To Kuei Yang Wang, re. XL Baffle

[DeonC]

Hi Kuei

Just two quick question regarding XL Baffle, both concerning the 'Height above floor (mm)' parameter:

1. Is this measured at the centre of the cone, or at the bottom of the driver's chassis?

2. How is this parameter and the predictions that come from it affected if you slope the baffle backwards (for example at a slant of 20 degrees from verticle)? This will surely smooth the upper-bass midrange response not so? And how will it affect low-end response?

Ok, that was more than just two questions, but thanks anyway.

Thanks,
Deon

[ThorstenL]

Konnichiwa,

Originally posted by DeonC
1. Is this measured at the centre of the cone, or at the bottom of the driver's chassis?

Centre.

Originally posted by DeonC
2. How is this parameter and the predictions that come from it affected if you slope the baffle backwards (for example at a slant of 20 degrees from verticle)?

That is not modelled or accounted for at all.

XLbaffle offers a first order approximation, not "absolute fact" data, take it's output as a general guide and allow plenty of error margin. It was designed more to illustrate trends than to produce absolute data.

That "edge.exe" thing is much more accurate than XLbaffle.

Sayonara

[Svante]

Originally posted by Kuei Yang Wang
Konnichiwa,

That "edge.exe" thing is much more accurate than XLbaffle.

Dunno about that, Edge does not model room reflections at all, just the baffle edge diffraction effects.

[ThorstenL]

Konnichiwa,

Originally posted by Svante
Dunno about that, Edge does not model room reflections at all, just the baffle edge diffraction effects.

Okay, then let's say that what "The Edge" (can I have this one Super Supreme please?) models what it does model considerably more accuratley than XLBaffle.

Do you think the math in the Edge could be "convoluted" sufficiently to give a single excel worksheet row per frequency? Then I'd update XLBaffle and XLBox with that math (full crdit to you for this of course)....

Sayonara

[Svante]

Originally posted by Kuei Yang Wang

Do you think the math in the Edge could be "convoluted" sufficiently to give a single excel worksheet row per frequency?

A quick and dirty excel hack, you'll have to expand it here and there, but you get the idea:

http://www.tolvan.com/edge/QuicknDirtyEdge.xls