JBL 2226HPL - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 21st March 2014, 08:21 AM   #1
diyAudio Member
 
Evo8 fq340's Avatar
 
Join Date: Mar 2014
Location: England
Default JBL 2226HPL

Guys I've got my project for my 4 JBL 2226HPL the total output impedance for the four will be 2 ohms. My JBL amp is 2,400 watts rms @ 2 ohms and also see my box design and let me know what you think on my project. Regards guys
Attached Images
File Type: jpg image.jpg (49.6 KB, 178 views)
  Reply With Quote
Old 21st March 2014, 08:38 AM   #2
Mooly is online now Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
Moved to subwoofers.
__________________
-------------------------------------------------------
A simulation free zone. Design it, build it, test it.
  Reply With Quote
Old 21st March 2014, 03:58 PM   #3
diyAudio Member
 
Inductor's Avatar
 
Join Date: Feb 2006
Location: Cascais
Quote:
Originally Posted by Evo8 fq340 View Post
Guys I've got my project for my 4 JBL 2226HPL the total output impedance for the four will be 2 ohms.
Your speaker is tuned very low (~30/32Hz) with a very long port what is good for the excursion protection.
https://www.jblpro.com/pages/pub/components/2226.pdf

Port 4.2" x 15" x 20" (*)
Internal Total for 2 drivers
27.4" x 34.4" x 15" = 231.7 L / 8.18 ft³
Net - Port - Drivers - Angles
231 L - 24 L - 12 L - 5 L = 190 L / 6.7 ft³
*) note: this comments are made with 2 dimensions only (measurements) available by you (pic)

2x JBL 2226HPL
190 L @ 31 Hz
Excursion@25Hz = ~10mm, excursion@20Hz = ~20mm
(this for RMS power@excursion)
Pmin ~2000 W@3 Ohms (2x drivers)
Pmin ~4000 W@1.5 Ohms (4x drivers)

First, there's no need for such a big port (surface/length), and here I didn't check more,
Second, I'm guessing here that your tuning is to low, why? I'm more inclined to the 35Hz and up tuning, again I don't know your design variables/constraints.
Third, this woofer is a 600 W (RMS) driver (8 ohms/Re 5.0 ohms) so your amp seems adequate (+/-) but needs to address the 1.5 ohms without shutting off or you will have to put the two drivers vs. the two speakers in series.
Next pic (#2), what you get with different tuning and port,
2x JBL 2226H, VB = 190.0 L, FB = 35.0 Hz, 104.6 dB2.83Vm
Quote:
Originally Posted by Evo8 fq340 View Post
My JBL amp is 2,400 watts rms @ 2 ohms
  Reply With Quote
Old 21st March 2014, 04:34 PM   #4
bjorno is offline bjorno  Sweden
diyAudio Member
 
Join Date: Mar 2005
Location: Jacobsmountain
Send a message via MSN to bjorno
Hi,

FYI: Single folded option (T-TQWT) to be used in a Home:

b
Attached Images
File Type: jpg JBL-2226HPL.JPG (603.7 KB, 158 views)
  Reply With Quote
Old 21st March 2014, 05:51 PM   #5
diyAudio Member
 
Inductor's Avatar
 
Join Date: Feb 2006
Location: Cascais
In a first glance, and besides the difference in size.
Comparing OP design and bjorno T-TQWT we can find that OP has a "sub" reflex enclosure with F3 60/70Hz and 30Hz@-11.5dB not very dramatic and bjorno's enclosure has F3~33Hz.
  Reply With Quote
Old 21st March 2014, 07:54 PM   #6
diyAudio Member
 
Inductor's Avatar
 
Join Date: Feb 2006
Location: Cascais
Default JBL 2226HPL and the JBL SR4715 sub

edit: I just got that HPL stands for H and JPL for J
Google Image Result for http://www.diysoundgroup.com/images/large/JBL_fun3.jpg

Did you measure the impedance of the driver, isn't it a 16 ohms driver like the JBL 2226J (I don't know, just asking)
They are obtuse (JBL) about the real impedance of speaker and driver.
JBL Thiele/Small Parameters

The JBL 2226HPL can be the same as the JBL 2226H - 8 ohms [Re: 5.0 ohms/Le: 1.75 mH (H)] or the JBL 2226J - 16 ohms [Re: 10.0 ohms/Le: 3.5 mH (J)]. The speakers for the JBL 2226HPL the JBL SR4715 dual 15" sub say in their references that it's 4/5.0 ohms for the 2x drivers meaning if you connect parallel the 2 drivers it will end as a 5 ohm speaker meaning it's a 16 ohms JBL 2226. But the same thing works for a (2x) 8 Ohms paralleled giving a 4 ohms speaker meaning it's a 8 ohms JBL 2226 driver. It can work both ways.

http://www.jblproservice.com/pdf/SR-...es/SR4715X.pdf
http://www.jblproservice.com/pdf/SR-.../SR4715X-1.pdf
http://www.jblpro.com/pages/mi/mi_pdf/SRX%20Series.pdf
http://www.poweraudio.net.au/srx.pdf (AU)
http://www.jblpro.com/pub/obsolete/sreries.pdf (obsolete)

The enclosures (4715) from JBL are very close to your design in post#1, showing sometimes a rectangular port and others a unit with (3x) round vents.

Quote:
The JBL 2226H is one of my all-time favorite midwoofers. And it is capable of producing subwoofer output too, but it is not optimized for that purpose. Most of the things that make it great - its motor structure with shorting rings, it's highly damped cone, it's efficiency - all work best above 50Hz.

So while you can make a good subwoofer using JBL 2226H drivers, I would prefer to use JBL 2235 or JBL 2245 woofers instead. They are tuned for subwoofer use.

Wayne Parham
AudioRoundTable.com: Speaker => Tuning below Fs with JBL 2226H?
Attached Images
File Type: jpg JBL 2226JPL.jpg (93.0 KB, 130 views)

Last edited by Inductor; 21st March 2014 at 08:12 PM. Reason: JBL 2226HPL vs. JBL 2226JPL
  Reply With Quote
Old 23rd March 2014, 07:05 AM   #7
more10 is offline more10  Sweden
diyAudio Member
 
Join Date: Feb 2011
Location: Solna
JBL 2226 ported something I built from srx boxes. This a MLTL style cabinet. As a BR the cabinet is probably a -3db bass shelf, but the MLTL helps lifting the curve. My nephew has actually managed to destroy one of the drivers at a party.

JBL 2226H 30 hz "horn" i built. This one sounds completely different. Much better than the ported box.

PL in HPL stands for Protector Less, i.e. without rubber protector for the magnet. They are from JBL assembled speakers.
  Reply With Quote
Old 23rd March 2014, 10:35 PM   #8
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
SBP - Almighty Subwoofers by Stig Erik Tangen
__________________
Candidates for the Darwin Award should not read this author.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sale: JBL 16" K145, JBL 8" 2118, JBL 2404 HF, Fane ST-5022 (Edgarhorn), Klipsch K55V ZERO1 Swap Meet 3 3rd February 2013 11:03 PM
2 - JBL 123A-1 -- 12" woofers -- from JBL L88, but also L100 Jimmy154 Swap Meet 3 26th October 2012 07:13 PM
Horn enclosures w/ JBL 2226 and JBL 375. burtcheca Swap Meet 0 2nd August 2010 01:21 PM
specs of jbl 046TI-1S and jbl 726gs panduro Multi-Way 2 21st June 2010 07:45 PM
jbl wanted littlefrank Multi-Way 0 25th January 2008 11:39 AM


New To Site? Need Help?

All times are GMT. The time now is 06:39 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2