Azura horns


2015-06-29 11:23 pm
Hi guys
I've got some azrua (LeCleach) 340 horns with Yamaha 6681b driver's that I'm building as an active setup. To split the signal I have a minidsp. I'm about to try the LeCleach cross over witch is a modified Butterworth with the mid horn out of phase . I have the spreadsheet which has given me the number's.... has anyone tried this approach? Or anything else with these horns that's worth a try.

Thanks Dave

Sent from my D5833 using Tapatalk
Hi Dave,

judging from feedback to be had here, we are the two exotics in the exotics part of the forum caring for compression drive...

@ your Q: i have bought J-322s from Marco Henry / Musique Concrete at the time when Marco and Jean-Marie were attending (JMLC regularly) the ETF.

I still have the horns but used them then with JMLC (600 or 650Hz) "split XO-freq" 18dB Butterworth as per his calculation or top of an 13" IB bass. The mid horns and the bass were replaced with White Whales on a corner horn and demo'ed in ETF a decade later with the same JMLC X/O but handover-freq down to 350 Hz (which obviously the J-322 would be hard-pressed to do).

I compared the JMLC crossover then and again later when switching to the EV horns with two or three other types before i was really convinced. My fear was that it being Butterworth 0,707-damping might not be good enough. But it outperformed a Bessel 24dB and Bessel 3rd order X/O (and a LR24) in the same Clair/Dolby/LabGruppen filter hardware when doing the EV setup.

Hence it's still used today...the JA-6681B's (actually 6603 with 6681 dome and DiY adaptor) soon to be replaced by home-rolled JA-801 comp's, i guess
Last edited: