NV SERIES
SUBWOOFER MODELS
NV–SW12, NV–SW15
Download from Www.Somanuals.com. All Manuals Search And Download.
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!
ꢁ
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
DIMENSIONS
SUBW00FER
NV-SW12
333mm (13–1/8")
294mm (11–5/8")
333mm (13–1/8")
6
Download from Www.Somanuals.com. All Manuals Search And Download.
DIMENSIONS
SUBWOOFER
NV-SW15
410mm (16–1/8")
366mm (14–7/8")
410mm (16–1/8")
7
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
NOTES
18
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com. All Manuals Search And Download.
Specifications and design are subject to change without notice.
Download from Www.Somanuals.com. All Manuals Search And Download.
|