[Mr. Electric Wiz]

Hello all,

Is it safe to assume that these two designs yield very similar results?

It look like they both start to rolloff around 27Hz but the Micro uses a 15" woofer and the Anarchy uses a 6.5" woofer.

Output db is obviously higher with the Micro, but not bad with the Anarchy.


Anarchy:
http://www.diysoundgroup.com/subwoofer-flatpacks-2/anarchy-th.html
http://www.avsforum.com/t/1238398/reed-exodus-anarchy-25hz-tapped-horn


MicroWrecker:
http://www.avsforum.com/t/1514504/my-lilmike-microwrecker-lilmikes-plans-in-thread


Anybody want to set me straight?

 

[lilmike]

Sure. You are comparing a BB gun to a howitzer here.


The Anarchy was making 105 dB when the driver tapped out.


The MicroWrecker was making 125 dB when my amp tapped out.


20 dB is HUGE.

 

[LTD02]

^^ +1


folks just aren't as familiar with comparing spl as they are frequency response.

 

[Mr. Electric Wiz]

6db is double the loudness right?

So, that would be more than 3 times as loud with the same power right?

Holy crap!

 

[LTD02]

it'd take more power, but it is also more than 3 times as loud subjectively.


20 db is the difference between when a movie is playing the opening credits music and when all hell is breaking loose and the entire system is being maxed out. it is huge.

 

[Mr. Electric Wiz]

I had a feeling it was a dumb question when I posted it.

How can a 6.5" woofer even compete with a 15" in terms of moving air.

 

[Bill Fitzmaurice]



Quote:
Originally Posted by Mr. Electric Wiz  /t/1519778/anarchy-tapped-horn-vs-microwrecker#post_24407847


How can a 6.5" woofer even compete with a 15" in terms of moving air.

When it has seven times the excursion. Which isn't impossible, there are fifteens with 1mm xmax and sixes with 7mm. But it would be rare.

 

[mazdaspeed3]



Quote:
Originally Posted by Bill Fitzmaurice  /t/1519778/anarchy-tapped-horn-vs-microwrecker#post_24407883


When it has seven times the excursion. Which isn't impossible, there are fifteens with 1mm xmax and sixes with 7mm. But it would be rare.

Which 15's have 1mm xmax?, your talking about old drivers not current, right? If not which current 15" drivers have 1mm xmax? Tang Band 1139 6.5" has 11.5" xmax.

 

[SVonhof]

Mr. Electric Wiz, did you end up building anything?

I am still very happy with my MicroWrecker....

I have turned down the power going to it as it was just more than I needed (how can I say such a horrible thing?).