AST-09
AST-09
COMPETITION
KEY FEATURES
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•
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High sensitivity (107 dB)
Extended frequency range (2.5 -22 KHz)
Aluminium diaphragm
Double ferrite magnet
Aluminium front cover
Designed for the high frequencies reproduction
TECHNICAL SPECIFICATIONS
Nominal impedance
Power handling / maximum
Sensitivity
Frequency range
Recommended crossover frequency
Resonant frequency, fs
Voice coil diameter
Diaphragm material
4 ohms
35 W RMS / 150 W
107 dB 1w @ 1m
2.5 - 22 kHz
5 kHz, 12 dB/oct.
6 kHz
25.8 mm. 1.02 in.
Aluminium
DIMENSION DRAWINGS
MOUNTING INFORMATION
Overall diameter
Depth
Baffle cutout dimensions
Bolt circle diameter
89
85
72
80
mm.
mm.
mm.
mm.
3.50
3.35
2.84
3.15
in.
in.
in.
in.
RECOMMENDED ATTENUATION
-3 dB attenuation
CERRADA
-6CAJA
dB attenuation
-9 dB attenuation
-12 dB attenuation
JA CERRADA
R1 (1.2 W) R2 (10 W)
R1 (2 W) R2 (4 W)
R1 (2.7 W) R2 (2.2 W)
R1 (3 W) R2 (1.2 W)
Note: these values are calculated for a 4 ohms load impedance.
Please do not forget to take into account the applied power when
choosing the resistors.
FREQUENCY RESPONSE
IMPEDANCE CURVE
Nota: on axis frequency response measured on anechoic chamber,
applying 1w@1m.
E.B. ACOUSTIC & ELECTRONIC RESEARCH
S.R.L.
Via S. Bartolomeo, 10 - 28047 OLEGGIO (NO) Italy Ph. 0039 0321 91430 - Fax 0039 0321 94411
056
Polígono
Industrial Moncada II · C/. Pont Sec, 1c · 46113 MONCADA - Valencia (Spain)
www.ebacoustic.it
·Tel. ( 34 ) 96 130 13 75 · Fax ( 34 ) 96 130 15 07 · http://www.beyma.com · E-mail:beyma@beyma.com·
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