Tower speakers

[Speculant]

Now, before you all start hating, be aware that I am a poor college student and thus need to spend as little money as possible while representing as much frequencies as I can.

My roommate is moving out and taking the external TV speakers with him, so I need to build a new pair.

Centered around these parts:

6-1/2" Sealed Back Treated Paper Cone Midrange Speaker 289-126

TWO 8" MID RANGE MID BASS GREY SPEAKER ENCLOSURE BOX BOXES | eBay

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=292-428

I would have 3 in each tower. Since they are sealed, there will be no need for a front panel, just back braces to keep it stable.

MSPaint mockup:

I already have a 10" subwoofer crossed at 100hz to take care of the lower frequencies.

I need help on suggestions for modifications/crossover frequencies.

 

[Guiria]

Would you mind telling us why you chose the above mentioned speakers?

You probably want a tweeter in the mix as well for your high frequencies.

If someone were to actually take the time to model these speakers and simulate a crossover network for you I can guarantee you that the crossover parts would cost at least double what your drivers are going to cost. 3-way crossovers typically end up having lots of parts which add up quickly. $$$

If you were thinking budget speakers I would look for something else.

 

[Speculant]

I picked the speakers because I wanted to make something out of the super cheap 6.5" drivers.

 

[lsiberian]

I picked the speakers because I wanted to make something out of the super cheap 6.5" drivers.

Why not do a simple 2-way design? It would be a lot easier and cheaper.

 

[Speculant]

I figured if the speakers were cheaper I would need more of them to be louder without distorting.

 

[mattsk8]

This is the route I'd go if I were you...

TriTrix MTM TL Speaker Kit Components Only Pair 300-700

W/ what you're getting on ebay and the speakers you chose, you're already at over $70 and you still need to build xovers and cabinets; you don't even have tweets yet either.

This kit is already mapped out completely and it's $140 shipped. I have these in my garage and they're by far and away the best sounding speakers I've ever heard for that kind of money (actually haven't heard much better for any less than $800 believe it or not). I drive them w/ a circa 88ish 65 watt Kenwood receiver and I'm blown away at how crisp, clean and lifelike they are, even at crazy volumes.

I'd even suggest buying the speaker kit first, then save money for parts express' cabinet kit just cuz it's sooooo much of a time saver and a great deal. But if you're ambitious you can build naked MDF cabinets for these yourself for around $40.

I'm telling ya, save a whole bunch of time n disappointment and go that route!! You'll be happy you did.

 

[GranteedEV]

matt nailed it. go with an established 2-way design, of which there's plenty out there. Designing a speakers is a lot more than picking drivers... you'll thank yourself in the long run.

 

[lsiberian]

I figured if the speakers were cheaper I would need more of them to be louder without distorting.

Not really. You could even use a coaxial driver or full range driver.

Creative Sound - Product Details

would be great for a cheap build.

 

[Rickster71]

I'd follow Matt's advice.

Your plan will not work with those drivers in the boxes you picked.
The driver requires a cutout diameter: 5-3/4"....the boxes you've picked already have a cutout of 7-1/8"
Besides that, drivers should be matched to a specific volume box...not just any box.

 

[jinjuku]

I picked the speakers because I wanted to make something out of the super cheap 6.5" drivers.

You mean other than bad sound?

 

[DenPureSound]

I figured if the speakers were cheaper I would need more of them to be louder without distorting.

I also would go w/ what Matt stated. MTM design will get you some great quality sound for the least dollar invested.