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Drivers with great SPL for low powered amps

Discussion in 'Amps [BG]' started by webmonster, Jun 28, 2013.


  1. webmonster

    webmonster

    Joined:
    May 19, 2013
    Location:
    New Zealand
    I saw a thread here recently about JBL 15's and I was very interested to see that the E130(?) has an exceptional SPL of 105dB. Very handy for older low-powered amps like my Jansen 75 or Selmer 50!

    Do correct me if I am wrong, but the E130 is not being made anymore and is expensive to re-cone.

    Is there a current production 15" driver with similar sensitivity?

    I've also got a late 1960's Jansen 2x12 cab that I'd like to replace the drivers in - any suggestions for 12" drivers with similarly good sensitivity?
     
  2. Downunderwonder

    Downunderwonder

    Joined:
    Aug 26, 2009
    Location:
    New Zealand
    E140 aren't too hard to find in old PA cabs here in NZ.
     
  3. jnewmark

    jnewmark Supporting Member

    Joined:
    Aug 31, 2006
    Location:
    Stax 1966
    Disclosures:
    Play guitar.
    Was'nt the E130 a guitar speaker ? The E140 was the bass MI driver, and they pop up on Ebay regularly. Even better, imho, is the K140, which has a little better Xmax, and has a sweeter tone for bass.
     
  4. ezstep

    ezstep

    Joined:
    Nov 25, 2004
    Location:
    north Louisiana

    Expensive compared to purchasing a new, raw speaker? Really?
     
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  6. alexclaber

    alexclaber

    Joined:
    Jun 19, 2001
    Location:
    Brighton, UK
    Disclosures:
    Director - Barefaced Ltd
    Not so handy if you want your low-powered amp to produce any bottom - sensitivity that high from a single direct radiating 15" means the driver is very heavily electrically damped and won't do anything in the lows.

    If you want to use a low-powered amp at reasonable SPL then you'll need plenty of cone area and a large cab.
     
  7. Frankiebass59

    Frankiebass59

    Joined:
    Feb 1, 2008
    Location:
    Kansas
    I had Don Oatman (LDS) build me a couple of single 15" cabinets loaded with Eminence Delta Pro 15A's. 101.6 db sensitivity for my 100 watt B-15 clone and they sound great. Plenty of volume to gig with compared to my other high power lower sensitivity cabinets. And they even stand up to and sound teriffic with my Aguilar DB750. Highly recommended, and Don builds a killer cabinet.
     
  8. Downunderwonder

    Downunderwonder

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    Aug 26, 2009
    Location:
    New Zealand
  9. Vince Klortho

    Vince Klortho

    Joined:
    Jan 8, 2013
    Location:
    Squierville, California
    It is unclear what you mean by "exceptional SPL of 105dB". Is that a maximum level or sensitivity rating ?

    These days Faital speakers seem to be considered similar to JBLs in quality and tone. Eminence also has some speakers that are very high quality and there are others. You should be aware that they are a bit on the expensive side of the spectrum.
     
  10. iualum

    iualum

    Joined:
    Apr 9, 2004
    Location:
    60453
    LDS is aces.

    www.LowDownSound.com
     
  11. webmonster

    webmonster

    Joined:
    May 19, 2013
    Location:
    New Zealand
    Thanks for all your responses. I've found the original thread I read where John_K compares several JBL 15" drivers for tone and specs:
    http://www.talkbass.com/forum/f15/vintage-15-jbl-comparisons-w-soundclips-809918/

    From what I can find JBLs are expensive to recone and they only supply kits to their authorised repair agents. In 2011 John_K gave an example of a JBL recone cost of USD$264-$300.
    I've recently had an unknown student in my Music Dept. make a hole in a JBL speaker for a guitar amp. Advice I've had from my P.A. & sound company is that there are two JBL repairers in NZ and it will be expensive.
     
  12. ::::BASSIST::::

    ::::BASSIST:::: Progress Not Perfection. Supporting Member

    Joined:
    Sep 2, 2004
    Location:
    Vancouver, BC Canada
    How does the Eminence 3015HO compare?

    Seems fairly efficient from my experience.
     
  13. webmonster

    webmonster

    Joined:
    May 19, 2013
    Location:
    New Zealand
    Yes, that is the one I've got my eye on. I was wondering if there was anything more efficient available.
     
  14. AstroSonic

    AstroSonic Supporting Member

    Joined:
    Dec 10, 2009
    Location:
    rural New Mexico
    +1 There is really no getting around this.

    Pick a driver (8, 10, 12 or 15 inch) with the tone you want and with moderate sensitivity (93-98db/w/m). Then use multiples. You could make stackable cabs (like 2x10's or 2x12's).
     
  15. 1n3

    1n3

    Joined:
    Sep 13, 2007
    Location:
    USA
    The 3015 is about as sensitive as a JBL E-140; ~100dB (1W/1M). But those are average sensitivity numbers, and don't tell the whole story. As Alex Claber has said, the E-130 gives away low-frequency performance to achieve it's high average-sensitivity number.
     
  16. Jeff Scott

    Jeff Scott Don't just TalkBASS - PlayBASS! Supporting Member

    Joined:
    Apr 11, 2006
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    A lot of folks don't look at frequency response graphs; usually the high sensitivity is in the mid range area with bass response way down by comparison.
     
  17. Vince Klortho

    Vince Klortho

    Joined:
    Jan 8, 2013
    Location:
    Squierville, California
    In the case of the 3015, 1 KHz, which is usually where sensitivity is measured, is within its "flat" range (+/- about 2dB) and this is true of many speakers although some speakers are not that flat. Many speakers also have a rise in response that begins just above 1kHz, including the 3015. BTW - that site, US Speaker, has response curves for many speakers.
     

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