turning a 8 ohm punch to 2 ohm

Home / the12volt's Install Bay / Car Audio / turning a 8 ohm punch to 2 ohm (

Topic Closed)

Welcome Guest :)

Members

< Prev Topic Next Topic >

solosoft

Member - Posts: 2

Joined: May 12, 2008

Location: Ontario, Canada

Posted: May 12, 2008 at 6:57 PM / IP Logged

I googled and looked around but was unable to find a solid answer on this if it's even possible. So if there is somewhere around here where I could find this information im sorry I couldn't find it.

I have a 12" Rockford Punch P1 subwoffer on a 480w Power Acoustics Amplifier. The Sub is running @ 8Ohms and the amp can handle 2ohms. I was wondering if there is a way (other then cramming another speaker in) to drop the ohmage to 2. The amp is running at 8ohms right now and of course it's not really pushing all it could. I had 2x Rockford Punches but they no longer sell that line of rockfords anymore and blew one of the pair.

So to sum things up ... basicly im looking for a way to "jimmy rig" my 8ohm speaker into 2ohms so I can cram more power into it. I do understand that this causes alot more stress on the amplifier but as of now the thing isn't even getting warm. It's way under it's potental and I would like to see what I can make it do.

Thanks alot ... im really looking forward to becoming an active member of this community. Car audio is a new one of my hobbies.

forbidden

Platinum - Posts: 5,352

This member has made a donation to the12volt.com. Click here for more info.

This member has been recognized as an authority in Mobile Audio and Video. Click here for more info.

Joined: November 01, 2003

Location: Alberta, Canada

Posted: May 12, 2008 at 7:26 PM / IP Logged

Not going to happen dude. I also would not advise running the amp at 2 ohm if it is not designed and engineered to operate that way....unless you want to buy a new amp as well that is.

Top Secret, I can tell you but then my wife will kill me.

solosoft

Member - Posts: 2

Joined: May 12, 2008

Location: Ontario, Canada

Posted: May 12, 2008 at 8:38 PM / IP Logged

The Amplifier is completely able to run @ 2ohms stable. It says so on the box and through research. (heck the model number has 480-2 (the 2 meaning 2ohms)). I was just seeing if I could get a little more kick outa that speaker. Mind you it's only a Punch P1 it does have kick but that amp is maxed out trying to move it @ 8ohms. I was just seeing if there was a way to force the amp down. (It defintiely is bridged now. It should be seeing 4ohms I believe. Im just a sucker for trying to push the most out of my products. That amp is one heavy big heatsink and even after pounding that speaker for hours in the hot sun it's still fairly cool to the touch. That leads me to believe it's not being pushed hard enough ;) I have a 800w Sony amp but I would rather use the Power Acoustics amp since it doesn't have heat issues. If I pound the sony amp for along time unless it's in a ventalated place it likes to get super hot and cut out (@ 4ohms powering a Infinity Kappa 12.1). So there is really no way ? I read somewhere that you could put like a resistor on the line to lower the subs ohm ?? I don't know ... that's why im asking im getting some really funny answers googling. But that's the jist of it.

KarTuneMan

Platinum - Posts: 7,056

This member consistently provides reliable information

Joined: December 14, 2004

Location: Isle Of Man

Posted: May 12, 2008 at 8:48 PM / IP Logged

You did not mention a part # on the amp. If thats a 2 ch. it will NOT run @ 2ohms.

You don't believe everything you read..... do you?

Sorry man, I'm with Rob on this one!

haemphyst

Platinum - Posts: 5,054

This member has been recognized as an authority in Electrical Theory. Click here for more info.

Joined: January 19, 2003

Location: Michigan, Bouvet Island

Posted: May 12, 2008 at 8:57 PM / IP Logged

1: You can't make an 8 ohm woofer a 2 ohm woofer. And 2: 2 ohms per channel means 4 ohm bridged, MAX LOAD. Your amplifier is seeing 4 ohms per channel right now.

Also, being as it IS Power Acoustik, I'd be really careful about pushing it at 2 ohms. Never been a really high quality piece of gear, and I'm thinking it won't last THAT long loaded to it's max.

Now loaded at 4 ohms (which it is right now) it'll probably last a LONG time, and be very happy doing so, thus, the lack of heat as mentioned.

It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

stevdart

Platinum - Posts: 5,816

Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: May 12, 2008 at 9:12 PM / IP Logged

What you should look at working on is

a better sub enclosure, and/or
better placement of the sub, and/or
better damping throughout the vehicle, and/or
a better amplifier
et cetera

Don't waste time researching the impossible jury-rig.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

i am an idiot

Platinum - Posts: 13,671

Joined: September 21, 2006

Location: Louisiana, United States

Posted: May 13, 2008 at 6:06 AM / IP Logged

The 480-2 signifies 480 total watts, 2 channels. The book or amp says 2 ohm stable. That means 2 ohms stereo stable. As stated above that amp will run 4 ohm mono or 2 Ohm per channel. Not 2 ohm mono.

techman93

Silver - Posts: 591

Joined: October 28, 2006

Location: Pennsylvania, United States

Posted: May 13, 2008 at 8:51 PM / IP Logged

Not unless it is a competition amp that has the ability to run at 1 ohm or under. A mono amp runs 2 ohm stable but you will still have a 8 ohm sub. You should sell that sub and invest in a dual voice coil sub that is 4 ohm per coil. That way you can wire it 8 ohm or 2 ohm or run 4 ohm to each channel of the stereo amp you have. The other piece of the puzzle is the amp. Sell what you have and buy a mono amp that is 2 ohm stable.

I think you should have done more equipment planning before you bought what you bought.

The wire I'm test'n isn't doin' what it's supposed to be doin'... I am so glad I printed that tech sheet, with the wrong info.

Do it right the first time... or I might have to fix it for ya

Sorry, you can NOT post a reply.
This topic is closed.

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

turning a 8 ohm punch to 2 ohm

Sorry, you can NOT post a reply.This topic is closed.

Sorry, you can NOT post a reply.
This topic is closed.