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Professional speaker 

ARA-312-00/8

The ARA-312-00 is a direct-radiating electrodynamic mid-bass loudspeaker. It is best suited in professional systems as upper-bass unit and as guitar and keyboard speaker

ACOUSTICAL DATA
Rated noise power 1) 150  W
Short term maximum power 2) 350  W
Rated impedance Ohm
Resonance frequency Fs 4) 50.0   Hz
Rated frequency range 80 - 5000  Hz
Sensitivity 3) 95  dB
 
TS PARAMETERS
Acquired by MLSSA D-0-10  
Effective piston area Sd 503  cm2
DC resistance of voice coil Re 6.3  Ohm
Mechanical Q factor Qms 3.09 
Electrical Q factor Qes 0.55 
Total Q factor Qts 0.47 
Voice coil inductance Le 1.6 
Equivalent volume Vas 110.9  l
Moving mass (including air load) Mms 40.2  g
Suspension compliance Cms 312  uM/Newton
Force factor Bl 11.4  Tm
Maximum linear displacement Xmax 5) 3.5  mm
 
MECHANICAL DATA
Voice coil carrier material aluminium 
Voice coil diameter 51.7  mm
Winding height of voice coil 10  mm
Yoke diameter 50.8  mm
Air gap height mm
Magnet external diameter 140  mm
Magnet internal diameter 63  mm
Magnet height 17  mm
Compensating magnet external diameter mm
Compensating magnet internal diameter mm
Compensating magnet height mm
Weight 4.5  kg
 
TEST CONDITIONS
Sweep voltage 11  V
Frequency range 40 - 5000  Hz
 
1) ČSN IEC 268-5, closed box 50 dm3.
2) ČSN IEC 268-5, closed box 50 dm3.
3) ČSN IEC 268-5, standard baffle, 1 W, 1 m, 200 - 5 000 Hz
4) ±15 Hz
5) Peak - peak 
Frequency response
Impedance Magnitude - Ohms
Drawing
 
Counter: 43556