Speaker design myths revealed


I found this at the Jordan web site. Maybe the experts can say whether this is true or not. I will say I have not heard the big improvement with a narrow baffle vs. wide baffle that I am "suopposed" to.
Q: In your VTL box design, why is the JX92S fitted in the wide face when it is common knowledge that the box should be as narrow as possible?

A: 'Common knowledge' and scientific fact are often very different. The narrow front face is a fashion concept supported by some very questionable marketing rational. The indisputable scientific fact is that the ideal mounting for a loudspeaker is an infinitely large flat baffle and this is the concept used for all loudspeaker analyses. A wide baffle always sounds better.

Q: What are the recommended advantages of positioning loudspeakers as close to the wall as possible?

A: This positioning secures, to some extent, the advantages described in the previous question. In addition it minimises the time delayed reflections from the rear wall which contribute to confused imaging.

Q: Will placing next to a wall ruin the stereo image?

A: We cannot see any reason why this would impair imaging. Possibly more than any other manufacturer, we have concerned ourselves with accurate and stable imaging and certainly would not promote a design that would impair this.
cdc
Thanks for providing a link ; )

1) Larger baffles increase bass response, which is what he's after with this specific design. There are trade-off's associated with increased baffle dimensions though, but he's obviously willing to take them in order to get what he's after for use with that driver.

2) Placing the speaker cabinet closer to the wall increases bass response, which is what he's after. Like the above response, there are trade-off's involved, but he's willing to deal with them in order to get what he's after for use with that driver.

3) Placing the speaker cabinet nearer a side wall will increase bass response, which is what he's after. Like the above two responses, there are trade-off's involved, but he's willing to deal with them in order to get what he's after for use with that driver.

Have you noticed any specific similarities? Figure it out. It is a small driver that he's trying to use full range. As such, it is going to be deficient in bass response. On top of that, due to the size of the driver, it will become beamier as frequency rises. As such, the problem with sidewall reflections will be somewhat reduced as compared to designs using a tweeter or smaller midrange drivers.

With all of that in mind, I read that Nelson Pass really liked the Jordan drivers. This tells me that it obviously has some very alluring qualities to it. Whether or not it is truly suitable as a full range driver with no auxillary support above or below the midband is up to the end user. Sean
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Now Listening to: Jazz At the Pawnshop 2 / Redbook CD

While the Jordan driver is not high-sensitivity like many single-driver systems, it has many of the pros and cons of these kinds of systems.

The Jordan driver was awarded best sound in at least one national "DIY speaker" competition, and has gotten some follwers for its sound quality.
Cdc, I am currently in the process of putting together an "open baffle" design. If you are interested, I will let you know my impressions when the drivers are broken in.