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Thread: JBL L-45 Flair (S4 Loaded)

  1. #1
    Junior Member Steve w/cheeks's Avatar
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    Question JBL L-45 Flair (S4 Loaded)

    It seems there are very few of these L-45's around, I think most were sold as a super L-100's with the mid and tweeter setup. Mine are a S4 setup which has a 130A low frequency driver and LE175 High frequency driver combined with the L-91 lense and N1200 crossover. These speakers were discovered in a warehouse, they are missing the grills so I am looking for information on possibly making some but they don't need to look original. The problem is the L91 lense sticking out so far, it makes the frame a bit more of a challenge to make. The bottom left picture is not my speaker but wanted to show part of the grill frame.

    The other thing I question is what makes these speakers so much louder than any of the others I have when set at the same volume setting? they are twice as loud than most and need much fewer watts to get loud. They sound amazing and have the tightest bass output of any speaker I have heard, they seem like they would work well for a large venue, they are just too powerful for a small listeng area in my opinion. Anyone with knowledge on what I have here would be great, I have 20 + sets of speakers and these just plain have a different sound and output. Thanks!Name:  L45 Flair.jpg
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Size:  119.0 KBName:  L45 grill.jpg
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Size:  17.9 KBName:  006.JPG
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Size:  267.3 KB

  2. #2
    Senior Member audiomagnate's Avatar
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    That is a super cool speaker, a 50's driver load hiding in 70's styling. What's up with the one that has an 075 bullet below the lens? I thought it was one or the other, not both.

  3. #3
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    Quote Originally Posted by Steve w/cheeks View Post
    It seems there are very few of these L-45's around, I think most were sold as a super L-100's with the mid and tweeter setup. Mine are a S4 setup which has a 130A low frequency driver and LE175 High frequency driver combined with the L-91 lense and N1200 crossover. These speakers were discovered in a warehouse, they are missing the grills so I am looking for information on possibly making some but they don't need to look original. The problem is the L91 lense sticking out so far, it makes the frame a bit more of a challenge to make. The bottom left picture is not my speaker but wanted to show part of the grill frame.

    The other thing I question is what makes these speakers so much louder than any of the others I have when set at the same volume setting? they are twice as loud than most and need much fewer watts to get loud. They sound amazing and have the tightest bass output of any speaker I have heard, they seem like they would work well for a large venue, they are just too powerful for a small listeng area in my opinion. Anyone with knowledge on what I have here would be great, I have 20 + sets of speakers and these just plain have a different sound and output. Thanks!Name:  L45 Flair.jpg
Views: 5223
Size:  119.0 KBName:  L45 grill.jpg
Views: 6153
Size:  17.9 KBName:  006.JPG
Views: 6319
Size:  267.3 KB
    Hi could you please post some details of the grille frame?...I have to rebuilt them since mine are missing...thank you cheers

    Rob

  4. #4
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    JBL L45 Flair w/S4 speakers

    Quote Originally Posted by bond.70 View Post
    Hi could you please post some details of the grille frame?...I have to rebuilt them since mine are missing...thank you cheers Rob
    I bought a pair of those speakers 50 years ago and they still sound fabulous. You’ll have to get someone to build a frame that comes out about 4 inches just like the picture shows. And then cover with a sound transparent cloth not an easy job, but they sound great without covers. They are very efficient which is why they get loud with not much power, but they can take quite a bit of power and sound unbelievably good.

  5. #5
    Senior Member jbl4ever's Avatar
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    The 130A woofer is one of JBL’s highest sensitivity 15” non SR drivers they made 101db/1 watt. It is a great woofer but do not expect the last octave out of them 20-40hz with any authority. With this high of efficiency most other JBL speaker systems are 6 to 8 db less. You could add a 077/2405 to extend the bandwidth with a N8000/3106 crossover. Add a nice 18” sub and you will be in heaven

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