Building tower speakers

[jmanpc]

Well, for lack of a better Christmas idea, I've decided to build my dad some tower speakers to go with his new TV and reciever.

Here's a few drivers I've been looking at for the project:

Subwoofers:

Tang Band W8-1363
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=264-833

Tang Band W8-740C
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=264-854

Dayton DC-200
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=295-310

Dayton QT210
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=295-545

Questions: All the drivers I want to use are 8 ohms. However, some of the subwoofer choices are 4 ohms. Do I need to match the impedance?



Midrange:

Dayton Reference 8"
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=295-366

Dayton Reference 7"
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=295-364


Tweeter:

Dayton DC28FS-8
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=275-075

Vifa D27TG
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=264-524


Crossover:

Dayton XO3W
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=260-150


Any other suggestions?

[jmanpc]

bump

[acold7dusta]

dayum i wish i had over 300 to spend on my dad
but good choices, should sound relatively good

[jmanpc]

lol it aint just gonna be from me. it's gonna be like a family-to-dad present. I'm just building 'em and pitching in some $$ to the drivers.

[Thieroff]

Run the subs off of a plate amp mang

You really shouldnt need much power


Ct

[acold7dusta]

o yea, might wanna get a plate amp like thieroff said

im runnin the dayton 240 not a bad lil bugger if i do say so myself @ 100 bucks

[jmanpc]

we've got a 8" yamaha powered sub. it's not much low-end so I figured we'd build some into the towers for some low-end reinforcement.

[Thieroff]

The xovers are going to be a pain in the *** on them man


You better know your stuff


CT

[jmanpc]

woot for prefab dayton xovers.

[Thieroff]

Haha, they may sound ok at best

all passive Xovers are based on impedance, and all speakers impedances are different, impedance changes with frequency

you'll find with those xovers you'll have dull spots and what not

go to a DIY forum and they can prolly design some xovers there for you for 10-15 bucks


Much, much better idea man


CT

[jmanpc]

Haha, they may sound ok at best

all passive Xovers are based on impedance, and all speakers impedances are different, impedance changes with frequency

you'll find with those xovers you'll have dull spots and what not

go to a DIY forum and they can prolly design some xovers there for you for 10-15 bucks


Much, much better idea man


CT

Honestly, my dad isn't a huge home audiophile. He wants something that'll sound 'good'. I'll be off at college, so I won't be bugged by dull spots. Maybe if I get bored enough I can do some xovers. Point being, I'm fine with them sounding okay at best. He's thrilled with his pair of Infinity bookshelf speakers. Anything would be a step up from those.

So how bout them drivers. Any ideas?

[Thieroff]

I would say the TB 8's should fill out the bottom end just find

CT

[jmanpc]

which ones? the neos?

7" or 8" midrange? vifa or dayton tweet?

[Thieroff]

yeah, the neos


They're really a sub, nasty little ****ers man

go with a 7in midrange

I'd got with the vifa tweet


CT

[jmanpc]

I got bored and started thinkin what if I used a pair of like 4" drivers for midrange...

[thylantyr]

The Syphons - Make a simple box.
http://www.partsexpress.com/projectshowcase/syphon/index.cfm

Magna *** Laude
http://www.partsexpress.com/projectshowcase/magna/index.html

Dr. K's MTM
http://www.partsexpress.com/projectshowcase/dr-k-mtm/index.html

[heyman421]

your woofers or subwoofers can be 1/2 the impedance of the other drivers, they'll just receieve 2x the power, which in most cases is good

just make sure his receiver is 4 ohm stable, and you'll be golden.

[jdawg]

Yea but if he uses a passive crossover then it will change the crossover point. I think it doubles. Anyways I would go off a variation of the magnas.

[heyman421]

dayton passives can accept 4 or 8 ohm woofers

[jmanpc]

i think im gonna use the TB 8" neos.

Got a cool idea.... i might slap em in a 4th order bandpass to where the subs arent even showing, then when people hear bass coming from them, they'll wonder where the hell its coming from ^_^