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Atlantic Technology 8200 System Buku Petunjuk

Remote Control Functions

Satellite Level Setting Using an SPL Meter

When setting up a complete home theater we strongly recommend that

you use a Sound Pressure Level meter to calibrate the individual channel

levels.At the time of this writing Radio Shack® has one that is affordably

priced (approximately $40) and works well. However, for the best result

in setting up the levels and the parametric EQ you would be much better

served by using a true audio test instrument with a Real Time Acoustic

Analyzer (RTA) such as the Sencore® SP 295.

To calibrate channel levels using an SPL meter,turn on your system,put

the Processor/Receiver in the Test Mode and set its main volume con-

trol to a moderate volume level. If the volume control has a 0dB setting

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with minus dB below and plus dB above 0, set the control to 0dB. Sit in

N N O V A T I V E

O M E

H E A T E R

the prime listening position, set the SPL meter to the 70dB scale, Slow

Response, and C Weighting. Holding the meter in front of you with the

microphone pointed up at the ceiling,cycle the test tone from speaker to

speaker, setting every speaker (including the subwoofer) to 75dB using

the individual channel level adjustments in the Processor/Receiver. In

some cases, you may have to use the Processor/Receiver's main volume

control to get the first speaker you set (typically the left front) to 75 dB,

but from then on use the receiver's internal level adjustments to set each

channel.These may only be accessible through the Processor/Receiver's

remote control.

As tempting as it may be to set the subwoofer and/or surround speakers

higher than 75dB, don't. Set them to 75dB and see if you can acclimate

to the sound as the film maker created it. Try watching several different

movies and keep in mind that the goal is to have a system that sounds

like you're actually in the movie.Just like in a well set up movie theater,in

most cases,you shouldn't be consciously aware of the surround speaker's

output at all, much less have so much bass that your furniture moves

across the room.

When using the latest discrete digital electronics we recommend setting

the subwoofer amplifier's BASS LEVEL control to its THX/REF posi-

tion and using the Processor/Receiver's built-in subwoofer level control.

Should you have difficulty achieving the correct subwoofer volume this

way or should your Processor/Receiver not have a subwoofer level adjust-

ment built in,you can use the subwoofer amplifier's main BASS LEVEL

control to make this adjustment.

Level Setting Without an SPL Meter

If you cannot use an SPL meter to calibrate the system try to set all the

speaker volumes to the same level using the Test Tones. Of course, this

will be much more difficult without the meter, especially for the sub-

woofer.

Setting the Subwoofer Level Without an SPL

Meter or Test Tones

Start your listening with the subwoofer LOW PASS control set at the cor-

rect crossover point (or in the THX/EXT position if you're using a THX

Certified processor or unit with a built-in crossover). Set the PHASE

control to 0

, and the front panel BASS LEVEL control to the THX/REF

position as shown to the left.

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start to hear the subwoofer working. Now, from your normal listening

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position,determine whether the subwoofer is playing loudly enough and

filling in the bass frequencies of the music evenly.If adjustment is neces-

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sary, change the processor's setting or use the front panel BASS LEVEL

control if your processor lacks a subwoofer level adjustment.

How Much is Enough?

Sometimes people prefer more bass impact for movies than sounds

natural when reproducing music. The PedWoofer amplifier offers 4 EQ

settings plus the LEVEL TRIM to help maximize your enjoyment of dif-

ferent source material. Remember however, the most common error

people make when setting up their system is to play the subwoofer (and

surrounds) too loudly.Although the Home Theater Police will not arrest

you for this act,should you desire the most accurate overall reproduction,

a well-balanced sound from deepest bass to highest treble is the best way

to get it.Have fun.Experiment.Enjoy.

Remote Control Functions

There are 4 custom EQ settings that have been programmed into the Ped-

Woofer amplifier (see graphs on back cover).These have been chosen to

enhance your enjoyment of both movies and music. These EQ settings

are fairly subtle in their effect, as we wanted to make them truly useful

with a wide selection of software.They can be accessed by pressing one

of the four EQ buttons on your Remote Control.

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as well. EQ1 can also be used to remove some overall bass boominess

when playing particularly bass heavy material.

EQ2 - This EQ was programmed to enhance the impact and punch of

special effects.It increases the bass output centered at 60Hz.Depending

upon the source material, EQ2 could also be used to add some warmth

to a bass shy music recording.

EQ3 - Another choice primarily intended to enhance movie and video

soundtracks. This one uses a more subtle increase of bass output cen-

tered at 80HZ with the addition of a very low frequency (subsonic) filter.

This gives you the option of punching up the mid-bass while at the same

time reducing the possibility of overdriving the woofers with extreme

low frequencies.

8200/6200 Pedestal Subwoofer System

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EQ1 - This EQ was primar-

ily designed to enhance music. It

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reduces midbass frequencies by a

small, but noticeable amount. You

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will find that on many music sources

this will make the bass sound tighter

and more defined. It should make

individual bass notes easier to hear

Play some music that

you know has good

bass content, and

turn the Processor/

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Receiver's level con-

trol up until you just

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SA-700

Servo Controlled

Subwoofer Amplifier