I picked up a pair of these in a dual box that is 1 cubic foot per speaker (separated inside). What size box should these speakers have? What's the max wattage? What should I run for an amp for these guys?

1.75 cubic feet sealed per sub.

I always liked those subs.

I don't know max wattage, but they'll handle plenty if it's clean power and not some overdriven chinese amp.

go to www.kicker.com after a little pecking away on there sight and you find what ever you want about speaker out puts and box sizes they helped me build several different enclosures and you can learn alot there as well all there info is printable as well.
Im running 2 kicker comp cvr's @ 4 ohms in my gta with a punch 500 pushing them and they rock my amp puts out over 500 rms at 4 ohms. make sure that the amp you select puts out the maximum wattage at the ohm range of the speaker that you are using is a good rule of thumb dont go lower on the woofer or your amp will get really hot trying to do somthing that it wasnt desinged to do.

Kickers Motto "Livin LOUD"

Well, along with the subs I got a pair of Audison amps. They are bridgeable to 1 ohm (stable according to the manual!) and they are 280watts RMS. I don't know what the peak is though.

Think that'll be OK, or is that too much?

Well there are a bunch of different scenarios.. as long as you can keep the signal with in the c 12's range I dont see a problem at all unless the woofer is bottoming out(fluttering ete etc)at max out put. the c 12 is compact box recomends 1.75 ft. street base enclosure 2.0 cubic feet deep base enclosure 2.25 cu feet.
As a rule of thumb I have always over powered all of speakers especially my highs they are all rated from 35 watt rms horns to 75 watt rms 5 1/2s coaxials wich i am runnning 12 speakers total in my vehicle.. I have always pushed them beyond there recomended limits and I have never had a problem wich is at least 100 to 150 rms per speaker. BUT ONLY if you send the high signals to your highs and your lows to your lows if you send mid and highs to your highs and its a strong amp your going to burn them puppies up quick.
When my friends see and hear my set up one thing I always tell them" is you can never have Too much POWER"...my ride is always the center of the tail gate partys at the beach here in houston I usually dround every one else out.
Hey Aron and another trick I learned to get more deep and harder bass response from a sub woofer with a medium or small enlosure is to fill the inside of the box with about 75 percent polly fill ( you can get it at a hobby shop I think its used to make pillows) it helps resonate or slow the bass response, thus making it sound like you have alot bigger speaker or larger box give it a try...

Really? I had never heard of that... might have to give it a try!

I believe they are rated at around 300 or 400 watts each. The larger the box, the less power they can take due to less damping from the air inside the box. In the box that you mention, they should be able to take quite a bit of power, even more than they are rated for, due to the small size. As a reference, I have a pair of C12C'c (they are rated for the 1.25 box) running in a a 2 cube box (1 per sub) and I'm giving them about 350 watt's. they can definately take more, and I have a bigger amp in store for them, but not a bunch bigger. This is in my daily driver, and the sound is awesome, but not nearly as loud as the Camaro!

As for the poly-fill, I reccomend filling the box approx. half full, up to about 3/4 full. This sort of makes the box sound bigger, and running those subs in 1 cu. ft. each, you may want it. It all depends on the type of music you listen to, and how you like the bass to sound. If you like rock music with lot's of tight bass, you should be fine, but if you're looking for ground pounding rap-style bass, fill the sucker up. There really is a lot more to system design than just throwing a couple speakers in a box and cranking it up as loud as it will go.....

Any other questions, shoot me a PM.

Ok, so 1/2-3/4 full of poly-fill. Sounds easy enough! Do I pack it in there, or just fill it lightly?


I have a Kenwood 929s 1000w amp that I bridged to these 2 subs... and it sounded really nice! Of course, I know nothing when it comes to amps and ohms and such, so I'm not sure what I'm sending into these things lol

Fill it loosely.

What is the impedence of the subs? They came in 4 or 8 ohm.

Either way, I think you said the amp you are going to run is 1 ohm stable, therefore you can just run them in parallel, either way. The 2 4 ohm in parallel would be 2 ohms. and when bridged, each half of the amp would see 1 ohm of that. That is what I'm running into right now, the amp isn't 1 ohm stable, and it shuts off when I push it the smallest little bit. The amp that I'll be putting in, is 1 ohm stable.

Hope this helps some!

I'm a little lost. Is there a diagram of what you mean?

Hey aron pm me with your address and I will make you a copy of the specs sheets for the subs that you have.(power ratings,speaker box recomendations etc etc)straight from the manufacturer. I have a huge file full of old kicker info & stuff.

as for the amp you stated
here are your specs

kac 929s 2-Channel Amp Specs

2-Ohm Stable
Power Indicator
Screw-Type Power and Speaker Terminals
Speaker Relay Protection
Fully Variable (50-200 Hz) Low-Pass Crossover
Variable Bass Boost at 45 Hz.

Amplifier Type: 2-channel
RMS Power: 150W x 2ch @ 14.4V
Bridged RMS Power: 450W x 1ch @ 14.4V
THD at Rated RMS Power: 0.08%
Speaker Level Inputs: Yes
Preamp Outputs: No
Built-In Crossovers: LP
Bass Boost: 0-12 dB
Frequency Response: 20-20,000 Hz
Channel Separation: n/a
Signal to Noise Ratio: 100 dB
Fuse Rating: n/a

lol 1000 watts my arse!


Is that amp good for these subs? Should I bridge it to get the most power for these?


Thanks for all the info!

Yeah but thats how some amp folks like to dramatise the power ratings of there amps. its at a spike or peak rating that that amp might hit for a mili second once a year at 14.4 volts or more.
rms is the capability the amp has of constant power.
I think you do have a decent amp its not a pyramid or some of the other junk out there..
But yes you should absolutey run it bridged in an attempt to get the most out of that amp.