u8dusst

The speakers I want are 4 ohm speakers, and the amp I want is rated at 100X4 @ 2 ohm and 75X4 @ 4 ohm. So does that mean I have to find 2 ohm speakers to get the full 100 watts?

Here's the amp...

http://www.polkaudio.com/car/specs.php?name=c400_4

And here are the speakers...

http://www.polkaudio.com/car/specs.php?name=mmc6500

prince xizor

iTrader: (2)

Another option is to get another set of 4 ohm speaker and wire them parrallel that would change the ohm load to 2 ohms.

jimmy 2 Times

iTrader: (18)

then you cant fade, or balance the sound

Richiec77

iTrader: (3)

Don't worry too much about the difference in volume between 2ohm and 4 ohm. It is Barelly noticeable (if you can hear it) and adds distortion by around a factor of 10x.

Also, the ouput specs for the rated ohm's are using Static resistance (think resistor) and don't take into Account the True nature of Speaker Dynamics.

http://www.lithosindia.com/Q-Balance%20Detail.htm

Look at the Curve on the Left. It shows the natural Sweep and not the Linear reponse you would think. Ohm's for a Speaker is an Average measurement.

So, All said and done, Just go ahead and wire it up for 4 ohm and you'll be fine.

Richiec77

iTrader: (3)

Also. The curve will change depending on how the speaker is installed. (What type of cabinit, Speaker Wire, Connections, Joints.)

u8dusst

I really appreciate the reply, but you are going over my head here.

I figured id be fine if I wired for 4 ohm, but what im saying is, that amp will only push 75X4 @ 4 ohm, right? I basically want my music as loud as possible.

2MuchRiceMakesMeSick

Hes just saying to stick with 4 ohms because 25 watts wont make that much of a difference. Hes right but if you MUST get a 100watts cause you just want it then buy a bigger amp.

EDIT: Ooops. I hit Edit instead of reply.

Richiec77

iTrader: (3)

Good Translation. I need to forget that Engineering crap when I'm on here