Roy Delgado discusses the patented "Mumps" technology

[TasDom]

[Sancho Panza]

Thanks, I posted that to your other thread; but, can't get it to come out with the small video window...

[CECAA850]

Getting the wave to stick to the wall of the horn.  Insightful.  Thanks again for the link.

[TasDom]

Thanks, I posted that to your other thread; but, can't get it to come out with the small video window...

Saw that right after i posted this. Might be better separated tho anyways.....thx Sancho

[Sancho Panza]

You're right; better this way.

[Schu]

wow... I love the way Roy explains and describes things. So Wonderful!!!

 

where are the 402 mumps?

Edited September 15, 2014 by Schu

[JL Sargent]

I appreciate Roy getting a word in about FISHING!

[mark1101]

Sounds like to me the mumps are for "pushing" the horn to its cutoff more gracefully.  if you are not near the horns limits with your crossover points.......you probably don't need mumps.

 

Cool video and explanation.  It's like the guy "sees" the sound and obviously thinks about it differently than us less gifted engineer types.

[Coytee]

I once specifically asked and was told by Roy that the 402 would probably never get the mumps.

 

 

Perhaps chicken pox but not mumps.

[The Dude]

Cool video, thanks for posting.  

[mustang guy]

So are those things in the K510's Mumps?

[Schu]

Y

 

JBL's version is slightly more elegant... or at least slightly more organic

 

 

looks like MUMPS in reverse.

Edited September 16, 2014 by Schu

[Chris A]

I've found that Roy is disarmingly concise when he talks about horn and loudspeaker design.  By this I mean that he says a lot without actually saying much of anything.  He's also a hoot in person, too, with a dry sense of humor and a touch of sarcasm. 

 

As far as what he's saying in this video, I'd point out the attention he pays to directivity vs. frequency and in other related conversations, performance aspects such as distortion.  He can talk about cone and dome drivers, active and passive crossovers, acoustics, manufacturing issues, then switch gears to talk horns and compression drivers without skipping a beat. 

 

Since he's not really focused on the typical hype of consumer loudspeakers, i.e., he works in the commercial marketplace, so he usually cuts through all the BS, instead zooming into the areas that actually make a difference in sound, some of which are amazingly low cost--such as the use of modeler's clay inside the horn that he talked about in the video.  This is actually fairly entertaining .  Also, he puts all the physics and engineering into perspective in terms of "what does it sound like?"--again, no BS.  This is the most refreshing thing that I found about talking with him.  He clearly understands his domain as an expert.

 

One other thing that I noticed about Roy is that he clearly regards his association with PWK and the memory of him highly, even those subjects whose answers might have changed over time with the introduction of new technologies and products.  He never spoke ill of him, or in a dismissive manner on any of PWK's contributions, or allowed others to do the same.  That spoke volumes to me.

[dtel]

JBL's version is slightly more elegant... or at least slightly more organic

 

I don't know, to me maby more organic, as in a turd, don't like the look, I think the vacuum broke when they were molding the plastic and it didn't pull it in all the way.

[Boxx]

Thanks for posting.  I enjoyed it....

[dtel]

One other thing that I noticed about Roy is that he clearly regards his association with PWK and the memory of him highly, even those subjects whose answers might have changed over time with the introduction of new technologies and products. He never spoke ill of him, or in a dismissive manner on any of PWK's contributions, or allowed others to do the same. That spoke volumes to me.

 

There was great respect, just listening to him talk and tell stories it was obvious the respect he had for PWK, it was also obvious they were friends. 

 

When talking with people he has great patience trying to explain complex problems and solutions to people who have not spent a lifetime studying it so they can understand at least the general idea. I would think that's a little aggravating at times.