Wattage ?
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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=48891
Printed Date: May 15, 2024 at 1:34 PM
Topic: Wattage ?
Posted By: gbody805
Subject: Wattage ?
Date Posted: January 29, 2005 at 5:29 PM
Ok first, as you read this you will no doubt see I'm new to this. My question is this. If I have a subwoofer with dual voice coils, each coil can handle 500 watts Rms per manufacturer. And I run the coils in parallel. Do I run an amp with a total of 1000 watts? Or an amp with 500 watts Rms? Both are running a single channel to sub. Will the 1000 watt amp sense the two coils and split the 1000 watts? Or I'm I safer running the 500 watt amp single CH. Thanks From Shamed Newbie.
Replies:
Posted By: Francious70
Date Posted: January 30, 2005 at 11:45 PM
First question is what sub are you using??
Paul
Posted By: forbidden
Date Posted: January 31, 2005 at 4:09 PM
Dear NooB, no question is stupid, no worries. If you have a dvc 4 ohm sub wired in parallel and the total rms power handling is 500w per coil for a total of 1000w rms then you need an amplifier that is rated to deliver 1000w rms @ 2ohm mono. This is generally found in the form of a class D mono sub amp. Some of these amps propdcue full output at 1 ohm, others at 2 ohm. Find an amp that will do the job for yuo at the 2 ohm rating.
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Top Secret, I can tell you but then my wife will kill me.
Posted By: gbody805
Date Posted: January 31, 2005 at 7:27 PM
I am trying to run 3 Audiobahn Alum12Qs. Each has 6 Ohm DVC I have them in a triple sealed box 1 cubic foot each chamber. They are wired in parallel to run at 1 Ohm. According to Audiobahn Tech department, each coil should only see 500 watt RMS. I kinda know that if I run them in series the amp should split its output between each load,but I'm not sure how this works in parallel? With this set up what amp should I be looking for, wattage wise to 1 ohm. 3000 watts to 1 ohm mono?
Posted By: Francious70
Date Posted: February 01, 2005 at 11:04 AM
When you wire them all in parallel you'll get a .75 ohm load, whick is unstable for most class-d amps. Wire two in parallel together for a 1.5 ohm load, then add the third in series for a final load of 3 ohms. The most I'd recomend is 1 JBL GTI6000. A JBL 1200.1 is all I'd put to those sub, cause we all know audioblow can't handle what they say they can.
Paul
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Posted By: forbidden
Date Posted: February 01, 2005 at 2:19 PM
3 DVC 6 Ohm drivers with Voice Coils in Parallel / Parallel
Dual-6 Ohm Subwoofers: 1 Ohm
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This is the proper way to wire your subs together. I like the sealed box idea with the separate chambers. Your subs have a total combined capacity of 3000w rms, 1000 per sub and 500 per coil. You need a big biatch class D mono amp that makes as much power at 1 ohm mono as you can afford / find. Orion 2500D comes to mind. Now just beacuse the subs say they can handle that much power does not mean that you need to give them that much power, meaning a smaller amp can also be used as long as the gains are set properly. ------------- Top Secret, I can tell you but then my wife will kill me.
Posted By: stevdart
Date Posted: February 01, 2005 at 9:40 PM
gbody805 wrote:
I kinda know that if I run them in series the amp should split its output between each load,but I'm not sure how this works in parallel?
The use of multiple subs and multiple voice coils on the subs have made understanding "load" harder than need be. A load is the total of all the subs (speakers) that are sharing the same connection at the amp. So don't think of a coil as a load, or even an individual woofer from a set as a load....it's not a load until the amp has to respond to it. The individual subs will receive power depending on what impedance they are, and the power is split evenly among the coils of each. ------------- Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
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