18SW1600Nd - LO Electronics
18SW1600Nd
LOW FREQUENCY TRANSDUCER
SW1600Nd series
KEY FEA TURES
HELICEX
cooling technology
1600W AES power handling cap acity
High sensitivity: 97dB @ 2.83v
Low resonant frequency: 32 Hz
Extended controlled displacement: Xmax ± 10 mm
Massive mechanical displacement capability: Xpp 60mm
Exclusive NCR membrane (Neck Coupling Reinforcement)
Designed with MMSS technology
5” DUO double inner/outer voice coil winding
CONEX S pider with Die Cast Aluminum Ring
TECHNICAL
SPECIFICA
Nominal diameter
Rated impedance
Minimum impedance
Power capacity*
Program power
Sensitivity
Frequency range
Maximum recom. frequency
Recom. enclosure vol.
Voice coil diameter
Magnetic assembly weight
BL factor
Moving mass
Voice coil length
Air gap height
X damage (peak to peak)
THIELE-SMALL
DIMENSION DRA
TIONS
460mm. 18 in.
8 ohms
6.1 ohms
1600 w AES
3200 w
97 dB 2.83v @ 1m @ 2
π
25 - 1800 Hz
200 Hz.
80 / 200 l 2.8 / 7 ft. 3
126 mm. 5 in.
7.59 kg. 16.7 lb.
29 N / A
0.260 kg.
25 mm
14 mm
60 mm
P ARAMETERS**
Resonant frequency , fs
D.C. V oice coil resist ance, Re
Mechanical Quality Factor
, Qms
Electrical Quality Factor
, Qes
Total Quality Factor , Qt s
Equivalent Air V olume to Cms, V as
Mechanical Compliance, Cms
Mechanical Resistance, Rms
η η(%)
Efficiency , ηo
2
Effective Surface Area, Sd (m
)
Maximum Displacement, Xmax***
Displacement V olume, Vd
Voice Coil Induct ance, Le @ 1 kHz
32 Hz
5.5 ohms
11.74
0.34
0.33
205.7 l
µ µ/ N
94.3 µm
4.46 kg / s
1.93
0.1255 m 2
10 mm
1164 cm 3
3.1 mH
WINGS
18
O
462 +0
- .1
O
0.0
7
O
5
±0.2
438
O 162 ±0.25
O 413 ±0.5
•
•
•
•
•
•
•
•
•
•
194
+1
0
212 ±1
MOUNTING INFORMA
Overall diameter
Bolt circle diameter
Baffle cutout diameter:
- Front mount
- Rear mount
Depth
Volume displaced by driver
Net weight
Shipping weight
TION
462 mm. 18.19 in.
438 mm. 17.24 in.
413 mm. 16.26 in.
418 mm. 16.46 in.
212 mm. 8.35 in .
13 l. 0.46 ft. 33
11.4 kg. 25.1 lb.
13 kg. 28.6 lb.
Notes:
*The power capacity 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.
www.loelectronics.com
18SW1600Nd
LOW FREQUENCY TRANSDUCER
SW1600Nd series
POWER COMPRESSION LOSSES
FREE AIR IMPEDANCE CURVE
5.0
4.0
3.0
dB
2.0
1.0
0.0
700
850
1000
1150
Waes
1300
1450
Note: Power Compression Losses were calculated after 5 minutes period applying a pink noise
signal filtered between 25 and 200 Hz.
FREQUENCY
RESPONSE
AND DIST OR TION
Note: on axis frequency response measured with loudspeaker standing on infinite baffle in anechoic chamber, 1w @ 1m.
www.loelectronics.com
1600
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