Aaron SAT-60 Operating instructions

Type
Operating instructions
INSTRUCTIONS
Congratulations on choosing “Aaron" loudspeakers. We at Aaron have gone to the upmost trouble
to ensure your continuing satisfaction for many years to come. Every individual speaker must meet
our exacting specifications with regards to performance and craftsmanship before it is allowed to
leave our factory.
The single biggest bone of contention that customers have with speaker manufacturers is caused
when a speaker is damaged by too much power input or by amplifier distortion. This is not
covered by warranty as it is deemed to be customer abuse, often the customer feels this problem
should not arise. So in an effort to further improve our relationship with you, (our valued
customer), there is something we will try to help you understand in an effort to circumvent this
potential problem.
As a manufacturer it is impossible to protect or prevent you the consumer from damaging the
speaker when one of the two following things happen:
1: Using an amplifier that has too much output for the speakers capacity.
2: Causing the amplifier to distort by turning up the volume too high.
The first problem is easy to avoid. When you purchase an amplifier you must take note of its`
power output. This will tell you the minimum size speaker to purchase. For instance if you
purchase a 100W speaker then the amplifier must be rated at 100W or less. By the way, it is
perfectly alright to use a 400W speaker with a 10W amplifier there is no limit in that direction but as
a general rule an amplifier closer to the rating of the speaker will sound a little better. If the speaker
is very efficient the improvement will be less obvious.
The second problem is far harder to understand and avoid. You see, even if the amplifier power
is smaller than the speaker it is still possible to damage the speaker. This is caused by what is
known as distortion. An amplifier distorts when the volume control is turned up too high forcing the
amplifier past its rated power output. So an amplifier rated at 100W can be forced to put out 120W.
But 20W of that power is distortion and this is what damages your speaker. The hard part is to
know when your amplifier has passed its limit and is distorting. The position of your volume control
will not tell you, if the source output, (the source is a DVD player, CD player or Tape deck etc.) is
high then the amplifier may distort with the volume control at 12 o`clock but on the other hand if
the source has a low output the amplifier may not distort until 3 o`clock. The only way to tell is by
listening carefully to the music quality. Don`t turn the volume control any more if the sound
becomes harsher, less tight and a bit blaring. That holds even if the volume control is less than half
way.
IT IS ABSOLUTELY VITAL YOU READ
THIS NEXT SECTION!
OTHERWISE IT COULD CAUSE YOU A
LOT OF NEEDLESS EXPENSE.
INSTALLING & CONNECTING YOUR SPEAKERS
TIMES WHEN YOUR SPEAKERS ARE AT MOST RISK FROM YOU.
Parties are the most common cause of speakers being damaged by too much power or by
distortion, it often happens because of a desire to have the music loud. Distortion is harder to
detect because it is masked by lots of other noise.
After you have been listening to the music for a while there is a natural temptation to turn up
the volume. This is because your ears lose their sensitivity.
Turning up the volume so you can hear the music in another part of the house or outside.
Instead either install extension speakers or have long speaker leads.
Your children, (if you have them), when you are not present often have the stereo distorting.
Either fix it so they can`t turn the stereo on or educate them about the expensive damage
caused by having the volume too high.
After you have been to a loud concert or live gig. Once again your ears have become less
sensitive.
When you are in a state of intoxication is another time when there is a temptation to turn the
volume up without care.
The best way to avoid the above potential problems is at a time when you are fresh, turn the
volume control up until the quality of the sound changes as described previously. Take note of that
position and make sure, no matter what the circumstances, the volume control is not turned above
that point. If at that point the volume is not loud enough there is only one solution, it means you
have to purchase a larger amplifier and, if required, larger speakers.
Fix the mounting bracket [Fig.1 - (a)] to the wall first. The bracket can be positioned either
horizontally or vertically and fixed into position using keyholes, we recommend that the
screws are made tight and not a slip fit. The large hole in the brackets centre is for putting
the wire through when the cable is coming directly out of the wall.
Connect the wires to the speakers. Connection can be done either by using bared wire, 4mm
banana plugs or with 8mm spades. If you choose to use bared wire for our three way
terminals [Fig.2 - (a)], simply unscrew the nuts and you will find, under the nut, a hole to push
the wire into. Tighten the nuts down finger tight only.
Attach the speakers to the brackets with the screw-in knobs [Fig.1 - (b)] supplied and adjust
the angle of the speaker to your satisfaction. Make sure the lip and slot line up before you
tighten the knob to prevent movement.
If the speaker is to be mounted where it will be subject to weather, aim the speaker slightly
downwards to avoid damage to the woofer and tweeter from driving rain, water pooling and
minimise direct sunlight.
Fig.1
(a)
Fig.2
(a)
(b)
To rotate the “Aaron” badge on the grill to suit your installation simply pull the badge forward
enough to clear the grill, it is held in position by a spring.
We do not supply speaker cable with the speakers because every installation is different.
There are though, some important points to note. Keep the speaker cable as short as practical
