2 ohms or 4 ohms?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=30076
Printed Date: July 18, 2025 at 5:29 AM
Topic: 2 ohms or 4 ohms?
Posted By: liventhlife
Subject: 2 ohms or 4 ohms?
Date Posted: April 09, 2004 at 8:32 PM
I just bought a jeep cherokee and I'm working on putting a sound system in it. I'm going to go with 4 Tpye R 12s in the back. I'm going to purchase 2 Alpine MRD-M500 mono class D amps to push the 4 subs. But I don't know what model of Type R to get to match that amp specs. I can either go with the SWR-1241D (4 + 4 ohms) or the SWR-1221D (2 + 2 ohms) subs. Which model subs should I go with to match the amps? Also has anybody hooked a cherokee up and knows what it takes to get it pushin some mad bass. I want to hit in the 156 db range is that possible with this Alpine equipnment? The head unit is going to be a poineer 7000 high output. I haven't bought anything yet so I can still change things around.
Replies:
Posted By: 97neon
Date Posted: April 09, 2004 at 8:42 PM
don;t get the mrd amps man, there very weak on power, i have 5 different friend with the 500's and the 1000's, they just don;t put out he power, they have amazing SQ though, but get somehting that will put real power, like memphis mc1000d's, orion, the new rockfords, just to name a few
Posted By: liventhlife
Date Posted: April 09, 2004 at 8:48 PM
Okay so kill the mrd idea. But what about those subs are they still going to do the job I need to get done. Remember I want to be in the 156 db can the Rs handle putting that out with a rockin amp. Whats the price range on the memphis mc1000d to. Thanks
Posted By: DYohn
Date Posted: April 09, 2004 at 8:49 PM
Either sub impedence will work with this amp. I assume you are planning to connect two subs to each amp? You'll want to wire for 2-ohm total load no matter which type you get. After you deside, we can tell yo how to wire them. You want to hit 156db, eh? You compete at idBl? What class? ------------- Support the12volt.com
Posted By: Alpine Guy
Date Posted: April 09, 2004 at 8:51 PM
Go with a MRD-M1001, and 4 SWR-1241d it will be about $200 cheeper and you will get the same amount of power to the subs. If your going for a loud spl system that also sounds good during normal listening, i found that tuneing around 50hz is the best. They still sound musical, yet hit extreemly hard. I have worked with the techs at Alpine to figure this out. Be shure to separate each sub in its own chamber. ------------- 2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.
Posted By: liventhlife
Date Posted: April 09, 2004 at 9:00 PM
Ok scratch all of my ideas and tell me what would be a good hook up for a cherokee from someone who has played around with sound in a jeep before and knows what sounds good and doesn't.
Posted By: liventhlife
Date Posted: April 09, 2004 at 9:19 PM
What model rockford amp would make these subs pound? Why should I make sure they all have there on sealed box? Is Type R still the best sub to run in there?
Posted By: forbidden
Date Posted: April 09, 2004 at 9:21 PM
You are going to compete in a spl contest from what I gather, correct? If this is the case throw all the gear out the window and start with engineering the system to do this. What size alternator do you have, battery etc.?
-------------
Top Secret, I can tell you but then my wife will kill me.
Posted By: liventhlife
Date Posted: April 09, 2004 at 9:25 PM
Right I want to start competing but I'm just starting out and I don't know to much about what kind of gear to put in the back. The alternator and batt is going to be up graded too I just need help on what subs and amp to go with.
Posted By: liventhlife
Date Posted: April 09, 2004 at 9:35 PM
Okay so lets not go that far lets just make it a loud machine to drive around. I want my gutts to shake when it hits what should I do?
Posted By: Clean Install
Date Posted: April 09, 2004 at 10:21 PM
I really like the type Rs, put 3 of them in a mustang gt hatchback 92 and damn it just pounded
-------------
If we learn from each success and
each failure, then we can improve ourselves
Posted By: robbie2883
Date Posted: April 09, 2004 at 11:25 PM
Two JL Audio W6's or W7's and a big bad JL Audio 1000/1 class D mono amp 1.5 ohm stable amp. Hook it up in Parallel and there ya go.....a TON of bang for your buck. I have set the W7 subs up in a jeep grand cherokee and the roof was flexing about an inch and a half. ------------- if its jammed force it - if it breaks in the process it needed to be fixed anyway
Posted By: Clean Install
Date Posted: April 09, 2004 at 11:40 PM
thats a good choice, robbie2883  , ------------- If we learn from each success and
each failure, then we can improve ourselves
|