HIGH PERFORMANCE
SUBWOOFERS
MODELS PSW-10D AND PSW-12D
OWNERS MANUAL
Congratulations on your purchase of the
Subwoofer. The
Prestige
Subwoofers are designed to provide you with high
Prestige
High Performance
quality Bass reproduction required to make your car audio system perform to
its full potential.
PRESTIGE
l Dual 4-Ohm voice coil for maximum flexibility and performance
l Low-Q parameters for Isobaric and small sealed box enclosures
l Vented magnet for improved performance
l Gold-plated binding posts that can accept up to 10-gauge wire
l Long throw suspension assembly
l Poly-carbon woofer cone
Subwoofer Features
SUBWOOFER P ARAMETERS
PSW-10D PSW-12D
Nominal Power Rating 225 Watts 260 Watts
Maximum Power Rating 450 Watts 525 Watts
Ferrite Magnet 30 Ounce 40 Ounce
Frequency Response 20 Hz-2.5 kHz 20 Hz-2.5 kHz
Resonant Frequency (F/O) 32 Hz ± 20% 20 Hz ± 20%
VC Diameter 1.5" 2.0"
Sound Pressure Level 89 dB ± 1.5 dB 90 dB ± 1.5 dB
Xmax 6mm 7mm
Nominal Impedance 4 Ohms x 2 4 Ohms x 2
DCR 3.7 Ohms 3.4 Ohms
Speaker Weight 3.0 kg 4.3 kg
WARNING: High-powered car audio systems may produce sound
pressure levels that exceed the threshold at which hearing
loss may result. They may also impair a driver’s ability to
hear traffic sounds or emergency vehicles. Use common
sense and practice safe listening habits when listening to
your audio system.
DUAL VOICE COIL WIRING
CAUTION: Never connect only one voice coil of a dual voice coil woofer.
Both must be driven at the same time for proper operation.
Never connect an amplifier to an impedance load lower than
it is rated to handle.
SERIES/P ARALLEL MONAURAL CONNECTION
Parallel
result in a total impedance load of 2 Ohms at the amplifier, (See Fig. 1) if your
amplifier is rated to drive 2 Ohms in bridged or one-channel operation. If each of
two dual-voice coil 4-Ohm woofers are connected in parallel and then wired to
wiring for a single, dual-voice coil 4-Ohm woofer in a monaural system will
2
each other in parallel, a 1-Ohm monaural output would result (See Fig. 2). On the
other hand, if your amplifier is rated for 4-Ohm operation in bridged or one-channel
operation, series-connect the woofer voice coils (See Fig. 3). If the amplifier is rated
for 8 Ohms, interconnect the voice coils of the woofer in series as shown to obtain an
8-Ohm monaural output (See Fig. 4).
2 Ω
2 Ω
P ARALLEL
+
-
-
+
2
+
-
-
+
Fig. 1
Fig. 2
+
8 Ω
2 Ω
MONO
-
-
2 Ω
+
1 Ω
MONO
+
-
-
+
8 Ω
SERIES
+
Fig. 3
-
+
+
-
Fig. 4
-
8 Ω
4 Ω
MONO
-
+
8 Ω
MONO
SERIES/P ARALLEL STEREO CONNECTION
Series
wiring of each of two, dual voice-coil 4-Ohm woofers will result in a total
impedance load of 8 Ohms at each channel of the amplifier (See Fig. 5). Otherwise,
connect one woofer to each channel for 4-Ohm stereo operation (See Fig. 6), or two
parallel-wired woofers (one-per-channel) for 2-Ohm stereo operation (See Fig.7).
+
8 Ω
8 Ω
-
L
+
-
+
-
+
-
Fig. 5
R
8 Ω
STEREO
-
+
2 Ω
L
+
-
-
2 Ω
+
+
4 Ω
-
2 Ω
STEREO
-
4 Ω
STEREO
+
Fig. 6
-
R
+
Fig. 7
3
SERIES/P ARALLEL CONNECTION USING THREE WOOFERS
Three dual 4-Ohm voice-coil woofers can be connected in such a way as to produce
a 0.66-Ohm (See Fig.8) or 2.66-Ohm monaural output as shown below (See Fig.9).
