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DIY satellite speakers and sub using rockford fosgate gear?

post #1 of 12
Thread Starter 
Hey guys. I have a few sets of really old Rockford fosgate fanatic q speakers. I have several sets of midranges and I have the tweeter sets that have the high pass crossover. Would it be possible to make these into satellite speakers and then cross them over at about 100hz or so to a dual voice coil 4 ohm elemental designs sub? So I would have to make the crossover so that the low pass for each channel goes to the sub and the high pass goes to the satellites. Is that tough or are there any resources that would tell me what I would need to make that type of crossover?

This is kind of a weird project but I have the stuff sitting around so why not?!
post #2 of 12
Thread Starter 
hey guys. I was surfing parts express and it seems that they make crossovers that will do just what I want for $39. They also make some really nice speaker boxes; way more than I want to spend but they look great and would make like easy...

http://www.parts-express.com/pe/showdetl.cfm?partnumber=302-701

We'll see if I can make a great 2.1 system for the bedroom out of these.
post #3 of 12
you sure about that?
post #4 of 12
Thread Starter 
About what?
post #5 of 12
"I was surfing parts express and it seems that they make crossovers that will do just what I want for $39."
post #6 of 12
Thread Starter 
Sort of. They have a pre setup crossover board for 4 ohm setups that sends the lows to the sub channels and the hi's to the satellites. The part number was 260-211 (I'm posting off my cellphone or I'd post the link).

I think this will work but I'm not 100% as I haven't bought any crossovers in a long time
post #7 of 12
Thread Starter 
here's the link. From the reviews, it sounds like it might work (the 5th review).

http://www.parts-express.com/pe/showdetl.cfm?partnumber=260-221
post #8 of 12
Give it a try. It's not a big investment. Good learning opportunity. You'll find very little (no) encouragement for any proposal using off the shelf generic crossovers.
post #9 of 12
Quote:
Originally Posted by rr14 View Post

here's the link. From the reviews, it sounds like it might work (the 5th review).

http://www.parts-express.com/pe/showdetl.cfm?partnumber=260-221

It will work, but it's like hiring a alcoholic who doesn't own a tape measure or level to build your deck. It was cheap, but it looks like S###.
post #10 of 12
Quote:
Originally Posted by rr14 View Post

here's the link. From the reviews, it sounds like it might work (the 5th review).

http://www.parts-express.com/pe/showdetl.cfm?partnumber=260-221
It will work, badly. The impracticality and high cost of using passive crossovers between subs and mains is the reason why most subs are self-powered, and the crossover is electronic, inside the AVR. Subs that aren't self powered still use electronic crossovers, placed between the source and the power amplifiers that separately drive the subs.
post #11 of 12
Thread Starter 
hey guys. I've dug around and I have pretty much everything here to buy the crossover and see how it does without having to make anything or purchase anything additional. I already have a box for the sub (out of my car) and I have some cheap satellites. I do already have the amp (kenwood kmx-1000, 2 channel 130 rms x 2). The plan is to use the output of my tv into the amp (to control the volume). The amp will be below my dresser and not visable and the sub will be on the side of the dresser. The two satellites will be going on top of the dresser. This is a basic 2.1 type setup; nothing fancy. I have a dedicated home theater in my bonus room. I'm just trying to come up with a diy alternative to a soundbar....
post #12 of 12
Nothing like playing around for the fun of it. When I was a kid, I took an old factory door speaker, taped it to some glass mixing bowl of my mom's, and put it in a topsy's popcorn tin filled with clothes. The bowl acted as the enclosure and the clothes acted as a lowpass filter. I powered it with my sony boombox. Cost me nothing to make that sub and it sounded horrible. However, it was a step up from the shoebox sub I used.
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