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Can I use a 2 ohm impedance 6x9 speaker directly from my cars headunit?

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  • pdob Jul 31, 2008

    What about with an aftermarket sony headunit?



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Doubtful - the factory head unit isn't meant for 2-ohm operation and will stand a chance of damage.

Posted on Jul 31, 2008

  • Jeremy Dellow
    Jeremy Dellow Jul 31, 2008

    If you're going to run 2-ohm speakers, you need to make sure it's spelled out on the package of the head unit that it's 2-ohm stable. If it isn't explicity stated, assume it's not and don't use it. A better bet would be to run the speakers off a 2-ohm stable amplifier (those are common, whereas 2-ohm headunits are rare, if they exist at all - I've never seen one). That way you'll be able to use the speakers you have and with an amp, you'll drive them much more cleanly than you will off a head unit.

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I replaced the 2 ohm 6x9's in my buick with the monsoon amp, with 4 ohm 6x9's. After i put the speakers in, almost no sound came out. I've read that you can wire them in parallel from one...


If you did wire these in parallel to get the 2 ohm load, you will loose your balance. Also, you may have to bridge your amp.
To do this, go from the positive of the amp to both positives of both speakers. Then from the negative of the amp to both negatives of both speakers. If you have a 2 channel amp, you will have to bridge it. Note, make sure your amp is 2 ohm stable.

hope this helps

Aug 27, 2011 | Car Speakers & Subwoofers

1 Answer

How do i bring a pair of dual 4 ohm 15 inch type r's to 1 ohm


A speaker with dual 4 ohm can be wired in parallel (+ to + and - to -) to react like a 2 ohm impedance. Connect both speakers together in parallel (+ to + and - to -) for the 1 ohm impedance. I personally would not prefer nor recommand using a 1 ohm load on any amplifies.

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1 Answer

I need to know how many ohms this speaker should measure on my digital volt/ohm meter, i'm getting 2.1 and 2.4 ohms.


hi
You speaker is dual coil one. Each coil have an impedance of 4 ohms. When these coils are connected in parallel then the ohms will be 2 ohms and in serial it will be 8 ohms. slight variations will show in digital multimeter when you measure the ohms. use the lovest ohms range in you meter to measure the coil impedance.
ok

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1 Answer

I have a lanzar max pro 15'' subwoofer and i need to know how to wire it. It has four wire inputs on each side teo positive and two negative, is this just to change it from 4 to 8 ohm or something?


In part yes it is a flexibility for wiring your speakers to match the impedance of your amp. For example if your subs are 2 ohm dvc by wiring them in parallel you can drop the impedance down to 1 ohm per speaker and if you connect two 1 ohm then you get 1/2 an ohm load. Or you can put them in series and increase the impedance to 8 ohms which I wouldn't suggest you do. Here is a link to wiring speakers:

http://www.crutchfield.com/S-cgSECUmngLm/learn/learningcenter/car/subwoofers_wiring.html

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1 Answer

The radio is working but there is no sound coming from the speakers it was working I turned the car off and when I turned it back on no sound?


If you have high quality after market speakers with a lower impedance (2 ohm and 4 ohm) versus the factory speaker impediance (8 ohm 12 ohm and 16 ohm) your headunits sound out device is probably fried inside your head unit. that or all your speaker leads are fowling out at the same time which i would find that hard to believe. But the good new is, some of the newer head units have a low impediance fail safe, so you could have one speaker that is fowled out that is sending the head unit into protection mode which is muting the output until the fowled wires are cleared. Disconnect your speakers and turn the head unit up playing a cd or something, then connect each speaker one by one. You should have sound. hope this helps.

Aug 07, 2010 | Car Speakers & Subwoofers

1 Answer

I hooked up 2channel 500 watt amplifer and 1200 watt 300 rms subwoofer now the protection light comes on when i turn up volume


your speakers rating is too low for your amplifier. 300 watts RMS means the speaker can operate on an average of 300 Watts continuously. the 1200 watt rating is peak wattage input and meant for intermittent intervals only, a like a bass drum beat count. also , your speaker impedance must match your amplifier impedance or the speaker must be a higher impedance than the amplifier. Never lower than the amplifier's impedance output rating. If The amplifier is rated into an 8 ohm load, your speaker must be 8 ohms or higher. in other words you cannot use a 4 ohm speaker or you will damage the amplifier .

Mar 14, 2010 | Car Speakers & Subwoofers

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I would like to know what the best way is to cut out bass response in 4x6 and 6x9 speakers in a car w/o having to install a 4ch amp running in HPF mode. any suggestions?. i read about small inline...


You can indeed do this by putting a ceramic capacitor inline with the speaker wiring.
The circuit you have now goes Amp+ to Speaker+, Speaker- to Amp-
putting a capacitor inline means your circuit will go:
Amp+ to Capacitor, Capacitor to Speaker+, Speaker- to Amp-
Ceramic capacitors don't have a + or - side.

The next question is what value of capacitor do you want, and that answer depends on two things -- how much bass you want to cut off (the cutoff frequency) and the impedance of your car speakers (generally 4 ohm, but some are 8 ohm and some are 2 ohm)

Here's a spiffy chart that shows the relationship between cutoff frequency and capacitance. There's a lot of data there. If you get overwhelmed, here's a suggestion:
Assume you have 4ohm speakers, and you want to cut out everything that's going to a subwoofer (120Hz and below) -- you want a capacitor of about 330 uF (microfarad)

You can get those at any radio shack, or order online from someplace like Mouser.com

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1 Answer

Is the Jensen car speaker model cv 650 a 4 OHM spreaker? I'm trying to match a 4 OHM subwoofer.


It should be a 4 ohm speaker as this is the standard impedence for car audio speakers. Jensen does not produce car audio speakers with any other impedences.

Jun 21, 2009 | Car Speakers & Subwoofers

1 Answer

SPEAKER CONNECTIONS


You can go to checkers or auto zone and they can assist you with purchasing a tool that is designed specifically for pulling the fasteners that hold the door panels snug to the door frame itself-or you can use a good sized flathead screwdriver to do it and if any get damaged you can get new ones at the same stores to replace them-as far as the 6x9 speakers go you can most likelyjust plug them in parallel wired to the amp or at the speakers but it will drop your ohms a little(resistance) assuming that the speakers that are already in the vehicle are all 4 ohm speakers wiring the 6x9s parallel with a set of them would give you a 2 ohm load per channell at the amp-most amps today are stable at 2 ohms so it should be fine

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1 Answer

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