Page 2 of 4 FirstFirst 1234 LastLast
Results 16 to 30 of 47

Thread: 2203 Subs

  1. #16
    Obsolete
    Join Date
    Apr 2003
    Location
    NLA
    Posts
    12,193
    Yes

    ~ 3 cu ft tuned to ~ 30 Hz

    LE120HS

  2. #17
    Senior Member Guido's Avatar
    Join Date
    Apr 2003
    Location
    Germany
    Posts
    2,503
    Quote Originally Posted by Giskard
    Another example:

    Dual 2203H in 3.2 cu ft tuned to 26 Hz with JBL BX63.
    This looks damned wallshaking

    Thanks for the excellent support with this!

  3. #18
    Senior Member Guido's Avatar
    Join Date
    Apr 2003
    Location
    Germany
    Posts
    2,503
    OK, I put them into 3.2 quft with bass bump at 30Hz as my sub module can't lower.

    I get a strange problem with cone displacement between 30 and 50 Hz.
    What to do ?
    Attached Images Attached Images  

  4. #19
    Obsolete
    Join Date
    Apr 2003
    Location
    NLA
    Posts
    12,193
    Tuned to 30 Hz with bump filter centered at 30 Hz try something like a 4 dB bump instead of a 6 dB bump.

    Have you built anything yet and listened to it or are you still planning?

  5. #20
    Senior Member Guido's Avatar
    Join Date
    Apr 2003
    Location
    Germany
    Posts
    2,503
    I'm still waiting for the 2202 baskets, so currently I'm just planning.

  6. #21
    Senior Member Guido's Avatar
    Join Date
    Apr 2003
    Location
    Germany
    Posts
    2,503

    Unhappy Again help needed

    OK, I can't get this into BB6

    My Sub Module has a subsonic filter with 24dB/oct at 20Hz means -3dB at 20 Hz, right?
    Further I have a parametric EQ variable between 30 and 50Hz, Q~1,2 and bass boost 0 to +6dB
    Lowpass Filter is 50 to 150Hz, 18dB/oct

    Any help appreciated.

  7. #22
    Obsolete
    Join Date
    Apr 2003
    Location
    NLA
    Posts
    12,193
    The "easiest" thing is to plug the whole schematic into pspice.

    Where's the schematic and I'll try to do it for you.

  8. #23
    Senior Member Guido's Avatar
    Join Date
    Apr 2003
    Location
    Germany
    Posts
    2,503
    Thanks for that offer Giskard. Prob is that I do not have the filter schematic

    This is driving me mad.

  9. #24
    Obsolete
    Join Date
    Apr 2003
    Location
    NLA
    Posts
    12,193
    Send them an email and see if you can get a service manual from them.

  10. #25
    Obsolete
    Join Date
    Apr 2003
    Location
    NLA
    Posts
    12,193
    Ok, let's see what happens here.

    Dual 2203H
    Vb = 3.2 cu ft
    Fb = 30 Hz
    80 Hz 18 dB/octave low pass
    30 Hz 12 dB/octave bump filter with variable Q

    Red = Q of 0.96 (+1 dB)
    Grn = Q of 1.13 (+2 dB)
    Blu = Q of 1.30 (+3 dB)
    Mag = Q of 1.49 (+4 dB)

    I suppose I wouldn't go higher than Q of 1.5 I guess.
    Q of 1.49 just starts to push past xMax.
    Q of 1.49 reduces max electrical input from 200W to ~ 185W
    You're above 116 dB with 185W in.

    Build it, see if it works, see if it blows up. If it does, don't send us the bill.
    Attached Images Attached Images  

  11. #26
    Senior Member Guido's Avatar
    Join Date
    Apr 2003
    Location
    Germany
    Posts
    2,503
    I knew it... with 2203s you can't resist

    Looks very very good. This will get SOMETHING with the biased 4313 clones
    Attached Images Attached Images    

  12. #27
    Obsolete
    Join Date
    Apr 2003
    Location
    NLA
    Posts
    12,193
    Yeah, it's a potent little sub considering it's size. Similar in size, VLF response and total air movement to a single Citation 7.4 but with ~ 4 dB more efficiency and ~ 50W greater power handling ability.

    I might be inclined to make the baffle kind of a V shape to fire each 2203H into the room at a slight angle. I don't know, something like 5 or 10 degrees maybe.

  13. #28
    Senior Member Guido's Avatar
    Join Date
    Apr 2003
    Location
    Germany
    Posts
    2,503

    Reconing done

    Here they are

    They look pretty dangerous

    Today I start cabinet building.
    Attached Images Attached Images  

  14. #29
    Obsolete
    Join Date
    Apr 2003
    Location
    NLA
    Posts
    12,193
    Quote Originally Posted by Guido
    They look pretty dangerous


    Those look like pretty good recone jobs dude! Better than factory!

  15. #30
    Senior Member Guido's Avatar
    Join Date
    Apr 2003
    Location
    Germany
    Posts
    2,503
    Today I sprayed the primer

    I'll have to do it more precise this time as I want to spray the sub in glossy black. Well not piano finish but I'll try my best

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. 2235 subs - standard ported alignment Vs EBS
    By Doogster in forum Lansing Product General Information
    Replies: 12
    Last Post: 01-16-2005, 02:29 AM
  2. Searched to no avail - where to get 2203 recones?
    By cgaither in forum Lansing Product Technical Help
    Replies: 1
    Last Post: 12-29-2004, 06:00 AM
  3. 2242's for top right & left subs
    By JuniorJBL in forum Lansing Product General Information
    Replies: 13
    Last Post: 02-18-2004, 01:23 AM
  4. 2204 recone in 2203
    By sa660 in forum Lansing Product Technical Help
    Replies: 1
    Last Post: 04-25-2003, 10:55 AM

Posting Permissions

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