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Speaker ohm - Ohm Car Audio & Video

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Do you bridge a 850.4 four channel amp when it is 2 ohm stable and ur subs are wired up as series/ parallel and there 2 ohm dual voice coil speakers


If you wire 2 ohm dvc speaker parallel that would give you a 1 ohm load. If your amp is only 2 ohm stable that would not work. You would have to wire the speaker in series giving you a 4 ohm load. Then you can bridge the 4 channels into 2 with each speaker running at 4 ohms.
If you want to run a 2 ohm load use all 4 channels on amp and speakers. No need to bridge.
For 2 ohm DVC:
Parallel = connect both + and - together. = 1 ohm
Series = connect + from 1 channel to - from the other channel. = 4 ohm.

Jul 06, 2014 | Car Audio & Video

2 Answers

4 ohm and 8 ohm speakers


You can plug in higher ohm speakers , the higher the ohm the higher the resistance is, it is a danger when you plug lower ohm speakers into a higer ohm Amp , at a high volume that will cause them to blow , the center speaker would be fine to use a higer ohm speaker , your best choice is to buy a Active Subwoofer, which means the sub has it's own power supply , and u can blast the thing as much as u like , thn u can turn the bass down on all the other speaker's so u can play it louder , and have the sub turned up has high as u like , this is the best way to get great sound with high volume , buy a Active sub woofer , any active subwoofer is ok , a active sub woofer has its own volume and inputs on the speaker ,

Dec 09, 2007 | Audio Players & Recorders

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Will the E-715 work at 4 ohms


Hello,
They will work at 4 ohm, but you won't get near as much volume out of them as you would if you used an 8 ohm amp. The E-715 speakers are rated for 8ohms. You could damage your amp running speakers that are not matched to the same ohm rating, however it is safer to run a low ohm amp to higher ohm speakers then it is to go from low ohm speakers to a high ohm amp. Your speakers will perform how they were intended if you match the ohm rating, so try to do that at if at all possible.
Chris

Jul 16, 2011 | Cerwin Vega Cerwin-Vega E-715 Floor...

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I have a pioneergm-d8500m amp and it stopped working and the green led just flashes.. i bought a new amp to replace it and it just does the same thing.. what is going on to cause this


crossed speaker wires or loose strands creating a short circuit, improper speaker ohmage or a blown speaker.

verify that you dont have any positive strands coming in contact with negative strands/terminals, the amp case, the speaker frame, or any metal part of the car chassis.

verify that you only have a 2 ohm load connected to the amp. most car speakers are 4 ohm (siginfied by the greek letter "omega" on the back of the spoeaker magnet, or in the speaker specifications), but some are 2 ohm and/or 2 ohm x2 voice coils per speaker. 2x2 ohm coils/speakers would produce a 1 ohm load, which would cause the amp to overload, and go into "protect" mode. to achieve a safe load, you need to use 1x4 ohm speaker, 2x4 ohm speakers or a dual voice coil speaker with 4 ohms per coil x2 voice coils, wired in parallel.

you can also achieve 2 ohms with 2 speakers with 2x2 ohm voice coils apiece (that is, 2 speakers, each with 2 ohm voice coils apiece, 2 speakers with 4 voice coils altogether of 2 ohms apiece) by wiring the two coils per speaker in SERIES, and then wiring the two speakers circuits in PARALLEL. wiring the coils in series means connecting the positive lead of one coil to the amp positive, then connecting the same coils negative to the positive of the second coil, and finally connecting the negative from the second coil back to the amp negative terminal. if you wire both dual voice coil speakers in series, and then connect both series circuits back to the amps positive/engative, than you have the coils in series, and the speakers in parallel- achieving an overall 2 ohm load from 4 total voice coils between 2 speakers.

if you need a better explaination, comment back with your exact speaker combination (brand and model # of speakers + number of speakers), and i will provide a more specific description with your exact speaker set-up in mind.

Mar 27, 2011 | Pioneer Gm-d8500m Car Amp

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I have the Alpine MRP-M1000 amp. I want to use 2 subs with this amp. Which Alpine subs would work best with this amp?


this amp is rated at 600w at 4 ohms and 1000w at 2 ohm so as long as you calculate your speakers to match the ohm specs of the amp you can hook up

parallel = pos to pos and neg to neg of the 2 speakres
2 - 8 ohm speakers in parallel = 4 omhs
2 - 4 ohm speakers in parallel = 2 ohms

series = pos to neg of the 2 speakers
2 - 1 ohm speakers in series = 2 ohms
2 - 2 ohm speakers in series = 4 ohms

Feb 22, 2011 | Alpine MRP-M1000 Car Audio Amplifier

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How do i install my L5 solo barics to a 2 channel amp if there is only one connection on the enclosure next to the vent? If I bridge the amp to 1x1000W will the power distribute evenly between both...


