Rockford Fosgate Punch P2D4-8 Bruksanvisning

Rockford Fosgate Subwoofer Punch P2D4-8

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P2-DVC - DUAL VOICE COIL SUBWOOFERS

8" 10" 12" 15"

Dual 2-Ohm P2D2-8 P2D2-10 P2D2-12 P2D2-15

Dual 4-Ohm P2D4-8 P2D4-10 P2D4-12 P2D4-15

This manual outlines two specific types of enclosures that provide

distinctly different performance.This section is to help you decide

which type is best for your application.

SEALED ENCLOSURES

Sealed enclosures are the simplest to build.The most important part of

building a sealed enclosure is to make sure that the enclosure is airtight.

Using glue and some type of sealant on all seams will ensure solid

construction and prevent air leaks. The box volume will directly impact

the performance of the speaker. Larger enclosures will provide flatter

response and deeper bass where smaller boxes will provide a bump in

the response curve and generally higher output for greater SPL.

Advantages of sealed enclosures:

•Small enclosures

•Linear (Flat) response

•No port noise

•High power handling at all frequencies

•Excellent for sound quality

•Extended low frequency output when compared to vented enclosures

VENTED ENCLOSURES

Vented enclosures vary only from the sealed enclosure in that a vent or

port is added to “tune” the enclosure.The enclosures recommended are

designed for great overall performance. Larger boxes tend to be easy to

tune to lower frequencies while medium and small boxes are easier

to tune to higher frequencies.The vented design is less linear in

response than the sealed box but with noticeably more output at

the tuning frequency.

Advantages of vented enclosures:

•Higher average output than sealed

•Tuning frequency can be easily adjusted by changing port length

•Deep bass response with lower power requirements

•Great for high output with limited power

The graph shown here is a sample of how the F3 drop-off

point differs between sealed and vented enclosures.

BUILDING AN ENCLOSURE

To work properly, the walls of the enclosure must be rigid and not flex

when subjected to the high pressures generated by the speaker's

operation. For optimum performance, we recommend using 3/4" MDF

(Medium Density Fiberboard) and internal bracing.The enclosure should

be glued together and secured with nails or screws.

CALCULATING VOLUME

Calculating volume is merely a matter of measuring the dimensions in

inches and using the formula: H x W x D divided by 1728 (cubic feet).

See block below.

If two facing sides are of uneven length, add them together and divide by

two to take the average. Using this number will give you the volume

without the necessity of calculating the box in sections and adding the

sections together.The thickness of the baffle material reduces the internal

volume so this must be subtracted from the outside dimensions to

determine the internal volume.The speaker itself also reduces the

internal volume.The amount of air displaced by each model is listed on

the specification sheet and should also be subtracted from the gross

volume calculation.

SAFETY CARTON ONTENTSC

CAUTION: Before installation, disconnect the battery

negative (-) terminal to prevent damage

to the unit, fire and/or possible injury.

PRACTICE SAFE SOUND™

Continuous exposure to sound pressure levels over 100dB may

cause permanent hearing loss. High powered auto sound systems

may produce sound pressure levels well over 130dB. Use common

sense and practice safe sound.

•(1) Punch P2 Series Subwoofer

•(1) Painted Aluminum decorative trim ring

•(8) Socket head wood screws

•(1) Socket head driver bit

R EECOMMENDED NCLOSURES

Box Volume Height"x Width"x Depth"

Divided by (cubic feet) 1728

SEALDED ENCLOSURES 8" 10" 12" 15"

P2D2-8 / P2D4-8 P2D2-10 / P2D4-10 P2D2-12 / P2D4-12 P2D2-15 / P2D4-15

Vb- Internal Area cu. ft. 0.23 0.59 1.02 1.58

(Liter) (6.51) (16.71) (28.88) (44.74)

F3- -3dB Point (Hz) 64.4 45.3 42.6 35.8

Qtc- Enclosure Damping 0.71 0.84 0.90 1.26

H - Height-inch 10.0 12.0 14.0 18.0

(cm) (25.40) (30.48) (35.56) (45.72)

