8 ohm vs 6 ohm speaker replacement

[Don .S]

Currently have a pair of 2 way Sony speakers rated at 6 ohms 100 watts, can I replace existing full range 6.5 inch with 8 ohm 100 watts replacements without blowing something up or starting a fire? What about the existing crossover, would that and the current tweeter survive, or would they need replacement as well?

 

[kuifje19]

Hi Don,
You can replace the woofers by some 8Ohm woofer, but the sound will definitly be unballanced then.
First, the frequency curve will differ, I asume, and a 8 Ohm speaker will produce less volume then then the 6 Ohm,
However there is a possibility the 8 Ohm is a much more efficient one... then the volume could be the same. Would be a very lucky shot....

So, you can do it, but it is not the best choice, and second,
Are you sure the parameters of the new woofer are matching the box ? maybe the box is just too small or just too big ....

You can do it, nothing will break, but if the sound is what you like ? thats the question.

If you want a serious replacement, you need to recalculate a lot and maybe change the box.... also the crossover.
If the crossover now is at 3000 Hz, the new will be at 4000 Hz for the woofer. ( if you just put the new in )

 

[danielwritesback]

Currently have a pair of 2 way Sony speakers rated at 6 ohms 100 watts, can I replace existing full range 6.5 inch with 8 ohm 100 watts replacements without blowing something up or starting a fire? What about the existing crossover, would that and the current tweeter survive, or would they need replacement as well?

It is then less likely to cause a fire. The lighter load will make the amplifier work better. It could be fun to compare the speakers, and doing so will not inherently inconvenience the rest of your system.

The amplifier will deliver slightly less watts because of the lighter load; however, indoors, in a normal size house, that won't cause an inconvenience.