quick ohm question
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=26098
Printed Date: December 21, 2025 at 1:27 AM
Topic: quick ohm question
Posted By: shadowrelic
Subject: quick ohm question
Date Posted: February 08, 2004 at 11:04 PM
i just read the ohm laws and stuff and got a question. if i wire a bunch of speakers together but keep the same ohm value the stereo is ment to output will it output the same watts to everyspeaker? i have a 50 watt stereo and 3 speakers hucked up to each channel. (after reading the law i found i need to rewire badly) but i was wondering... does the stereo have to work harder to send to all the speakers or is it the number of ohms that desides how much the stereo works??? if i hooked up about 10 speakers to each channels but kept the ohm to what the stereo wants (stereo is designed for 6 ohms) then would each speaker be really quiet because there is a bunch or would they all sound normal? ---i hope i made myself clear enough :D ------------- 2 subs
1 amp
0 knowledge of how to hook them up to my car.
Replies:
Posted By: Ketel22
Date Posted: February 08, 2004 at 11:33 PM
the ohm load does determine how much output is used. if you hooked up ten speakers to a 50wrms channel each speaker would get approx. 5 wrms. if all of the speakers have the same ohm loads at the vc they should divide the power evenly throughout them.
------------- Quad L Handyman services
Posted By: BangBang
Date Posted: February 09, 2004 at 3:30 AM
i have no clue wut u guys are talking about? wut do u mean ohm and wat is rms? well let say i have a 10" sub woofer of 1100 watt max peak wat is its ohm? and rms? that info should be labled on the box? and when consider about speakers. i should consider its rms or its watt? likei would be like i have a 1100 watt sub or i should consider it by its RMS? kinda understanding wut i'm trying to say ? thanx
Posted By: HumbleI
Date Posted: February 09, 2004 at 8:23 AM
consider it by its rms...ohm is an electrical law used in mobile electronics, it helps to determine how you should hook your speakers and amplifiers up with the ohms matched to maximize the output of your amp... its basically a more effecient way ...50wrms is 50 watts rms... so if the peak was 60 watts and the rms value was 50 thats the value you would use.... 60 watts is themax power that speaker can take. hope this helps a lil .. i still have just a rudimentary knowledge onthis stuff.... but im sure im right about this....
Posted By: HumbleI
Date Posted: February 09, 2004 at 8:46 AM
and I also forgot to add about ohm... its the resitance value...
Posted By: DYohn
Date Posted: February 09, 2004 at 10:04 AM
Wow. All I can say is you guys need the help of professional installers. If you don't understand basic electricity, then I strongly suggest you have pros install your equipment until you get some education. This is not a slam. please understand, as we all started out sometime. But it is dangerous and can be very expensive to just "dive in" if you don't understand what you're doing. Go to the "Basics" section of this web site and read. Get some of the beginners guides suggested there and read. Go take some basic electrricity classes in your community (many high schools, community colleges and even local adult education centers have these classes.) Seriously, if you don't understand the basics, don't stick your fingers in there! Electricity can bite... and equipment will fail if used improperly.
Posted By: spl_enterprise
Date Posted: February 09, 2004 at 4:26 PM
i agree with DYohn. If you dont know basic principles like ohm's law or rms power you need to learn bad. as for wiring up a lot of speakers off you head unit, be careful what you are doing, many decks dont like a whole load of speakers off one channel. if you are looking to wire up a whole bunch of speakers got yourself some more small amps, and a crossover. your stereo will thank you.
------------- Pete - SPL Enterprise Inc.
Posted By: shadowrelic
Date Posted: February 09, 2004 at 7:13 PM
ok i got my question answered, thank you ketel22 :D for everyone else: ok i know the basics on wire installing this was just a random thought that poped into my head, its not very easy to test either because i dont own enouph speakers to find out if they start to get quiter. i know the ohms law and i know that ohms is resistance, and no im not going to blow myself up or kill myself from pluging more then one speaker into an output..... stereos are made for that. ------------- 2 subs
1 amp
0 knowledge of how to hook them up to my car.
Posted By: mobiletoys2002
Date Posted: February 09, 2004 at 7:39 PM
STEREOS ARE NOT MADE FOR THAT!
stereos(head units) are not made to go below 4 ohms per channel there is no way you can add 2 speakers to 1 channel to a car stereo unless they were 8 ohm speakers and that is rare if any available other than subs.
Plain and simple answer is this--- A car stereo is made to handle a 4 ohm load on each channel (1 normal full range car speaker)If more are added the amp would overheat and try and push the load and fail(say good bye to that radio)  hope that clarified a bit.
And anyways even if they could handle 10 speakers the sound quality would suck!
Posted By: shadowrelic
Date Posted: February 09, 2004 at 11:17 PM
wire 2 4ohm speakers parrellel to 2 more 4ohm speakers tell me the impendance :D (hint: i just proved you wrong) https://www.bcae1.com/spkrmlti.htm <--- read that ------------- 2 subs
1 amp
0 knowledge of how to hook them up to my car.
