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JBL E-140s, Suitable Cab?

Discussion in 'Amps and Cabs [BG]' started by Count Bassie, May 13, 2018.


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  1. Count Bassie

    Count Bassie Supporting Member

    Jun 10, 2006
    Smithfield, RI
    Greetings. I've got two of these old things, I am somewhat edjicated on them. I'm seeking to use them with my Acoustic 370 head, and need a suitable 215 cab.

    I'm not trying to redesign the basics, that's way more complex than I want to get... just trying to make a noise I like, and I dig an era. Even inexpensive drivers may be arguably more efficient than the E-140, I know the tree I'm barking up! Lol...

    Any helpful advice is way welcome! As is good humor. I'm just trying to get a sound I dig, play some music, have some fun at it.

    Thanks for your time.
     
    Last edited: May 13, 2018
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  2. agedhorse

    agedhorse Supporting Member Commercial User

    Feb 12, 2006
    Davis, CA (USA)
    Development Engineer-Mesa, Product Support-Genz Benz
    There are TS parameters that have been extracted for them, run the numbers and see what works.
     
    2tonic likes this.
  3. Iirc the standard JBL bass cab is 4ft^3 with twin 4''dia ports 6.25'' long.
     
    JRA likes this.
  4. BogeyBass

    BogeyBass

    Sep 14, 2010
    Acoustic 406 wide be good partner for that 370

    Airspace and tuning work out well actually for that driver
     
    maxschrek likes this.
  5. agedhorse

    agedhorse Supporting Member Commercial User

    Feb 12, 2006
    Davis, CA (USA)
    Development Engineer-Mesa, Product Support-Genz Benz
    I don't think there was any depth to the ports (other than the baffle thickness) on the early JBL cabinets that used this driver (I recall the original MI cabinets being the Cabaret series, before those were some adapted 4600 series cabinets)

    [edit: found my JBL factory service/support binder, the nomagraph for 2 x D-140's at a minimum of 4.7CF and 36 square inches of port area with no port depth other than the 3/4" baffle thickness. The preferred cabinet size is at least 7.5CF and about 36 sq in of port area. The Cabaret cabinet I was thinking of was the 4625 and it was a single E-140 and is about 5.25 CF. There were also some custom shop products, but not usually seen in the MI world]
     
  6. My memory is not so bad. Googled jbl e140 pdf download cabinet. Got JBL pro enclosure guide.

    Chart 6 for e140 is what I gave but 6.5" port lengths.
     
  7. agedhorse

    agedhorse Supporting Member Commercial User

    Feb 12, 2006
    Davis, CA (USA)
    Development Engineer-Mesa, Product Support-Genz Benz
    For a single 15, that might be right because the port area is larger for that box size.

    The original D series nomagraphs do not show any port depth because it wasn't necessary with the proper port area. Go beyond this area and port depth will of course grow.
     
  8. Check out Chart 10 for dual E140. 8ft^3 is more donk than most! 4x 4" ports but 5" long. Agedhorse might be able to explain that.
     
  9. Count Bassie

    Count Bassie Supporting Member

    Jun 10, 2006
    Smithfield, RI
    Big boxes! I was just going to stick em in an old 106...
     
  10. agedhorse

    agedhorse Supporting Member Commercial User

    Feb 12, 2006
    Davis, CA (USA)
    Development Engineer-Mesa, Product Support-Genz Benz
    Run the numbers with that box and see how close you are.
     
    2tonic likes this.
  11. Count Bassie

    Count Bassie Supporting Member

    Jun 10, 2006
    Smithfield, RI
    I don't have it here, but can get the #s I think.
    Nu
    Me asznwhile I found an old thread here that mentions an EBS-3 cab, can't find anything specific on it though...

    Screenshot_2018-05-14-02-43-08. Screenshot_2018-05-14-02-43-08.
     
  12. JBL Sugarscoop!
     
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  13. BogeyBass

    BogeyBass

    Sep 14, 2010
    Really any basic Theile Small cabinet. Depending on application
    JBL has put those in 3 to 5 cubic feet.

    For musical instrument use the standard 3 to 4 cubic feet per driver at 40hz
    Acoustic220cabs.
     
    zon6c-f and Count Bassie like this.
  14. Ah the memories I have of dragging around my Acoustic 106 cab...
     
  15. JRA

    JRA my words = opinion Supporting Member

    nice driver, IMO. too heavy for me these days but i've used a lot of D's, E's, and K's in the past. but if you can go with the big boxes and the weight = fun! hope it works out...let us know...good luck! :thumbsup:
     
    Count Bassie likes this.
  16. Count Bassie

    Count Bassie Supporting Member

    Jun 10, 2006
    Smithfield, RI
    Lol, no...

    Stop doing that, ok?
    Thanks, will do shortly I hope!
     
    Last edited: May 14, 2018
    zon6c-f, 2tonic and JRA like this.
  17. 70spbase

    70spbase Fender/Ampeg for over 30 years!Portaflex #449 Supporting Member

    Nov 30, 2011
    Vegas
    I built this a couple of years ago out of 3/4" birch. Ampeg BT-25 model simulated -42x24x15 same speakers and it sounds boss
     

    Attached Files:

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  18. higain617

    higain617

    Sep 12, 2013
    WA
    I don't have one to measure, but didn't the old Sunn 200S cabs use those? If so, those were fairly compact.
     
    zon6c-f and Count Bassie like this.
  19. FranF

    FranF Supporting Member

    Jul 25, 2004
    Northeastern PA
    The Sunn cabinet is splendid....
     
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