n00b to subs

[C/U Kid 10+ year member]

Hey guys, I've been reading this forum for awhile and got inspired to do my own system after seeing a bunch of pictures on these forums (that and my buddy also just put in a sweet system and I need that kind of bass in my own car). That being said, theres something about sub amps that is sort of confusing. When shopping online for a "mono sub amp" many of them have their wattage rated per one channel. can you hook up two subwoofers to one of these "mono sub amps"? example;

on sound domain it says RMS Power: 450W x 1 @ 4 ohms

Bridged RMS Power: 900W x 1 @ 2 ohms. please explain to a n00b! thanks in advance. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

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[C/U Kid 10+ year member]

quick follow up - I havent taken a look at any amps up close, but are there more than one terminal for parallel hookup of more than one subwoofer?

Also, I see a lot of you like Resonant Engineering stuff, but what other brands do you guys like? I'm going to probably go with a 2 sub system, both in sealed (fiberglass) enclosures and I'm thinking the Brutus BX1000. I've heard good things about Phoenix Gold, are they true? I like this new piece (the Octane-R):

edit: picture fixed. sound domain is the greatest, hosts pictures for all the equipment I'm looking at! (expensive store though)

 

[C/U Kid 10+ year member]

The QX has half the wattage rating, 125 and 250. Theres no way you can get a quality sub for 42 dollars anyway, unless you're buying it from someone who "got it after it fell off the truck." How do you think the tantrum-x sub would go in a bigger box though? My sealed enclosure is likely to be closer to 1.5-2.0 cubic feet (for each one).

edit: the octane-R's list for like 65-70 each, so when comparing to others in the price catagory, keep that in mind. I would spend up to like 100 or so a piece, so any other suggestions?

 

[C/U Kid 10+ year member]

oh, another question; sorry if the answers are somewhere in the faq but I didnt see anything quite similiar to what I'm curious of. If I get the BX1000 (or BX 1500 for that matter) would it be better to run two single 4ohm woofers, two double 4ohm woofers, or two 2ohm woofers. thanks!

 

[C/U Kid 10+ year member]

is there really a huge difference in SPL (for the enclosure type I'm considering) between a 10" and a 12". Double coils sounds like the way I'm going to go.

 

[C/U Kid 10+ year member]

single vs dual coil? are the duals much louder?

you're right, if I were doing single coil I would want the higher rating @ 2ohms.

edit: spelling

 

[C/U Kid 10+ year member]

so whats the benefit of dual coil over single coil? just to be able to change the ohms?

for a similar price; the octane-R high-end amp looks good. Not 1-ohm stable, but if it can put out the same power @ 2ohms, whats the point of spending all that extra money to power a 1-ohm system at the same wattage?

heres an ebay link: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=18797&item=3093725500&rd=1&ssPageName=WDVW

 

[C/U Kid 10+ year member]

add another question to the mix: if I want to add a multi-channel amp for my full-range speakers, is a crossover really necessary? or can i just use the pre-amp outputs on the multi-channel (or vice versa; on the mono block). thanks!

 

[C/U Kid 10+ year member]

ok, for example, I use this ( http://www.sounddomain.com/sku/PHOR804 ) multi-channel amp to power my full-range speakers. it says: Dual continuously variable 12 dB / octave high- or low-pass crossovers, meaning a high-pass for the full-range guys, I'm guessing? and then it also has pre-amp outputs that I can plug into the mono block.

I'm not even sure the multi-channel will be necessary; I'm gettin the pioneer DVH P7000 head unit that powers 50W per channel. for 300 dollars, I'm not sure I'll even notice the 25W difference in the full-range ones, or will I? Do you think it'd be worth it Jmac?

P.S. thanks for taking the time to answer all my questions by the way.

 

[C/U Kid 10+ year member]

is the 50 x 4 listed a peak, not RMS? http://www.digitalfotoclub.com/products/Pioneer_Pioneer_DVH-P7000_Dual_Zone_DVD_Receiver_dvhp7000.html

i'd better start ordering, dang cant afford it all at once. oh well.