Posted By: BangBang
Date Posted: February 09, 2004 at 11:44 PM
shadowrelic wrote:
wire 2 4ohm speakers parrellel to 2 more 4ohm speakers tell me the impendance :D (hint: i just proved you wrong) https://www.bcae1.com/spkrmlti.htm <--- read that
-------------
Posted By: BangBang
Date Posted: February 09, 2004 at 11:46 PM
shadowrelic wrote:
wire 2 4ohm speakers parrellel to 2 more 4ohm speakers tell me the impendance :D (hint: i just proved you wrong) https://www.bcae1.com/spkrmlti.htm <--- read that
HOLY SMOLe-ee that web site really helps me understand connecting stuff better omg how did u know that website damn ur good thank you so much man for the information mwa love you take care i still have problems with my 1000 watt amp though hahahha plz help me?
Posted By: mobiletoys2002
Date Posted: February 09, 2004 at 11:56 PM
OH PLEASE WHAT YOU THINK U KNOW WHAT YOU ARE TALKING ABOUT, YOU KNOW NOTHING MAN!!!iM NOT WASTING MY TIME ON YOU .i WILL LET SOMEONE ELSE DO IT HAVE A NICE NIGHT THE IMPEDANCE CAN ONLY DROP MY FRIEND IT WILL NEVER GO UP IN THSI SITUATION!
Posted By: mobiletoys2002
Date Posted: February 09, 2004 at 11:58 PM
and as you rais eth eimpedance volume will lower
keep learming and reading before you think u know it all!!
Posted By: mobiletoys2002
Date Posted: February 10, 2004 at 12:00 AM
and as the speakers are split the volume will be so low you wont even benefit from it unless you add an amp>
Posted By: mobiletoys2002
Date Posted: February 10, 2004 at 12:07 AM
you are talking about a series connection and yes the resistance goes up> true it does add but you will never have enough power to do it and you said 10 speakers my friend inpossible not 4 like u are saying now. Get your story straight and dont question me again or i may make u feel real stupid,like your first post sounded !
Posted By: shadowrelic
Date Posted: February 10, 2004 at 12:08 AM
i realise that the volume is lowered, i was just saying that you can connect multiple speakers without frying a stereo. bangbang: i know that site is awsome :D i found it on google, go to the main page there is like 150 totorials about car audio!!!! combined with this site.... no more audio trouble :D ------------- 2 subs
1 amp
0 knowledge of how to hook them up to my car.
Posted By: mobiletoys2002
Date Posted: February 10, 2004 at 12:16 AM
good u learned something im glad you learned that resitance is verry versatile. It can go up and down depending on wiring configuration but you first said 10 speakers and this conversation is useless becaus ewhat you want to do is pointless!!!! And you did not teach me something i did not alreay know!!If you want to learn ask dont act like u can test me i can teach you a lot as a lot of others here. Be nice and dont be a know it all (because u read something somewhere)and everyone will learn ,have a nice night!
Posted By: shadowrelic
Date Posted: February 10, 2004 at 12:28 AM
lol mobile toys u act like i insulted you or something :D no hard feeling ok? you helped get my question answered and thats all i needed. o yeah and the 10 speaker thing was just an example... i have 6 speakers in my room and i was wondering if it really maddered if i hooked them up 3 per channel.... now i have my answer :D all my stuff is diferent ohms, trying to get the recomended ohms on a crappy stereo is kind of hard (the damn thing wants me to get it up to 6 ohms.... grrr) any ideas on how to hook a 8ohm, a 6 ohm, and a 4 ohm up to equal 6 ohms? i used the basic install methods and couldnt figure it out, but combining parallel and series gets a little confuzing to a beginer :D (WAY to long of a guide....im sure it worth it though ) thanks for all the help guys! ------------- 2 subs
1 amp
0 knowledge of how to hook them up to my car.
