Audiovox Prestige PSW-10DC User manual

HIGH PERFORMANCE DUAL
FOUR-OHM VOICE COIL
SUBWOOFERS WITH
CHROME BASKET
MODELS PSW-10DC AND PSW-12DC
OWNERS MANUAL

Congratulations on your purchase of the Prestige High Performance
Subwoofer. The
Prestige Subwoofers are designed to provide you with high
quality Bass reproduction required to make your car audio system perform to
its full potential.
PRESTIGE Subwoofer Features
lDual 4-Ohm voice coil for maximum flexibility and performance
lLow-Q parameters for Isobaric and small sealed box enclosures
lVented magnet for improved performance
lGold-plated binding posts that can accept up to 10-gauge wire
lLong throw suspension assembly
lPoly-carbon woofer cone
lChrome basket
SUBWOOFER PARAMETERS
PSW-10DC PSW-12DC
Nominal Power Rating 225 Watts 260 Watts
Maximum Power Rating 450 Watts 525 Watts
Ferrite Magnet 30 Ounce 40 Ounce
FrequencyResponse 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
pressurelevelsthatexceed thethreshold atwhich 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: Neverconnectonlyonevoicecoilof a dual voice coil woofer.
Both must be driven at the same time for proper operation.
Neverconnectanamplifierto an impedance load lowerthan
it is rated to handle.
SERIES/PARALLEL MONAURAL CONNECTION
Parallel wiring for a single, dual-voice coil 4-Ohm woofer in a monaural system will
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
2

two dual-voice coil 4-Ohm woofers are connected in parallel and then wired to
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
8-Ohm monaural output (See Fig. 4).
3
4 Ω
STEREO
-
+
-+
4 Ω
8 Ω
STEREO
L
R
-
+
-+
8 Ω
-
+
-+
8 Ω
2 Ω
STEREO
R
L
-
+
-+
2 Ω
-
+
-+
2 Ω
SERIES/PARALLEL 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).
Fig. 7
Fig. 6
Fig. 5
1 Ω
MONO
2 Ω
MONO 4 Ω
MONO
8 Ω
MONO
2
-
+
-+
2 Ω-
+
-+
2 Ω
-
+
-+
2 Ω-
+
-+
8 Ω-
+
-+
8 Ω
-
+
-+
8 Ω
Fig. 1
PARALLEL SERIES
Fig. 4
Fig. 3
Fig. 2

4
SERIES/PARALLEL 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).
-
+-
+-
+
-+-+-+
+
-
0.66 Ω
2 Ω
2 Ω
2 Ω
INSTALLATION RECOMMENDATIONS
To realize the utmost in sound reproduction from your subwoofer(s), follow these
installationrecommendations:
lUse a quality large gauge wire to connect your subwoofer to the
amplifier
lUse a subwoofer crossover to remove unwanted higher frequencies
lPosition the enclosure in the rear of the vehicle with the subwoofer
facing rearward to improve bass response and avoid cancellation
of audio frequencies
ENCLOSURE CONSTRUCTION RECOMMENDATIONS
To enhance subwoofer performance, the following general recommendations should
be addressed when constructing the speaker enclosure:
lUse 3/4" MDF for your construction material
lGlue all joint seams
lScrew or nail all joints tight
lBrace all walls
Fig. 8
Fig. 9
-
+-
+-+
-+-+-+
2.66 Ω
4 Ω4 Ω4 Ω

5
PSW-10DC PSW-12DC
Series Parallel Series Parallel
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 11.55 Ohms 2.98 Ohms 17.88 Ohms 4.42 Ohms
Vas (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 511 M/Ntn
Bl (Sd) 13.04 Tesla-M 6.80 Tesla-M 15.96 Tesla-M 8.23 Tesla-M
SPLref (Sd) 88.6 dB 88.0 dB 89.4 dB 89.5 dB
Thiele/Small Parameters
Parameters
DESIGNING AND BUILDING YOUR SPEAKER ENCLOSURE
The following parameters are offered to assist you in designing your own enclosure.
Thereare many computer software programs available on themarket that, along with
this information, will allow you to construct the type of enclosure that best suits your
needs.
To obtain the best possible results, we suggest you use our recommended enclosure
designs and have an automotive sound professional build your enclosure.

© 2000 Audiovox Corporation, Hauppauge, NY 11788 128-5997
PSW-10DC PSW-12DC
Recommended Enclosure Designs
SEALED BOX (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 = 1.42.Cu. Ft.
F3: 52 Hz
Dimensions: 13.5" W x 21.75" H x 8.25" D
VENTED BOX
(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
(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
BANDPASS
BOX (4th
order)
Vbt = 1.15 Cu. Ft. (total)
Vbs = .56 Cu.Ft. (sealed side)
Vbp = .59 Cu. Ft. (ported side) (speaker
loads into this side)
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)
Vbt = 1.68 Cu. Ft. (total)
Vbs = .79 Cu.Ft. (sealed side)
Vbp = .89 Cu. Ft. (ported side) (speaker
loads into this side)
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)