Fusion Speaker NVSW12 User Manual

NV SERIES  
SUBWOOFER MODELS  
NVSW12, NVSW15  
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TABLE OF CONTENTS  
SUBWOOFER FEATURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .pg  
SUBWOOFER THEILE/SMALL PARAMETERS . . . . . . . . . . . . . . . . . . . . . .pg  
SUBWOOFER DIMENSIONS NV-SW1ꢀ . . . . . . . . . . . . . . . . . . . . . . . . . . .pg  
SUBWOOFER DIMENSIONS NV-SW15 . . . . . . . . . . . . . . . . . . . . . . . . . . .pg  
ENCLOSURES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .pg  
4
5
6
7
8
ENCLOSURE TEST CURVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .pg 10  
TECH TIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .pg 1ꢀ  
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .pg 17  
RECORD YOUR PRODUCT DETAILS HERE:  
MODEL NUMBER _______________________________ DATE OF PURCHASE______________________  
AFFIX RECEIPT HERE  
WARNING! Audio Systems can produce sound levels over 1ꢁ5dB. Continuous exposure to sound  
pressure levels over 100dB may cause permanent hearing loss!  
Please watch for emergency vehicles as warning signals may not be heard. USE COMMON SENSE!  
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SUBWOOFER FEATURES  
FUSION subwoofers are low frequency drivers capable of delivering extremely high bass levels  
from small enclosures. In order to achieve the maximum performance from your new FUSION  
Subwoofer, please use one of the recommended size enclosures that best suits your application.  
Sealed and vented enclosure sizes can be found in this manual.  
BASKET  
NV Series Subwoofers feature a uniquely high pressure cast aluminium basket. Development  
of the NV Series basket allows rigidity and style for any custom install. Finished in a protective  
metal silver paint and detailed with FUSION green enhancements, the basket displays impressive  
strength and style.  
CONE ASSEMBLY  
Development of the high performance pressed paper cone, creates a dynamic low bass  
response and high power performance. The cone is finished in a dynamic silver with NV Series  
super graphic, catering for style, strength and sound performance.  
SPIDER  
In order to keep the cone assembly balanced and linear, FUSION has used green poly cotton flat  
spiders to reduce the mechanical distortion for better sound quality.  
VOICE COIL  
NV Series Subwoofers use dual ꢀ ohm configuration. This allows a multitude of wiring  
combinations for your amplifier system (please see wiring configurations in this manual). NV  
Series Subwoofers utilise high temperature, multi wound black aluminium voice coils.  
EXTENDED POLE PIECE  
Recognising that an increased linear magnetic field for the subwoofer encourages a better low  
frequency response, FUSION has extended the internal pole piece to achieve this. The extended  
pole piece also decreases distortion.  
MOTOR STRUCTURE  
The motor structure is constructed from the highest strontium magnetic material triple stacked  
and capped with a diamond cut FUSION back plate, has enabled increased power handling and  
larger excursion. With the additional venting holes we assure consistent booming.  
4
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SUBWOOFER THEILE/SMALL PARAMETERS  
Subwoofer Parameters  
MAX Power Rating (Watts)  
RMS Power Rating (Watts)  
Coil Height (Hvc) (mm)  
Compliance (Cms) (uM/N)  
Cone Area (Sd)  
NV-SW12  
ꢀ000  
1000  
40  
NV-SW15  
ꢀ500  
1100  
40  
180.8  
47.9ꢀ  
0.94  
0.47  
8.5ꢁ  
ꢀ6.ꢁ8  
ꢀ1Hz – 500Hz  
10  
146.18  
77.9ꢁ  
0.88  
D.C.Coil Resistance (Re)  
Electrical Q (Qes)  
0.55ꢀ  
8.4  
Force Factor (BL)  
ꢀꢁ.6ꢀ  
19Hz – 500Hz  
10  
Free Air Resonance (Fs)  
Frequency Response (Hz)  
Gap Height (Hag) (mm)  
Impedance (Nominal)  
Inductance (Le) (mH)  
Linear Excursion (X-Max Total)  
Mechanical Excursion  
Mechanical Q (Qms)  
1
1
0.5  
0.51  
40  
40  
15  
15  
6.4ꢀ  
ꢀ19.88  
85  
6.17  
ꢀ85.85  
87  
Moving Mass (Mms)  
Sensitivity (dB)  
0.44  
5ꢀ.ꢀ1  
1.845  
ꢁ08  
0.506  
1ꢀ6.07  
4.45  
Total Loudspeaker Q (Qts)  
VAS (Litres)  
VAS (CuFt)  
ꢁ08  
Magnet Structure (Oz)  
Total Loudspeaker Displacement (Litres)  
8
1ꢀ  
5
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DIMENSIONS  
SUBW00FER  
NV-SW12  
333mm (13–1/8")  
294mm (11–5/8")  
333mm (13–1/8")  
6
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DIMENSIONS  
SUBWOOFER  
NV-SW15  
410mm (161/8")  
366mm (14–7/8")  
410mm (161/8")  
7
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ENCLOSURES  
All enclosures include port and subwoofer displacement. All ports are circle aero ports unless  
otherwise stated.  
