A – 2″ 60°x 40° FLAT FRONT BI-RADIAL HORN. The A JBL 2″ horn has a very controlled & tight coverage of 60°x 50°. Excellent directivity factor of Find great deals for JBL a 60x 40 Flat Front Bi Radial Horn. Shop with confidence on eBay!. The JBL A Bi-Radial. horn is designed for flush cabinet mounting or compact cluster A has a nominal 60° horizontal x 40° vertical.

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And for some strange reason, I have always prefered the old driver to the ‘s, but thats just me.

The is nice but the is even better. But there are still some small changes in the horizontal dispersion as well. I have done this and it sounds pretty darn good.

Zilch has already done a lot of the hard work involved in designing a system around this pair. Can you post some bjl on it?

A or A [Archive] – Lansing Heritage Forums

Honestly, for me the sounded so much better in the “sweet spot” but I stuck with the jnl because I felt I got better HF coverage in room as a whole. Our others points are almost exactly the same. Fortunately, most of this change is in it’s vertical dispersion pattern. Hi Lutz What other components are you planning on using with the or horn?


JBL a 60x 40 Flat Front Bi Radial Horn | eBay

Lutz, I had a similar setup that ended up as per side 2- 15″ h’s 1- 12″ H 1- 2″ H on a A H tweeter I don’t think it was a jbk system but it had a lot of range. Your right, it does match the ‘s. But, assuming for a moment, that you really got your heart set on a 2″ throat Flat-Front Bi-Radial Horn, then swapping out the for something else might be a better choice. Hi Lutz I can fully understand what you mean by the ‘s “sweet spot”. JBL does or did make large biradial horns of that type–the series.

Others, have brought up the jlb horn as a possibility. Try an Hz crossover for the I personally think that you would find that the a has too narrow a coverage. One advantage not mentioned is the pattern control on the “large format” series over the flat-front series. I use A horn with h drivers in my mbl.

The matched up well with the Make sure that 23885a run the all the way up and just bring the UHF in at 10k or 12k with a 6db rolloff just to fill in the top end. The A and the both have the same x degree 2385s. Based on the fact that the has a 90 degree horz. Thats why I changed to the baby-cheeks.


After in taking into account your comments about room coverage.

I had A’s on the system initially and preferred the A’s. The frequency response was a little choppy.

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Something jb consider is the dispersions characteristics of the other components. You are using 10, I have been at If you try to match the horizontal dispersion of each of the components, then frequency response will be smoother off axis as well as on axis. If you 2358a at the frontal Isobar contour charts, within the a horn’s spec sheets, you will find that the dispersion pattern narrows as it goes higher in frequency.

I feel the shorter throw horns sound better in a room.

On the point of coverage, the a would do a better job. But still, when you are listening in that spot, boy it’s so sweet Here is a picture of a pair of ‘s with the snout removed and mated to a pair of DDS horns that are very jbll to the in pattern.

This does make a difference when there aren’t any reflective walls and the crossover point is low.