"Eeyore" wrote in message
...


Doki wrote:

I'm looking at fitting some speakers I have lying around to my car. The
thing is, car headunits usually have wattage quoted for with 4ohm
speakers.

Indeed.


The speakers I have at 6 ohm. Is this going to lead to a noticeable lack
of
volume running a boggo head unit that nominally throws out 25-30WPC RMS,
or
am I just going to lose the top end of the range of clipped distorted car
radio horribleness?

You are going to lose about 1.5dB. In other words the loss in power will
be
virtually inaudible.

If the 6 ohm speakers are more efficient (see the dB/W @ 1m figures) then
it
might even be louder with them.

Speaker efficiency is far more important than a few ohms difference in the
impedance or a few extra watts.

No idea regarding efficiency - they're coming out of a scrap Jag, and IIRC
efficiency is related to enclosure as well as just the driver. I do know
that they sound good, which I all I'm really bothered with.

Doki wrote:

"Eeyore" wrote in message

Speaker efficiency is far more important than a few ohms difference in the
impedance or a few extra watts.

No idea regarding efficiency - they're coming out of a scrap Jag, and IIRC
efficiency is related to enclosure as well as just the driver. I do know
that they sound good, which I all I'm really bothered with.

The enclosure will only significantly affect low fequency performance, not mid
or high frequency (unless it's a horn!).

Graham