i have 1 kicker mono amp model ZX750.1 and 1 12"L7 kicker 2ohm.

a buddy of mine told me to wire it like the diagram below, wiring it like so will i get the maximum preformance out of my sub??




Modified by SiR Inspired ED7 at 3:17 PM 5/23/2008

 

You might encounter a problem. You will only be supplying the subwoofer with 375 watts. Your options with what you have
are ---> http://www.the12volt.com/carau...&I=22
You need a 4ohm dvc sub or a 1ohm stable amp. Heres an amp that would
work ---> http://shop2.frys.com/product/...LT_PG
The amp is around the same price as a new sub and would give you room to add another sub later(but adding a sub would run you into this same problem later). But switching out the sub might be the best idea if you can trade it. Either way you have a piece of equipment that you cannot use.

 

In terms of the "maximum performance of the sub" remember doubling of amp power only results in +3db increase in SPL. In terms of max performance of sub I personally think enclosure design and placement generally plays more into a sub performing at "peak performance" than amp power other than in situations where a sub is incredibly under-powered.

RMS of this sub is 75-750 watts. If Kicker says you can drive this sub with as little as 75 watts than I'd default to your listening tastes....are you a hip-hop/tech-house/breaks type of person who enjoys concert/club-level volume? Or a bit more modest person who occasionally like to push the system but generally listens to a system that still allows a conversation to be heard?

And lastly if you do decide to go with an amp that is 1 ohm stable......make sure you've got enough cooling space around your amp. I've personally never owned an amp where recommended air space was even close to adequate to keeping the amp anywhere below the temp of molten lava when pushed for extended periods of time. After an hour of pushing the system, my xtant 4.4 was so hot you'd get burned/red blister if you touched it for more than a few seconds...seriously. Same thing with my old Orion 250 sx and Soundstream

 

i play hip hop, and sometimes trance/rock.
so what way to wire it to get the 750 watts rms from the amp to the sub?


Modified by SiR Inspired ED7 at 3:11 PM 5/23/2008

 

There is no way to wire it to get 750W out of the amp, your sub is a DVC 2 ohm, it can be wired is series, like you show, for a 4 ohm load, if the VCs are wired in parallel it will be a 1 ohm load, your amp is not stable below 2 ohms and is rated at 1x750W RMS into 2 ohms.
The sub will work pretty good with that amp if wired as you show and the sub is in a vented box.
Your other option is to get another amp the Kicker ZX1500.1 will make 1x750W RMS into 4 ohms.
Get an amp that allows you to wire the sub to 4 ohms, it will sound a lot better then if you have to wire to 1 ohm, and that amp will run very hot. 94

 

i just got a hold of a buddy of mine and he told me to just exchange the sub i have for a 12inch L7 forum and to wire it to a 2ohm load and i will get 750 watts out of it anybody want to back this up, by the way this is going in a 2001 blazer with a ground shaker ported box/enclosure

 

Yup this will work. You'll want to purchase the 4 ohm DVC version of this sub, wire it in parallel to get a 2ohm load and this will provide the 750 watts you want to send to the sub. Here's some text and pics on how to wire in parallel

http://www.termpro.com/articles/spkrz.html

Treat the 2nd sub in the pic as the 2nd coil on your sub and you'll also want to make sure the sub bindings posts will accept the gauge of wire you select since one post will be containing 2 speaker wires.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thekid03 &raquo;</TD></TR><TR><TD CLASS="quote">Yup this will work. You'll want to purchase the 4 ohm DVC version of this sub, wire it in parallel to get a 2ohm load and this will provide the 750 watts you want to send to the sub. Here's some text and pics on how to wire in parallel

http://www.termpro.com/articles/spkrz.html

Treat the 2nd sub in the pic as the 2nd coil on your sub and you'll also want to make sure the sub bindings posts will accept the gauge of wire you select since one post will be containing 2 speaker wires.</TD></TR></TABLE>

call me stupid but i didnt understand what you are tryng to say?


thanks for the info schmiddr2

 

naaah it's all good.......ok, so your amp puts out 750 watts at 2 ohms. We have to look at how to obtain this impedance and this is determined by nominal impedance of speaker along with how it's wired. Your first diagram shows how a speaker is wired in 'series' which doubles the impedence which causes the watts that are sent to the speaker to be cut in half.

