Redgum RGSB User manual

REDGUM Audio Pty Ltd
Factory 3, 25 Clarice Rd
Box Hill South, VIC, 3128, Australia
Ph: [phone]
Fax: [phone]
redgumaudio.com
ABN 45 093 132 515
REDGUM Audio
Loudspeakers
RGSB
RGS38i
Owner’s manual

Contents
Why REDGUM?..............................................................................1
Connecting your speakers to your amplifier............................................2
Typical connection ...................................................................................2
Bi-wire connection ...................................................................................3
Where to put your speakers..............................................................4
Placing your speakers in the best position..................................................4
Using stands and spikes to improve the sound ...........................................5
Caring for your speakers .................................................................9
Other equipment ........................................................................10
Amplifiers..............................................................................................10
Loudspeaker cables................................................................................10
Achieving the best sound from your system .........................................11
Your listening room................................................................................11
Other helpful hints .................................................................................12
Troubleshooting.........................................................................14
Specifications ............................................................................15
Warranty..................................................................................16
Warranty Registration...................................................................17

1
Why REDGUM?
The river red gum is Australia’s most widespread and recognised tree,
and it produces a wood that is truly unique. It yields the second hardest
timber in the world, and this strength saw its widespread use in the
railway lines that sprang up to connect the rapidly expanding colonies of
early 20th century Australia. Its resistance to termites also made it the
natural choice for building foundations, and to this day it continues to
support some of our most historic structures.
The river red gum can be found on most river banks in mainland
Australia, where its roots tap into water stored in the sands and its leaves
provide food for the indigenous wildlife. It presence is synonymous with
the Australian outback, at once a symbol of life sustaining water and the
struggle against a harsh climate. When conditions turn dry, the red gum
will adapt by shedding huge branches from its trunk in an effort to
conserve moisture. As anyone familiar with camping in the Australian
bush will tell you… don’t ever pitch your tent underneath a red gum tree!
A celebrated part of our culture, it has perhaps been made most famous
through the landscape paintings of Hans Heysen and Ronald Bull.
And while it was in wide use throughout Australia’s history, it was not
until the invention of the carbide saw that it was possible to cut the wood
accurately. And only then could the real beauty of this unique hardwood
be unveiled.
When polished it reveals a deep red lustre, highlighted by an intertwining
and tightly packed grain structure. Fine irregularities add to this beauty,
and it is highly sought after as a decorative wood for these unique
aesthetic properties. No two pieces of red gum will match exactly, and
this is as it should be. Like our products, each piece is outstanding and
unique.
Now that you’ve heard the story of the Australian river red gum, it’s time
to listen to your very own REDGUM. We’ve carefully selected and lovingly
crafted each piece before coupling it to some of the finest audio
engineering that money can buy. The results? Stunning! Trust us, you
won’t believe your ears.

2
Connecting your speakers to your amplifier
To connect your speakers to your amplifier you will need speaker cables
of the correct length for your listening room. We recommend using heavy
gauge speaker wire for the best sound (for more information on choosing
cables see the section on ‘Loudspeaker Cables’).
Your REDGUM speakers have two sets of input terminals at the rear of the
speaker. This means that you can connect your speakers to your
amplifier in one of two ways: ‘typical connection’ or ‘bi-wire connection’.
Bi-wiring your speakers requires two sets of speaker cables, and a little
more effort, but some audiophiles believe the results to be worthwhile
(typically a more ‘open’ sound).
Note
Before making any connections please ensure that your amplifier is turned
off and disconnected from mains power to avoid the risk of electrical shock
and/or damage to your equipment. During connection it is important to
tighten all connections securely (finger pressure only) and ensure that there
are no loose strands of wire. If loose wires touch one another or another
terminal this may result in poor sound or even damage to your amplifier.
Typical connection
The terminals at the rear of your speakers are colour coded red (+) and
black
(-). Follow the procedure below to connect only the upper pair of input
terminals on each speaker to your amplifier.
Typical connection procedure
Step Action
1Connect the:
?? red (+) amplifier terminals to the respective red speaker (+)
terminals; and
?? black (-) amplifier terminals to the respective black (-
) speaker
terminals.
Make sure when doing this that you connect the left/right speakers
to the left /right channel outputs on the amplifier.