Ported Enclosures: A ported enclosure is generally larger than a sealed enclosure  
Sealed Enclosures: A sealed enclosure will be the smallest enclosure you can build. It will have a  
tight low frequency response, but not as low as a ported enclosure.  
OPTIMUM ENCLOSURES  
PORTED  
Volume (litres)  
NV-SW12  
87.ꢁ8  
NV-SW15  
106.4  
Volume (cu.ft)  
ꢁ.086  
ꢁ.759  
Port diameter (mm / in)  
Port length (mm / in)  
Tuned frequency (Hz)  
101mm / 4"  
ꢁ04mm / 11-15/16"  
ꢀ8  
101mm / 4"  
ꢀ89mm / 11-ꢁ/8"  
ꢀ6.ꢀ  
SEALED  
Volume (litres)  
55.6ꢀ  
ꢀ.04ꢁ  
45  
75.7  
ꢀ.68  
ꢁ7  
Volume (cu.ft)  
Tuned frequency (Hz)  
8
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ENCLOSURE CONSTRUCTION  
All enclosures should be constructed from 18mm (ꢁ/4”) Medium Density Fibre board.  
Enclosures should be glued and screwed, because MDF is porous. FUSION recommends  
sealing the internal sides with a polyurethane sealer prior to installation. To accurately cut the  
subwoofer hole use the unique FUSION ruler guide included inside the FUSION Subwoofer  
packaging.  
ENCLOSURE PLACEMENT  
An important factor is to place the subwoofer enclosure as far back in the vehicle as possible,  
so that the natural bass gain of the vehicle is utilised. If your vehicle is a hatch back, always  
experiment with which direction the subwoofer is facing. Facing the subwoofer towards the  
rear of the car, should enhance the low down bass that NV Series Subwoofers are designed  
to produce.  
ENCLOSURE TUNING  
When tuning the system it is always a good idea to try running the subwoofer out of phase  
(which means switching the speaker wires around) with your other speakers. Do this and listen  
to the system to see if the perception of bass is more from the subwoofer location or the front  
speaker location. Which ever way gives the better perception that the bass is coming from the  
front speakers, would quite safely guarantee the subwoofer is wired correctly.  
CALCULATING ENCLOSURE ‘BOX’ VOLUME  
Cuft:  
To calculate Cuft multiply the height (A), width (B), depth (C) in inches, then divide that number  
by 17ꢀ8.  
Example: 10" high x 18" wide x 1ꢀ" deep = ꢀ160 inches³  
Divide ꢀ160/17ꢀ8 = 1.ꢀ5 ft³  
Litres:  
To calculate Litres, multiply the height (A), width (B), depth (C) in centimetres, then divide that  
number by 1000.  
