Choosing amp to power Infinity Kappa perf

As the Title says, I am trying to choose an amp to power a single Infintiy Kappa Perfect 12in Sub.

I'm thinking something along the lines of 500W RMS should be good. Is that too much or not enough?

Also, How are the Kappa Perfects in terms of SQ? SPL is not an issue, I just wnat SQ, nice tight bass. I'm thinking that the Kappa in a Sealed enclosure would do very well.

Also, I'm thinking about a 12in Cerwin Vega:
12 Inch Cerwin Vega
15in Cerwin Vega
What do you think about those? Cersin Vega has always made excellent SQ stuff. Are these subs good for SQ?

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*Thump* *Thump* Is this thing on?

Can anybody help me out?

I'm looking at a few Memphis amps right now. Is Memphis a good brand? I know they have some really high power stuff, but I don't know if it's any good.

Please help me.

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Memphis is a really good brand. Throw a Memphis 500 monoblock at that sub and you should be just fine.

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~The Rookie~
Rookie of the year that is...
Don't let the smoke out of your equiptment..it doesn't go back in.

Is the Infiniti Kappa Perfect 12in an acceptable amtch for a system that contains basically Nak stuff?

I mean, how well will that sub integrate with a Nak 700 Cd HU? Will it be excessivly boomy? I really don't want that.

Also, with That Nak HU, I will be using a pair of Nak 6.5in Components, and a pair of Nak 6x9 in Coaxials. To power all four of these speakers, I am going to us a Nak amp that is rated for 100w RMS x 4. Is that a good combo? How well wil the Kappa Perfect integrate with this system?

Should I get an Equalizer? I have used them before, and I do know how to properly tune them. I just have never used all this Nak stuff. Is Nak stuff good enough by itself? Meaning will it sound awesome without the use of an external Equalizer, only using what is built into the HU to tune the system.

Thanks for your respone. Could you give me a link to Memphis Audio's Home Page, I can't find it.

P.S. This entire system is going into a '92 Infiniti Q45 if that matters.

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That Nak amp, i presume to be the PA 1004 or the 2004, depending on what ohm load your running, will be plenty of power. Remember nakamichi amps are very clean, and are underrated as well. The CD700 is fine, since it is manually adjustable for all frequency's and you can adjust your bass, treble, mids, fade, etc from it. You have no need to get an equalizer, as the 700 will provide you with everything you need from that department. I do recommend the Nak Components, the SP-S6500, the 6x9's are really up to you though. I got a pair of them hooked up in my room stereo and they sound great, but for car audio, i really see it lacking midbass. Then again i have a million woofers hooked up in my room so they are excellent for my highs. The 6x9's would be fine, just get some good woofers in the back. Out of the two woofers listed above, i'd stick Cerwin, just because i've liked their products for a long time and the lastest infinity line of woofers hasn't struck my fancy... JBL makes a good woofer too for the money, not exactly SQ, but it works. I have 2 Nakamichi SPW120's hooked up in my room, in a custom built downfire enclosure, and they power more bass than i could ever need. Great SQ and they get loud. Hope this helps.

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"I don't play games. I play Nakamichi and that for real yo" - Probably some japanese kid said this in the early 80's trying to sell stereo out of his trunk lol.

Kappa Perfect subs are excellent overall performers for the price.  Not the best in any category, but certainly outperform most others at their price point.  I run a single Kappa Perfect 12.1 in my personal car with a 100 watts amp and it is exactly the bass I need.  They are rated at 350 watts RMS, but will handle a little more as long as you don't plan to run them at max volume all the time.  Memphis amplifiers are excellent quality.

I would not recomend a CV subwoofer for an SQ setup.  JBL subs (especially their GTi series) are top of the line SQ performers, but at a much higher price point than anything from Infinity or CV.  You should not need an EQ with the CD700II head unless your vehicle is a difficult setup or your mains speakers are marginal.

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Thank you for your input.

Here are two amps that I have narrowed it down to:

Orion 1200D
MemphisD 1100

Which one of these amps is the better of the two? Are they a good value at that price? How are they on features?

I like that they both have plenty of room to allow the system to "grow".

So, I guess i'm asking for any input on these two amps.

Thanks a bunch
-Brien

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Also, heres another amp from Nak:
Nak 1000 W amp

What do you think about that one? How does that compare to the Memphis and Orion amps?

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I've tested the Nakamichi and it is very celan and under-rated.  A bit more expensive than the other probably.  I cannot comment on the Orion or Memphis as fas as "which is better" since they are both good amps but I have never tested them side by side.  I'd say any of your choices represent good quality gear.  If you plan to run this large an amp with a single Infinity sub, you will have to be careful that you set it up correctly and do not crank the volume or you run the risk of blowing the sub.

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That's where a proper gain setting goes a long way. To prevent blowing the sub, I mean.

Go to this thread, I consolodated all of my selected gear into a list on there:
Here's what I have so far

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On the sub issue. You seem rather concerned about it being "boomy." Your design and construction of the enclosure will generally have a larger effect on this than the woofer selected. I've heard great things about that infinity line for the price. I'd say go for it.

I don't think I'd be throwing quite that much power at a single infinity. It isn't that you couldn't - if you were careful, I just don't see any reason why you would want to. Save some money and get a Memphis 16-MC500D instead of the 1000w version.

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New Project: 2003 Pathfinder

Well, There are a lot of subs out there, that no matter what enclosure you put them in, that just sound boomy.

By boomy, I mean excessively loud compared to the rest of the frequency range. I don't want the bass frequencies to be overenphasized. As you can probably tell, I am going for the "ultimate" in sound quality.

If I were going for mainly SPL, I would throw a Adire 12in in there, but with this system, the Adire would definitely overpower the Main speakers. And that is exactly what I do not want.



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One SPW1200D is plenty. I highly recommend it! Here is a picture of mine (i sold it a couple weeks ago) but it was great! NAKAREVISED.jpg

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"I don't play games. I play Nakamichi and that for real yo" - Probably some japanese kid said this in the early 80's trying to sell stereo out of his trunk lol.

Poormanq45 wrote:

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Well, There are a lot of subs out there, that no matter what enclosure you put them in, that just sound boomy.

By boomy, I mean excessively loud compared to the rest of the frequency range. I don't want the bass frequencies to be overenphasized. As you can probably tell, I am going for the "ultimate" in sound quality.

If I were going for mainly SPL, I would throw a Adire 12in in there, but with this system, the Adire would definitely overpower the Main speakers. And that is exactly what I do not want.

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I think you may be a tad confused.  The infinity or the nakamichi subs you're looking at are just as likely to be "excessively loud" as the Adire.  In fact, Adire xbl^2 enabled subs are generally regarded as higher SQ subs than either Nak or Infinity. 

I stand by what I said earlier.  The enclosure will play a much larger factor in balancing your system than the subwoofer itself for sq.  For sq you're simply looking at clean, accurate, and deep for the sub.  Then build a low q sealed sub box for low extenstion and transient response.  Finally, attenuate sub output at the deck or amplifier level to match speaker levels.  I don't see what the "overpowering" concern is.

Furthermore, I don't see how shopping between brands like this is going to help or hurt you with regards to "overpowering" or "boomy" or whatever you want to call it. 

You may respond by saying you've heard many systems that were too boomy or overpowering with bass.  Right... but those people either designs their systems that way or didn't know what the hell they were doing.

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New Project: 2003 Pathfinder

^^^^ that is a good post.

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