Confused still...

[gotgohan 10+ year member]

I read the 12volt.com thing and I still don't understand the RMS. If there is 550watts coming from the amp with 2 ohms and whatever it is at 4 ohms but im going to assume its 275 because thats what 1100 divided by 4 is. Lets see if I can put two and two together, I just found the specs on my subs which are:

A friend of mine has 2 Kenwood KFC-W3003 subs. Here are the specs from the manual:

Single Voice Coil

Nominal Impedance =4 ohm

DC resistance =3.34 ohm

Voice Coil inductance =1.10 mH

Piston area =.0491 sqm

Force factor =9.80 Tm

Volume acoustic =82.84 liter

Compliance =2.925 cu.ft

Moving mass =100.1 g

Fs =32 Hz

Qms =10.45

Qes =0.70

Qts =0.66

RMS =160W

Peak power =600W

Xmax =9 mm

Displacement =0.141 cu.ft

Mounting depth 5-5/16"

Weight of magnet =42.3 oz.

Voice coil diameter =2-9/16"

It says the impendence is 4... im guessing thats the ohm of the sub... if the subs ohm is 4... does it need 4 from amp? if so should I have 8 ohms to do 2 subs or is it something else. because i don't understand it.. the amp now that im told by the specs says it isn't capable of 1 ohm, what does 1 ohm mean does that make it super powerful?

Click to read more...

 

[Idealrealist 10+ year member]

http://www.caraudio.com/forum/showthread.php?t=31984 your wiring options are there

 

[Prowler573 5,000+ posts]

It says the impendence is 4... im guessing thats the ohm of the sub

It is the resistance (measured in Ohms) of the voice coil in he sub to be more specific.

if the subs ohm is 4... does it need 4 from amp?

You do not "get" a certain amount of Ohms resistance from an amp. The amp will output X, Y, or Zed amount of power depending on the level of resistance presented to it. For example: Amp 'A' creates X amount of power at 4 Ohms, Y amount of power at 2 Ohms, and Zed amount of power at 1 Ohm.
Have a look here for a quick reference on wiring multiple subwoofers to the same amp and then read ~

If you have a single 4 Ohm sub then the amp will output X amount of wattage. if you have two 4 Ohm subs and wire them in parallel then that same amp will make Y amount of wattage. If you have four 4 Ohm subs and wire them all in parallel then the amp will make Zed amount of watts.

if so should I have 8 ohms to do 2 subs or is it something else. because i don't understand it..

Review the previous.

the amp now that im told by the specs says it isn't capable of 1 ohm, what does 1 ohm mean does that make it super powerful?

1 Ohm is simply a measurement of resistance as previously discussed and many, many amps are not capable of running stable at resistance loads that low. 1 Ohm is not indicative of "super powerful" or anything else of the sort. It is merely a measurement of resistance created by the voice coil(s) on the sub(s) being used dependant on how they are wired together.

 

[gotgohan 10+ year member]

So wait.. I just seen the dual sub complex, it says if theres 2 ohms from amp, it can't go past 2 ohm on the sub? if thats how I see it, then I need 4 ohms or something like that to run 4 ohm subs. and now that I get this idea do I need a special gauge wire. Right now I have 18 guage cable.. what if i used 22 guage or 16 guage would it make it any different in sound properties

 

[Bake 10+ year member]

Lots of good reading here that may help clear things up for you.

http://www.bcae1.com

 

[Prowler573 5,000+ posts]

So wait.. I just seen the dual sub complex, it says if theres 2 ohms from amp, it can't go past 2 ohm on the sub? if thats how I see it, then I need 4 ohms or something like that to run 4 ohm subs.

I have absolutely no idea what you're talking about here //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

and now that I get this idea do I need a special gauge wire. Right now I have 18 guage cable.. what if i used 22 guage or 16 guage would it make it any different in sound properties

No it won't change the sound properties as far as the resistance shown the amp goes but I wouldn't suggest putting large amounts of power through wire as small as 16awg or 22awg (the larger the number the smaller the wire)

 

[gotgohan 10+ year member]

Okay okay, I understand a lot more now, before I read that other site posted. I just have two more questions. What is the difference between single voice coil and two? before I go to my next question, I believe my amp that is 124 watt will shut off if I go past a specific volume on either the amp or stereo it will shut off the amp and I have to turn it back on, because it is a self turn on amp. I think it is 8 ohms tho, so if I have 2 SVC's at 4 ohms a piece, should I connect it like it says in option two with 8 ohms of resistance going from positive of the amp to the positive to the one SVC, then then negative to the positive to the other SVC, then that negative to the negative of amp. will that make it more possible for more power from the amp I got

 

[gotgohan 10+ year member]

wait can I talk to one of you guys on aim or msn, because it would help to have direct talkin

 

[Prowler573 5,000+ posts]

AIM ~ Prowler0573

 

[gotgohan 10+ year member]

okay I added you, but I don't see you, try messaging me, my aim is burninggohan

 

[soul05 10+ year member]

http://mobile.jlaudio.com/support_pages.php?page_id=145

here are some more diagrams for wiring.