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2Ensure that all connections points are clean, and that all connections
are secure. Check that wiring terminations look neat and that no
loose strands of wires are touching any other terminals.
Your speakers are now ready for operation.
Note
We recommend using heavy gauge speaker cable for the best quality sound
(the heavier, the better and with a 2mm minimum).
When using a typical connection, the upper and lower sets of terminals
must be connected to one another for the speakers to operate properly.
For this purpose, your speakers come supplied with gold bridging pieces
already in place making this connection.
Bi-wire connection
The terminals at the rear of your speakers are colour coded red (+) and
black
(-). Follow the procedure outlined below to bi-wire your speakers. Please
note that bi-wiring requires two sets of loudspeaker cables.
Bi-wire connection procedure
Step Action
1Remove the gold bridging pieces conmnecting the upper and lower
sets of input terminals on each speaker.
2Connect theleft speaker. For both upper and lower pairs of speaker
terminals, connect the:
?? red (+) terminals to the amplifier’s left red (+) terminal; and
?? black (-) terminals to the amplifier’s left black (-) terminal.
3Connect the right speaker. For both upper and lower pairs of
speaker terminals, connect the:
?? red (+) terminals to the amplifier’s right red (+) terminal; and
?? black (-) terminals to the amplifier’s right black (-) terminal.
4Ensure thatall connections points are clean, and that all connections
are secure. Check that wiring terminations look neat and that no
loose strands of wires are touching any other terminals.
Your speakers are now ready for operation.

4
Where to put your speakers
Most people will place the speakers in the most convenient position,
based on the surrounding décor. While this is perfectly acceptable, you
can improve the sound quality by paying a little attention to the proper
placement and set-up of your speakers. The information below is
provided to assist you in this.
Placing your speakers in the best position
Deciding on the best placement for speakers is a very individual thing, as
each of us have our own listening preferences. Try moving your speakers
around while listening to some favourite tracks until you find the result
which suits you best.
Distance from the surrounding walls
Placing your speakers right in the corners of the room can result in bass
which sounds 'boomy'' and unclear. Try to keep your speakers at least
20cm (8 inches) from both the rear and side walls. Bigger distances will
usually bring about an additional improvement in the sound.
Distance between the speakers themselves
The correct distance between the speakers will depend on the size of your
listening room, and your personal taste. Start by experimenting with the
speakers from two to four metres (six to twelve feet) apart.
Distance between the speakers and the listening position
The best stereo imaging will be achieved when the listening position
forms the point of a triangle, where the other two points are made by the
speakers themselves. Start with your listening position as the point of an
equilateral triangle, and experiment by moving forwards and backwards.
The angle (“toe-in”) of the speakers
At REDGUM Audio we recommend a 30 degree angle between the
speakers. This provides a strong central image, and suitable 'timing' to
provide good rear projection for home theatre. You should experiment,
however, to find the sound that suits you best as room acoustics can vary
widely (See section ‘Getting the most from your listening space’).

5
Using stands and spikes to improve the sound
My speakers are already low in resonance. Do quality speakers really
need such extras?
When buying quality hi-fi speakers, the customer rightly assumes the
most important basics of speaker design have been attended to. However,
as you set up the speakers it is still possible to enhance their
performance through the use of stands and spikes. (True, there are other
ways, but let us focus in some detail on a tried and trusted, simple, cost-
effective method that anyone can use.)
The first assumption to make of quality speakers is that the cabinet is
constructed of a uniform, rigid material, commonly MDF (Medium Density
Fibreboard). A manufacturer’s ability to create near identical enclosures
from MDF is (part of) your guarantee that your speakers are sonically a
“matched pair”. Unfortunately, speakers made of solid red gum (or any
other) wood could never be a visually, or sonically matched pair, so a pair
of REDGUM speakers is only able to present you with the real wood as a
beautiful veneer.
The rigidity provided by the materials and construction method will result
in a speaker cabinet that is low in resonance. Both REDGUM Bookshelf and
Floorstanding speakers are constructed of 19mm (¾ inch) MDF, and have
internal cross-bracing to add to the rigidity of the enclosure. This rigidity
is important as you wish to hear only the music recorded through your
speakers, and not the intrusive additional “music” (or resonance) created
by the speaker cabinet’s own response to the stored energy within its
walls.
To test whether your speaker cabinet is low in resonance:-tap the
outside of the speaker with your knuckles. It should produce a dull ”thud”
sound. True, there is a sound, but it does not continue to “ring” –the
sound begins, but it seems to be ”swallowed up” as the vibration is unable
to continue for the usual length of time expected with solid wood. It
sounds “dead”.
How “low” is low in resonance? As the ideal construction materials for a
virtually resonance-free speaker would be lead, or concrete, and often
involve sand-filled walls, commercial and domestic (!) considerations
make the cost, and exertion, of moving such speakers prohibitive. When
cheaper, more manageable solutions exist with audibly measurable
improvements, it is worth considering the use of rigid speaker stands on
spikes, and even lead shot (see Section on ‘The addition of lead shot’
below).