Option 1 (parallel) = 2 ohm load
Speakers wired in parallel
Recommended Amplifier: Stable at 2 or 1 ohm mono 2_4ohm_svc_2ohm.gif
Option 2 (series) = 8 ohm load
Speakers wired in series
Recommended Amplifier: Stable at 4, 2, or 1 ohm mono 2_4ohm_svc_8ohm.gif
Option 1 (parallel/parallel) = 1 ohm load
Voice coils wired in parallel, speakers wired in parallel
Recommended Amplifier: Stable at 1 ohm mono 2_4ohm_dvc_1ohm.gif
Option 2 (series/parallel) = 4 ohm load
Voice coils wired in series, speakers wired in parallel
Recommended Amplifier: Stable at 4, 2, or 1 ohm mono 2_4ohm_dvc_4ohm.gif Option 1 (parallel/parallel) = 0.5 ohm load
Voice coils wired in parallel, speakers wired in parallel
Recommended Amplifier: Stable at 1/2 ohm mono 2_2ohm_dvc_05ohm.gif
Option 2 (series/parallel) = 2 ohm load
Voice coils wired in series, speakers wired in parallel
Recommended Amplifier: Stable at 2 or 1 ohm mono 2_2ohm_dvc_2ohm.gif
Option 3 (series) = 8 ohm load
All voice coils wired in series
Recommended Amplifier: Stable at 4, 2, or 1 ohm mono 2_2ohm_dvc_8ohm.gif
Option 1 (parallel) = 2 ohm load
Speakers wired in parallel
Recommended Amplifier: Stable at 2 or 1 ohm mono 2_4ohm_svc_2ohm.gif
Option 2 (series) = 8 ohm load
Speakers wired in series
Recommended Amplifier: Stable at 4, 2, or 1 ohm mono 2_4ohm_svc_8ohm.gif
Option 1 (parallel) = 2 ohm load
Speakers wired in parallel
Recommended Amplifier: Stable at 2 or 1 ohm mono 2_4ohm_svc_2ohm.gif
Option 2 (series) = 8 ohm load
Speakers wired in series
Recommended Amplifier: Stable at 4, 2, or 1 ohm mono 2_4ohm_svc_8ohm.gif

Apr 09, 2010 | Kicker Solo-Baric L5 Car Subwoofer

2 Answers

6 ohn wharfedale speakers on an 8 ohm TEAC amp (both old) - will that work


Yes. Most if not all speakers have impedances which vary with frequency and are rated at a nominal or average impedance. So a manufacturer who rates their speakers at 6 ohms may be more honest or chooses to quote it at a specific frequency. So a nominal 8 ohm speaker may actually measure 4 ohms at 100Hz and 12 ohms at 500Hz but averages somewhere nearer 8 ohms. It is normal for most speaker manufacturers to simplify their ratings so speakers which average at say 6 ohms would be categorised as 8 ohm, and 4.9 ohm averaged speakers as 4 ohms.

As a point of interest - some amplifiers are specified as providing their maximum power at impedances of 6 ohms, and there fore some speaker makers (including those made by same manufacurer as amplifier) will rate their speakers at 6 ohms so they appear more compatible.

Mar 05, 2010 | Audio Players & Recorders

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Can I install 4 6 ohms speakers on an 8 ohms a/v receiver? receiver Sony STD HD 800 speaker system: Jamo S413 HC S5 Home theatre system,


Best Answer - Chosen by Voters An ohm is a unit of electrical resistance. You can think of it as your speaker will impede or pull 8 ohms from the amplifier that is powering it.

8 ohms is less resistance than 4ohms. So a 4 ohm speaker would require more juice than your 8 ohm.

If this is the only speaker, then that's all the resistance you have to worry about handling. If you had two of these speakers wired in parallel, then the total impedence would be up to be 4 ohms, because each speaker actually reduces the resistance in the circuit...so 8 ohms + 8 ohms = 4 ohms.

You use this information to make sure your amplifier is powerful enough for the speakers. If the speakers have too much resistance, they'll fry your amp.

Here's a good sentence to help explain, but I recommend reading the article I linked in sources...

"An amplifier designed to put out 100 watts into 8 ohms will put out 200 watts into 4 ohms. Two 8 ohms speakers wired in parallel (4 ohms total) would cause the amplifer to produce 200 watts." Source(s): http://www.marktaw.com/recording/Electro…

Nov 26, 2009 | Sony STR-DH800

1 Answer

IF THE WOOFERS HAVE 2 VOC.COIL EACH HOW DO YOU CONNECT WITH THE AMP THAT HAS ONE CHANNEL WITH TWO + AND TWO -.


it depends on the load you want to present to the amp. un 12, 2009 - If woofers are 2 coil, then you definately need to know the impedance of the coils (are they dual 2 ohm, or dual 4 ohm?). For dual 4 ohm speakers you will only be able to acheive a summed load of 1 or 4 ohms. If your amp can handle 1 ohm, then connect this way: 1 ohm: Connect both the positives and the negatives together on each speaker. This puts them in paralell which will result in a 2 ohm load per speaker. After you connect the two 2 ohm loads to the amp, it will see 1 ohm as it's load. If your amp can handle this, this is usually the lowest configuration capable by consumer stuff, (if you are not doing competition or some crazy thing), and few amps are rated for 1 ohm so it's not really recommended and may heat up or blow your amp. 4 ohm: Connect one negative to one positive terminal on one speaker. Drive the other open terminals with the amp. This places coils in series and results in an 8 ohm load per speaker. After connecting both speakers to the amp, the amp will see a 4 ohm load. In both cases, the rates power of the amp (at that load) will be divided equally between the speakers. Jun 12, 2009 - For dual 2 ohm speakers, the only loads you can achieve are .5 ohm (1/2 ohm), and 2 ohm. The connections are the same as above, and this results in: ...If coils for each speaker are wired in paralell, the results are 1 ohm per speaker, and after connection, the amp sees 1/2 an ohm. (.5 ohm) ...If coils are wired in series, the result is 4 ohms per speaker, and the amp will see 2 ohms after both are connected.

Jun 12, 2009 | Volfenhag ZX-4712 Car Subwoofer

1 Answer

4 ohm speakers for 8 ohm impedence on receiver (HT)


ya cant run them 4 ohm on 8 ohm sterio run super hot then fail sooner gota get sum nice 8 ohm ones ok flouece off ebay is relly good cheap 8 ohm

Jan 24, 2008 | Ohm L Speaker

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