How to power two subs off of one amp! - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 09-03-2012, 03:23 PM   #1
Jeeper
 
Join Date: Jan 2012
Posts: 112
How to power two subs off of one amp!

Im planning on adding two subs in my jeep, but because of money I would like to do it one sub at a time

So if my final result will be two 300 watt RMS (2 ohm) subs, what would be the best way to power them off of one amp?

And how can I use this same amp to safely power just one of the subs before I get the second?

burton861 is offline   Quote Quick Reply
Old 09-03-2012, 03:31 PM   #2
Jeeper
 
massbass22's Avatar
 
Join Date: Aug 2012
Posts: 103
I would run the single sub at 2 ohms with a mono amp and when you get the second sub wire them together for 1 ohm. Assuming the amp OS one ohm stable of course. Or you could just run a two channel amp and just run one sub off one of the channels until you get the second sub.

massbass22 is offline   Quote Quick Reply
Old 09-03-2012, 03:31 PM   #3
Jeeper
 
massbass22's Avatar
 
Join Date: Aug 2012
Posts: 103
Is* not os
massbass22 is offline   Quote Quick Reply
Old 09-03-2012, 03:33 PM   #4
Jeeper
 
Join Date: Aug 2012
Location: Medicine Hat, AB
Posts: 91
hook up in parellel
MHjk is offline   Quote Quick Reply
Old 09-03-2012, 03:39 PM   #5
Jeeper
 
Join Date: Jan 2012
Posts: 112
The mono amp route sounds more dangerous- but if I went that way how powerful would it need to be to power both subs safely and efficiently?

And if i went the 2-channel amp route how powerful would the amp need to be?
burton861 is offline   Quote Quick Reply
Old 09-03-2012, 03:42 PM   #6
Jeeper
 
Bronek's Avatar
 
Join Date: Sep 2012
Location: Saskatoon, SK
Posts: 56
Send a message via MSN to Bronek
There is nothing dangerous about a mono amp. The only thing to note is the capacities and outputs of both amp and sub. If the subs are a SVC 2 ohm, then you can run them at either 1 ohm or 4 ohm, depending on what your amp is rated for and what the subs can handle. Giving us the specs (or at least model numbers) on amp and subs would allow me to tell you how to best configure your setup.
Bronek is offline   Quote Quick Reply
Old 09-03-2012, 03:44 PM   #7
Jeeper
 
massbass22's Avatar
 
Join Date: Aug 2012
Posts: 103
It's not dangerous at all if the amp is 1 ohm stable. It's very common set up infact. If you are looking at getting 300 rms subs than that's where you want to be around. I would think 200w to 250 w per channel at 2ohms would be fine. A 500rms mono would work if you wired in parallel
massbass22 is offline   Quote Quick Reply
Old 09-03-2012, 03:45 PM   #8
Jeeper
 
massbass22's Avatar
 
Join Date: Aug 2012
Posts: 103
Quote:
Originally Posted by Bronek
There is nothing dangerous about a mono amp. The only thing to note is the capacities and outputs of both amp and sub. If the subs are a SVC 2 ohm, then you can run them at either 1 ohm or 4 ohm, depending on what your amp is rated for and what the subs can handle. Giving us the specs (or at least model numbers) on amp and subs would allow me to tell you how to best configure your setup.
Agree!
massbass22 is offline   Quote Quick Reply
Old 09-03-2012, 04:02 PM   #9
Jeeper
 
Join Date: Jan 2012
Posts: 112
These are the subs I plan on getting.
Alpine Electronics of America, Inc.
and
Alpine Electronics of America, Inc.

They are both the same sub, 300 RMS, dual voice coil

I am going to put the second sub in the stock jk sub box

I need to know what type of amp and how big to get it to run both of these... and just one of them for about a month or so
burton861 is offline   Quote Quick Reply
Old 09-03-2012, 04:23 PM   #10
Newb
 
Join Date: Jul 2012
Location: NY
Posts: 9
i would buy a 500 watt mono amp that and hook up the one sub to 4 ohms. Most amps are not stable at 1 ohm. When you get the second sub wire it to 4 ohms and you will be at 2 ohms. When you have the one sub at 4 ohms most 500 watt mono amps are going to be between 250 and 300 watts at 4 ohms. I would use the alpine MRX-M55 it would work perfect on one or two of those subs.

I would not use the stock box for one and not the other. you want the subs to be in the exact same box or they are not going to sound right.
Ray finkle is offline   Quote Quick Reply
Old 09-03-2012, 04:26 PM   #11
Jeeper
 
massbass22's Avatar
 
Join Date: Aug 2012
Posts: 103
I don't think the stock enclosure would handle that much power too well. Too flimsy for that many watts.

massbass22 is offline   Quote Quick Reply
Reply

Tags
amp , amplifier , sub help , subwoofer

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 07:28 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC