Atlas Sound AH99-12ST - Manual (Page 10)

Specifications are subject to change without notice
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INSTALLATION INSTRUCTIONS
AH SERIES LOUDSPEAKERS
8", 12", AND 15"
10
AMPLIFIER CONSIDERATIONS
Consult your amplifi
er owner’s
manual to confi
rm power output at the rated impedance.
15" models: AH5040S, AH9040S, and AH6565S and other models used in 8 Ohm confi guration
Each model exhibits an 8 Ohm (nominal) impedance.
(x2)
AH models paralleled will present a 4 Ohm load to the amplifi
er.
(x3)
AH models paralleled will present a 2.66 Ohm load to the amplifi
er.
(x4)
AH models paralleled will present a 2 Ohm load to the amplifi
er.
AT
LAS SOUND speaker system specifi
cations list
RMS power
handling.
As a reference
peak power = RMS x 1.414
.
These ratings should be considered in selecting the best amplifi
er to power the speaker system.
For general use, amplifi
er output should match or exceed the
RMS rated power
of the speaker system:
(250 Watts for the 15" AH models, 200 Watts for the 12" models and 100 Watts for 8" models).
For increased headroom and dynamic reproduction, the amplifi
er’s output should match or exceed the
peak power
rating of the speaker system (354 Watts for the 15" AH models, 283 Watts for 12" models
and 141 Watts for 8" models).
In situations where experienced professionals are operating the speaker system with proper limiting
and frequency control devices inserted into the signal path and adjusted properly
, amplifi
er output may
meet,
but should not exceed 2x the RMS
power rating of the speaker system (500 Watts for the 15" AH
models, 400 Watts for 12" AH models, and 200 Watts for 8" AH models).
Utilizing the
Atlas Sound model CP700 power amplifi
er will allow you to easily match required power
ratings for most any installation. Visit
www.AtlasSound.com
for more details on this product.