Example: ꢀ5.4cm high x 45.7ꢀcm wide x ꢁ0.48cm deep = ꢁ5ꢁ9cm³  
Divide ꢁ5ꢁ96/1000 = ꢁ5.ꢁ9 litres  
A
C
B
9
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ENCLOSURE TEST CURVES  
SUBWOOFER  
NV-SW12  
SEALED  
Amplitude Response (dB-SPL/Hz at 1 m) with 1200 watts  
124  
118  
112  
106  
100  
dB  
94  
88  
82  
5
10  
50  
100  
500  
1000  
20K  
Hz  
PORTED  
Amplitude Response (dB-SPL/Hz at 1 m) with 1200 watts  
124  
118  
112  
106  
100  
dB  
94  
88  
82  
5
10  
50  
100  
500  
1000  
20K  
Hz  
10  
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SUBW00FER  
NV-SW15  
SEALED  
Amplitude Response (dB-SPL/Hz at 1 m) with 1500 watts  
125  
119  
113  
107  
101  
dB  
95  
89  
83  
5
10  
50  
100  
500  
1000  
20K  
Hz  
PORTED  
Amplitude Response (dB-SPL/Hz at 1 m) with 1500 watts  
125  
119  
113  
107  
101  
dB  
95  
89  
83  
5
10  
50  
100  
500  
1000  
20K  
Hz  
11  
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TECH TIPS  
POWER CABLE CALCULATOR  
0-4 FT  
14  
1ꢀ  
10  
8
4-7 FT  
7-10 FT  
10 -1ꢁ FT  
1ꢁ-16 FT  
16-19 FT  
19-ꢀꢀ FT  
ꢀꢀ-ꢀ8 FT  
TOTAL AMPERAGE  
0 – ꢀ0  
1ꢀ  
10  
8
1ꢀ  
8
10  
8
10  
6
8
6
4
4
0
0
8
6
4
4
0
0
8
4
4
0
0
0
0
ꢀ0 – ꢁ5  
ꢁ5 – 50  
8
6
4
50 – 65  
8
6
4
4
65 – 85  
6
6
4
4
85 105  
6
6
4
105 1ꢀ5  
1ꢀ5 150  
4
4
4
0
0
0
The above chart shows cable gauges to be used, if no less than a 0.5 volt drop is acceptable. If aluminium  
wire or tinned wired is used, the gauges should be of an even larger size to compensate. Cable gauge size  
calculation takes into account terminal connection resistance.  
OHMS LAW SIMPLIFIED  
E
I
IR  
E2  
W
W
I
W
I2  
WR  
E
I
R
E2  
R
W
E
R
W
E
I2R  
W/R  
EI  
1ꢀ  
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SUBWOOFER RULER GUIDE  
Use the FUSION ruler guide to create a perfect subwoofer mounting surface.  
Fig. 1  
1: Mark the centre position on the MDF (Medium Density Fibre) board where the subwoofer is  
to be mounted.  
0
0
10  
20  
30  
40  
50  
60  
70  
80  
90  
100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250  
260 270 280 290 300 310 320 330 340 350 360 370 380 390 400  
(mm)  
(inch)  
10"  
cutout  
10" outside  
263mm  
12"  
12" outside  
312mm  
15"  
15" outside  
389mm  
Centre  
usionc  
3
r
udio com  
cutout  
cutout  
1
2
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
Fig. ꢀ  
2: Fix the first hole (centre) to the marked out position on the MDF.  
1ꢁ  
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0
20  
30  
40  
50  
60  
70  
usionc  
3
80  
90  
100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250  
260 270 280 290 300 310 320 330 340 350 360 370 90 400  
(mm)  
(inch)  
10"  
cutout  
10" outside  
263mm  
12"  
12" outside  
312mm  
"  
15" outside  
389mm  
Centre  
r
udio com  
cutout  
utout  
1
2
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
Fig. ꢁ  
3: Insert a pencil into the correct subwoofer cut out measurement. 10", 1ꢀ", or 15".  
