A Tale Of Three Woofers (BD-Design)

by Eddie @, Saturday, December 03, 2011, 11:55 (2244 days ago)

Hello Bert,

Did you already see this 15" Woofer Survey on http://www.enjoythemusic.com/diy/1211/15_inch_woofers.htm ? Very well written, I would say.

The verdict: "Listened to, unfiltered, the BD has by far the best performance".


Kind regards,
Eddie

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A Tale Of Three Woofers

by Bert @, Monday, December 05, 2011, 09:37 (2242 days ago) @ Eddie

Hello Eddie,

Did you already see this 15" Woofer Survey on http://www.enjoythemusic.com/diy/1211/15_inch_woofers.htm?

No I didn't, thanks for the pointer!

The verdict: "Listened to, unfiltered, the BD has by far the best performance".

Yeah, that gives a nice touch to the story. Pity that he did not use the optimum volume and tuning for each bass driver which probably would alter the story to be a bit more objective but still the results could be the same in the end.

I prefer less bass with more control and accuracy, it is so easy to EQ the loss in output and then have an almost perfect bass for domestic use.

Cheers,

Bert

--
BD-Design - Only the Best!

A Tale Of Three Woofers

by leifchristensen @, Monday, December 05, 2011, 14:45 (2242 days ago) @ Bert

nice result
are there others in addition to me that run 4 BD15 per channel?
maybe even with short horns in front?
best
Leif
Norway

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A Tale Of Three Woofers

by Bert @, Monday, December 05, 2011, 15:07 (2242 days ago) @ leifchristensen

Hi Leif,

are there others in addition to me that run 4 BD15 per channel?

Yes, you're not the only one...:yes:

maybe even with short horns in front?

Not with multiple drivers per channel. I am thinking of making a short vertical square front loaded horn having 2 drivers per channel. Option to stack them too of course for people who need more output...

:bass:

Bert

--
BD-Design - Only the Best!

A Tale Of Three Woofers

by leifchristensen @, Monday, December 05, 2011, 15:18 (2242 days ago) @ Bert

Yes of course I know about the other in Norway who copied my setup...
what about yourself?
I asked you about hornloading of my towers earlier;
is it anything to gain for me by getting square short horns infront of the BD15s?
maybe different if I decide to go for Orphean without Trio midbass horns between towers and Orphean and lowpass tower up too 270 ?
best
Leif

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A Tale Of Three Woofers

by Bert @, Monday, December 05, 2011, 15:29 (2242 days ago) @ leifchristensen

Hi Leif,

is it anything to gain for me by getting square short horns infront of the BD15s?

Absolutely but wouldn't it be better to create one tall "lens" to cover the whole length? It would look better but then still, it will be pretty HUGE as you're not using the possible space at the sides of this lens.

My idea is to incorporate such a lens within the needed volume normally needed for the bass driver and also having things easy to time align acoustically.

In the basics something similar in design to this one...

[image]

...but then taller of course. :grin:

maybe different if I decide to go for Orphean without Trio midbass horns between towers and Orphean and lowpass tower up too 270 ?

If the extra consumed space is not a problem then yes, the Trio horn will then not bring anything extra...

Bert

--
BD-Design - Only the Best!

A Tale Of Three Woofers

by leifchristensen @, Monday, December 05, 2011, 15:50 (2242 days ago) @ Bert

ok NOW we´re talking :cool:

how wide and deep are those square cabs on the picture?
best
Leif

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A Tale Of Three Woofers

by Bert @, Monday, December 05, 2011, 16:14 (2242 days ago) @ leifchristensen

how wide and deep are those square cabs on the picture?

These cubes are approximately 62 x 62 x 62cm.

Bert

--
BD-Design - Only the Best!

A Tale Of Three Woofers

by leifchristensen @, Monday, December 05, 2011, 16:27 (2242 days ago) @ Bert

times 4 is 248 he he- ceiling height in Norway is normally 240!
my towers are WxD 52x70, that wasn´t too bad...
hmmmmm
best
Leif

A Tale Of Three Woofers

by Gasper, Monday, December 05, 2011, 21:08 (2241 days ago) @ leifchristensen

My place 263 cm ...
But 2 per chanel with short horn in front and the Oris 150 on top....:drool:

Cheers,

Gasper.

A Tale Of Three Woofers

by leifchristensen @, Monday, December 05, 2011, 21:53 (2241 days ago) @ Gasper

4 per side have come to stay with me
case closed for me
best
Leif

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