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In the Forum: Audio Discussions
In the Thread: Crossover Design
Post Subject: A Happy New Year To AllPosted by Kerry Brown on: 1/6/2012
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Jorge,


You're right about using identical amps. No doubt.


I have not used Dr. Edgar's passive network but I have tried conventional passive networks on Edgarhorns. They worked alright.


And I have used conventional filter networks on other horn systems - including Altec VOTs, JBL Hartsfields, Jensen Imperials and EV Patricians - with OK results.


I have used passive line level networks on tube amps driving Edgarhorns and the system sounded better than it did with conventional speaker level networks.


I have tried the Goldmund active analog crossover and a Behringer active analog crossover and Behringer's best digital active crossover, the DCX whatever it is. They all worked OK, the DCX sounded pretty good. All the active crossovers were more flexible, less problematical and more practical than passive line level filters even if most did not sound as good ( at least in some ways ).


Next I tried the first generation DEQX unit, the PDC 2.6p which was a big step up from the other active crossovers. Over the years DEQX provided online software and firmware updates, each of which improved sonics. The update to 24/96 was quite an improvement. 


Finally I moved to the DEQX HDP3 w/ transformer-balanced outputs and Earthworks calibration microphone, another big step up. It really does make the Edgarhorns sound great. 


I am satisfied for now, but I am always open to more improvement, even if it's from a different machine. I would like to try a couple of Pass Labs XVR1 active analog stereo 2-way crossovers - but you need two in order to tri-amp, three are required to quad-amp, and they cost $4,000 each.


I do have several good friends, musicians with very good ears, who really like the sound of my Edgarhorns. This group includes a very good friend, an acoustic guitar player who audits DIY recordings of himself playing on my system because my horns sound better to him than his own expensive exotic headphones. My horns sound about the same as his STAX 'phones actually, maybe not quite as smooth and silky, but the Edgarhorns can flap your pants, project a realistic image and don't make your ears sweat.


Dr. Edgar has visited here, so has Alon Wolfe and Steve Schell. They have all listened to my DEQX processed Edgarhorns and told me they sounded good. 


Dr. Edgar does not like the way I use my modified Edgarhorns, in a small room, sitting close up, but admits my setup sounds very good. For studio monitors. 


Of course, it's Murphy's Law that as soon as audio guests depart you discover miswired speakers, loose interconnects etc., so none of those guys ever really heard my system at it's best. Not to mention that several other upgrades since any of them were here last have taken the system to new highs. So to speak.


Anyhow, the invitation still stands for any interested listeners to visit and listen to my digital-infected Edgarhorns. If you're anywhere near SF it's worth the drive. 


I think so anyway.


Cheers,


Kerry  

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