Infinity sub question
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=57156
Printed Date: May 16, 2025 at 6:43 PM
Topic: Infinity sub question
Posted By: Redstorm3
Subject: Infinity sub question
Date Posted: June 06, 2005 at 11:08 AM
I was doing some shopping and came across these subs:
Infinity 12" Subwoofer (1242W)
Peak power handling (watts) 1000
RMS power handling 300
does anyone have any pros/cons about these subs? If the subs are decent could my Kenwood KAC-7201 handle them?
800 watt peak
150 watts RMS x 2 at 4 ohm
230 watts x 2 at 2 ohms
460 watts RMS x 1 bridged output at 4 ohms
variable low-pass crossover (50-200 Hz at 18 dB per octave)
selectable high-pass crossover (150 Hz at 12 dB per octave)
selectable bass boost (12 dB at 90 Hz)
Replies:
Posted By: burns25
Date Posted: June 06, 2005 at 11:34 AM
They're good subs depending on the music you listen to. As for your amp, it should be fine to run one of them. If you're going with 2 get a mono amp. The subs are a bit power hungry and they sound better with more power. We ran 8 of them off of 2 mtx 942's and they sounded ok i guess. They just aren't very clean for hip hop music at all.
Posted By: Francious70
Date Posted: June 06, 2005 at 1:15 PM
I beleve that sub is a 4 ohm DVC, meaning your options a 2 ohms and 8 ohms. Your amp is a 2 channell that is only stable for 4 ohms up bridged, so yes, it will work, but not safely. You will either hit the protection is you wire it for two ohms, or at 8 ohms, you will get half the rated power for 4 ohms bridged.
Now, if you 2 subs, that's a different story alltogether.
Paul
Posted By: Redstorm3
Date Posted: June 06, 2005 at 1:42 PM
basically i would like to purchase 2 12" DVC 4ohm subs that will run on my amp, does anyone have any recommendations (not looking for expensive subs)
Posted By: Francious70
Date Posted: June 06, 2005 at 2:57 PM
The Infinity's would be great. FWIW I run a Kappa Perfect and love it for rock/rap/country/classical/ whatever. Those 2 References would be great.
Posted By: jdog0411
Date Posted: June 06, 2005 at 11:37 PM
Not sure what you are looking to spend, but I would get Kappa Perfect over those reference subs ANY day. I picked my 12" Perfect up for 130 bucks shipped and it is one of the best subs out there. I think you will find the same recommendation among anyone else who has owned one. ------------- 2004 BMW 325ci.
Alpine CDA-9885
JL 300/4 and 250/1
JL XR 5.25 comps
Infinity Kappa Perfect 12
Posted By: takenguitar
Date Posted: June 07, 2005 at 3:48 AM
i've installed alot of infinity stuff, and the kappa perfect is a really good sub. never had a problem with any of them in my shop.now if that is a bit out of your price range you should be fine with the reference subs . good luck man. ------------- mark brasil, alpine 9811, ppi 6600 6ch amp, planet audio comp. set(2), custom built slot portbox,3-4yr old audiobahn alum q 10",ppi 1000 watt amp, 04 scion xa
Posted By: sedate
Date Posted: June 07, 2005 at 1:12 PM
I'd trade my 13W6 for a pair of Kappa Perfect's anyday.
-------------
"I'm finished!" - Daniel Plainview
Posted By: Francious70
Date Posted: June 07, 2005 at 1:55 PM
That's a strong statement about Infinity's quality. The #1 reason why I run Perfect's. 
Paul
Posted By: No1stunna
Date Posted: June 07, 2005 at 2:43 PM
I have a kappa perfect 10.1d dual 4 ohm, in a .6 cu ft box as recommended by infinity, and I love the sound quality, but am a little dissapointed in the level of output. It just dosen't get very loud before it bottoms out. I have a alpine mrd m605 amp running it right now,which is a little big. I did have an old rf punch 100x2 on it and it hit harder in the low range 20-40hz but it would start clipping at high volumes. I have no way of running line level inputs to it (I have a mazda 6, and there is no dash kit available for aftermarket hu) so that may be part of the problem, but previously I had the infinity in an 01 4-runner and it was about the same with a good line input. Is the box too small, or do i need a vented??????? Anyway I love the sub, for sq its great, very low response, and I would recommend it . i got mine for around 110 shipped with warranty.
Posted By: jdog0411
Date Posted: June 07, 2005 at 3:38 PM
The infinity specs are conservative....I would increase the volume of your box. Model it up in WinISD or have someone on the forum do it...you would be surprised. I have experienced the same thing with my Perfect 12 SVC....I am only putting 200 watts to it, and I have it in the Infinity recommended 1 cubic foot box, and it does sound great, but it hasn't been all that loud (see some previous posts of mine on the subject). I am building a ported box to experiment with the sound. It isn't the sub though, it needs a little more power and a little more volume and I think it will be loud AND sound great like it does now. ------------- 2004 BMW 325ci.
Alpine CDA-9885
JL 300/4 and 250/1
JL XR 5.25 comps
Infinity Kappa Perfect 12
Posted By: No1stunna
Date Posted: June 07, 2005 at 3:42 PM
Thanks, let me know how the box affects it, I don't have any money for a new box as of now, due to basement remodeling, but will in the near future. So are you suggesting a ported or vented box, or just a bigger sealed?
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