Guys, i have two subwoofer as below.

Size : 18"
ohm : 8
Program Watt : 400
Peak Watt : 1600

1. ok, i have two of those, i will wired those two in parallel that makes it configured at 4 ohm load.
but since it is parallel, how many watt max is allow to feed them?
800w or 3200w or 400w?

2. my 2nd question,
i have an amp that give out 2800w bridge at 4ohm.. does it safe to run those two sub?

3. 3rd question,
my amp says,
2x1100w at 4ohm.
if i wired those sub at only one channel and left one channel empty.. will it damage the amp?
at this configuration, each sub will receive 550w.. am i right?

thanks guys.. hoping u guys are able to help to prevent damages and so that i can full use of these sub capability..

This post has been edited by PowerHouse: Aug 18 2011, 01:08 PM

1. still 400w each... so you need at least 800w @ 4ohm...

2. wont say save or not... because it all depends on how much the sub could really take... and also make sure you do your scoping on the amps to really know where does it clips and stuff... that way you can keep your setup safe...

3. yes each sub will get 550wrms... the other channel... i guess your RCA will have to use a mono RCA... best not to feed the other unused channel with audio signals with no output.

1. Bro, my amp says 2x700watt at 8 ohm. do u think it is better for me to run in stereo mode.. 700watt each channel?

2. was about to say Safe, not save.. salah type hihi.. ok i see the "clip" fuction.. so it is best not to turn the volume till clip led up?

3.550w is not enuf right? because it says peak is at 1600w..

hey Thanks bro..

better wire them in series so that each sub gets 350W @ 16ohm

or just wire it direct, play stereo, each sub gets 700W @ 8ohm, better....

in series, but i want to make use of all the capability bro.. i just need to know, how much power can these two sub receive since the peak is 1600w.. if i wired in parallel means that the peak will be 3200w.. is it safe to put on 2800w at 4ohm?

but your sub rms is only 400W only and your amp is 1100W, rosak la...

just compare rms to rms, not max and max

err.. i thought of wired in parallel and get 4 ohm load and use only 1 channel.. so each sub shud get 550w.. right?
and the other empty channel will be use for monitor or OTHER source later..

if you are not going for a serious SPL competition... using this setup for a long run...

you should use both the channel... 700wrms x 2 @ 8ohm for both subs... that way you run your amp at a safe operating region while giving both subs the right amount of juice to work properly...

the clip function... yea its used that way... be its still better if you scope your amp... its a small fee to pay to protect your investment...

and to tell you the truth... when you are running a full potential 1000wrms SPL setup... you will have to reinforce a lot of things or else you would get a lot of rattling and "self dismantling" of a lot of stuff... plus... your ride's charging system would be choking as well trying to supply those huge current... which in the end, 3 things happens:
1. sub voice burnt, due to "overjuiced"
2. amp failure due to insufficient current supply from your ride's charging system
3. ride's charging system failure due to constant overloading...

your setup... your call

oh guys, forgot to mention.. this is setup for my gig.. not my car.. my car uses 12" kenwood woofer at 300w x2 and 2 ohm load..

This setup is for our church band.
the sub is
http://www.behringer.com/EN/Products/VP1800S.aspx

and our amp is
http://www.iva.com.my/v1/detail.asp?pid=69

by the way guys, thank you so much for ur response..
craziechild, so i guess i go for stereo mode 700w x2 at 8 ohm.. thanks mate

that's why i was wondering which amp can do 8ohm at 1k+ rms..lolz

For me, it was the 700RMS thingy at 8 ohm that have my eyes pop-out.

hihi sorry guys.. didt not give full details.. anyway.. thanks i'll go for 2x700w at 8 ohm..

hahaha i was more puzzled when he said this

TS, in case u wan to use them in car, i got a 12v to 240vac inverter.....3k watts....lolz

hahaha.. u guys funny.. using inverter will not help either as the amp needs atleast 1000w of power to drive them.. hihi

zennn: u know what is monitor right? stage monitor? answer ur puzzle

i think everyone has the right to be puzzled/boggled as this is the car ICE section after all lol

thinks u didn see my reply clearly....my inverter give u 3k watts, not 1k :>

zenn sifu, you mean rosak even is playing in normal volume?

very risky la, have to play low volume & set amp at lowest gain...

hihi but the law is the same..

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Added on August 22, 2011, 3:51 pmtq bro, mail it to me ya.. i'll pm u my add hihi.. so that i can power the sub and put it in my wira hihi... and the 18sub too.. hihi


This post has been edited by PowerHouse: Aug 22 2011, 03:51 PM