Aaron D-200 Instructions Manual

Brand: Aaron

Model: D-200

Category: Audio amplifiers

Type: Instructions Manual

This manual is also suitable for

D-100

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.

DECOR

INSTRUCTIONS

Congratulations on choosing a pair of “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.

IT IS ABSOLUTELY VITAL YOU READ

THIS NEXT SECTION!

OTHERWISE IT COULD CAUSE YOU A

LOT OF NEEDLESS EXPENSE

TIMES WHEN YOUR SPEAKERS ARE AT MOST RISK FROM YOU.

1: 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.

2: 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.

3: 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.

4: 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.

5: After you have been to a loud concert or live gig. Once again your ears have become less sensitive.

6: When you are in a state of intoxication is another time when there is a temptation to turn the volume up with-

out 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.

CONNECTING YOUR SPEAKERS

• Depending on the model you have purchased 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,

simply unscrew the nuts and you will find under the nut a hole to push the wire into.

• 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 is more than 5M then the conductor diameter must be

greater than 1.5mm (18 Gauge) at no stage is it suitable to use wire diameter 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 ter-

minals 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, this could cause damage

to your amplifier.

• In the case where cable is already wired through the house or the cable has no markings contact

your Hi Fi specialist for advice.

CONNECTING THE D-200 & D-400

CENTRE CHANNEL

CENTRE CHANNEL WIRING INSTRUCTIONS

After you have connected the two lower terminals in the normal manner to the main left and right

amplifier outputs wire the centre channel as follows. The centre channel wiring process is the same

for the D-200 and D-400. If you refer to the diagram you will see that a twin cable is connected to the

top terminal of the speakers on both sides. Then at the back of the Amplifier these two cables are

then twisted together and connected to the amplifiers centre channel output. This results in the two

part centre channels being wired in parallel. Please note the combined impedance of the two centre

channel half’s is 6 ohms.

SPEAKER INPUT IMPEDANCE

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 rea-

sons. 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.

These wires can be connected to

the other center channel speaker input

instead of directly to the amplifier.

Note: Wires are

twisted together.

Left and Right Main channel

connections are done to the

lower terminals on the speakers.

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.

SURROUND SOUND

SPEAKER PLACEMENT

With an audio visual system, “centre channel” and “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 décor, 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.

With the combined centre channel and main speakers they will give you the best results if

they are placed equal distance on each side of the TV panel. The audio image will also further im-

prove if they are placed at some distance away from the panel. This is despite the fact that we offer

special covers to match the panel height with the expressed purpose of placing the speakers adja-

cent to the panel. Positioning the speakers directly next to the panel is a lifestyle decision that has

the sole benefit of enhancing your home environment without a huge negative affect on the surround

sound image quality.

Surround sound speakers should be placed one each side of your listening position at ap-

proximately 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 worth-

while to note that the software has been recorded assuming the surround sound will come from the

sides.

MOUNTING OPTIONS

On the back of the D-100 AND D-200 you will see two metal key holes. These can make your

installation very easy because all that is required are two screws on your wall. It is important though,

that you make sure the screws are fixed securely enough to hold the speakers weight.

Key Holes for

mounting on

wall screws.

Rubber Buffer

supplied but

not fixed on.

Optional mounting

brackets available

in 3 sizes to stand

the D-200 off the wall.

ATTACHING SPIKES

By attaching the supplied spikes to

speakers it can further enhance the

sound quality, especially if the floor

construction is not rigid or covered with

carpet.

Use spike and locknut in each cor-

ner to adjust the spike heights so the

speaker doesn’t wobble when on an

uneven floor.

If you wish to avoid scratching hard

surfaces use the supplied rubber buffers

to cover the spike bushes.

CARING FOR YOUR SPEAKERS

ROUTINE MAINTENANCE:

• Periodically wipe the cabinets with a damp cloth using a mild detergent or you may use a polish such as

Mr Sheen.

• Vacuum the grill cloth with the brush attachment of the vacuum cleaner from time to time.

• Vacuum the grill and lightly dust the speaker diaphragms with a clean paint brush.

• Every 2 years rotate the Woofer one screw hole.

THINGS TO BE CAREFUL OF

• 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.

• It is not advisable to place your speakers in a damp environment.

• 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.

• Beware! Cats love sharpening their claws on speaker cloth.

D-100 D-200 D-400

Frequency

Response

90Hz - 20KHz

(± 3db)

90Hz - 20KHz

(± 3db)

50Hz - 20KHz

(± 3db)

Recommended

Amplifier

Power

20 - 100W per

channel undistorted

20 - 100W per

channel undistorted

20 - 200W per

channel undistorted

Sensitivity

Ref 2.83V, 1M

86db 86db 86db

Nominal

Impedance

8 ohms

8 ohms (6 ohms

Combined Centre

Channel)

8 ohms (6 ohms

Combined Centre

Channel)

Tweeter

25mm Dome

Tweeter

2 x 25mm Dome

Tweeter

2 x 25mm Dome

Tweeter

Midrange 132mm Cone

Woofer

132mm

Pistonic Cone

2 x 132mm

Pistonic Cone

5 x 132mm

Pistonic Cone

Cabinet

Dimensions

270mmH

168mmW

95mmD

505mmH

168mmW

95mmD

1100mmH

180mmW

205mmD

Enclosure

Finish

Black with Gray or

Black Grill

Black with Gray or

Black Grill

Black with Gray or

Black Grill

Weight 2.4kg each 4.6kg each 14.5kg each

Aaron D-200 Instructions Manual

Brand: Aaron

Model: D-200

Category: Audio amplifiers

Type: Instructions Manual

This manual is also suitable for

D-100

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Aaron D-200 Instructions Manual

This manual is also suitable for

Aaron D-200 Instructions Manual

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