So, let's say we have an amp that puts out 100 watts at 4 ohms. If you connect a wire from positive terminal of amp to positive terminal of speaker and do the same for negative you'll be sending 100 watts to speaker. Wire the speaker in series and speaker will only see 50 watts and depending on amp specs wiring in parallel would result in around 200 watts being sent to speaker.

You've got me thinking though and realized the specs on Kicker's site which mention "2 or 4 ohm DVC" is not 2 models but rather one model...Crutchfield says it's a 4 ohm speaker. For a DVC speaker you'll see a 2 positive terminals and 2 negative terminals. So, if we've got a 4 ohm speaker such as this sub wiring it in parallel will give you the 2 ohm load that's necessary to send the 750 watts to the sub.

You'll take a piece of wire and connect it to both positive terminals of speaker and then take another piece of wire and connect the negative terminals. You'll then insert another wire into one of the positive terminals and connect this to the positive terminal of amp and another for the negative. And this is why I mentioned about the speaker wire gauge. One set of speaker terminals will have (let's say you're using 10 gauge wire) a single 10 gauge piece of wire inserted while the other set of negative and positive terminals will have 2 pieces of 10 gauge wire......one going to other set of speaker terminals and other wire going to amp.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SiR Inspired ED7 &raquo;</TD></TR><TR><TD CLASS="quote">i just got a hold of a buddy of mine and he told me to just exchange the sub i have for a 12inch L7 forum and to wire it to a 2ohm load and i will get 750 watts out of it anybody want to back this up, by the way this is going in a 2001 blazer with a ground shaker ported box/enclosure</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote"> There is no way to wire it to get 750W out of the amp, your sub is a DVC 2 ohm, it can be wired is series, like you show, for a 4 ohm load, if the VCs are wired in parallel it will be a 1 ohm load, your amp is not stable below 2 ohms and is rated at 1x750W RMS into 2 ohms.
The sub will work pretty good with that amp if wired as you show and the sub is in a vented box.
Your other option is to get another amp the Kicker ZX1500.1 will make 1x750W RMS into 4 ohms.
Get an amp that allows you to wire the sub to 4 ohms, it will sound a lot better then if you have to wire to 1 ohm, and that amp will run very hot. 94</TD></TR></TABLE>

Or change the sub to a DVC 4 ohm. 94

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thekid03 &raquo;</TD></TR><TR><TD CLASS="quote">Yup this will work. You'll want to purchase the 4 ohm DVC version of this sub, wire it in parallel to get a 2ohm load and this will provide the 750 watts you want to send to the sub. Here's some text and pics on how to wire in parallel

http://www.termpro.com/articles/spkrz.html

Treat the 2nd sub in the pic as the 2nd coil on your sub and you'll also want to make sure the sub bindings posts will accept the gauge of wire you select since one post will be containing 2 speaker wires.</TD></TR></TABLE>

so this is what im going to go with , i buoght the kicker 4 gauge complete amp kit so i shouldnt have any probloms. but with that one terminal thats going to use 2 wires thank you very much thekid and fcm

 

Going with what, a new amp or a new sub??? 94

 

im going with a new 12" L7 4ohm sub a local audio shop sells it to me for 200 bucks but im still going to look around to see if i could get cheaper thatn that , but currently i have that 2ohm sub it bumps pretty good. i cant wait until i get my 4 ohm sub. i have a little problom thoe when the volume is down all the way on my deck there is a litle base comin throught on the sub would you happen to know where i can target the problom??thnx

 

Turn the gain on the amp down. 94

 

i turned the gain down and it still made that noise , we inspected the wirering it was all good the problom was comin from my deck i gues the preousts wernt sending a good signel to the amp so i replaced the deck good thing i paied exra for extended warrenty