Choice of BD15 for our High-end Hifi project? (BD-Design)

by Bert , Monday, April 16, 2007, 00:13 (6230 days ago) @ Jose Hidalgo

Hi Jose,

So to begin with, we'd like to have your comments (positive I hope
) on the relevance of the BD15 choice for a High-end Hifi application up
to 200-250 Hz, crossing over with an Accuton C90-T6.

The BD15 is fast and dynamic enough to follow the Accuton (reading its TS-parameters). Should work out more than okay...

After that, we'd like your advice on the best enclosure type for the BD15.
For example, most peope today just go bass-reflex without even knowing why.
Big sealed enclosures (Qtc = 0,50) have also their advantages (group delay
/ better impulse response). We do not have a preference here, so we really
would like to hear your best BD15 enclosure advices for our application. BR
or sealed ? Damped or not damped ? How ? Where ? When ? Etc.

This depends if you want to use a subwoofer below or not. Without subwoofer a dampened 165-225 liter reflex system with relative large ports would be the best choice for the BD15 (even better with a matrix inside).

P.S.1 : I have read that the early BD15's needed some coating with glue. I
assume all the new BD15's are ready to use and don't need any additional
work ?

They are ready to play.

P.S.2 : Is there a way to lower the BD15's impedance ? WinIsd says it's 20
Ohms, which is very high !! (of course we could put 2 BD15's in //, but
that would also double the price ). Wouldn't it possible to have a
version of the BD15 with a lower impedance ?

It is not possible to get a BD15 with a lower impedance. These are not 20 ohms either (15ohm flat with impedance correction) but still, you are making an active system, so what's the problem then? :wink:

Bert

Bert

--
BD-Design - Only the Best!

Tags:
0