2 channel, 4 channel ????

[Nova_Houch7]

Question is: to power 2x12" 800watt subs, am i better off getting a 2 channel amp or wat?

I dont understand how to do all this bridging stuff from a mono amp.

i dont know a whole lot.

Ive currently got a alpine cda-9831r (50wx4) infinity 6x9's (3 way 300watt) 2x12" kenwood subs which im using temporarily (800watts each).

Any help will be much appreciated.

Thanks, Luke:thumb:

[Adam]

To power 2 subs in bridged mode, you'll need a 4 channel amp.

As bridged mode means one sub uses both channels.
So one sub=2channels.

I ran 2x12" Xplod subs off one 4ch amp.
You'll also have to make sure your headunit has 2 sets of phono outputs, if not you'll have to buy a phono splitter.

[philly]

as above.

splitters are easier and less wires to mess around with.

[Jack]

What model are the subs? Need to look up some specs on them before recommending an amp :thumb:

Generally avoid bridging if you can, tends to produce lower power than having a single dedicated 2 channel amp. Having said that, I currently have one single JL sub running off my Alpine amp at 300WRMS; but adding another sub presents a load where both subs still get the optimum 300WRMS power.

[bigbened]

for two subs you only need a two chanel

[Nova_Houch7]

for two subs you only need a two chanel

So i do only need a 2 channel amp then yeh?

L

[Nova_Houch7]

What model are the subs? Need to look up some specs on them before recommending an amp :thumb:

As for the sub model.........i dont remember what they are, ive had them a fair while, ill have a look for you!

P.S. will a 3000watt 2 channel amp be too powerful for the subs and damage them, or will it not affect them,and the subs just use the power they need or what?

L

[Nova_Houch7]

http://www10.uk.shopping.com/xPF-Kenwood-KFC-W3005;jsessionid=DE17BE2C8ECE91F4B3CF65123CDF1998? convertedToHyphens=true

States that they are 700watts each here, 350wrms.

L

[Nova_Houch7]

i know that they are'nt the best of subs, but they didnt sound too bad when they were in my uncles Ibiza being run off an xplod 1600.

I did get them free in the twin box too, and will be using them until i get a car that is safe enough to upgrade my ICE, since the nova has been tampered with a few times now.

L

[Jack]

Kenwood don't have online manuals for their speakers, handy :roll: so you're probably best off with a 2channel amp. Look for one that outputs around 300W at 4Ohms per channel.

Alpine MRP F450 will bridge to 200Wx2 @ 4Ohms RMS, 350W PMPO - could be well suited to the Kenwood subs as I wouldn't assume Kenwood's quoted ratings are entirely accurate

[Nova_Houch7]

How about an amp that was like this :

Maximum output power

2 x 750 Watts @ 2 ohms
2 x 500 Watts @ 4 ohms
1 x 1000 Watts @ 4 ohms (bridged)

Wat u think?

L

[Jack]

Look at the RMS (continual) power figures rather than the PMPO (peak max) power figures. I'd guess the RMS on 500W PMPO @ 4Ohms would be about 2-250W, if the figures are all accurate thats a little underpowered for the subs but should run them fine.