Why a co-axial 2inch driver (Orphean)

by GC, Monday, June 04, 2007, 11:48 (6163 days ago) @ Jacobus
edited by GC, Monday, June 04, 2007, 11:52

ah ok, problem with EQ is clear. I think though that the mentioned drivers
go to 300Hz as least as good as the BMS. but the loss of eff. is indeed a
problem

Hi Jacob

When you claim the mentioned drivers to be at "least" as good as the BMS at 300 Hz or whatever, it caNot be so. The BMS's shows extreeme P-P displacements and incredible low distortion in the lows.
The drivers you refer to doesn't comply here. Hence an unbearable distortion at 300Hz and only distortion if cut lower.

It is to my knowledge only GOTO drivers and alike that reach very low freq. and those dedicated for that, doesn't have any response towards the highs.

However good reputed JBL/TAD etc 2" and 4" compression drivers are, neither of them have any usefull response at the very highs if a given horn should load them even down to 300 Hz. The treble will die travelling through the horn.
A dedicated driver for those "missing" freq. has to be applied for max resolution. And where to place it at optimum?

IMO the BMS's drivers with their incorporated treble horn are just "bulls-eye", as a one point source is acheived by the construction itself. 200 - 25.000 Hz from one point!!!
In a horn like the Orpheans the treble breaths out uncut until mass controlled roll off tell them to quiet at 25 KHz.

That it is an art to make the drivers response to perfection is a magic from those who knows how to make it happen.

General question: Is it a problem that BD-Design's version of the BMS drivers and applied front horn is sounding better than all others?

GC

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