Wiring for 8 ohm speaker and 4 ohm sub
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=80634
Printed Date: April 28, 2024 at 6:42 AM
Topic: Wiring for 8 ohm speaker and 4 ohm sub
Posted By: lolzitsmtss
Subject: Wiring for 8 ohm speaker and 4 ohm sub
Date Posted: July 23, 2006 at 8:15 AM
Hey guys...
Was wondering...how do i wire 2 10" PA speakers which are 8ohms each, and a (1) 12inch sub that is 4ohm? All connecting to the same amp.. The amp im thinking of getting is a 2/3/4 amp. Should i get a 4 channel? 2 channel? and how should i wire it?
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I guess that guy has subs.
Replies:
Posted By: DYohn
Date Posted: July 23, 2006 at 9:26 AM
I recommend you don't use a combination like this. ------------- Support the12volt.com
Posted By: lolzitsmtss
Date Posted: July 23, 2006 at 4:28 PM
what do you recommend?2 amps?
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I guess that guy has subs.
Posted By: DYohn
Date Posted: July 23, 2006 at 4:40 PM
I recommend two different vehicles. Use the 10's or the 12, but not both together. Besides the fact that you will create SPL imbalances and probable cancellations, using speakers with mixed impedance loads will also mean they will not utilize the same power (the 4-ohm speaker will always use twice the power as the 8-ohm speakers. I say it is a bad plan. ------------- Support the12volt.com
Posted By: Velocity Motors
Date Posted: July 23, 2006 at 5:37 PM
What are and who makes PA Speakers ?? Are you referring to a 10" subwoofer or are they full range speakers ? Just curious because you referred to the 10" as speakers and the 12" as a subwoofer .
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: lolzitsmtss
Date Posted: July 23, 2006 at 5:46 PM
Posted By: lolzitsmtss
Date Posted: July 23, 2006 at 5:50 PM
as for you Dyohn... my posting https://www.the12volt.com/installbay/forum_posts.asp?tid=80066&PN=5 Is what i want to do. So if you can help me out or guide me to another direction I would greatly appreciate it. I respect and will highly take ur info into consideration. If not, do exactly what you tell me ------------- I guess that guy has subs.
Posted By: DYohn
Date Posted: July 23, 2006 at 7:19 PM
Uh, OK, being accurate to start with is a good idea. "Speaker" means every speaker, by the way, that's what they all are called. Why do you think you want to use Selinium 10" pro sound woofers in your car? I can't recommend using those in a car. You do realize they require 1.25-1.5 cuft enclosures, and if they are for mid-bass they should be in the front of the vehicle in stereo? Where do you plan to mount them? Use your 12" subwoofer and if you think you need a three-way main set, then get a 3-way main set. Drive your subwoofer with a subwoofer amplifier. ------------- Support the12volt.com
Posted By: lolzitsmtss
Date Posted: July 23, 2006 at 7:46 PM
I want them so when i lift up my hatchback ( i have a 92 jeep cherokee) i can hear it. Its mostly for tailgating events..Street team events and more for outside listening then inside listening. The whole idea of this whole project is to get ppl who are at about 20-25 feet away from my car to hear it. I'm basically just looking for about 400-500watts of music. I was looking around and i see some 6x9's that are rated at 150rms. If i cant get 2-3 of those, wouldnt that be just as good as getting a "pro speaker"? ------------- I guess that guy has subs.
Posted By: DYohn
Date Posted: July 23, 2006 at 8:05 PM
OK now I understand. Again, please be clear up front if you want good responses! :) Sure the Seliniums would be great for a party PA setup. That's what they're for. Build a couple of cabinets in the 1.5 cuft range, add a horn tweeter and 2-way crossover, and set up a full-range stereo amp dedicated to them that you can switch on when you need it. I sure wouldn't want to have to carry them around all the time (talk about gas mileage dropping for nothing!) but to load up for parties it'd be a good idea. If you really want to build them yourself, go for it. If you want to buy something premade (and you don't want to spend a ton of money) I suggest a set of something like this. ------------- Support the12volt.com
Posted By: lolzitsmtss
Date Posted: July 23, 2006 at 8:39 PM
judging by the site and that guys post. i dont feel to confident about buying that model. Do you own one of those? any other sets like that you have in mind.... For 160 i dont mind geting it pre-made especially when there is 400watts all i would need is 1. ------------- I guess that guy has subs.
Posted By: lolzitsmtss
Date Posted: July 23, 2006 at 9:14 PM
For example should i just two pairs of these. https://www.circuitcity.com/ssm/Eclipse-6-x-9-4-Way-Coaxial-Speakers-SE8495-/sem/rpsm/oid/146004/rpem/ccd/productDetail.do If i buy the second pair i get 50% so it would be about 240 for all 4. That would be about 300watts. I would then make the box and put one of these at each corner of the box and then ill put the sub right in the middle. Or I can just buy that already premade ones and get a box for the sub and make it 1peavy on the left and 1 peavy on the right and the sub in the middle. But how much more power would the peavy speakers need then the eclipses?.. What would sound better if i was standin outside the car? inside the car? Any difference at all? Sorry im a newbie just trying to pick your brain. thanx for all your help man. ------------- I guess that guy has subs.
Posted By: DYohn
Date Posted: July 23, 2006 at 9:44 PM
Man you are talking apples and oranges here. So what do you want: normal speakers for your vehicle, or external party speakers? You can't easily get both. Those 6X9's are designed for use as normal car audio mains. Could you crank them up and "hear it" outside the vehicle? Sure, just like any other speakers. Those Peavy PA speakers (and others like them) are NOT for use inside your vehicle as your normal everyday stereo mains. They are something you could carry to your party and power them from a car stereo amp. They are designed for professional sound reinforcement, just like those Selenium woofers you linked to. Yes, the Peavy speakers sound pretty good, especially for the money. There are better choices if you are interested in SQ, but those would suffice for a "tailgate party" like you describe. Sweetwater is a reputable professional audio supplier. For chrissakes don't obsess about "power" that means next to nothing. First decide what it is you WANT. ------------- Support the12volt.com
Posted By: lolzitsmtss
Date Posted: July 23, 2006 at 9:52 PM
Okay so im going to go with the eclipses. I want something i can add to my existing interiors to give me some more sound and i want something that if i crank them up that i can hear them outside my vehicle.. so yeah im going to go with those and just get a type x and slap it right in the middle of the box. Run them all @ 4 ohms. Get two amps so i can turn on and off the subs and/or the speakers. thanx ------------- I guess that guy has subs.
Posted By: coppellstereo
Date Posted: July 23, 2006 at 10:29 PM
Remember this will drain your battery in a hurry!
The horn tweeter is a good idea since you want to throw the sound 20 - 25 feet.
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