Posted By: Clean Install
Date Posted: February 10, 2004 at 1:15 AM
shadowrelicany ideas on how to hook a 8ohm, a 6 ohm, and a 4 ohm up to equal 6 ohms? i used the basic install methods and couldnt figure it out, but combining parallel and series gets a little confuzing to a beginer :D (WAY to long of a guide....im sure it worth it though ) thanks for all the help guys! [/QUOTE wrote:
If you wired them in parrell you would get a 1.85ohm load (parrell will always be lower than the lowest amount of resistance) If you wired them in series you would get a 18 ohm load ( the sum of the resistance)
------------- If we learn from each success and
each failure, then w
If you wired them in parrell you would get a 1.85ohm load (parrell will always be lower than the lowest amount of resistance) If you wired them in series you would get a 18 ohm load ( the sum of the resistance) ------------- If we learn from each success and
each failure, then we can improve ourselves
Posted By: BangBang
Date Posted: February 10, 2004 at 3:19 AM
hey there guys, i was reading wut u guys posted back and forth? its getting pretty hot up in here. anyways i still dotn know wut u guys are talking about ^_^ maybe i should pay u to install my amp for me? all i know is that i wen i do it i , plug the + with the - and i will have power!!! lol... doing that while my hands are wet! lolz hehehe thanx for the help i might need some further godly information from u guys again. thanx for the intense 411
Posted By: shadowrelic
Date Posted: February 10, 2004 at 8:00 AM
bang bang i wasnt very far away from you a few days ago... keep reading about the stuff you dont understand and you will eventually figure it out. basicly just make sure when you handle the 8 guage power wire not to touch any copper :D (plug everything into the amp first then as a last step turn the power on :D ) and about the ohms question in my last post: thanks for that info clean install but i was really looking at how to wire them so that my stereo would see 6 ohms (it would include a combination of parellel and series wiring). because right now i have everything plugged in so that my stereo sees a 1.85 ohm load and it wants to see 6 ohms. and i dont want to wire them all in series because 18 is way over 6, and i need the most out of my stereo as a I can get. bang bang we'll have to talk on aol or something :D ------------- 2 subs
1 amp
0 knowledge of how to hook them up to my car.
Posted By: BangBang
Date Posted: February 10, 2004 at 10:37 PM
hey shadworelic yeah i've encountered some problems while PLUGGING and unplugging the 12+V wire to the amp right abvoe my trunk i think its cover. it would touch it wen i'm moving it around and cause an electrical shock and my amp got burnt. not the amp it self but , right were the red wire (+) touches the screw in the amp, like right there the plastic around it melted. i smelt it and stop and opened the trunk it was melted, it shown'd a burnt mark any ways is it becuz the wires were probably touching? or was i turning the volume to loud and it got hot ? but yeah i'm encountering problems left to right oh yeah i'm also looking for under body neon lights let me know if u know werhe i can get it cheap I"m also going to need some help installing two amps to a pair of 6x9'z. i'll tell umore about if u know how to do it or u can help me. thanx alot
Posted By: shadowrelic
Date Posted: February 10, 2004 at 11:41 PM
ok whenever you mess with that power wire make sure you have it unplugged from the battery because if you touch it to the wrong things (like the CAR) then it will go full power out of the battery and into whatever you touch it too.... lol thats really dangerous... what wire was it touching?? if it was touching the ground then you probubly have a dead battery right now too.... lol make sure the power wire doesnt touch any medal exept what the amp needs it to... i mean, its hooked up to a car battery for christs sake! for the lights, ive heard that you can get them on ebay for like 20 bucks (where did you think we were gonna recomend?!?! lol! ), i havnt looked very hard yet but i was thinking about getting some also.... ------------- 2 subs
1 amp
0 knowledge of how to hook them up to my car.
Posted By: thapimpfromchi
Date Posted: February 10, 2004 at 11:55 PM
Hey, to whoever it was that started this thread (i just read 3 pages, i forgot already), I think, you should just take, whichever speakers sound the best, use them alone on the radio, and be happy. If u wanna use them all, go get urself a nice 6.1 channel surround sound head unit. you can plug all them puppies on there, and play it as loud as you want. i think that would be your safest bet. And, if u want it loud, get something with 100 or more watts per channel! good luck. lol
------------- 1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
Posted By: thapimpfromchi
Date Posted: February 11, 2004 at 12:04 AM
ok, i think it was shadow that started this, right? anyways man, i fidgeted with the calculator we have on this lovely site, and figured this out for you. (assuming you dont wanna go get a new receiver for ur room) You can run the 6 and the 8 ohm speaker in parallel, then run those in series with the 4 ohm speaker. that would give you approximately a 7.4 ohm load. I dont like mixing and matchin stuff, but if u wanna do it, i guess those would be your 2 choices. and if it wasnt you who asked, to whoever it was, those are your choices. :)
------------- 1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
Posted By: shadowrelic
Date Posted: February 11, 2004 at 7:34 AM
lol thanks thapimpfromchi, it was my starting post... but now i unplugged my sub from my stereo (yes i had a sub hooked up to all the frequencys... didnt make much sound ... im dumb ) but yeah, that was the 8 ohm "speaker" that i was talking about when i started this topic... so now i have a 4 and a 6, i cant really wire them parallel so i guess ill live with 10 ohms (4 over what my HORABLE stereo can handle ) but yeah, im concentrating on my car at the moment so if i make that thing look good i should be happy :D ------------- 2 subs
1 amp
0 knowledge of how to hook them up to my car.
Posted By: BangBang
Date Posted: February 11, 2004 at 10:29 AM
yeah i c how u hooking it up wats the difference between a regular speaker and a 2 dual voice coil one?
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