceiling height.
If desired, two Hemispherix SPS loudspeakers
may be wired together in parallel, or a single
Hemispherix SPS may have both inputs wired
in parallel from a single output.
Hemispherix A20
Hemispherix A20
Hemispherix SPS
Hemispherix AS
157 145 90
Hemispherix AS Hemispherix SPS
3

• Also ensure that there is enough ceiling/
wall space to accommodate the speaker
enclosure.
Connecting
To ensure optimum performance, it is
important that your speaker system is
connected properly:
Turn off all electronic equipment and
disconnect from the power point.
• Follow the connection instructions
supplied with your amplier and media
player.
• Install speaker cable in the wall or the
ceiling cavity. Allow approximately
300mm of excess cable to facilitate the
loudspeaker installation.
• Follow the connection instructions
supplied with your amplier to connect
the speaker cables to amplier. Take
care to assign the same cable colour or
trace to the positive (+) connector on the
amplier as the positive (+) connector on
the speaker.
• Prepare the speaker cables for connecting
to speakers by neatly stripping the cable
ends.
Care should be taken to eliminate loose
strands of wire that may present a short
circuit hazard.
Painting
• If the speaker grille requires painting it is
recommended to use a spray can for ease
of application. Alternatively, it is possible
to apply acrylic or enamel paint using a
small foam roller but this will require more
applications to achieve a good result.
Spray can application
• Use a spray can to apply a light coat of
paint. Rotate the product at 90° intervals
and apply three more light coats to ensure
an even coverage (gure 6).
• Be careful in applying single heavy coats
of paint as there is a higher probability
of blocking the holes in the grille. If the
grill does become blocked by paint,
use a small pin or similar to release the
blockage, while the paint is still wet.
Roller application
• Load a foam roller with a light coverage
of thin paint and then roll onto the grille.
Try to avoiding blocking the holes in the
grille. If the grille does become blocked
by paint, use a small pin or similar to
release the blockage, while the paint is
still wet.
• Allow the paint to dry. Apply three or more
light coats to ensure an even coverage
(gure 7).
Installation
• Once the correct placement has been
determined, use the cardboard insert
marked ‘template’ (from the internal
packing) to trace the required cut-out
onto the ceiling/wall (gure 8).
• Drill a hole inside the marked cut-out.
Using a ne gyprock saw, cut around the
inside of the marked cut-out (gure 9).
• Remove the circular offcut and insert the
speaker to check the hole is the correct
size. Enlarge the cut-out if required.
Hemispherix A20 only:
Determine the correct orientation for
your speaker. It is recommended that
the Krix logo is aimed towards your
primary listening area for best results
(gure 3).
• Pull the stripped speaker cable through
the ceiling/wall opening. Push and hold
down the positive (+) red binding post on
the speaker and insert the positive (+) wire
through the hole in the post. Take care to
assign the same cable colour or trace to
the positive (+) connector on the amplier,
as the positive (+) connector on the
speaker. Repeat the connection process
with the negative (-) black binding post
and the negative (-) wire (gure 10).
• Ensure all the mounting clamps are turned
back against the speaker enclosure
(gure 10), so that the speaker can be easily
inserted into the ceiling cut-out. Once the
speaker has been located in the ceiling/
wall, use a Phillips head screwdriver to
tighten all the mounting screws. As the
screws are tightened, the mounting
clamps will automatically swing out over
the plaster board and clamp the speaker
in place. Be careful not to overtighten the
screws, as this may strip the clamp, or
crush the plaster board surface (gure 11).
• The Hemispherix AS features a pivoting
tweeter which allows the high frequency
sound to be directed as desired. Gently
press on the round outer edge of the
tweeter frame to tilt the tweeter to the
desired position. Be careful not touch the
tweeter diaphragm, as this may damage
the tweeter (gure 12).
• Gently t the magnetic grille to the front
of the speaker housing (gure 13).
INSTALLATION
Before you begin
Please read the disclaimer on page 2 of
this manual.
• To determine the best location for your
loudspeakers, refer to page 3 of this
manual and discuss with your local Krix
dealer, or installation consultant. Be sure
to check for any obstructions, such as
electrical wiring, plumbing, stud work or air
conditioning ducts before commencing
the installation (gure 5).
4
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Figure 5
Figure 6
Figure 7
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Figure 13
Figure 10 Figure 11
Figure 12
Figure 9Figure 8
INSTALLATION
5

6
SPECIFICATIONS
Warranty
Lifetime limited warranty applies to the
cabinet and speaker.
(Refer to the details on the warranty card
supplied)
Queries
If you have any queries regarding the
Hemispherix or any other Krix product,
please contact your nearest Krix dealer or Krix
directly. Contact details are on the back cover
of this booklet.
Hemispherix AS
Hemispherix A20
Frequency range 65Hz - 40kHz in room response
Power handling 20-100 watts RMS recommended amplier power
Sensitivity 86dB for 2.83 volts at 1 metre
Conguration 2-way
Bass Driver(s) Nominal 100mm (4”) doped paper cone. 25mm (1”) voice coil
wound on high temperature Kapton former
Tweeter 20mm (¾”) ring radiator, adjustable ‘eyeball’
Crossover Points 2.1kHz
Impedance Nominally 6 ohms (minimum 4.2 ohms)
Enclosure Type Bass reflex, front vented
Dimensions 255mm diameter x 145mm mounting depth
Mounting cut-out diameter 207mm
Finish White (can be painted to match your décor)
Input Terminals Push type connectors
Weight 2kg each
Frequency range 65Hz - 40kHz in room response
Power handling 20-100 watts RMS recommended amplier power
Sensitivity 86dB for 2.83 volts at 1 metre
Conguration 2-way with 20° angle
Bass Driver(s) Nominal 100mm (4”) doped paper cone. 25mm (1”) voice coil
wound on high temperature Kapton former
Tweeter 20mm (¾”) ring radiator
Crossover Points 2.1kHz
Impedance Nominally 6 ohms (minimum 4.2 ohms)
Enclosure Type Bass reflex, front vented
Dimensions 255mm diameter x 157mm mounting depth
Mounting cut-out diameter 207mm
Finish White (can be painted to match your décor)
Input Terminals Push type connectors
Weight 2kg each

7
SPECIFICATIONS
Hemispherix SPS
Frequency range 70 Hz - 40 kHz in room response
Power handling 5-50 watts RMS recommended amplier power per channel
Sensitivity 85 dB for 2.83 volts at 1 metre
Conguration Dual 2-way
Bass Driver(s) 1 x 125mm (5”) polypropylene cone, 35mm dual voice coil
Tweeter 2 x 20mm (¾”) ring radiator
Crossover Points 2.4 kHz
Impedance Nominally 8 ohms per channel (Minimum 6.4 ohms)
Enclosure Type Semi-open back
Dimensions 255mm diameter x 90mm mounting depth
Mounting cut-out diameter 207mm
Finish White (can be painted to match your décor)
Input Terminals Push type connectors
Weight 1.8 kg each

krix.com
Krix Loudspeakers Pty Ltd
14 Chapman Road
Hackham SA 5163
Australia
T 61 8 8384 3433
F 61 8 8384 3419
[email protected] Rev #10003