W - Width-inch 12.0 14.0 18.0 21.0

(cm) (30.48) (35.56) (45.72) (53.34)

D - Depth-inch 6.0 9.25 10.0 10.0

(cm) (15.24) (23.50) (25.40) (25.40)

SEALDED ENCLOSURES 8" 10" 12" 15"

Vb- Volume Range cu. ft. 0.20 to 0.30 0.50 to 0.85 0.70 to 1.80 1.30 to 3.50

(Liter) (5.66 to 8.50) (14.16 to 24.07) (19.82 to 50.97) (36.81 to 99.10)

VENTED ENCLOSURES 8" 10" 12" 15"

Vb- Internal Area cu. ft. 0.65 1.40 1.79 2.66

(Liter) (18.41) (39.64) (50.69) (75.32)

Fb- Tuning Frequency (Hz) 38.5 40.0 40.0 32.0

F3- -3dB Point (Hz) 33.0 32.5 34.7 31.5

H - Height-inch 12.0 12.0 14.0 18.0

(cm) (30.48) (30.48) (35.56) (45.72)

W - Width-inch 18.0 20.0 25.0 28.0

(cm) (45.72) (50.80) (63.50) (71.12)

D - Depth-inch 8.0 14.0 12.0 12.0

(cm) (20.32) (35.56) (30.48) (30.48)

P - Port Diameter and

Length-inch (1) 2 x 8 (1) 4 x 14 (1) 4 x 10 (1) 4 x 10

(cm) (1) (5.08 x 20.32) (1) (10.16 x 35.56) (1) (10.16 x 25.40) (1) (10.16 x 25.40)

P2D2-8 / P2D4-8 P2D2-10 / P2D4-10 P2D2-12 / P2D4-12 P2D2-15 / P2D4-15

Produktspecifikationer

Varumärke:	Rockford Fosgate
Kategori:	Subwoofer
Modell:	Punch P2D4-8
Typ av operation:	Draaiknop
Färg på produkten:	Wit
Inbyggd display:	Nee
Vikt:	36520 g
Bredd:	600 mm
Grill:	Nee
Energie-efficiëntieklasse:	A
Årlig-energiförbrukning:	0.8 kWu
Förpackningens vikt:	38640 g
Förpackningens bredd:	645 mm
Djuppackning:	684 mm
Förpackningshöjd:	922 mm
Avfrostningsfunktion:	Nee
Brännare/kokzonseffekt 2:	1800 W
Brännare/kokzonseffekt 3:	1200 W
Brännare/kokzonseffekt 1:	1200 W
Antal brännare/kokzoner:	4 zone(s)
Typ av häll:	Keramisch
Ugnens strömkälla:	Electrisch
Antal ugnar:	1
Kontrollposition:	Voorkant
Avtagbar ugnslucka:	Ja
Energiförbrukning (konventionell):	- kWu
Ugnsstorlek:	Middelmaat
Ugn med nettokapacitet:	72 l
Bakplåtsmått:	Ja
Färghandtag:	Zilver
Antal bakplåtar:	1
Antal rutnät:	1
Brännare/kokzonseffekt 4:	1800 W
Strömkälla brännare/kokzon 1:	Electrisch
Strömkälla brännare/kokzon 2:	Electrisch
Strömkälla brännare/kokzon 3:	Electrisch
Strömkälla för brännare/kokzon 4:	Electrisch
Inklusive grillställ:	Ja
Ugnskraft:	1100 W
Wokbrännare:	Nee
Placera brännare/kokzon 1:	Links achter
Diameter brännare/kokzon 1:	145 mm
Placera brännare/kokzon 2:	Rechts achter
Brännare/kokzons diameter 2:	180 mm
Placera brännare/kokzon 3:	Links voor
Brännare/kokzons diameter 3:	145 mm
Placera brännare/kokzon 4:	Rechts voor
Brännare/kokzons diameter 4:	180 mm
Typ produkt:	Vrijstaand fornuis
Energieffektivitetsskala:	A+++ tot D