Get maximum from JBL P1222 subwoofer

Home / the12volt's Install Bay / Car Audio / Get maximum from JBL P1222 subwoofer (

Topic Closed)

Welcome Guest :)

Members

Next Page > < Prev Topic Next Topic >

miniiso

Member - Posts: 5

Joined: December 12, 2006

Location: India

Posted: December 12, 2006 at 12:24 PM / IP Logged

Hello, last week i got brand new subwoofer - JBL P1222

i have also amplifier from power series - JBL BPX2200.1, some monster cables and Batcap...

I want discover, whats the limits of this nice SW..How much dB SPL i can get from this one in right "SPL" enclosuer...

Could someone help me design the ultimate SPL box?

Many thx for answers Get maximum from JBL P1222 subwoofer -- posted image.

mini ISO

:-)

I like this forum

jeffchilcott

Platinum - Posts: 2,483

Joined: April 11, 2002

Location: United States

Posted: December 12, 2006 at 5:40 PM / IP Logged

what type of vehicle? What organization do you plan to run and test this SPL setup in?

2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

2007 USACI World Champion

2007 World Record

2006 USACI Finals 2nd Place

miniiso

Member - Posts: 5

Joined: December 12, 2006

Location: India

Posted: December 13, 2006 at 11:49 AM / IP Logged

jeffchilcott wrote:

what type of vehicle? What organization do you plan to run and test this SPL setup in?

jeffchilcott wrote:

what type of vehicle? What organization do you plan to run and test this SPL setup in?

Hello, I want to compete in dBDRAG...so I want to be prepared for sine test tone around 50-60Hz..idk..

Recommended vented enclosure volume is 1,75ft3 (49.56liters) and port length 277mm (10-3/4") and diameter 102mm (4"), but im not sure, if with this solution i got maximum from this SW...

THIELE-SMALL PARAMETERS of JBL P1222 DVC

VOICE COIL DC RESISTANCE : R EVC (OHMS ) . . . . . . 1.00

VOICE COIL INDUCTANCE @ 1KHZ: LEVC (MH) . . . . . . . 1.10

DRIVER RADIATING AREA : S D

(IN 2) . . . . . . . . 87.11
SD . . . . . . 562.00
MOTOR FORCE FACTOR : B L (T M) . . . . . . . . 10.00
COMPLIANCE VOLUME : V AS (FT 3) . . . . . . . . 1.53
VAS (LITERS ) . . . . . 43.30
SUSPENSION COMPLIANCE : C MS (µ M/N) . . . . 96.00
MOVING MASS , AIR LOAD : M MS (GRAMS ). . . . 323.00
MOVING MASS , DIAPHRAGM : M MD (GRAMS ) . . . 315.80
FREE -A IR RESONANCE : F S (H Z) . . . . . . . . 28.60
MECHANICAL Q: Q MS . . . . . . . . . . . 9.04
ELECTRICAL Q: Q ES . . . . . . . . . . . . 0.58
TOTAL Q: Q TS . . . . . . . . . . . . 0.55
MAGNETIC -G AP HEIGHT : H AG (IN ) . . . . . . . . 0.48
HAG (MM ) . . . . . . . 12.00
VOICE -C OIL HEIGHT : H VC (IN ) . . . . . . . . 1.58
HVC (MM ) . . . . . . . 40.00
MAXIMUM EXCURSION : X MAX (IN ) . . . . . . . . .56
XMAX (MM ) . . . . . . 14.00

Many THX for replys
:-)

I like this forum

miniiso

Member - Posts: 5

Joined: December 12, 2006

Location: India

Posted: December 13, 2006 at 11:56 AM / IP Logged

oh...and it goes to Peugeot 206, small car :-)

:-)

I like this forum

jeffchilcott

Platinum - Posts: 2,483

Joined: April 11, 2002

Location: United States

Posted: December 13, 2006 at 12:52 PM / IP Logged

untill I can look into what one of these cars look like, I will only be able to offer limited help.

Is this a trunk car or hatchback?

If hatch go with a box 1.25-1.5cuft internal with (2) 4 by 12 in ports

I prefer Actual Aero-POrts, I know some companys in finland and germany carry them but dont know about down there

2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

2007 USACI World Champion

2007 World Record

2006 USACI Finals 2nd Place

geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: December 13, 2006 at 3:55 PM / IP Logged

Those are small hatchbacks- about the size of a Civic Si or a Ford Focus.

My ex once told me I have a perfect face for radio.

miniiso

Member - Posts: 5

Joined: December 12, 2006

Location: India

Posted: December 14, 2006 at 3:15 PM / IP Logged

jeffchilcott wrote:

untill I can look into what one of these cars look like, I will only be able to offer limited help.

Is this a trunk car or hatchback?

If hatch go with a box 1.25-1.5cuft internal with (2) 4 by 12 in ports

I prefer Actual Aero-POrts, I know some companys in finland and germany carry them but dont know about down there

Wow man,you are excellent in this...Win ISD now show me with this parameters +16,2dB gain @ 56Hz...wow, excelent one, many thanks...

only one question..can I place airport (round shaped) into top of box? or better place is front wall?

and damping material?should i use?

Many thanks i love you

:-)

I like this forum

jeffchilcott

Platinum - Posts: 2,483

Joined: April 11, 2002

Location: United States

Posted: December 14, 2006 at 5:22 PM / IP Logged

in that car, I would suggest subwoofer firing up. and ports firing back towards the tail lights

Have the box almost all the way towards the drivers side as well.

Hope this helps, let us know how you do!

2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

2007 USACI World Champion

2007 World Record

2006 USACI Finals 2nd Place

jeffchilcott

Platinum - Posts: 2,483

Joined: April 11, 2002

Location: United States

Posted: December 14, 2006 at 5:24 PM / IP Logged

I would suggest tyring to stay away from dampining material. I have knows alot of people who try to use it in competing....then they end up losing, and never get back what they lost.

Some cars it helps, others it hurts.

If you want to try, start in small areas and find someone with a meter to test with to see if it gains or loses

2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR

2007 USACI World Champion

2007 World Record

2006 USACI Finals 2nd Place

miniiso

Member - Posts: 5

Joined: December 12, 2006

Location: India

Posted: December 15, 2006 at 10:44 AM / IP Logged

Many many many thanks goes to you :-)

I dont know how to expres my enthusiasm that you helped me

THANKS and BIG RESPECT

Next Page >

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.