6
Why anchor the movement caused by the cone?
For a driver to produce a sound, theoretically only the cone need move
forward to create the air pressure wave that we hear. However, as we all
learnt at school, Newton’s Third Law of Physics states: to every Action,
there is an equal and opposite Re-action. Depending on whether the
speaker cabinet is anchored or unanchored, the interaction of the speaker
cabinet with the cone movement is like the difference between diving off
the concrete edge of a swimming pool and diving off a small rowboat on
the water.
If the swimmer is compared to the speaker cone, then diving from the
concrete edge is like having a speaker coupled to/on a stand on spikes,
whereas diving from the rowboat is when the speaker cabinet is not
anchored by spikes or is not on a stand. Diving from a rowboat, the
energy of your forward/upward movement is partly lost because as you
push down against the boat, it moves away in the direction your legs
push it (i.e. downwards/backwards). This results is much less
forward/upward energy, and is far less controlled than when pushing
against the solid pool edge.
This image of the lost energy of motion parallels the losses in the quality
of sound when the speaker assembly (cabinet, driver frame, stand, spikes)
moves independently of the cone. When the cone moves forward, how
much of the motion/energy is translated into an accurate sound wave will
depend on how much cumulative movement there is in the total
‘assembly’. For a speaker on a stand without spikes, the cabinet
responds, in effect, like a punching bag on a pole. The speaker’s weight is
uppermost; the movement is a forward/backward rocking motion. Even if
the speaker is placed directly on the floor rather than a stand, the
backwards rocking effect will occur/be the same, though the lack of
height provided by the stand will create less of a levering action/effect.
The addition of a stand provides a rigid platform to hold the speakers
securely. It also increases the overall mass (adding lead shot can further
enhance this). The combination of a stand with spikes will have the
greatest effect on minimizing speaker movement. Whether anchored
directly by spikes or placed on a stand with spikes, the rocking of the
speaker cabinet will be lessened (though it cannot be removed
altogether). All the same, these measures create an improvement in the
sound quality that is most definitely audible.

7
Testing for the improvement in the sound
A convincing display of the improvement in performance is easy to set up.
Check the sound of your system as you progressively anchor the speakers
by the addition of stands, and then spikes. As a way of measuring the
change in the sound quality, play a recording where there is an exposed
section of drums, especially with loud, sharp rim shots. Repeat the track
after each alteration to/addition of stand and spikes. As the rigidity of the
structure supporting the speaker increases, the isolation of the speaker
cones from unwanted vibrations and resonances increases. This can be
heard as a ”tighter”, faster bass with better image and clarity. Transients
are …… truly transient!
The practicalities of using stands and spikes
Speakers the size of the REDGUM Audio RGSB’s are commonly described
as ‘Bookshelf’ speakers. While it is true that small speakers may be placed
on or even in a bookshelf, they will perform better when placed on a rigid
set of stands.
When choosing stands for either Bookshelf and Floorstanding speakers,
look for ones that will support the speakers at the ideal listening height
(tweeter at about ear level when seated). Stands should also be
constructed of a rigid material, such as steel, and are most effective when
they come with spikes to ensure a solid connection with the floor. The
possibility of being able to increase the weight of the stand by filling its
interior is always a plus/of benefit. (See section on ‘The addition of lead
shot’ below.)
To ensure a good connection between the base of the speaker and the
stands (Speaker Coupling), place a small pea-sized piece of blu-
tack/poster tack on each corner of the stands. If you do use blu-
tack/poster tack, please note the following caution.
Note
Blu-Tack/Poster Tack is strong enough to tear veneer off a speaker box!
So do not try to lift the speaker directly off the stand. While holding both
the speaker and its stand firmly together, place the speaker face down on
the floor, and wait for gravity to work. The “Blue-Tack/Poster Tack” will
slowly release its grip between the veneer and the stand, and the stand will
gently slide to the floor. Less than one minute’s patience keeps the speaker
veneer in perfect condition.