+
-
+
2 Ω
-
+
2 Ω
+
-
0.66 Ω
+
-
2 Ω
+
-
+
-
-
Fig. 8
-
+
4 Ω
+ - +
-
4 Ω
INST ALLA TION RECOMMENDA TIONS
To realize the utmost in sound reproduction from your subwoofer(s), follow these
installation recommendations:
l Use a quality large gauge wire to connect your subwoofer to the
amplifier
l Use a subwoofer crossover to remove unwanted higher frequencies
l Position the enclosure in the rear of the vehicle with the subwoofer
facing rearward to improve bass response and avoid cancellation
of audio frequencies
-
+
4 Ω
Fig. 9
-+
2.66 Ω
+
-
ENCLOSURE CONSTRUCTION RECOMMENDA TIONS
To enhance subwoofer performance, the following general recommendations should
be addressed when constructing the speaker enclosure:
l Use 3/4" MDF for your construction material
l Glue all joint seams
l Screw or nail all joints tight
l Brace all walls
4
DESIGNING AND BUILDING YOUR SPEAKER ENCLOSURE
The following parameters are offered to assist you in designing your own enclosure.
There are many computer software programs available on the market that, along with
this information, will allow you to construct the type of enclosure that best suits your
needs.
T o obtain the best possible results, we suggest you use our recommended enclosure
designs and have an automotive sound professional build your enclosure.
Thiele/Small Parameters
Parameters
Fs 32.56 Hz 46.62 Hz 20.96 Hz 22.89 Hz
Re 6.88 Ohms 2.15 Ohms 6.88 Ohms 1.76 Ohms
Res 98.91 Ohms 2.0 Ohms 87.17 Ohms 16.24 Ohms
Qms 7.06 0.75 4.26 3.26
Qes 0.49 0.80 0.34 0.35
Qts 0.46 0.39 0.31 0.32
R2 1 1.55 Ohms 2.98 Ohms 17.88 Ohms 4.42 Ohms
V as (Sd) 67.88 Ltrs 33.12 Ltrs 206.53 Ltrs 173.06 Ltrs
Mms (Sd) 59.29 Gms 59.29 Gms 94.51 Gms 94.51 Gms
Cms (Sd) 403 M/Ntn 197 M/Ntn 610 M/Ntn 51 1 M/Ntn
Bl (Sd) 13.04 Tesla-M 6.80 Tesla-M 15.96 T esla-M 8.23 Tesla-M
SPLref (Sd) 88.6 dB 88.0 dB 89.4 dB 89.5 dB
PSW-10D PSW-12D
Series Parallel Series Parallel
5
Recommended Enclosure Designs
SEALED BOX
VENTED BOX
BANDPASS
BOX (4th
order)
PSW-10D
(Vb) Box Volume = 1.15 Cu. Ft.
F3: 55 Hz
Dimensions: 12.5" W x 20.5" H x 7.75" D
(Vb) Box Volume = 1.15 Cu. Ft.
F3: 45 Hz
Dimensions: 12.5" W x 20.5" H x 7.75" D
(P) Port = 2" ID x 7.875" Long
Vbt = 1.15 Cu. Ft. (total)
Vbs = .56 Cu.Ft. (sealed side)
Vbp = .59 Cu. Ft. (ported side) (speaker
load s into this s ide)
Port = 3" ID x 6.125" Long
F3: 42 Hz & 120 Hz with negligible gain
10" W (inside) x 16" H (inside) x 6" D
(inside) (sealed side) x 6.25" D (inside)
(vented side)
PSW-12D
(Vb) Box Volume = 1.42.Cu. Ft.
F3: 52 Hz
Dimensions: 13.5" W x 21.75" H x 8.25" D
(Vb) Box Volume = 1.68 Cu. Ft.
F3: 40 Hz
Dimensions: 14.25" W x 23" H x 8.75" D
(P) Port = 2" ID x 3.75" Long
Vbt = 1.68 Cu. Ft. (total)
Vbs = .79 Cu.Ft. (sealed side)
Vbp = .89 Cu. Ft. (ported side) (speaker
load s into this s ide)
Port = 3" ID x 4.125" Long
F3: 37 Hz & 110 Hz with negligible gain
12" W (inside) x 17.875" H (inside) x 6.25"
D (inside) (sealed side) x 7.125" D (inside)
(vented side)
© 2000 Audiovox Corporation, Hauppauge, NY 1 1788 128-5796
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