)
( i n c h 6 1  
m m 9 8 3  
5 1  
4 1  
3 1  
2 1  
1 1  
0 1  
9
8
7
6
5
4
0
c u t t  
m m 2 1 3  
c
u
t
o
u
t
m
m
3
6
2
c u t o u t  
.  
i
.  
t n e  
C
e
d i  
s t  
u o " 5 1  
"
5 1  
e d i  
s t  
u o " 2 1  
"
2 1  
e
d i  
s t  
u o " 0 1  
"
0 1  
( m m ) 0 0 4 0 9 3 0 8 3 0 7 3 0 6 3 0 5 3 0 4 3 0 3 3 0 2 3 0 1 3 0 0 3 0 9 2 0 8 2 0 7 2 0 6 2  
0 5 2 0 4 2 0 3 2 0 2 2 0 1 2 0 0 2 0 9 1 0 8 1 0 7 1 0 6 1 0 5 1 0 4 1 0 3 1 0 2 1 0 1 1 
3  
0 2  
0 1  
Fig. 4  
4: Scribe a perfect cut out diameter onto the MDF board.  
Fig. 5  
5: Using a jigsaw or router, cut out this measurement.  
14  
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SERIES AND PARALLEL SUBWOOFER WIRING FOR  
DUAL VOICE COIL SUBS  
Parallel Voice Coil Wiring (1 Ohm operation)  
To wire a DVC subwoofer in parallel (to get 1 Ohm), use two short pieces of speaker wire and  
link the positive from one coil to the positive of the second coil, and do the same for the negative  
as shown in fig 1. Then wire the amplifier to opposite sides of the subwoofer in order to equalise  
any connection resistance.  
-
Fig.1  
1 Ohm operation  
Series Voice Coil Wiring (4 Ohm operation)  
To wire a DVC subwoofer in series (to get 4 Ohms), use one short piece of speaker wire and link  
the positive from one voice coil to the negative of the second coil as shown in fig ꢀ. Then wire  
the amplifier to opposite sides of the subwoofer.  
-
Fig. 2  
4 Ohm operation  
15  
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PARALLEL WIRING FORMULA FOR 2 SPEAKERS  
8 Ohm  
4 Ohm  
2.67 Ohms  
R1 x R2  
R1 + R2  
4 Ohms x 8 Ohms  
4 Ohms + 8 Ohms  
32  
12  
=
LOAD IMPEDANCE  
=
=
2.67 Ohms  
SERIES WIRING FORMULA FOR 2 SPEAKERS  
+
+
4 Ohm  
4 Ohm  
+
8 Ohms  
R1 + R2 = LOAD IMPEDANCE  
16  
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TROUBLE SHOOTING  
No sound from your subwoofer: Check amplifier and wiring connections.  
Distorted sound: Check the connections from amplifier, processor or head unit.  
Subwoofer makes unusual noise in sealed enclosure: The enclosure may have leaks causing  
a lack of back pressure. Remove the subwoofer and ensure the enclosure is completely sealed,  
use sealer and polyurethane to do this.  
Ported enclosure makes an unusual noise: Possibly due to incorrect port used. The correct  
term is chuffing, and to rectify this you will need to increase the port area. The diameter will need  
to increase and the port length will need recalculating.  
Bad smell: If you smell a burning smell, then chances are the subwoofer has been damaged.  
This can be due to the enclosure parameters being incorrect, too small an amplifier used and the  
subwoofer is receiving unwanted clipped signals or the music choice has enhanced bass notes  
played for long periods of time. Check the enclosure volume used and ensure the subwoofer is  
receiving clean audio signals from the amplifier.  
Vehicle rattles: The best way to solve this problem is to add sound deadening material to the  
steel panels of your vehicle. Ensure all screws and plastic panels are affixed firmly.  
INSTALLATION WARNING  
1: Ensure the vehicle 1ꢀ volt lead is removed before any equipment is connected.  
2: Investigate the vehicle’s gas tanks, brake lines and electrical wiring locations before you  
begin installation.  
3: Attach the product securely to the vehicle to prevent damage in the event of an accident.  
4: Ensure all wiring is protected to avoid damage or pinching of the cables.  
17  
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NOTES  
18  
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YOU CAN HELP PROTECT THE ENVIRONMENT!  
Please remember to respect the local regulations:  
Hand in the non-working electrical equipment  
to an appropriate waste disposal center.  
PUBLISHED BY FUSION ELECTRONICS LIMITED:  
© Copyright ꢀ006 by FUSION Electronics Limited.  
All rights reserved. Specifications and design are  
subject to change without notice.  
19  
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Specifications and design are subject to change without notice.  
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