Thanks is a insignificant word for your help Landroval because in my city I have a Conrad Electronic Shop when I can buy all products in this two sites.
In the www.boxen-baustelle.de I find this great monster:
Raveland AXX 1212
Manual
But i waiting for your opinion for this driver.It`s good may be for a well-behaved bass,because the construction will be a bass-reflex and for me this great-more cheaper then the JBL and may be with wonderful ring or

In the www.boxen-baustelle.de I find this great monster:
Raveland AXX 1212
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Manual
But i waiting for your opinion for this driver.It`s good may be for a well-behaved bass,because the construction will be a bass-reflex and for me this great-more cheaper then the JBL and may be with wonderful ring or

Ok, you seem enthusiastic about picking your own drivers. However, as we have been saying, to design a speaker all by yourself is very hard and needs a lot of time and equipement. So:
A) Do you have any experience on designing crossover circuits for loudspeakers?
B) Do you have measuring equipement to measure your drivers?
C) Are you willing to spend a lot of time tweaking the design to get a pleasing result?
If you answered "no" to everything, I suggest you take my word on this and take a predesigned system and build it. Even that wont be too easy.
An easy way around big and hard to build/design floorstanders, would be to make smaller speakers and an additional active subwoofer for the bass. In my opinion this would be much easier to accomplish.
How big is the room where you're putting these, and how mch output do you really need?
A) Do you have any experience on designing crossover circuits for loudspeakers?
B) Do you have measuring equipement to measure your drivers?
C) Are you willing to spend a lot of time tweaking the design to get a pleasing result?
If you answered "no" to everything, I suggest you take my word on this and take a predesigned system and build it. Even that wont be too easy.
An easy way around big and hard to build/design floorstanders, would be to make smaller speakers and an additional active subwoofer for the bass. In my opinion this would be much easier to accomplish.
How big is the room where you're putting these, and how mch output do you really need?
The room is a 70 square metres.
The amp is a Quasi MOSFET(in progress) -310-370W@8 oHms.
This Raveland Speaker attract me so hard,but you not say anything about this.I can`t view this driver,but i can order him if Ravelnd is a good stamp with good quality and if this monster like you
A)Yes ! I have a long experience with the electronics.
B)Yes! I have a big workshop in my house and all machines for this!
C)Yes!
And now can you tell me anything about this beautifull,big,heavy Raveland
The amp is a Quasi MOSFET(in progress) -310-370W@8 oHms.
This Raveland Speaker attract me so hard,but you not say anything about this.I can`t view this driver,but i can order him if Ravelnd is a good stamp with good quality and if this monster like you

A)Yes ! I have a long experience with the electronics.
B)Yes! I have a big workshop in my house and all machines for this!
C)Yes!
And now can you tell me anything about this beautifull,big,heavy Raveland

And then?
Why i give you all specifics for this speaker?May be you can view it and give me any simple info for the possibilitys ?
I don`t know anything for the drivers
Mat be now you are satisfied?
I know only that this is a subwoofer driver for min to 400hZ may be , 4 oHms,and I want ask : This 4 ohms speak for any not very good quality of the sounding?
I can speak only that the price of the JBL=The price of the Raveland.
I have the instruments and the assistance of one very good with the wood friend,but I can`t speak for anything so far,far away from me and from the market in my country
Why i give you all specifics for this speaker?May be you can view it and give me any simple info for the possibilitys ?
I don`t know anything for the drivers

Mat be now you are satisfied?
I know only that this is a subwoofer driver for min to 400hZ may be , 4 oHms,and I want ask : This 4 ohms speak for any not very good quality of the sounding?
I can speak only that the price of the JBL=The price of the Raveland.
I have the instruments and the assistance of one very good with the wood friend,but I can`t speak for anything so far,far away from me and from the market in my country

I cant really say anything about the quality of the driver. The manual you linked suggested a 38 liter reflex enclosure with 6cm diam. and 15cm long vent. That's what you should build with it if you buy that driver.
That's definitely a car-hifi subwoofer driver, so I personally would forget it if you want anything even near good quality.
That's definitely a car-hifi subwoofer driver, so I personally would forget it if you want anything even near good quality.
I think you will have to decide what you want before we can help you further. You are pulling woofers out of the air and asking our opinion. So far you have gone from a PA driver to the other end of the spectrum with auto woofers. If you want the PA sound, you aren't going to get it from an auto woofer. Conversely, if you like the depth of a sub, you won't get the PA sound.
Time to make a decision before asking any more.
Time to make a decision before asking any more.
Landroval said:I modelled the 12LF with WinISD. For best quality I would put it in a SBB4 70 liter reflex tuned to 50Hz (vent for ex 15cm diameter, 20cm long). The enclosure is quite small, so to easily get away with baffle-step issues I would buy an extra 12LF and make the bass section bipole (one driver front, one back, wired in phase).
The other option for the 12LF sacrifices a little quality but goes a little lower. This is QB3 120 liter reflex tuned to 44Hz (vent for ex 15cm diameter, 12cm long).
Get this:
http://www.linearteam.dk/default.aspx?pageid=winisdpro
Input the driver data and find a design that pleases you.
Here's the examples I posted earlier. However I think it would be best for you to learn to use WinISD or some other similar program yourself. Read the helps and try how it works.
BTW the Alpha 6 goes nicely to a 8 liter sealed enclosure.
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