8
If the additional height given by a stand is of no advantage, spikes may be
also used directly with our floorstanding RGS38i model. The benefits
here are the same as for stands with spikes –spikes allow the speakers to
be rigidly coupled directly to the floor, increasing the isolation of the
speaker cones from unwanted vibrations (both from other equipment and
up through the floor) and speaker resonances. Adjust the height of your
spikes so that all of them are making good contact with the floor, and the
speakers’ sides are vertical. This can be checked by applying some
strong sideways pressure to make sure that the speakers do not rock in
any direction. This lack of movement should also be checked for when
speakers are mounted on stands with spikes.
Using spikes to connect your speakers to the floor may sound a little
drastic, but it really is one of the simplest and most effective
improvements you can make to your sound system. For those with
polished floorboards or other similar surfaces, place a large coin under
each spike to minimize any marks on the floor. The coins can be safely
secured to the floor by using pea-sized pieces of blu tack/poster tack.
The addition of lead shot
As has been mentioned in passing in the section above on Stands and
Spikes, using lead shot (or sand) is one way of adding to the mass of a
speaker stand and thus increasing its resistance to the movement set up
by the cone’s forward excursion. Any way of increasing the inertia of the
speaker-stand combination will be effective at reducing the rocking
motion which creates the unwanted resonances that lessen performance.
Thus, it follows that being able to add lead shot directly to the speaker
cavity is also desirable/effective.
The RGS38i Floorstanding model has an isolated chamber in the base of
the cabinet for this purpose. A metal “plug” can be unscrewed on the rear
panel of the cabinet and through this lead shot (or clean dry sand) can be
added. As lead shot is deceptively heavy, we recommend deciding on the
final position of the speakers before filling the cavity. Lie the speakers
face down from that position so that the effort to lift the “filled” speaker
will be required only for a brief moment.

9
Caring for your speakers
Your speaker cabinets may be cleaned as required with a soft cloth
dampened with water. No further care is required as the veneer of real red
gum wood has been fully sealed with a synthetic coating of Polyurethane.
You should avoid wiping either the speaker cones or the tweeters
themselves. However, if you prefer to listen to your speakers with the
grilles removed, dust build-up can become a problem. In this case, we
recommend the use of a small, soft brush (e.g. an unused paintbrush) to
lightly flick the dust off.
Finally, if you want to use the speakers outdoors for a party, make sure
they are well protected from moisture at all times! To ensure that there is
no danger of the speakers being pulled off their stands, also make sure
that the connecting cables are laid out carefully on the ground. It is a
good idea to tape the cables to the floor to ensure that no-one trips over
them.

10
Other equipment
Amplifiers
Model RGSB (Bookshelf) –are designed for use with quality amplifiers that
have a power rating of 30 -150 watts RMS (for example, the REDGUM
Audio RGi35, RGi60, or RGi120).
Model RGS38i (Floorstanding) –are designed for use with quality
amplifiers that have a power rating of 50 -200 watts RMS (for example,
the REDGUM Audio RGi120 or RGM175).
Loudspeaker cables
Cable quality and construction do make a difference to sound quality, and
we recommend the use of thick copper cables. When choosing cables,
look at a cross-section of the bare cable to determine its actual thickness,
unmagnified by the surrounding plastic. Choose a cable that offers a
large perimeter of copper, as a large surface area will assist transmission
of the signal.
To minimise the effects of RF interference, keep your speaker cables
uncoiled and away from mains power cables. Wherever possible, keep the
lengths of cable the same for the left and right channels.
Note
Important safety note –Always remember that all speaker cables carry
electrical current. Never touch bare wires! Do not leave any wires with bare
ends exposed where they can come into contact with other cabling,
terminals or humans. Any bare sections of wire should be secured by
covering with electrical insulation tape.

