Atlantic Technology 2200 C Instruction Manual - Page 9

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Instruction Manual

Setting Levels

When setting up a complete home theater we strongly recommend that you

use a Sound Pressure Level (SPL) meter. As of this writing Radio Shack®

has one that's affordably priced (approximately $40-$60) that can be used

effectively.To use this meter,turn on your system,put the processor/receiver

in Test Mode and set its main volume control to 0dB (or a reasonably loud

level). Sit in the prime listening position, set the SPL meter to the 70dB

scale,slow response,and C weighting.Hold the meter with the microphone

pointed up,towards the ceiling and in front of you.Cycle the test tone from

speaker to speaker, setting each to the same level (usually75dB) using the

individual level settings available in the processor/receiver (please see the

instructions for your processor/receiver if you are unsure of how to access

the test signal or level controls).

IMPORTANT NOTE: The power recommendation for these speaker

systems assumes that you will not operate your ampliﬁer/receiver in

a way that produces distortion. Even rugged speakers like these can

be damaged by an ampliﬁer driven into audible distortion. The harsh

ampliﬁer distortion ("clipping") that occurs in this situation will even-

tually cause damage to the speaker system. This type of damage may

be cumulative and can build up over time, as the ampliﬁer is driven

into overload again and again. Such damage is easily identiﬁable

through examination of the damaged speaker's voice coil and is not

covered by the warranty.

These systems will play very loudly when provided with enough undistorted

power to do so.If necessary,consult your dealer or Atlantic Technology for

additional information.

Mounting

System 920,1200 and 2200 speakers can be mounted in different ways:

On Stands

Speaker stands are recommended to elevate the satellites to the

proper position for maximum performance.Many brands of quality speaker

stands have a slotted L-bracket that allows the speaker to be securely bolted

to the stand. Use the ¼" x 20 insert on the lower back of each speaker to

couple the stand directly to the speaker via a ¼"x 20 bolt.This connection

is recommended not only for better sound but for safety (especially if you

have little ones running around) The recommended stand height is approxi-

mately 30". See Figure 5.

To mount your speakers on a wall,we have supplied metal key-

On the Wall

hole brackets attached to the back of the cabinet.These speakers are heavy

and care must be used when hanging them.Be sure to use a strong screw to

drive into the wall,one whose head and shaft will ﬁt within properly the key-

hole opening and slot.Also be sure to drive the screw directly into a stud or

to use a mounting device (such a molly-bolt) that is capable of safely hold-

ing the speaker's weight. Never simply drive a nail or screw into sheet rock

or other wall materials,as the speakers are very heavy for their size.

The speakers' threaded inserts also allow them to be wall-mounted with

many of the popular after-market ball and socket-type wall mounts that

use ¼" x 20 threaded posts.

NOTE: Always consult a knowledgeable installer regarding the proper

mounting hardware to use with your speakers.

¼" x 20 insert

Speaker stand with

slotted L-bracket

¼" x 20 bolt

Mounting

Figure 5