Fusion Electronics Car Speaker Pp Sw120 Users Manual

PP-SW120 to the manual e379ebea-458c-4a99-89d0-ed09b54e5e0c

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POWERPLANT
Installation Warning
1. Ensure the vehicle 12 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.

SUBWOOFERS
PP-SW120, PP-SW150
Subwoofer Parameters
Max Power Rating
RMS Power Rating
Frequency Response
Impedance
Sensitivity
Compliance (Cms)
Cone Area (Sd)
D.C. Coil Resistance (Re)
Electrical Q (Qes)	
Force Factor (Bl)
Free Air Resonance (Fs)
Linear Excurson (Xmax)
Mechanical Excursion (mm)
Mechanical Q (Qms)
Total Loudspeaker Q (Qts)
VAS (L)	
VAS (CuFt)

PP-SW120
1200 Watts
500 Watts
25Hz - 2.5kHz
2 x 2 Ohms
90 dB
207.925
490.87
3.6 (1.8 x 2)
0.475
12.471
37
30
9
3.345
0.416
71.142
2.5

PP-SW150
1500 Watts
625 Watts
20Hz - 1.5kHz
2 x 2 Ohms
91 dB
91.005
754.77
3.6 (1.8 x 2)
0.397
21.715
33.620
30
9
2.643
0.345
73.618
2.6

PP-SW120
41
1.48
101mm/4”
348mm / 13.73”
40

PP-SW150
60
2.2
101mm/4”
350mm / 13.75"
38.5

27
1.0
75

45.5
1.6
80

RECORD YOUR PURCHASE DETAILS HERE:
MODEL NUMBER __________________________

DATE OF PURCHASE__________________________

AFFIX RECEIPT HERE

WARNING! Audio Systems can produce sound levels over 135dB. 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!

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.

V 1.0

PUBLISHED BY FUSION ELECTRONICS LIMITED:
© Copyright 2006 by FUSION Electronics Limited.
All rights reserved. Specifications and design are
subject to change without notice.

Optimum Enclosures
Ported
Volume (litres)
Volume (cu.ft.)
Port diameter
Port length
Tuned frequency (Hz)
Sealed
Volume (litres)
Volume (cu.ft.)
Tuned frequency (Hz)

Ohms Law Simplified

ge
ra t
pe ren
am cur

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R

R

tts

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I

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R

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.

E

W
I2

ce

WR

n
ta
sis
re

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 PowerPlant Subwoofers
are designed to produce.

E2
W

wa

W
I

E
I

IR

vo
lta
g

Enclosure Construction
All enclosures should be constructed from 18mm (3/4”) 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.

W
E

I2R
W/R

Calculating Enclosure ‘Box’ Volume
Cuft:
To calculate Cuft multiply the height (A), width (B), depth (C) in inches, then divide that number by 1728.
Example: 10” high x 18” wide x 12” deep = 2160 inches³
Divide 2160/1728 = 1.25 ft³
Litres:
To calculate Litres, multiply the height (A), width (B), depth (C) in centimetres, then divide that number by 1000.
Example: 25.4cm high x 45.72cm wide x 30.48cm deep = 3539cm³
Divide 35396/1000 = 35.39 litres

EI

Series and Parallel Subwoofer Wiring for 2 x 2 Ohm Dual Voice Coil Subwoofers
Parallel Voice Coil Wiring (1 Ohm operation)
To wire a 2 x 2 ohm 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 below. Then wire the amplifier to opposite sides of the subwoofer in order to equalise any connection resistance

-

+

Tech Tips
TOTAL AMPERAGE

0-4 FT

4-7 FT

7-10 FT

10 -13 FT

13-16 FT

16-19 FT

19-22 FT

22-28 FT

0 – 20

14

12

12

10

10

8

8

8

20 – 35

12

10

8

8

6

6

6

4

35 – 50

10

8

8

6

4

4

4

4

50 – 65

8

8

6

4

4

4

4

2

65 – 85

6

6

4

4

2

2

2

0

85 – 105

6

6

4

2

2

2

2

0

105 – 125

4

4

4

2

0

0

0

0

125 – 150

2

2

2

0

0

0

0

0

12 ohm
Ohm operation
operation

Series Voice Coil Wiring (4 Ohm operation)
To wire a 2 x 2 ohm 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 below. Then wire the amplifier to opposite sides of the
subwoofer.

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.

-

+

4 8ohm
Ohmoperation
operation



---

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