11
Achieving the best sound from your system
This section is provided to offer some general assistance to those seeking
to get the very best performance from their system. You will be surprised
by just how much improvement can be had be experimenting with a few
simple factors. The following advice is based on our own years of trial
and error, and we hope that checking through it makes a positive
difference to the sound of your system.
Your listening room
Strange as this may sound, the room itself will have a profound affect on
how your audio system responds. In fact, many experts consider the
room to be as important to the sound as any other component in your
system!
Did you ever notice how it’s difficult to talk in some restaurants because
you can’t hear each other over all the other conversations going on
around you? Yet another similarly sized restaurant is perfectly suited to
intimate romantic murmuring. The difference lies in the surfaces around
you. Here is a simple test –go into your bathroom and clap your hands;
then clap them again in a room with carpet, curtains and other soft
furnishings. Notice the difference? In a room with many hard reflective
surfaces sound waves bounce around a lot before dying out. Not even
the most expensive stereo in the world is capable of sounding good in
such a challenging acoustic environment.
When it comes to your listening room the same principles apply. Wooden
floorboards, polished concrete and slate are all highly reflective surfaces.
In a room without curtains or other wall furnishings the sound may be
overly ‘bright’ or aggressive.
Similarly, it is possible for a room to be too ‘damped’ or absorptive.
Where there are no reflective surfaces at all the sound may seem ‘dead’ or
lacking in energy.
Luckily for us, most household rooms are a combination of the two. And,
generally speaking, a combination of the two will bring about the best
results.
Too many hard surfaces?
If your room is sounding too ‘bright’, try placing a large rug on the floor
between your listening position and the speakers. Or hang some soft
furnishings from the walls.

12
Too many soft surfaces?
If your room is sounding too damped, try removing some of the soft
furnishings from the walls or rugs from the floor.
Managing the bass
Sometimes, low frequency waves can also bounce around and cause
problems in a listening environment. This may be the result of the shape
of the room, or the materials it is constructed from. Large pieces of
furniture in a room can often help to break up these ‘standing waves’.
While few of us will feel the need to redesign a room to improve its sonic
properties, sometimes a small change, like placing a rug on the floor, can
make a big improvement to the sound.
Other helpful hints
Corrosion and sound system terminals
Atmospheric corrosion can build up on speaker cable and interconnect
terminals under normal conditions over time. Should this occur, simply
removing and re-inserting wires and cables will clean and improve the
contact and hence the quality of signal transmission. Always remember
to turn off all equipment before connecting or disconnecting any wires or
cables.
Amplifiers (other than REDGUM) as a source of speaker damage
If the amplifier in your system is not, repeat, not a REDGUM, your
speakers may suffer damage from “switch on” surges, or other noises that
may cause over-excursion of the cones. These situations are more likely
to occur if you have separate, unmatched Pre-and Power amplifier units.
The safe order for turning such a system on and off is: Power amp On
last, Power amp Off first.
Put another way -when turning your amplifier on, Pre amp comes first
and then Power amp. When turning Off, simply reverse the order.
Following this procedure will help protect your speakers.
Placement of components in your sound system
Lots of fresh air is important to the health of your electronics. The louder
you play your music, the more important it is to ensure that components
receive adequate ventilation. Amplifiers, in particular, will generate a lot
of heat. Placing the amplifier at the top of the stack, and ensuring

13
adequate ventilation, will help to ensure that heat can be dissipated as it
should.
Amplifier volume and use of tone controls
Any amplifier can damage any speaker regardless of the power rating of
the amplifier or power handling capacity of the loudspeaker. When an
amplifier is played too loudly, sudden peaks (transients) in a musical
passage can cause the amplifier to attempt to deliver more power than it
can safely deliver. The result is amplifier ‘clipping’, which is a dangerous
form of distortion. Some amplifiers may also produce low frequency
pulses that can damage both woofers and crossover networks. There is
only one ‘fail-safe’ method -due care! Learn the maximum safe volume
position of your amplifier (visually around 12 o’clock on the dial for
REDGUM amplifiers –other brands will vary) and learn to live within this
limit.
You should also bear in mind that tone controls are not quality controls,
and cannot adequately compensate for the poor sound of a system or a
recording. If your amplifier has ‘Bass’ and ‘Treble’ controls, try to avoid
setting these at high levels as this can place considerable strain on your
amplifier.
Whenever changing input sources, cueing a record or cleaning a stylus,
make sure you turn down the volume.

