Specifications are subject to change without notice
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INSTALLATION INSTRUCTIONS
AH SERIES LOUDSPEAKERS 8", 12", AND 15"
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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.
ATLAS 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.