Quasar (BD-Design)

Hi Fus,

I'm in the midle of building Quasar open baffle and I have some issues:
First....I have to replace Fostex with Supravox 215 rtf bicone but in
Quasar design the open back of the Fostex is a kind of "horn loading"?

The thickness of the panel and the "tube" behind the driver does boost a certain frequency range which full-range drivers like to have, for the Supravox its better not to have this tube behind it.

It seems for Fostex(low qts) is more suitable and I wonder if it works on
the Supravox driver (qts=0,53) or should I try to make the same 15" open
back also.

Another question is for 15" bass drivers open back......is that open back
a horn loading ...and is more suitable for Bert 15" low qts driver or it
will works also for qts=1.2 driver as well.

I want to replace Bert 15" with Alpha 15A with qts=1.2.

Any thoughts?

A high Q driver will give much more bass than a low Q driver but the quality will be poor...

Nothing seems the same except the panel dimensions and even that is something you want to change regarding the use of the Supravox driver.

All I can say is that everything is related (drivers, panel dimensions and thicknesses) to make the design as shown work well. I can't predict what will happen unless I have experimented with the same different drivers in the same panel...

Ciao,

Bert

--
BD-Design - Only the Best!

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