2 or 4 or even 8 ohm?
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2 or 4 or even 8 ohm?
Well,, after trying to add a 6 disc CD-player and failed,, I had to do something to my car to make her (and I ) to fell better.
Since the rear side panels was off, YES ITS A ROADSTER I felt I at least had to change those rear speakers into something with a bigger coil, better membran.
So it ended up with a set of JBL 4".
Question,, the new speakers are stamped 2 ohm while the original show 4.
Would I have gained a better result if they was 8 insted of original 4,, or whats the secret about those values,, PLEASE tell me, the salesman promised that 2 was better than 4,, am I fooled?
Best R Olle B
Since the rear side panels was off, YES ITS A ROADSTER I felt I at least had to change those rear speakers into something with a bigger coil, better membran.
So it ended up with a set of JBL 4".
Question,, the new speakers are stamped 2 ohm while the original show 4.
Would I have gained a better result if they was 8 insted of original 4,, or whats the secret about those values,, PLEASE tell me, the salesman promised that 2 was better than 4,, am I fooled?
Best R Olle B
Junior Member
Joined: Mar 2000
Posts: 4,404
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2 ohm will make your amp work harder
as the lower resistance requires more power...that being said though there should be a gain in sound output...but thats all relative to the amp and what it can push out before distorting/clip the signal
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Basic electronics...
the lower the impedance, the more power that can be delivered, all else being equal (the applicable part of Ohm's law is P=E^2/R, for most car systems, since they are voltage and not current limited).
As long as your head unit/amp can handle 2 ohm speakers, they will be louder than 4 ohm ones.
Having said that, you presumably have the "Bose" system. That system uses cheap speakers and the head unit is set up to equalize for their deficiencies. If you put better speakers in, you end up screwing up the frequency response of the system (it will be overcompensated).
To maintain the stock TT head unit, and upgrade the rest, you need to recode it as "non-Bose," and also replace both the stock amplifier and speakers.
As long as your head unit/amp can handle 2 ohm speakers, they will be louder than 4 ohm ones.
Having said that, you presumably have the "Bose" system. That system uses cheap speakers and the head unit is set up to equalize for their deficiencies. If you put better speakers in, you end up screwing up the frequency response of the system (it will be overcompensated).
To maintain the stock TT head unit, and upgrade the rest, you need to recode it as "non-Bose," and also replace both the stock amplifier and speakers.
Thread Starter
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Joined: Jul 2007
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No I have no BOSE
I have the same head unit, A sub between the chairs and one 4" speaker behind each chair.
Ive already swapped the original sub into a POLK dual coil 8", next to come was those on the side.
The new ones play cleener, but I have to turn up the fader control compared to the originals.
I guess its becorse the new one have a better middlerange/base.
The Q is if I should keep them or go for a set thats stamped 4 Ohm as the ones I replaced??
Best R Olle B
Ive already swapped the original sub into a POLK dual coil 8", next to come was those on the side.
The new ones play cleener, but I have to turn up the fader control compared to the originals.
I guess its becorse the new one have a better middlerange/base.
The Q is if I should keep them or go for a set thats stamped 4 Ohm as the ones I replaced??
Best R Olle B
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