18WRS600 Preliminar.ai
18WRS600
LOW FREQUENCY TRANSDUCER
www.beyma.com
Preliminary Data Sheet
KEY FEATURES
● Low distortion 18” subwoofer
● Optimized non-linear behaviour
● Power handling 1.200 W program power
● Exclusive Malt Cross® Technology Cooling System
● Weather resistant cone with treatment on both sides
● High sensitivity: 98 dB (1W / 1m)
● Optimized pressed steel frame
● FEA optimized ferrite magnetic circuit
● Extended controlled displacement: Xmax ± 8,5 mm
● Ultra low air noise
● 53 mm peak-to-peak excursion before damage
● Designed with MMSS technology
● Optimized for direct radiation subwoofer applications
TECHNICAL SPECIFICATIONS
Nominal diameter
Rated impedance
Minimum impedance
Power capacity*
Program power
Sensitivity
Frequency range
Voice coil diameter
Bl factor
Moving mass
Voice coil length
Air gap height
Xdamage (peak to peak)
460 mm
18 in
8Ω
6,4 Ω
600 WAES
1.200 W
98 dB 1W / 1m @ ZN
35 - 1.000 Hz
76,2 mm
3 in
19 N/A
0,147 kg
21,5 mm
9,5 mm
53 mm
● 3” copper voice coil
THIELE-SMALL PARAMETERS**
Resonant frequency, fs
D.C. Voice coil resistance, Re
Mechanical Quality Factor, Qms
Electrical Quality Factor, Qes
Total Quality Factor, Qts
Equivalent Air Volume to Cms, Vas
Mechanical Compliance, Cms
Mechanical Resistance, Rms
Efficiency, η0
Effective Surface Area, Sd
Maximum Displacement, Xmax ***
Displacement Volume, Vd
Voice Coil Inductance, Le @ 1 kHz
32 Hz
5,4 Ω
4,8
0,44
0,40
372 l
167 µm / N
6,1 kg / s
2,7 %
0,1255 m2
8,5 mm
1130 cm3
1,5 mH
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.
Acústica Beyma SL - P.I. Moncada II, C/ Pont Sec, 1C - 46113 Moncada, Valencia (Spain) - Tel. +34 96 130 13 75 - beyma@beyma.com
18WRS600
LOW FREQUENCY TRANSDUCER
www.beyma.com
]Ω[
[dB]
Preliminary Data Sheet
[Hz]
Note: On axis frequency response measured with loudspeaker
standing on infinite baffle in anechoic chamber, 1W @ 1m
MOUNTING INFORMATION
DIMENSION DRAWING
457 mm
17,99 in
437,5 mm
17,22 in
- Front mount
425 mm
16,73 in
Depth
218 mm
8,58 in
Net weight
8,7 kg
19,2 lb
Shipping weight
10 kg
22 lb
Overall diameter
Bolt circle diameter
Baffle cutout diameter:
Acústica Beyma SL - P.I. Moncada II, C/ Pont Sec, 1C - 46113 Moncada, Valencia (Spain) - Tel. +34 96 130 13 75 - beyma@beyma.com
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