20hz f0 90db project

[oaristys]

Hello all !

After doing some compromise speaker, i want to build a 20hz to 20khz project.

I can build a tour from the floor to the ceilling placed on the wall like decorative beam painted the same color of the room. There will not look like speaker with grill on.

So i look for driver that can reach me to 88 db and more (90-91db if possible) with F0 of 20hz. I don't want peak or hole of more than 1.5-2db. and if possible, a driver with drastic "after 350hz" for inductor free pass.

This will be a 3 way loudspeaker. I will probably use already own mid bass and tweeter. This driers is efficient enoug, i will pad it on need so don't bother about it.

This subwoofer seems to be promising : ACI SV12 Subwoofer - 12" - 4 ohm

I can go with up to 18 inces woofer. My budget for sub driver is about 300$ US max.

What driver to use ?

Thank's for your help !

[badman]

AE speakers IB15 is the obvious choice for you. You may need a couple 'cause they're so efficient down low they can run out of their substantial Xmax.

[oaristys]

Originally posted by badman
AE speakers IB15 is the obvious choice for you. You may need a couple 'cause they're so efficient down low they can run out of their substantial Xmax.

I forget few details.

This speaker is not for playing loud like super home cinema or making police visit my home.

The only goal is to get full range as flat as possible with a little stereo amp and a speaker that don't like speaker but architechtural design of the wall.

I currently use 35 Watt tube amp.

Do you think less than 100 watt can put AE speakers IB15 over xmax !? (rated far over)


And don't forget the budget of 300$. AE speakers IB15 cost more.. but if it does not exist cheaper alternative, i will wait to get the money.

The ACI SV12 is not good enough for my project ? If not, why ?

[oaristys]

I try some configuration with WinISD beta about AE IB15.


I can built 6th order and eq filter to reach ~90db. But i think the real efficiency will be few db lower. (?)

Look the graph.

[oaristys]

I think about that.

My aproach is may be not the better one with WinISD.

I think i'm better to follow your experiences. I have 3 different designs of enclosure possible now.

First, 20 882 cubic inches
Second, 23 184 cubic inches
last, 32 936 cubic inches

The first one is an halves cylinder to get great beam look.

But if i need more volume the last one can be acheived bye "wardrobe" style.

I'm not familiar with open baffle, infinite baffle.

Need 20hz-300hz at f0 Flattest as possible.

Thank's all !

[Inductor]

Originally posted by oaristys

After doing some compromise speaker, i want to build a 20hz to 20khz project.

hehehehe!
(Hey oaris) Still around with your 20/20 speakers?

[oaristys]

Originally posted by Inductor



hehehehe!
(Hey oaris) Still around with your 20/20 speakers?

This project take a different way.

I can build bigger enclosure to ensure 2 stereo bass sources perhaps of a center subwoofer.

And some deal like this 12" driver add motivations ! And i reduce my SPL objectif too.

[Inductor]

Originally posted by oaristys

So i look for driver that can reach me to 88 db and more (90-91db if possible) with F0 of 20hz. I don't want peak or hole of more than 1.5-2db. and if possible, a driver with drastic "after 350hz" for inductor free pass.

This will be a 3 way loudspeaker. I will probably use already own mid bass and tweeter.

So, you are doing a classic 3way, and you are concentrating in the sub (or woofer) right now. Also, in your option, you are doing it, like a column, farway from the walls. Some people say that is better to have two subs or stereo because you mention a central one. Did you buy, or decided between, the speaker/s yet.

[oaristys]

Originally posted by Inductor


So, you are doing a classic 3way, and you are concentrating in the sub (or woofer) right now. Also, in your option, you are doing it, like a column, farway from the walls. Some people say that is better to have two subs or stereo because you mention a central one. Did you buy, or decided between, the speaker/s yet.

The column will touche the floor and the ceiling.

No, no driver choice for now.

But i like this affordable ACI SV12.

But now i need to calculate the room gain. By brother said i will have until 5db boost at 20hz in my room. If it's true, i don't need a 20hz f0 speaker.

[oaristys]

Originally posted by Inductor


So, you are doing a classic 3way, and you are concentrating in the sub (or woofer) right now. Also, in your option, you are doing it, like a column, farway from the walls. Some people say that is better to have two subs or stereo because you mention a central one. Did you buy, or decided between, the speaker/s yet.

The speaker ill by stick on the wall.

I don't want center sub. I want two full range standalone speaker