PHL Audio B20 - Manual (Page 2)

2420
TYPICAL CHARACTERISTICS
Rated impedance Z 8 Ω
Reference efficiency (1 W@1 m) - 94 dB SPL
Usable frequency range 1 - 70-3000 Hz
Power handling capacity 2 (AES) 200 W
Max Sound Pressure Level 3 SPLmax 113 dB SPL
Min. impedance modulus Zmin 5.6 @ 370Hz Ω
Voice-coil inductance 4 @ 1 kHz Le1k 0.85 mH
@ 10 kHz Le10k 0.46 mH
Bl product BL 12.9 N/A
Moving mass Mms 0.025 Kg
THIELE-SMALL PARAMETERS : TYPICAL (QC LIMITS)
Resonance frequency 5 Fs 72(±10) Hz
DC resistance 6 Re 5.4 (±0.6) Ω
Mechanical quality factor Qms 4.5 1
Electrical quality factor Qes 0.37 1
Total quality factor Qts 0.34 1
Mechanical suspension compliance Cms 200 10 -6 m/N
Effective piston area Sd 0.0219 m 2
Equivalent Cas air load Vas 0.0130 m 3
Max. linear excursion Xmax ±5.0 mm
Linear displacement volume Vd 0.110 10 -3 m 3
Half-space efficiency 1.3 %
Unity load volume Vas Qts 2 1.5 10 -3 m 3
ABSOLUTE MAXIMUM RATINGS
Short term max. input voltage 7 Vmax 80 V
Max. excursion before damage Xdam ±10 mm
Ambient operating temperature –10 to +50 °C
Storage temperature 8 –20 to +70 °C
Environmental conditions 9 Outdoor
APPLICATION INFORMATION
Air volume occupied by the driver 10 0.720 10 -3 m 3
Speaker net mass 3.020 Kg
Recommended reflex box Vb/Fb 15 / 70 L / Hz
Electrical polarity A positive voltage applied on the red terminal
produces forward cone motion.
SPECIFICATION NOTES
Note 1 : Allowing for energy response, excursion
capability, Power spectrum, and -3dB low
freq. roll-off for standard reflex tuning.
Note 2 : Established at 20°C ambient temp, according to
AES2-1984 standard using IEC268-1 simulated
programme signal and a 15 liter Bass-Reflex test
enclosure tuned at 70Hz.
Note 3 : Established at 1m on axis of the loudspeaker mounted
in test enclosure, when driven at full AES Power
Handling Capacity, including 4dB of thermal
compression loss.
Note 4 : Measured at 20 mA in free air.
Note 5 : Measured at 20 mA and 20°C ambient temp.
in free air conditions, after full run and rest.
Note 6 : Measured at 20°C ambient temp.
QC limits are ±10 %
Note 7 : Stated in RMS voltage according to IEC 268-5.
Note 8 : Includes shipping conditions. The lower limit prevents
from demagnetization.
Note 9: Our products are classified in three categories :
Indoor, Outdoor, and Outdoor ✚ for permanent
outdoor use or severe conditions.
Note 10 : Calculated for front mounting on to a 18 mm thick
board.
PHL Audio S.A. provides these specifications as representative of current production after conditioning. Because of our continuous research, they are subject to change without notice.
461, rue des chênes
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Z.A
7 7 5 9 0 C H A R T R E T T E S
FRANCE
T é l : 33 01 64 81 29 80
Fax : 33 01 60 69 10 28
e-mail : [email protected]
http: //www.phlaudio.com
2420
8
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20 cm Bass Midrange Driver