tangband closed box question

matjans · 19th January 2004, 02:30 AM

hi all,

I'm planning to (finally) build some loudspeakers myself. After reading a lot of forums & thread's i've decided on the tangband w3-871S because they're cheap (important, being a student and for a first diy thing), i don't really need party-level music and they get pretty nice reviews.

a simple question to you (two actually) who are not loudspeaker-diy-first-timers:

If i were to hook up 2 drivers in one box, how would i do that? Can I just wire them parallel (which would theoretically give me a 4 ohm speaker)? And how would i do this for 4 drivers?

Second question: how to calculate the required box volume for a one-way two driver closed box enclosure? volume for one driver * 2 ? (ang again, how about 4 drivers?)

Thanks,

Matthijs

Nappylady · 19th January 2004, 02:52 AM

The wiring can be done however you want. I'd reccommend wiring two drivers in parallel, the other two drivers in parallel, and then those two pairs in series. Final load = 8 ohms.

As for the box, it's probably just number of drivers * one-driver ideal volume. You should check this with WinISD to be sure.

Good luck!

Rudolf · 19th January 2004, 01:17 PM

Hi Matthijs,
have you seen this thread some entries down? Seems to be exactly what you need:
Second driver crossover point/full range

Rudolf

Timn8ter · 19th January 2004, 04:27 PM

Quote:

Originally posted by Nappylady
The wiring can be done however you want. I'd reccommend wiring two drivers in parallel, the other two drivers in parallel, and then those two pairs in series. Final load = 8 ohms.

As for the box, it's probably just number of drivers * one-driver ideal volume. You should check this with WinISD to be sure.

Good luck!

Yep, that's right.
Here's what I did.

matjans · 19th January 2004, 05:03 PM

i see. seems to be easy enough for me. Only thing is you made a vented enclosure and i want to have a closed box.

volume for 1 driver * number of drivers = multiple-driver-in-a-box-volume ? Too easy ...

:~

Timn8ter · 19th January 2004, 05:50 PM

It's just a little smaller. ~11 liter internal. I find that LspCAD works better for modeling this than WinISD but it may cost more than the speakers.

19th January 2004, 02:30 AM	#1
matjans diyAudio Member Join Date: Aug 2003 Location: Utrecht, NL	tangband closed box question hi all, I'm planning to (finally) build some loudspeakers myself. After reading a lot of forums & thread's i've decided on the tangband w3-871S because they're cheap (important, being a student and for a first diy thing), i don't really need party-level music and they get pretty nice reviews. a simple question to you (two actually) who are not loudspeaker-diy-first-timers: If i were to hook up 2 drivers in one box, how would i do that? Can I just wire them parallel (which would theoretically give me a 4 ohm speaker)? And how would i do this for 4 drivers? Second question: how to calculate the required box volume for a one-way two driver closed box enclosure? volume for one driver * 2 ? (ang again, how about 4 drivers?) Thanks, Matthijs

19th January 2004, 02:52 AM	#2
Nappylady diyAudio Member Join Date: Feb 2003 Location: Salt Lake City	Aaah, easy questions. :-) The wiring can be done however you want. I'd reccommend wiring two drivers in parallel, the other two drivers in parallel, and then those two pairs in series. Final load = 8 ohms. As for the box, it's probably just number of drivers * one-driver ideal volume. You should check this with WinISD to be sure. Good luck!

19th January 2004, 01:17 PM	#3
Rudolf diyAudio Member Join Date: Mar 2003 Location: Germany	Hi Matthijs, have you seen this thread some entries down? Seems to be exactly what you need: Second driver crossover point/full range Rudolf __________________ www.dipolplus.de

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19th January 2004, 05:03 PM	#5
matjans diyAudio Member Join Date: Aug 2003 Location: Utrecht, NL	i see. seems to be easy enough for me. Only thing is you made a vented enclosure and i want to have a closed box. volume for 1 driver * number of drivers = multiple-driver-in-a-box-volume ? Too easy ... :~

19th January 2004, 05:50 PM	#6
Timn8ter diyAudio Member Join Date: Jul 2003 Location: Seattle, WA	It's just a little smaller. ~11 liter internal. I find that LspCAD works better for modeling this than WinISD but it may cost more than the speakers.

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