Haut-parleur Beyma 8P300Fe
[8P300FE-8] Avis/Critiques Key Features :
600 W program power
Sensitivity: 95,4 dB @ 2,83 V @ 1 m
Extended controlled displacement: Xmax ± 6 mm
Extended mechanical displacement capability: Xdamage ± 24 mm
Designed with MMSS technology for high control, symmetry and linearity
Demodulating ring for low harmonic distortion
CONEX spider for higher resistance and consistency
Waterproof carbon fiber loaded paper cone with SantopreneTM surround
Ferrite magnet
Technical specifications :
Nominal diameter 200 mm 8 in
Rated impedance 8 ohm
Minimum impedance 6,7 ohm
Power capacity* 300 WAES
Program power 600 W
Sensitivity 95,4 dB 2.83v @ 1m @ 2p
Frequency range 50 - 8000 Hz
Recom. enclosure vol. 10 / 30 l 0,35 / 1,06 ft3
Voice coil diameter 63,5 mm 2,5 in
Magnetic assembly weight 3 kg 6,61 lb
BL factor 11 N/A
Moving mass 0.022 kg
Voice coil length 15 mm
Air gap height 7 mm
Xdamage (peak to peak) 24 mm
Thiele and Small Parameters** :
Resonant frequency, fs 61 Hz
D.C. Voice coil resistance, Re 5,2 ohm
Mechanical Quality Factor, Qms 9,54
Electrical Quality Factor, Qes 0,34
Total Quality Factor, Qts 0,33
Equivalent Air Volume to Cms, Vas 21,49 l
Mechanical Compliance, Cms 318 μm / N
Mechanical Resistance, Rms 0,85 kg / s
Efficiency, N0 1,39 %
Effective Surface Area, Sd 0.022 m2
Maximum Displacement, Xmax *** 6 mm
Displacement Volume, Vd 100 m3
Voice Coil Inductance, Le @ 1 kHz 0,8 mH
Mounting information :
Overall diameter 211,5 mm 8,33 in
Bolt circle diameter 198,3 mm 7,81 in
Baffle cutout diameter:
- Front mount 179,5 mm 7,07 in
- Rear mount 182,5 mm 7,19 in
Depth 97,5 mm 3,84 in
Volume displaced by driver 2 l 1,5 l 0,056 ft3
Net weight 4,03 kg 8,88 lb
Shipping weight 4,23 kg 9,32 lb
Frequency Response and Distorsion :
Free Air Impedance :
Notes :
* The power capaticty is determined according to AES2-1984 (r2003) standard. Program power is defined as the transducer’s ability to handle normal music program material.
** T-S parameters are measured after an exercise period using a preconditioning power test.
The measurements are carried out with a velocity-current laser transducer and will reflect the long term parameters (once the loudspeaker has been working for a short period of time).
*** The Xmax is calculated as (Lvc - Hag)/2 + (Hag/3,5), where Lvc is the voice coil length and Hag is the air gap height.
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