k my amp is the kenwood KAC 8452. 4 channels and i plan on running 2 components of the front 2 channels and one sub off the rear
my concern is that the sub is a dual voice coil and can run either 2 ohm or 8. i want to run 2 ohm off the rear (for the sub) but my amp does not say what the rating for 2 ohm bridged will be.
it says its 2 ohm stable and states:
70Wx4 at 4 ohm
100Wx4 at 2ohm
and
Bridged:
200Wx 2 at 4 ohm

will i be ok to run 2 ohm bridged for the sub? wat kinda power will i be getting?

 

That amp is 4ohm mono stable 2 ohm stereo stable....so you will be running under the reccomended ohm load like that....might throw the amp into protection....or fry some stuff inside........

 

very good to know!
can you recommend any decent 12" 4 ohm subs? not looking to spend too too much either.

 

if i ran the sub in an 8ohm set up, would it hit hard at all since im only running one sub?

 

It would only get 100 watts......what did u want to spend on a new sub if you had to get one? I would tell u to jst hook the sub up anyway and see if you think its ok for now....

 

i dont have the sub yet is the thing. not trying to be cheap on myself but in the neighbor hood of 50-100 bucks for a single 12". Ive been searching more of ebay and forsales from other members to be honest. i figure thats the easiest way to get higher quality at a lower price...so long as im careful.

 

E-bay is a great place for deals, but you never know what you'll get. I think the Pioneer TS-W306C is a great 4-ohm single VC sub that's under $100 retail. It's in the $70-$80 range We've had some stupid people go home with these and immediatly mess with gains and beat the crap out of em and they still last. Plus they sound really decent. They make a DVC version as well. Definatly where it's at for the money!

 

sounds right up my alley for now!
im under the impression that you want a sub that can handle more than your amp can put out....is there ever a limit to how much more power the sub can handle compared to the amp? ex. 200wat amp and 1000 watt sub
if a sub has more power handleing abilites gona sound as good/hit as hard as one that handles closer to the amps out put?

your guys kick *** with the advice! really really Appreciate the help!

 

First let me start off by saying you are probably seeing cheaper brands that have their peak power ratings all over the product info. You ALWAYS need to look at rms ratings of the product...wether its an amp,speakers,subs...you need rms ratings not peak. Now that that is out of the way let me get into the other stuff.

You ask about having a subs that can handle more power than an amp puts out and if there is a limit.....Its really the other way around. You can run more power to a sub or speaker than its rated, to a limit....Lets think of it like a vehicle. The sub is the chassis of the vehicle and the amp is the engine. You dont want a huge massive chassis(sub) with a tiny engine(amp). It will be slow and not perform like the chassis(sub) is build to do and the engine(amp) will have to work alot harder to try to get that heavy chassis(sub) moving. You want to match the two as close as possible. BUUUT you can put a bigger engine in the chassis as long as your "smart" with how you drive(listen) and have eveything set up. If you get greedy and start mashing the gas everywhere the chassis(sub) wont be able to keep up with the engines(amps) performace and you will probably wreck or break something.....or blow up the sub or speaker. There is many many many many things the effect the power handlings of speakers jst like cars have many other things the effect the performance of the car.......I hope the didnt confused you lol. Its pretty simple to get the concept, but when you get into it, it is incredibly complicated.

 

crystal clear! really good job on the anology!

i get what your saying and i just ordered an alpine swe 1242. rms is posted at 250 per alpine and peak is 750. it will never see that high with my current set up and 200 rms is what i will be pushing according to the amp specs. i figre if i take it easy on the input sensitivity for the sub i should have no worries. also what would you recomend the max for the input sens. be for the stock head unit? the amp says 5 min. and .02 max