View Poll Results: What would be the best driver for the 200-800Hz region?

Voters
30. You may not vote on this poll
  • 2122H

    11 36.67%
  • 2202H

    10 33.33%
  • somthing else

    9 30.00%
Page 1 of 3 123 LastLast
Results 1 to 15 of 32

Thread: 2122H vs 2202H for 200-800Hz

  1. #1
    Senior Member pos's Avatar
    Join Date
    May 2007
    Location
    France
    Posts
    2,628

    2122H vs 2202H for 200-800Hz

    Hello,

    What would be your preference between a 2122H and a 2202H for the 200Hz to 800Hz region (or maybe 250-1000)?

    That driver would sit between a 2245H and a 2435H mounted on a H9800 horn.

    The question could also be rephrased as "Which speaker is you favorite in the low mid between the 4345 and the 4355?"

    thanks

  2. #2
    Senior Member
    Join Date
    Apr 2003
    Location
    GTA, Ont.
    Posts
    5,109
    - Altec 414-8C is my first choice of midranges to try to voice with that specific combo ( I don't have any , so it's just wishfull thinking ) .

    - I don't like the 2202H at all .

    - I like virtually every ten inch that JBL has made . ( ie ; 2122H is my second choice ).

    <

  3. #3
    Senior Member pos's Avatar
    Join Date
    May 2007
    Location
    France
    Posts
    2,628
    I have never looked at these Altec drivers. Will do, thanks!

    I don't like the 2202H at all .
    Why is that? I have read somewhere that it could be considered "slow" compared to the lighter 10". Is that your grief?

  4. #4
    Senior Member
    Join Date
    Apr 2003
    Location
    GTA, Ont.
    Posts
    5,109
    Quote Originally Posted by pos
    Why is that? I have read somewhere that it could be considered "slow" compared to the lighter 10". Is that your grief?
    Perhaps it's because I was exposed to this midrange ( 2202a & H ) in the Sound Reinforcement business over a long period of time ,,,that I became convinced the driver has a problem wherein the driver seems to produce overtones of it's own .

    Only a complete ETF analysis of the woofer ( including a CSD "watefall" obtained from within an anechoic chamber ) would expose what I think it's problems are . Since that's not about to happen , I just steer clear of the driver .

    "Slow" doesn't have much to do with it / in fact , I would likely prefer to add a coating of aquaplas to the cone to see if that would "fix" my perception .


  5. #5
    Administrator Robh3606's Avatar
    Join Date
    Apr 2003
    Location
    Rocinante
    Posts
    8,170
    Either a 2122 or a 2123. I use a 2123 with a PTH1010 driven by an aquaplassed 2435. Works for me.

    Rob

  6. #6
    Senior Member
    Join Date
    Nov 2003
    Location
    Toronto
    Posts
    1,162
    Quote Originally Posted by Robh3606 View Post
    Either a 2122 or a 2123.
    Rob
    I'll second those choices. Make sure you go with a CC nework, too.

  7. #7
    Senior Member pos's Avatar
    Join Date
    May 2007
    Location
    France
    Posts
    2,628
    I need a driver that can go down to 200 or 250Hz without problem.
    The 2123 I own seems weak down there, and needs eq.

    Looking a the 2202 spec sheet the curve looks good down to 200Hz, but my simulations using the published T/S parameters tell another story, with a rolloff similar to the 2123 starting at 300hz...

    4313B prefers the 2202 over the 2123 when used under 800hz: http://www.audioheritage.org/vbullet...read.php?t=104

    MikeM finds it slowish: http://www.audioheritage.org/vbullet...0&postcount=12

    The 2122 has a lower Fs than the 2123 and seems more confortable in the 200Hz region. So what about 2202 vs 2122 specifically?

  8. #8
    Senior Member pos's Avatar
    Join Date
    May 2007
    Location
    France
    Posts
    2,628

  9. #9
    Senior Member grumpy's Avatar
    Join Date
    Oct 2003
    Location
    SoCal
    Posts
    5,742
    ... beyond individual driver preference, it might be useful to also consider
    in-system sensitivity matching, space requirements ("doghouse", baffle layout),
    intended use (SPL goals/limitations), ... Although, starting with a nice
    mid-bass driver and working out the rest to suit, strikes me as a reasonable
    method as well.

    Unless I already had other drivers in-hand, the 2122H is what I'd start looking to
    get/assemble if finesse vs. slam were the intent.

  10. #10
    Senior Member spkrman57's Avatar
    Join Date
    Feb 2005
    Location
    Columbus, Ohio
    Posts
    2,018

    I have a 2202 recone of a D131 to try out soon

    I bought these from a friend who reconed a D131 with a 2202 cone.

    I noticed the magnet is slightly larger on the D131 than with stock 2202 core.

    I'm curious what will be end result of this "Franken-driver".

    I'm thinking of using them in back loaded corner horns up to 800hz.

    I'll post the results in the future when I can get them broke in and running.

    Regards, Ron
    JBL Pro for home use!

  11. #11
    Senior Member
    Join Date
    Apr 2003
    Location
    Australia
    Posts
    7,942
    This hase been discussed before.

    The 9800 horn is intended to be matched to a large diameter driver with a deep profile.

    Technically The 2122 on Bass box sims is a better candidate than the 2123 at the bottom end.

    The 2202 is shit house being 5db or more less output @100hz.

    Provided you dont push it too hard the 2122 will work okay with max output of 116 db in 0.5cu ft sealed. Run it full range an it will be 5.5 db down at 100 hz

    Grab yourself Bass box and mess with some trial sims and you will soon understand.

    However, I would not recommend the configuration you are looking at as you will have significant time alignment and crossover blending issue with that horn and driver.

