Troubleshooting - Atlas AH99-8ST Instructions Manual

Specifications
8" Models Power Rating Frequency
Res. ±5dB
AH99-8ST 100 Watts 90Hz to 10kHz
AH94-8ST 100 Watts 90Hz to 10kHz
AH66-8ST 100 Watts 90Hz to 10kHz
12" Models Power Rating Frequency
Res. ±5Db
AH99-12ST 200 Watts 80Hz to 10kHz 126dB
AH94-12ST 200 Watts 80Hz to 10kHz 126dB
AH66-12ST 200 Watts 80Hz to 10kHz 125dB
15" Models Power Rating Frequency
Res. ±5Db
AH5040S 250 Watts 75Hz to 14.5kHz
AH6565S 250 Watts 75Hz to 14.5kHz
AH9040S 250 Watts 75Hz to 14.5kHz

Troubleshooting

PROBLEM POSSIBLE CAUSE
There is no sound Power off. Equipment setting is wrong.
Volume set too low.
Loose connection.
Low sound level Setting/volume control is set too low.
Connection is shorted or bad.
Sound cuts in and out System overload/oscillation intermittent
connection.
Distortion at increased levels Amplifier/speaker overdriven.
Speaker makes "buzzing" Hardware loose or speaker damaged.
noise
Call Atlas Sound tech support at 1-800-876-3333 with any additional questions.
1601 JACK MCKAY BLVD.
ENNIS, TEXAS 75119 U.S.A.
AH Series Loudspeakers
8", 12", and 15"
Sound Level Dispersion
RP/1M 1W/1M
121dB 101dB 90˚ H
90˚ V
121dB 101dB 90˚ H
40˚ V
120dB 100dB 65˚ H
65˚ V
Sound Level Dispersion
RP/1M 1W/1M
103dB 90˚ H
90˚ V
103dB 90˚ H
40˚ V
102dB 65˚ H
65˚ V
Sound Level
RP/1M 1W/1M
127dB 104dB
126dB 102dB
126.5dB 102.5dB
Impedance Xfmr Taps
8Ω Nominal 3.8, 7.5, 15,
30, and 60
Watts
8Ω Nominal 3.8, 7.5, 15,
30, and 60
Watts
8Ω Nominal 3.8, 7.5, 15,
30, and 60
Watts
Impedance Xfmr Taps
8Ω Nominal 3.8, 7.5, 15,
30, and 60
Watts
8Ω Nominal 3.8, 7.5, 15,
30, and 60
Watts
8Ω Nominal 3.8, 7.5, 15,
30, and 60
Watts
Dispersion Impedance Dimensions
50˚ H 8Ω Nominal 20.5" (521mm) D
40˚ V 20.5" (521mm) W
32" (813mm) H
65˚ H 8Ω Nominal 20.5" (521mm) D
65˚ V 20.5" (521mm) W
32" (813mm) H
90˚ H 8Ω Nominal 22.5" (572mm) D
40˚ V 30" (762mm) W
31" (787mm) H
REMEDY
Assure that power is applied to all equipment in system. Check that routing (input/
output) controls are set correctly. Check that volume level is above minimum.
Check system from start to finish for crossed wires, loose connection, etc. On the AH
location check for correct connection.
Check volume levels or amplifiers and related equipment (equalizer). Check that
connections aren't partially shorted/corroded.
Check for overload condition or bad connection.
Check that power to speaker isn't over limits. Check that amplifier isn't overdriven.
Reduce power to amplifier slightly.
Make sure speaker grille is tight. Check other hardware connections. Check speakers
for loose parts or speaker damage.
TELEPHONE: (800) 876-3333
FAX (800) 765-3435
Dimensions Weight
23.86" (606mm) D 65 lbs
21.41" (544mm) W (24.5 kg)
21.25" (540mm) H
21.83" (554mm) D 63 lbs
19.66" (499mm) W (28.6 kg)
18.41" (468mm) H
20.91" (531mm) D 61 lbs
17.91" (455mm) W (27.7 kg)
19.66" (499mm) H
Dimensions Weight
25.65" (652mm) D 87 lbs
22.06" (560mm) W (39.5 kg)
21.25" (540mm) H
25.65" (652mm) D 85 lbs
22.06" (560mm) W (38.6 kg)
21.25" (540mm) H
23.86" (606mm) D 82 lbs
21.41" (544mm) W (37.2 kg)
21.25" (540mm) H
Weight
87 lbs
(39.5 kg)
87 lbs
(89.5 kg)
100 lbs
(45.4 kg)
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