Audiovox Speaker PSPL 10 User Manual

HIGH PERFORMANCE  
SUBWOOFERS  
MODELS PSPL-10 AND PSPL-12  
OWNER’S MANUAL  
 
other in parallel, a 0.5-Ohm monaural output would result (See Fig. 2). On the other  
hand, if your amplifier is rated for 2-Ohm operation in bridged or one-channel operation,  
series-connect the woofer voice coils (See Fig. 3). If the amplifier is rated for 4 Ohms,  
interconnect the voice coils of the woofer in series as shown to obtain an 4-Ohm mon-  
aural output (See Fig. 4).  
PARALLEL  
SERIES  
+
-
-
+
1 Ω  
-
+
4 Ω  
4 Ω  
1 Ω  
MONO  
2 Ω  
MONO  
-
+
-
+
-
+
Fig. 1  
Fig. 3  
-
+
-
-
1Ω  
+
+
1 Ω  
4 Ω  
4 Ω  
MONO  
0.5 Ω  
MONO  
+
+
+
-
-
-
Fig. 4  
Fig. 2  
SERIES/PARALLEL STEREO CONNECTION  
Series wiring of each of two, dual voice-coil 2 Ohm woofers will result in a total  
impedance load of 4 Ohms at each channel of the amplifier (See Fig. 5). Otherwise,  
connect one woofer to each channel for 2 Ohm stereo operation (See Fig. 6), or two  
parallel-wired woofers (one-per-channel) for 1-Ohm stereo operation (See Fig.7).  
+
-
+
4 Ω  
-
L
2 Ω  
STEREO  
+
-
+
4 Ω  
STEREO  
+
2 Ω  
-
-
4 Ω  
Fig. 6  
R
-
+
1 Ω  
+
-
L
Fig. 5  
+
-
+
1 Ω  
STEREO  
-
1Ω  
R
+
-
Fig. 7  
3
 
INSTALLATION RECOMMENDATIONS  
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
l
Use a subwoofer crossover to remove unwanted higher frequencies  
Position 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:  
l
l
l
l
Use 3/4" MDF for your construction material  
Glue all joint seams  
Screw all joints tight  
Brace all walls  
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.  
To obtain the best possible results, we suggest you use our recommended enclosure  
designs and have an automotive sound professional build your enclosure.  
4
 
Thiele/Small Parameters  
PSPL-10  
PSPL-12  
Series  
Parameters  
Series  
Parallel  
38.40 Hz  
0.95 Ohms  
4.32 Ohms  
2.55  
Parallel  
Fs  
Re  
38.88 Hz  
3.97 Ohms  
31.88 Ohms  
3.89  
32.44 Hz  
4.01 Ohms  
41.37 Ohms  
4.41  
32.14 Hz  
0.99 Ohms  
10.37 Ohms  
4.34  
Res  
Qms  
Qes  
0.48  
0.56  
0.43  
0.42  
Qts  
0.43  
0.46  
0.39  
0.38  
R2  
8.69 Ohms  
29.44 Ltrs  
68.43Gms  
245 M/Ntn  
2.53 Ohms  
30.17Ltrs  
68.43Gms  
251 M/Ntn  
12.65 Ohms  
54.81 Ltrs  
106.45 Gms  
226 M/Ntn  
3.18 Ohms  
55.84 Ltrs  
106.45 Gms  
230 M/Ntn  
Vas (Sd)  
Mms (Sd)  
Cms (Sd)  
Bl (Sd)  
SPLref (Sd)  
11.31 Tesla-M 5.30 Tesla-M 14.27 Tesla-M 7.16 Tesla-M  
87.4 dB  
86.7 dB  
88,2 dB  
88.3 dB  
5
 
Recommended Enclosure Designs  
PSPL-12  
PSPL-10  
(Vb) Box Volume = 0.56 Cu. Ft.  
SEALED BOX F3: 42 Hz  
(Vb) Box Volume = 0.77 Cu. Ft.  
F3: 64 Hz  
Dimensions: 11.5" W x 16" H x 5.25" D  
Dimensions: 13.5" W x 17.75" H x 5.5" D  
(Vb) Box Volume = 1.15 Cu. Ft.  
F3: 42 Hz  
Dimensions:12.5" W x 20.25" H x 7.75" D Dimensions: 14.13" W x 23" H x 8.75" D  
(Vb) Box Volume = 1.68 Cu. Ft.  
F3: 36 Hz  
VENTED BOX  
(P) Port = 2" ID x 7.875" Long  
(P) Port =3" ID x 8.75" Long  
Vbt = 1.15 Cu. Ft. (total)  
Vbt = 1.23 Cu. Ft. (total)  
Vbs = .58 Cu.Ft. (sealed side)  
Vbp = .57 Cu. Ft. (ported side) (speaker  
loads into this side)  
Vbs = .59 Cu.Ft. (sealed side)  
Vbp = .64 Cu. Ft. (ported side) (speaker  
loads into this side)  
BANDPASS  
BOX (4th  
order)  
Port = 3" ID x 9.25" Long  
Port = 3" ID x7.125" Long  
F3: 39 Hz & 100 Hz with negligible gain  
10" W (inside) x 16.125" H (inside) x  
6.125" D (inside) (sealed side) x 6" D  
(inside) (vented side)  
F3: 38 Hz & 115 Hz with negligible gain  
12" W (inside) x 16.125" H (inside) x  
5.125" D (inside) (sealed side) x 5.625" D  
(inside) (vented side)  
© 2000 Audiovox Corporation, Hauppauge, NY 11788  
128-5809  
 

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