Can someone point me in the right direction?

[TheWomanizer]

What is the difference between 4 ohms and 8 ohms? And or 16 ohms? This
has puzzled me through the years and have never fully understood. I have
looked on the net but haven't found any helpful information. I am in process
of buying new bass amp and head and have option of 4 ohms or 8 ohms. Anyone
have any info or know where I can read up on this? Thank you,
M.O.D.

 

[Stepan Novotill]

4 ohm speakers seem to be more popular in cars, where there is less
voltage available. It avoids having to use a full bridge amp, or an
output transformer.

Don't use thin wires for hooking up 4 ohm speakers, or your losses and
source impedance will be too high.

My 2 cents.

....Stepan

 

[Sheldon]

There's a guitar amp newsgroup that might be able to give you a better
answer that relates to power amps and cabinet matches. Also, don't be
afraid to contact the amp manufacturer for more info. While there are rules
regarding ohms and speakers, sometimes in the music world there are reasons
to break or bend these rules to get a sound you want.