SPECIFICATIONS
SP™ 218
Enclosure Materials & Finish:
Birch plywood with internal bracing
Dimensions (H x W x D):
Width: 21.625" / 549 mm
Depth: 29.625" / 752 mm
Height: 42.5 " / 1080 mm
Net Weight:
121.7 lbs. (55.3 kg)
Features
This loudspeaker system delivers high
output, low distortion bass from two
18" Pro Rider woofers mounted in a
vented enclosure. It is designed for
portability and includes handles, metal
grille, reinforced corners, a durable
carpet exterior, casters and rubber feet.
A pole mount is included for support of
a high-pass enclosure. A remarkable
reduction in weight has been made
possible by using top-quality birch
plywood construction instead of the
usual composite wood materials, even
though power handling has been
increased.
Frequency Response, 1 meter on-axis,
swept-sine in anechoic environment:
51 Hz to 300 Hz ( 3 dB)
Transducer Complement:
2 x 18" woofer, vented
1808-8 ALCP Pro Rider®
Usable Low Frequency Limit (-10dB
Box Tuning Frequency:
point):
43 Hz
40 Hz
Minimum Recommended Active
Crossover Frequency and Slope for Bi-
amping:
90 Hz at 18 dB/octave
High pass filter 35 to 40 Hz at
12 to 24 dB/octave is recommended
Power Handling:
1,200 Watts continuous
2,400 Watts program
4,800 Watts peak
Sound Pressure Level, 1 Watt, 1 meter
in anechoic environment:
99.0 dB SPL
Impedance ( Z ):
Parallel input:
nominal 4.0 Ω
minimum: 3.3 Ω
(2.00 V parallel input)
Maximum Sound Pressure Level
(1 meter):
130 dB SPL continuous
136 dB SPL peak
Dual-woofer input:
nominal 2 x 8.0 Ω
minimum: 2 x 6.6 Ω
Input Connections:
Radiation Angle measured at -6 dB
point of polar response:
Essentially omnidirectional
One four-pin Neutrik® Speakon®
non-switching jack
One four-pin Neutrik Speakon
switching jack
Two 1/4" jacks
SPECIFICATIONS
SP™ 218
Amplitude Response (1W 1m On-Axis)
Impedance
110
100
90
100
50
30
20
Z
(
)
10
5
80
3
2
70
60
1
20
50
100
200
500
1k
2k
5k
10k
20k
20
50
100
200
500
1k
2k
5k
10k
20k
Frequency (Hz)
Frequency (Hz)
Figure 1
Figure 2
Harmonic Distortion : 1% Rated Power
Harmonic Distortion : 10% Rated Power
120
110
100
90
130
120
110
100
90
80
70
80
60
70
50
20
60
20
50
100
200
500
1k
2k
5k
10k
20k
50
100
200
500
1k
2k
5k
10k
20k
Frequency (Hz)
Frequency (Hz)
2nd Harmonic
3rd Harmonic
2nd Harmonic
3rd Harmonic
Figure 3
Figure 4
SPECIFICATIONS
SP™ 218
SP 218 Input Plate
Features and specifications subject to change without notice.
©2004 Printed in the U.S.A. 5/04 80304989
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