View Full Version : JBL SR crossover for hifi?

09-16-2013, 04:00 AM
I would like to have an passive crossover for my 2x2226/2447 system. I found this (http://www.ebay.com/itm/JBL-Crossover-Network-for-SR-4731X-/290736255417?pt=US_Pro_Audio_Speaker_Drivers_Horns&hash=item43b13b31b9) crossover for JBL SR4731x (2x2206/2447) so I think it should work OK, but is this "good enough" or am I better of building myself? http://i.ebayimg.com/t/JBL-Crossover-Network-for-SR-4731X-/00/s/MjU3WDI2MA==/$(KGrHqIOKj!E5V1Co5wrBOfeES(phg~~60_35.JPG

Earl K
09-16-2013, 06:33 AM
That crossover is meant to match the horn level to woofers with lower sensitivity ( compared to what you own ) .

It won't work very well ( at all ) with twin 2226's . It's also a SR ( sound reinforcement ) crossover ( meaning it is most likely only "flattish" out to 10K ) .

Simply pay someone ( from ) within your local area to design & build ( after measuring your speakers ) a proper HiFi crossver that is balanced to your woofers & that goes out to 15K.


09-16-2013, 06:41 AM
Thanx, I'll stay away for this than :) It was meant for my HT setup but the system is also used for music so it's important that it sound pretty good with music also.

09-16-2013, 05:05 PM
neither crossover has *any* real attenuation for the HF - schematics here:


Both cross over at 1.2K

The component selection and usage is slightly different for the transition point since 15's are beamier than 12's but they are close in sensitivity ( 98-100 ) .

A SMALL amount of active EQ would be adequate without spending all the expense of tweaking horns that most forum members "shun"..:) Adding a ringing circuit to this size diaphram ( aka the 4430 ) is not reccomended. If possible, use a coated dia.