    You would be better served to look at a 1200FE driver (if you can wait 12 months) or 2234 (2235without mass ring).

    The 2234 (as used in the venerable 4435) is a very impressive driver and would work well at both ends. See if you can find a 2235 frame and have it reconed asa 2234 or remove the mass ring of the 2235 carefully. If you add a second 2234 and load it like the 4435 you could dump the 2245 and biamp the horn.

  12. #12
    Administrator Mr. Widget's Avatar
    Join Date
    Apr 2003
    Location
    San Francisco
    Posts
    9,720
    Quote Originally Posted by Earl K View Post
    - Altec 414-8C is my first choice of midranges to try to voice with that specific combo ( I don't have any , so it's just wishfull thinking ) .

    - I don't like the 2202H at all .

    - I like virtually every ten inch that JBL has made . ( ie ; 2122H is my second choice ).

    <
    I have a pair of older Altec 414-Z drivers I'll eventually get around to trying. I am really curious about them. The fellow I sold my 4355 clones to ended up using a pair of them in those cabinets.

    I agree with you about the 2202. I think it is a large part of why I am not crazy about the 4350/55s.

    I also agree that the 10" JBLs in general are all quite outstanding woofers for their intended applications.



    Widget

  13. #13
    Senior Member Guido's Avatar
    Join Date
    Apr 2003
    Location
    Germany
    Posts
    2,503
    I'm with Ian.

    2 2234H per side in an 2234 low end configuration. The second 2234 crossed over to the H9800 around 800Hz.

    Yeah!

  14. #14
    Senior Member
    Join Date
    Apr 2003
    Location
    Australia
    Posts
    7,942
    I might even do that with my 2435 be drivers if I can find a 9800 clone since the current crop of consumer horns appear NLA (perpetually backordered)

  15. #15
    Senior Member pos's Avatar
    Join Date
    May 2007
    Location
    France
    Posts
    2,628
    Quote Originally Posted by grumpy View Post
    Unless I already had other drivers in-hand, the 2122H is what I'd start looking to
    get/assemble if finesse vs. slam were the intent.
    Yes, the smaller the doghouse the better, and in this regard the 2122H is a better choice! Finesse is definitely what I am looking for but... I want some fine slam!
    thank you!

    Quote Originally Posted by Ian Mackenzie View Post
    The 9800 horn is intended to be matched to a large diameter driver with a deep profile.
    (...)
    However, I would not recommend the configuration you are looking at as you will have significant time alignment and crossover blending issue with that horn and driver.

    You would be better served to look at a 1200FE driver (if you can wait 12 months) or 2234 (2235without mass ring).
    Yes, that is one of the reason I hesitate between the 12" and the 10".
    I remember reading Bo's comments about the 4345+H9800 he listen to at Rich's place (this is the one H9800 clone pair I will be using, by the way!). He found it didn't blend well, and you offered the explanation of the mismatch in radiation area between the 10" and the big horn.
    My initial plan was to use a rectangular PT wave guide above the 10", but then Rich offered his H9800 in the marketplace and I could not resist...
    The 1200Fe, as in GT's DIY, is in fact hard to get and costly (specially in france: we pay twice the figure US customers pay, plus this figure in in €...).
    I was even thinking about trying the 128H from my 4412 in a closed box. I think the 1200Fe is an evolution of the 128H the LE120H is, and the 1200Fe looks similar), with an only slightly higher sensibility, so maybe it could work...? I really like the midbass of my 4412.
    What other 12" could do the trick? Some TAD?

    The time alignment and sensitivity issues will be dealt with a digital active crossover.

    Quote Originally Posted by Ian Mackenzie View Post
    The 2234 (as used in the venerable 4435) is a very impressive driver and would work well at both ends. See if you can find a 2235 frame and have it reconed asa 2234 or remove the mass ring of the 2235 carefully. If you add a second 2234 and load it like the 4435 you could dump the 2245 and biamp the horn.
    Quote Originally Posted by Guido View Post
    I'm with Ian.

    2 2234H per side in an 2234 low end configuration. The second 2234 crossed over to the H9800 around 800Hz.

    Yeah!

    But I really like the sound I hear from my 2123 (if only it could go lower).
    2234 are also hard to come by here. I have only managed to obtain one 2205 basket that I could recone. I would need 3 more. And the price for reconing these is almost as high as reconing a 2245H.
    Well, that is something I will keep in mind! Thank you.

    Quote Originally Posted by Mr. Widget View Post
    I have a pair of older Altec 414-Z drivers I'll eventually get around to trying. I am really curious about them. The fellow I sold my 4355 clones to ended up using a pair of them in those cabinets.

    I agree with you about the 2202. I think it is a large part of why I am not crazy about the 4350/55s.

    I also agree that the 10" JBLs in general are all quite outstanding woofers for their intended applications.
    Widget, Don't you have a DIY setup with a Sub1500 + 8" (2108H?) + tad horn? What do you think about the blending issue betwwen a 10" and a H9800? This blending issue is sometinh I will already be able to look at with my 2123, as soon as I can test the H9800.

    I will be looking for these old Altec woofers !

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 2122H Questions
    By Rex Mills in forum Lansing Product Technical Help
    Replies: 26
    Last Post: 08-23-2011, 07:31 AM
  2. JBL 2012h & 2122h
    By jblfan in forum Lansing Product Technical Help
    Replies: 7
    Last Post: 12-10-2006, 01:48 AM
  3. Midrange JBL 2202H and 2123H
    By Niklas Nord in forum Lansing Product General Information
    Replies: 12
    Last Post: 08-29-2003, 01:51 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •