Peavey Electronics Speaker Qw 118 Users Manual Ss1

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SPECIFICATIONS

QW™-118

Transducer complement:
1 x 18" individually vented
Low Rider™ 18" Sub
Box tuning frequency:
36 Hz
Recommended active crossover
frequency region and slope:
150 Hz at 18 dB/octave
Impedance (Z):
Nominal:
Minimum:

8.0 Ω
7.3 Ω

Input connections:
2 x 4-pin Neutrik® Speakon® inputs
in parallel
1 x 8-pin Neutrik Speakon input
1 x 4-pin Neutrik Speakon thru (for
use with 8-pin input)
Enclosure materials and finish:
3/4" plywood finished in the
durable Black Hammer-Head™
polyurethane coating
Mounting provisions:
This unit is not designed for overhead suspension
Dimensions (H x W x D):
Front:
28.38" x 21.00" x 26.75"
721 mm x 533 mm x 679.45 mm
Net weight:
85 lbs. (38.7 kg)

Frequency response, 1 meter on-axis,
swept-sine in anechoic environment:
Anechoic: 47 Hz – 1.5 kHz (±3 dB)
Half-space: 40 Hz 1.5 kHz (±3 dB)

Sound pressure level, 1 Watt,
1 meter in anechoic environment:
Anechoic: 97 dB SPL, (2.83 V input)
Half-space: 103 dB SPL

Usable low frequency limit
(-10 dB point):
Anechoinc: 34 Hz
Half-space: 30 Hz

Maximum sound pressure level
(1 meter):
Anechoic
126 dB SPL continuous
132 dB SPL peak
Half-space:
132 dB SPL continuous
138 dB SPL peak

Power handling:
800 W continuous
1,600 W program
3,200 W peak

Features
• New Peavey Low Rider 18"
Subwoofer
• 1,600 Watts of program power
• Extreme low frequency response
down to 30 Hz (half-space)
• Neutrik Speakon professional
input connectors
• Very compact design
• Speaker stand mount built in
• Black Hammer-Head™
Polyurethane coating

Listen To This™

SPECIFICATIONS
Description
The QW™-118 incorporates one of the new
extra-high power Low Rider™ 18" woofers
and a new compact cabinet design. The
QW-118 is a direct radiator subwoofer
designed specifically for the high end proaudio user.
The new Low Rider 18" driver is a
milestone in high-power subwoofer
design. An incredible 1,600 Watt program
rating and extra-long cone excursion come
together to produce amazing new levels of
clean, deep bass. This makes the QW-118
a superior choice for the bottom end of
any high powered sound system.
The QW-118 is unusually compact for its
power handling, SPL output, distortion
performance and bass extension. This is
made possible by special characteristics
designed into the Low Rider woofer.
The QW-118 is well braced and very stiff,
as internal pressures produced by the Low
Rider woofer can be very high. The vent
design integrated into the enclosure
includes a vertical brace to further
increase enclosure stiffness.
The QW-118 vent’s large area and long
path length allow for a large volume of air
to move with very low resistance. This is
important due to the massive air flow
volumes that the Low Rider woofer can
produce.
The QW-118 is constructed of premium
.720" plywood and is covered with a
tough, durable black Hammer-Head
polyurethane coating, making this system
rugged and extremely roadworthy. A 16gauge, powder-coated, perforated metal
grille covers the front of the system to
protect the speakers from external
damage.

QW™-118
Input connection to the system is made
via two four-pin Neutrik jacks in parallel,
an eight-pin Neutrik, and a four-pin
Neutrik® thru jack is provided for biamping flexibility while maintaining
superior signal integrity. The inclusion of a
standard four-pin Neutrik jack in parallel
allows for daisy chaining to another
cabinet when bi-amping.
Despite its compact dimensions for a
single 18" bass enclosure, this system can
produce some extremely serious sound.
Frequency response
This measurement is useful in determining
how accurately a given unit reproduces an
input signal. The frequency response of
the QW-118 is measured at a distance of 1
meter using a 1 Watt (into the nominal
impedance) swept-sine input signal. As
shown in Figure 1, the selected drivers in
the QW-118 combine to give a smooth
frequency response from 47 Hz to 1.5 kHz.
Power handling
There are many different approaches to
power handling ratings. Peavey rates this
loudspeaker system’s power handling
using a modified form of the AES Standard
2-1984. Using audio band 40 Hz to 400 Hz
pink noise with peaks of four times the
RMS level, this strenuous test signal
assures the user that every portion of this
system can withstand today’s high
technology music. This rating is contingent
upon having a minimum of 3 dB of
amplifier headroom available.
Harmonic distortion
Second and third harmonic distortions vs.
frequency are plotted in Figures 3 and 4
for two power levels. Ten percent (10%) of
rated input power and either one percent
(1%) of rated input power or one watt,
whichever is greater. Distortion is read
from the graph as the difference between

the fundamental signal (frequency
response) and the desired harmonic. As an
example, a distortion curve that is down
40 dB from the fundamental is equivalent
to 1% distortion.
Architectural and engineering
specifications
The loudspeaker system shall have an
operating bandwidth of 47 Hz – 1.5 kHz.
The nominal output level shall be 97 dB
when measured at a distance of one meter
with an input of one watt. The nominal
impedance shall be 8 Ohms. The
maximum continuous power handling
shall be 800 Watts, maximum program
power of 1,600 Watts and a peak power
input of at least 3200 Watts, with a
minimum amplifier headroom of 3 dB. The
outside dimensions shall be 28.38" high
by 21.00" wide by 26.75" deep. The
weight shall be 85 pounds. The
loudspeaker system shall be a model
QW-118.
3 + 2 YEAR LIMITED WARRANTY
NOTE: For details, refer to the
warranty statement. Copies of
this statement may be obtained
by contacting Peavey Electronics
Corporation, P.O. Box 2898, Meridian,
Mississippi 39301-2898.

QW™-118

SPECIFICATIONS

Amplitude Response (1W 1m On-Axis)
dB SPL (re 20 Pa)

110
Measured in half space
Measured in anechoic

100
90
80
70
60
20

50

100

200

Figure 1 Q-Wave 118

500
1k
Frequency (Hz)

2k

5k

10k

20k

2k

5k

10k

20k

Impedance
100
50
30
20

Z
( ) 10
5
3
2
1
20

50

100

Figure 2 Q-Wave 118

200

500
1k
Frequency (Hz)

QW™-118

SPECIFICATIONS

Harmonic Distortion : 10% Rated Power
120

dB SPL (re 20 Pa)

110
100
90
80
70
60
50
20

50

100

200

500
1k
Frequency (Hz)

2k

5k

10k

20k

2nd Harmonic
3rd Harmonic

Figure 3 Q-Wave 118

Harmonic Distortion : 1% Rated Power
110

dB SPL (re 20 Pa)

100
90
80
70
60
50
40
20

50

100

Figure 4 Q-Wave 118

200

500
1k
Frequency (Hz)

2k

5k

10k

2nd Harmonic
3rd Harmonic

80304914

Features and specifications subject to change without notice.
Peavey Electronics Corporation • 711 A Street • Meridian, MS 39301 • (601) 483-5365 • FAX (601) 486-1278 • www.peavey.com
©2002 Printed in the U.S.A. 12/02

20k



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