using 4 channel amp on DVC sub?

Thread view:

Enable EMail Alerts

Start New Thread

Thread rating:

Dr Nick - 29 Jan 2006 18:59 GMT

hey, I posted before about my friends durango, he was orignally looking for
a stealth box for it, he found one but the fact that it's twice the price of
his toehr option (getting a normal component sub) he's going to go with a
single 12". he already has an amp (sony xplode xm-475gsx) it's 4 channels X
75 watts each. now with a DVC sub it's possible to bridge those 4 channels
down to 2 (150 X2) and then feed each of those into a voice coil (so each
voice coil will be getting 150 watts) right? how do you wire that (being
that a box only has one set of terminals) do you just put both +'s into 1
terminal and both -'s into the other?) just looking to answer this for him
before I tell him what to order. thanks!

-Nick

Reply to this Message

MOSFET - 30 Jan 2006 00:31 GMT

do you just put both +'s into 1

> terminal and both -'s into the other?)

Noooo!!!! That's what you certainly DON'T DO. That would present a 2 ohm
load (I presume) AND it would mean you would be bridging all 4 channels of
your amp into one, which is a no-no. What you're describing will work, but
only if each voice coil is 4 ohms. When you bridge an amp like the Sony,
you can only drive 4 ohm loads (or larger, of course). If the voice coils
are 2 ohms each, you WILL destroy the amp.

As far as how to connect them, you will have to add another set of
terminals, or simply drill a hole in the box, run the wires through, and
caulk the hole closed.

MOSFET

Reply to this Message

Dr Nick - 30 Jan 2006 03:37 GMT

> do you just put both +'s into 1
>> terminal and both -'s into the other?)
[quoted text clipped - 11 lines]
>
> MOSFET

haha, I was PRETTY sure thats what you DIDN'T do, but I figured I'd ask, the
sub hes looking at is 2- 4 ohm voice coils, because of it being a 4 channel
amp I was pretty sure he can't do a 2 ohm load, so just add a set of
terminal cups or drill holes, simple enough. do any box makers make a box
with 2 terminal cups? (Q-logic or any of those?) I'm going to find out in
detail what he wants to do with his sysem (if he just wants to add a sub, or
eventually replace the speakers as well, ebcause if he is, I'll tell him to
save the 4 channel for the speakers and buy a mono amp)

thanks for the help

Reply to this Message