w129 speakers

[masmas]

hi,I have a front bass speaker fault,so i thought i`d buy a new pair of after market ones,alpine or something similar,the size is not a problem but impedence is.All the ones i have looked at are 4 ohm,the orignals are 1,2 ohm.Will 4 ohm stress the amp too much?cheers Carl.

 

[masmas]

Come on guys someone must know if i can put 4 ohm door speakers in place of the 2 ohm ones,the ones fitted as standard look like they cost a tenner but the dealer wants £95 +vat each,i was ok with them till one started distorting.Any reccomendations,thanks in anticipation.carl

 

[MBK]

Hi Mate,

You can certainly upgrade your speakers, are you going to be using the original head unit or do you have an after market one (JVC, SONY, Alpine...)

K

 

[masmas]

cheers for getting back,the system i have is totally standard blaupunkt kingston cassette! i play my ipod thru it,all the speakers are standard,the bottom door speaker is now distorting on one side ,i have took it out and just want to replace either side,they look about 6.5 inch which is obtainable it`s just the impedence stamped on the back at 1,2 ohm which is definately not standard. cheers.

 

[MBK]

Got this from another site...

"the impedance of a speaker is its opposition to the flow of A.C. current. The lower the impedance, the higher the current flow (all else being equal). Increasing the impedance will decrease the current flow (all else being equal). You probably know that car audio speakers generally have lower impedance than home or commercial speakers. As you know, there is a limited amount of voltage available in an automobile (approximately 13.8 volts). This means that head units have only 13.8 volts to apply to the speaker leads. If we have only at 13.8 volts to drive into a speaker, there may not be sufficient volume output if the speaker has high impedance."

from this i understand that if you put in 4 ohm speakers into your system with your current headunit you may notice a slight volume output drop compared to the 2 ohm speakers.

but try these they should work fine.

 

[masmas]

A big thanks MBK for taking the time to explain all that i got most of it!sxe1750s on the shopping list this weekend.I never used it flat out anyway(too old) so i should be ok with a drop in volume.once again a thanks top man.Carl

 

[bolide]

Some of that description is nonsense. If you use speakers of a higher impedance you'll get less output (ie it'll be quieter) which probably won't be a problem. If the speaker has a tweeter linked to it via a crossover, and I expect it has, replacing it with a fundamentally different speaker of a different impedance may change the character of the sound. That's because a crossover (the bit that divides the signal into high frequencies for the tweeter and low frequencies for the mid speaker) is specific to a particular combination of speakers

You might be better off replacing both mids & tweeters with some new kit - a good car hifi shop will be able to help

Nick Froome

 

[gurpz]

I would reccommend these:

http://caraudiosecurity.com/shop/product/products_id/8493.html

A bit more expensive but are very good value for money and you will not be disapointed with sound quality especially the better bass response.

 

[masmas]

HI ,Well i had a couple of hours spare today,so i took the speaker round a couple of ice shops and none of the holes centre to the original it`s quite a bit bigger,so i`m in need of an adaptor now.cheers

 

[gurpz]

As your based in Nottingham give Car Audio Centre a visit. Im sure they will be able to advise you on an adaptor/spacer. They should stock the Pioneer TS-A170Ci components or equivilant too.

 

[prc]

Got this from another site...

"the impedance of a speaker is its opposition to the flow of A.C. current. The lower the impedance, the higher the current flow (all else being equal). Increasing the impedance will decrease the current flow (all else being equal). You probably know that car audio speakers generally have lower impedance than home or commercial speakers. As you know, there is a limited amount of voltage available in an automobile (approximately 13.8 volts). This means that head units have only 13.8 volts to apply to the speaker leads. If we have only at 13.8 volts to drive into a speaker, there may not be sufficient volume output if the speaker has high impedance."

from this i understand that if you put in 4 ohm speakers into your system with your current headunit you may notice a slight volume output drop compared to the 2 ohm speakers.

but try these they should work fine.

This is sort of true but need to factor in that most HU amps have a very limited amount of current they can output. If the resistance goes down too much, the amp won't be able to output the requested current and clip. With more current output the HU will run hotter and could eventually shut down. All this to say the higher resistance speakers will be friendlier to the HU's built in amp.
That said some speaker companys do make 2 ohm speakers. Infinity comes to mind.

Paulo