The January 2012 issue of Audio Xpress magazine has a revision of the JBL L300 by none other than Nelson Pass!
http://www.mygazines.com/issue/50140/11
The January 2012 issue of Audio Xpress magazine has a revision of the JBL L300 by none other than Nelson Pass!
http://www.mygazines.com/issue/50140/11
LOL, he probably just slapped a billet aluminum faceplate on it and a blue LED.
Now, now... It's a good read and interesting DIY mod.
Nelson Pass is an amazing man. He gives so much of his time and energy to help others enjoy this hobby... and he is genuinely gifted as an audio designer as well. Thank you "10" for posting the link... and thank you Nelson Pass for taking the time to share your journey!
Widget
Yeah it is. Did you dig the 8 ohm series R in the horn circuit?! Also, very simple circuit and another way to eliminate the tapped coil. But the overall impedance has gotta be . . . changed significantly. Edison at work, like he said. 6 db, single pole tweeter with 1uF cap. Back to basics. Cool.
Thanks for posting this !
I may try this if and when I finish all the other projects ... Hopefully , GT will show Harmon the appropriate digit and set up shop with NP . WOW ! Can you imagine the frenzy that would cause in Japan ?
I silly dream I know ,but dreaming is still free !
Luvin Blue LEDs , Rich
Interesting read, thanks!
Here are the relevant pages extracted in PDF
Hi Rich,
I know you are busy .. and I have heard your latest project. I am kinda torn about this upgrade. Firstly, Comparing my pair of 4343s against L300s "out of the box", IMHO, the 4343s run rings around them. Personally .. treading on ice here, I found my original L300s to be boomy and aggressive in mid/highs. The 4343s cured pretty well all of that. It would be nice to do all this with fewer units and simpler crossover and once the active crossover (on my project) is in place I should be able to simplify the passive part on the three top units in my 4343s and that is about as far as I would go. I am not convinced that these older horn units can be extended and tamed to cover accurately a broader audio spectrum. Can anyone nearby demo that I am wrong...please?
Having said all of that, I would love to hear the L300s again... especially with Nelson's new crossover.. so let me know when you are ready and I shall be on your doorstep
George
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