Going for two amps one sub? In the car audio industry, this is called strapping or bridging and will certainly deliver that power you’ve been looking for – but the most important thing that you should know before even looking at a wire is that you can only connect two identical twin amplifiers.

Once you know for certain that you’re working with two identical amps, you then need to determine if you have a single or dual voice coil sub.

A Single voice coil sub won’t work with the two amps and will result in the outputs being fried as soon as you turn it on. A dual voice sub and the same amps can be done, but it needs to be effectively balanced.

However, two amps one sub is definitely possible.

User posted image

 

 


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Icedoutjetta

Joined: Sep 18 2005
Posts: 814
Location: Guelph Ontario Canada
Post Thu Aug 04, 2011 12:28 am

can i hook up two amps to the same subif theyare both set the same and are the same amps
bad venge

Joined: Jul 28 2007
Posts: 3550
Post Thu Aug 04, 2011 2:59 am

Single Voice coil sub or Dual Voice coil sub ?

A single voice coil sub likely NO the two amps will fry each others outputs

A dual voice coil sub and the Same amps CAN be done but need to be set near perfect to be effective as the gains must match to keep things balanced

Icedoutjetta

Joined: Sep 18 2005
Posts: 814
Location: Guelph Ontario Canada
Post Thu Aug 04, 2011 3:48 am

well thats *** but its ok cuz ill juss use each amp per sub
jmoddes

Joined: Apr 25 2011
Posts: 2142
Location: Kenosha, Wi
Post Thu Aug 04, 2011 4:46 am

woah… hold up… you could either way. just slave the second amp and run the same wire setup.

least thats how its done here.

bad venge

Joined: Jul 28 2007
Posts: 3550
Post Thu Aug 04, 2011 7:29 am

You should NEVER attach two amp outputs together , EVER , The voltages will feed back and blow the outputs in a few seconds…

Certain competition amps can be daisy chained meaning the output of one feeds the input of the next but thats very few amps that can do that …

If you have multiple subs and the amps can run them singly then thats the best route

Tat2Dragons

Joined: Jan 21 2007
Posts: 3404
Location: Baltimore Maryland
Post Thu Aug 04, 2011 8:37 am

Yeah, unless your model amplifier can be strapped and those that can be strapped usually have master and slave controls on them.
Icedoutjetta

Joined: Sep 18 2005
Posts: 814
Location: Guelph Ontario Canada
Post Thu Aug 04, 2011 1:58 pm

okjustsome regular alpine mrp m500 sonodaisychaining with these but yea one amp per sub will do i justwanted to run them attwo ohm so i can use the full potential of the amps
jmoddes

Joined: Apr 25 2011
Posts: 2142
Location: Kenosha, Wi
Post Thu Aug 04, 2011 3:12 pm

bad venge wrote:
You should NEVER attach two amp outputs together , EVER , The voltages will feed back and blow the outputs in a few seconds…

Certain competition amps can be daisy chained meaning the output of one feeds the input of the next but thats very few amps that can do that …

If you have multiple subs and the amps can run them singly then thats the best route

2 Letters… DD

jmoddes

Joined: Apr 25 2011
Posts: 2142
Location: Kenosha, Wi
Post Thu Aug 04, 2011 3:29 pm

User posted image

yes its paint.. shh!

This is how a friend has his 18 woofer hooked up.

runs all day everyday… no issue. its running 1 ohm.. if it was on one massive amp, it be .5 ohm.

his 2 amps are 2000 watts RMS a piece (at 12V). his sub takes 1500/6000 (RMS/Peak)

it works all day everyday. hit a 147.x at a show just to see what it would hit. not bad for a single 18.

bad venge

Joined: Jul 28 2007
Posts: 3550
Post Thu Aug 04, 2011 4:22 pm

The FIRST post I ASKED if he had a DVC _ Dual Voice Coil sub

A Single voice coil sub CAN NOT be connected this way

jmoddes

Joined: Apr 25 2011
Posts: 2142
Location: Kenosha, Wi
Post Thu Aug 04, 2011 6:37 pm

bad venge wrote:
The FIRST post I ASKED if he had a DVC _ Dual Voice Coil sub

A Single voice coil sub CAN NOT be connected this way

got it. thought you meant dual couldn’t… =] my mistake. i miss interpreted. yes i said either way, but i also mis informed you what I mean. Apologies =]