Amp and Sub question

Home / the12volt's Install Bay / Car Audio / Amp and Sub question (

Topic Closed)

Welcome Guest :)

Members

< Prev Topic Next Topic >

srusin1

Copper - Posts: 86

Joined: September 28, 2004

Posted: January 06, 2005 at 8:32 PM / IP Logged

when an amp says:

Key Features:

» 150 watts RMS x 1 at 4 ohms

» 300 watts RMS x 1 at 2 ohms

» 2-ohm stable

» CEA compliant

and you use two 10" subs in parallel do you get 150 to each sub for a total of 300. what would be the max wattage to a single sub?

spootydlux4

Copper - Posts: 149

Joined: October 03, 2004

Location: United States

Posted: January 06, 2005 at 8:49 PM / IP Logged

what kind of subs do you have? DVC or SVC and what's the impedance of each coil?

blah blah blah blah

srusin1

Copper - Posts: 86

Joined: September 28, 2004

Posted: January 06, 2005 at 9:18 PM / IP Logged

I want to buy two rockford fosgates P110S4 10" subwoofers,handle up to 150 watts RMS, SVC 4 Ohm( they are already in the box from Best Buy).How do I wire to get the most out of it with a mono amp with 300*1 at 2 ohms.What wattage does each speaker get? Is DVC better? What if I ran one sub capable of 300 watts of power, would i be able to get 300 watts from the amplifier on just 4 ohms?

stevdart

Platinum - Posts: 5,816

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.

This member consistently provides reliable information

Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: January 06, 2005 at 11:26 PM / IP Logged

That sounds like a match-up where they are marketed to be used with each other. The subs that are already in the box should be wired together in parallel, so that the total impedance is 2 ohms. The amp outputs 300 watts into 2 ohms, so each woofer gets 150 watts.

You can run one sub that will handle 300 watts, as long as it is a 2 ohm sub (or a DVC4 ohm model with coils wired in parallel). The amp outputs 300 watts into a 2 ohm load and it doesn't matter how many speakers are combined and linked together to achieve that final 2 ohm impedance. The amp just sees a load of resistance. If it sees a 4 ohm load, it will output 150 watts. And a DVC woofer is no better or worse than a SVC. The added coils allow for more wiring flexibility in general.

srusin1

Copper - Posts: 86

Joined: September 28, 2004

Posted: January 07, 2005 at 11:09 AM / IP Logged

For a 2 channel amp when it says 150*2 watt at 4 ohms, what is the max power delivered if you have two subs wired together? Does the 150*2 = 300 if you have a sub hooked up to the 2 diferent channels?

stevdart

Platinum - Posts: 5,816

Joined: January 24, 2004

Location: Pennsylvania, United States

Posted: January 07, 2005 at 11:17 AM / IP Logged

Yes. 150 X 2 is just what it says. A two channel amp is actually two amps, each one outputting 150 watts. It's a design that allows for the reproduction of stereo sound. (Always talking in terms of RMS output, not Max)....the amplifier will respond to the load of impedance on each individual channel. Because we want our left/right sound to be equal, we always place the same load on the left and right channels. If left has a 4 ohm load, the amp will output 150 watts to it. Same with the right channel, for a total output of 300 watts. Remember, it's not the number of speakers that are hooked up to an amp, it's the total impedance of the combined speakers that makes the amp produce power.

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.

Amp and Sub question

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

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