Ohm settings

[downrodeo]

Does it really make a tonal difference whether my amp and cab are set at 8 or 16 ohms? I would love to know!

[Skybone]

Not sure either, just make sure that the amp and cab match impedances.

[Elliot]

On  that note - how can you run a 4ohm amp like an Epi valve junior through an 8ohm cab?  Is there some way to make a conversion?

[Twinfan]

You'd have to re-wire the cab, but it might not be possible depending on the ohm value of the speakers in the cab.

My GH50L and Laney Klipp both sound much better at 16ohms - a clearer, louder and brighter tone.

[Brow]

On  that note - how can you run a 4ohm amp like an Epi valve junior through an 8ohm cab?  Is there some way to make a conversion?

I think you can safely run a lower ohmage amp into a higher ohmage cab without it damaging anything. If I remember correctly, it's safe to do so but you lose some of the power of the amp?

[Shag101]

I do not know how the whole ohm thing works on a guitar head to the speaker cab.  I would love to know, but I do know a lot about car audio and can tell you what I know from that.  The amp in a car has no ohm setting.  The ohms are determined by how u wire the speakers "Parallel or Series".  
The lower the ohm load the more volume you will get with less clarity.  The amp will heat up a lot fast in a low ohm setting.  Low ohms are used in car audio for bass, since bass really does not have to be crystal clear, just loud.  
The higher you go in ohms the less output you will get but with better clarity.  Your amp will not get over heated.  

Other considerations are the rms wattage per speaker you have and rms wattage your amp can supply.  thanks chris