and use good quality cable. As a guide, if the cable needs to be more than 5 metres long the
conductor diameter should be greater than 1.5mm (18 gauge). At no stage is it suitable to
use wire diameter of less than 1mm (22 gauge). The longer the run of cable the thicker it needs
to be.
When connecting the speaker to the amplifier it is very important that the positive (+)
terminal on the amplifier is connected to the positive terminal on the speaker. In most cases
this means that the red terminal on the amplifier is connected to the red terminal on the
speaker. Likewise the black terminals are connected to each other. Failure to do this will result
in a reduced bass performance and loss of stereo image.
Never allow the two conductors in the speaker cable to touch each other as this could cause
damage to your amplifier.
In the case where cable is already wired through the house, or cable has no markings, contact
your Hi Fi specialist for advice.
Very important please note: What we state in this section relates only to the
AARON LOUDSPEAKER product, we are not responsible for any nominal
specifications quoted by any other manufacturers that may be inaccurate.
It is important that you understand a little about your speakers impedance for two main
reasons. One is to calculate how much undistorted power your amplifier will deliver. Secondly to
check that the speaker`s impedance is suitable for your amplifier or if it`s safe to have two
speakers on the output of each channel. The speaker input resistance is quoted as the “nominal
impedance” this is what you base all your calculations on.
1: If you wish to calculate the output power from the amplifier then you must first look at the
amplifier specifications. It will usually give you an output rating for 4 ohms and 8 ohms. If the
nominal speaker value is 8 ohms for example, then the amplifier`s power rating for 8 ohms is the
one you have to allow for. Note: If the speaker`s nominal impedance is 6 ohms (which is the case
with some models on the Aaron range) then the maximum undistorted power from the amplifier will
be half way between the 4 ohm and the 8 ohm rating.
2: It is safe to have a speaker with a nominal impedance greater than the amplifiers minimum
output rating, but care must be taken not to use a speaker or speaker combination that is below
the amplifier`s minimum impedance capability. Having said that, most reputable amplifier
manufacturers allow for a small safety margin, for instance it is not likely to cause any problem if
you connect an “AARON” 6 ohm speaker to an 8 ohm rated amplifier output. Should you wish to
put two speakers on each amplifier output, a little more care is required. Below is a list of safe
combinations that can be used with the most high quality, modern amplifiers.
Main speaker (ohms) 16 16 8 16 6 8 8 6
&&&&&&&&
Second speaker(ohms) 16 8 16 6 16 8 6 8
If your combination does not fit any of the above seek advice from the amplifier manufacturer
before turning the system on. Note: a 6 plus 6 ohm connection may be possible but check first as
the amplifier will need to be rated into 2 ohms to make this combination safe.
SPEAKER INPUT IMPENDANCE
SPEAKER PLACEMENT (IF USED FOR SURROUND SOUND)
With an audio visual sound system “surround sound” speakers have to be placed in certain
positions to obtain the best surround sound effect. However the system must also fit in with your
room layout and decor, so more often than not the following recommendations can`t be followed
to the letter. Still, our advice is to stick as close as possible to the guidelines below.
Surround sound speakers should be placed one each side of your listening position at
approximately ear height or higher. It is also common to place them behind the listening position
each side of the room at ear height or higher. Both positions will give you excellent results but it is
worthwhile to note that the film has been recorded assuming the sound will come from the sides.
CARING FOR YOUR SPEAKERS
Periodically wipe the cabinets and grills with a damp cloth using a mild detergent.
Vacuum the grill with the brush attachment on the vacuum cleaner from time to time.
If the speakers are located in a salt prone area, you can further protect the grills, bracket and
terminals by spraying them with silicone regularly.
Never use more than a small adjustment on your tone controls especially at high volumes.
Turn down the volume when changing a record or switching from one source to another.
Whenever changing wires, plugs, etc always turn all equipment off.
When you get your speakers check that they have not been damaged in transit. Please keep
the original cartons in case of future need, they fold flat and take little space.
Don`t push in the diaphragms with any force.
Do not expose the diaphragms to direct sunlight.
Do not spray a hose directly at the front of the speaker.
Don`t use solvents to clean any part of the speaker.
Consult with your Hi Fi specialist before connecting more than one speaker to each output of
your amplifier.
Never connect your speakers to the electricity mains.
Tampering with the internal parts of the speaker may cause damage not covered by
warranty.
If a part fails, insist on a genuine replacement.
Do not put your ears too close to the speakers or play them too loud for extended periods of
time, as this may cause partial hearing loss.
THINGS TO BE CAREFUL OF
SPECIFICATIONS
Specifications:
Frequency Response
Recommended Amplifier Power
Sensitivity
Nominal Impedance
Crossover Frequency
Tweeter
Woofer
Cabinet Dimensions
Enclosure Finish
Weight
SAT - 60
90Hz - 20Hz 3db (Free Field)
20 - 100 watts Per Channel Undistorted
87 db
8 ohms
5 kHz
13 mm Dome
146 mm Carbon Impregnated Polypropylene Cone
245mm H x 160mm W x 130mm D
White or Black
2 kgs
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Aaron SAT-60 Operating instructions

Type
Operating instructions

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