18P1000Fe - Audiofanzine
18P1000Fe
LOW FREQUENCY TRANSDUCER
KEY FEATURES
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Real 1000 w AES power handling
Sensitivity: 98dB @ 2.83v
Large Xmax allowing longer voice coil displacements
Designed for subwoofer applications that require extra power
handling.
TECHNICAL SPECIFICATIONS
Nominal diameter
Rated impedance
Minimum impedance
Power capacity*
Program power
Sensitivity
Frequency range
Recom. enclosure vol.
Voice coil diameter
Magnetic assembly weight
BL factor
Moving mass
Voice coil length
Air gap height
X damage (peak to peak)
460 mm. 18 in.
8 ohms
6.2 ohms
1000 w AES
2000 w
98 dB 2.83v @ 1m @ 2p
25 - 2000 Hz
80 / 200 l 2.8 / 7 ft.3
100 mm. 4 in.
10.8 kg. 23.76 lb.
26 N / A
0.215 kg.
21 mm
12 mm
52 mm
DIMENSION DRAWINGS
MOUNTING INFORMATION
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, ho (%)
Effective Surface Area, Sd (m2)
Maximum Displacement, Xmax***
Displacement Volume, Vd
Voice Coil Inductance, Le @ 1 kHz
40 Hz
5.1 ohms
15.11
0.40
0.39
163.2 l
75 mm / N
3.61 kg / s
2.5
0.1250 m2
8 mm
1000 cm3
2.8 mH
Overall diameter
Bolt circle diameter
Baffle cutout diameter:
- Front mount
- Rear mount
Depth
Volume displaced by driver
Net weight
Shipping weight
462 mm. 18.19 in.
438 mm. 17.24 in.
413 mm.
400 mm.
203 mm.
13 l
12.9 kg.
14.4 kg.
16.26 in.
15.75 in.
7.99 in.
0.46 ft.3
28.38 lb.
31.68 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 Xmax is calculated as (Lvc - Hag)/2 + Hag/3.5, where Lvc is the voice coil length and Hag is the air gap height.
Note: on axis frequency response measured with loudspeaker standing on infinite baffle in anechoic
chamber, 1w @ 1m.
FREE AIR IMPEDANCE CURVE
108
FREQUENCY RESPONSE AND DISTORTION
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