14
Troubleshooting
The following troubleshooting guide is designed to assist you in
identifying and rectifying any problems you may experience with your
speakers.
Symptom Likely cause Recommended action
Stereo image is vague/
bass response is lacking Speakers out of phase Check that the correct + to + and – to –connections have been made
between the amplifier and your
speakers (see ‘How to connect your
speakers to your amplifier’ above)
There is bass but no
treble, or vice versa Typical connection –upper and lower terminals at rear of speaker
not connected by bridging pieces
Bi-wire connection –upper or lower
terminals not connected to amplifier
Check the bridging pieces are in
place (see ‘Typical connection’
above)
Check that all required cable
connections are in place (see ‘Bi-
wire connection’ above)
Too much bass/undefined
bass Speakers too close to rear wall Re-position speakers (see ‘Where to put your speakers’ above)
Buzzing or crackling sound
when connecting wires Equipment is turned on Turn off all equipment before making any cable connections
Distortion at low volumes Speaker wires are touching each
other, or another terminal, and
shorting the signal
Amplifier is damaged
Ensure that all cable connections are
clean with no loose wires
Check/repair amplifier
Distortion at high volumes Amplifier is overloaded Turn down the volume to avoid
damage to your speakers and
amplifier
If the problem cannot be resolved by any of these recommended actions
you should make certain that the problem lies with the speakers, as
malfunction within other components may also be the cause of the
symptoms. You can do this by borrowing a CD player and amplifier that
you are certain are working, and replace your normal components with
these to test the speakers in isolation. If the problem persists, please see
your local REDGUM Audio dealer.

15
Specifications
RGSB
Product Type: Bookshelf Speakers
Cabinet Finish: real Red Gum Wood Veneer over MDF core
Bass Loading: front ported Bass reflex
Driver Complement: 2-way, two driver system 1x25mm soft dome
tweeter plus 1x165mm polypropylene woofer/midrange
Frequency Range: 40hz-19khz
Sensitivity: 92db/W/m
Impedance: (nominal): 8 ohms
Crossover Point: 3kHz woofer to tweeter
Suggested Amplifier: RGi35, RGi60, or RGi120 (30 -150 watts rms)
Dimensions: 210 (W) x 273 (D) x 425(H) mm
Features: Bi Wiring as standard
Connections: 5 way gold binding post
Crossover: Polypropylene capacitors, air-cored inductors, wire wound
resistors
Shipping weight: 18.3 kg (22.3 kg cubic) per pair
RGS38i
Product Type: Floor-standing Speakers
Cabinet Finish: real Red Gum Wood Veneer over MDF core
Bass Loading: Bass reflex, twin rear ported
Driver Complement: 2-way, three driver system, 25mm soft dome
tweeter, 2 x 165mm polypropylene woofer/midrange
Frequency Range: 32hz -20khz
Sensitivity: 94db/W/m
Impedance: 6 ohms (nominal)
Crossover Point: 2.8 kHz woofer to tweeter
Suggested Amplifier: RGi120, RGM175, (50-200 watts rms)

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Dimensions: 210 (W) x 273 (D) x 985 (H) mm (changed order of numbers
?)
Features: Bi-Wiring as standard; lead shot chamber
Connections: 5-way gold binding post connections
Crossover: Polypropylene capacitors, air-cored inductors, wire wound
resistors
Shipping weight: 19.8 kg (26kg cubic) each without lead shot
Warranty
REDGUM speakers are warranted to be free of defects in material and
workmanship, subject to the following conditions, for FIVE (5) years from
the date of purchase by the original owner. Warranty claims must be
accompanied by proof of purchase, including date.
This warranty is subject to the following conditions and limitations:-
This warranty is void and inapplicable if the speakers have:
not been used in accordance with the instructions contained in
the manual;
been subject to misuse or abuse, one example of which would
be burned voice coils;
been modified, repaired or tampered with by anyone not
specifically authorised in writing to do so by REDGUM or its
agents;
been subject to inputs in excess of the maximum rating, or
inputs from unstable or clipped amplifiers;
been damaged by accident, intent, neglect or transportation.
Should the product be faulty, the owner is liable for the cost of freight to
the nearest REDGUM repair agent, or the factory. Should the product be
found to be without fault, the owner will be liable for the return freight
also.

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Warranty Registration
Complete for warranty registration:
Name
Address
City
Zip/Post Code
Country
Date of purchase
Place of purchase
Model No
Serial Number (if any)
Fax this page to the REDGUM Audio factory at [phone]
Alternatively, you may email the details (including serial number) to
[email protected]