Профессиональный сабвуферный динамик BEYMA 21PW1400Fe. Инструкция на английском языке

21PW1400/Fe
LOW FREQUENCY TRANSDUCER
www.beyma.com                                                                             PW Series
KEY FEATURES
?  High power handling: 1400 W AES
?  Malt Cross ®  Cooling System
?  Low power compression looses
?  High sensitivity: 98,5 dB
?  FEA optimized ferrite magnetic circuit
?  Designed with MMSS technology for high control, linearity and
low harmonic distortion
?  Optimized nonlinear parameters
?  Waterproof cone with treatment for both sides of the cone
?  4” DUO double layer inner/outer voice coil
?  Aluminium demodulating ring
?  Extended controlled displacement: X max  ± 10 mm
?  Massive mechanical displacement capability: X damage  ± 55 mm  DIMENSION DRAWINGS
TECHNICAL SPECIFICATIONS
Nominal diameter                    540 mm      21 in
Rated impedance                                8 ?
Minimum impedance                             5,4 ?
Power capacity*                         1.400 W AES
Program power                              2.800 W
Sensitivity                    98,5 dB   @ 1W @ Z N
Frequency range                       25 - 1.800 Hz
Recom. enclosure vol.       100 / 250 l     3,5 / 8,75 ft 3
Voice coil diameter               100 mm          4 in
Magnetic assembly weight           14,4 kg     31,8 lb
Bl factor                                  28,2 N/A
Moving mass                                0,298 kg
Voice coil length                           25 mm
Air gap height                              12 mm                MOUNTING INFORMATION
X damage  (peak to peak)                    55 mm
Overall diameter                550 mm      21,65 in
Bolt circle diameter            526 mm      20,71 in
Baffle cutout diameter:
THIELE-SMALL PARAMETERS**
- Front mount                  494 mm      19,45 in
- Rear mount                   511 mm      20,12 in
Resonant frequency, f s                      30 Hz           Depth                           242 mm        9,53 in
D.C. Voice coil resistance, R e               5,2 ?          Volume displaced by driver          20 l        0,71 ft 3
Mechanical Quality Factor, Q ms                7,44          Net weight                       19,9 kg      43,87 lb
Electrical Quality Factor, Q es                0,36          Shipping weight                  22,6 kg        50,0 lb
Total Quality Factor, Q ts                     0,34
Equivalent Air Volume to C ms , V as         401,5 l
Notes:
Mechanical Compliance, C ms               94 µm / N
Mechanical Resistance, R ms              7,51 kg / s         *  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.
Efficiency, ? 0                             2,83 %           ** T-S parameters are measured after an exercise period using a preconditioning power test.
Effective Surface Area, S d               0,1734 m 2         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).
Maximum Displacement, X max  ***             10 mm           *** The X max  is calculated as (L vc  - H ag )/2 + (H ag /3,5), where L vc  is the voice coil length and
Displacement Volume, V d                  1.729 cm 3         H ag  is the air gap height.
Voice Coil Inductance, L e                  1,3 mH

21PW1400/Fe
LOW FREQUENCY TRANSDUCER
www.beyma.com                                                                             PW Series
LOW & MID FREQUENCY TRANSDUCER
FREE AIR IMPEDANCE CURVE                                 POWER COMPRESSION LOSSES
[?]                                                       [dB]
[Power]
[Hz]
Note: Power compression losses were calculated after 5 minutes
period applying a pink noise signal filtered between 25 and 200 Hz.
FREQUENCY RESPONSE AND DISTORTION
[dB]
[Hz]
Note: On axis frequency response measured with loudspeaker
standing on infinite baffle in anechoic chamber, 1W @ 1m
Poligono Industrial Moncada II ? C/. Pont Sec, 1c ? 46113 MONCADA - Valencia (Spain)
? Tel.: (34) 96 130 13 75 ? Fax: (34) 96 130 15 07 ? http://www.beyma.com ? E-mail: beyma@beyma.com ?
09/12