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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Our others points are almost exactly the same. I forgot I have a pair of drivers mounted on BiRadial x horns. But still, when you are listening in that spot, boy it’s so sweet Should you consider a pair of the ‘s, I have a pair sitting in storage. So, the a is going to have a horizontal dispersion that is ever narrower then 60 degrees, at your 6 KHz higher crossover point.
Since, you are also suggesting on using a 12″ driver as a low-mid range driver. But there are still some small changes in the horizontal dispersion as well. The A and the both have the same x degree coverage. I agree that the is far too “long throw” for your room. On the point of coverage, the a would do a better job.
Unfortunately, that “sweet spot” is pretty small. Try an Hz crossover for the The 22385a match for the would be the A Bi-Radial horn. The is nice but the is even better. The delay due to driver distance needs attention on this system. One advantage not mentioned is the pattern control on the “large format” series over the flat-front series.
Hi Lutz I can fully understand what you mean by the ‘s “sweet spot”. The matched up well with the I use A horn with h drivers in my ht.
If you try to match the horizontal dispersion of each of the components, then mbl response will be smoother off axis as well as on axis.
I have done this and it sounds pretty darn good. Blaster, Thanks for the reply, I didn’t even think of a A. Orginally I paired up the Renkus-Heinz horn with a bullet which I still havebut wasn’t happy with the HF coverage. Baron, One more thought!
And jbp, that explains why nobody makes a larger version of the A. I had A’s on the system initially and preferred the A’s.
Hi Lutz What other components are you planning on using with the or horn? I would strongly recommend going with a slightly higher crossover point of Hz with jbo a. Also thanks for sharing your Xover points. Forum members who have made room for them, even temporarily, report quite good results. I personally think that you would find that the a has too narrow 285a coverage. You can tell the TRUE audiophiles by the size of their horns, eh?
JBL 60° Biradial Horn
The frequency response was a little choppy. Others, have brought up the a horn as a possibility. I have used nearly all 2″ horns jbl has made in various projects and while the will give you 2385x wide dispersion, the X series of 1. I think based on what you are doing I will try moving my Xover point for my a little higher.
And switching to Hz cleared things up nicely. This does make a difference when there aren’t any reflective walls and jbk crossover point is low.
If you remove the snouts on your ‘s, you can bolt them onto 1. Or, if you really like therun two of them with a degree angle between them.
JBL 2385A 60×40 Bi-Radial Horn (500 Hz)
Your right, it does match the ‘s. I feel the shorter throw horns sound better in a room. But, assuming for a moment, that you really got your heart mbl on a 2″ throat Flat-Front Bi-Radial Horn, then swapping out the for something else might be a better choice. Hi Lutz, I have run all three flat front horns in all different sizes of room.