Someone help. The confusion is too much.

[KillerNeuron]

I just need a definitive answer. If an amp is rated 800W at 4 ohms and 1,200W at 2 ohms, can i use a single 800w 4ohm cab?

For reference its a Fender 800 Pro.

Thanks.

[SactoBass]

Originally Posted by KillerNeuron

I just need a definitive answer. If an amp is rated 800W at 4 ohms and 1,200W at 2 ohms, can i use a single 800w 4ohm cab?

For reference its a Fender 800 Pro.

Thanks.

Yep, you sure can. Perfect match.

[shawshank72]

Of course
2 8ohm cabs=4ohms
2 4ohm cabs=2ohms

Using one cab is fine, if you add another cab it will have to be another 4 ohm cab.

[KillerNeuron]

Thats what I thought but somewhere in these forums someone made a huge deal about not using a single 4 ohm cab if the amp is rated for 2 ohms.

[HolmeBass]

Yes, you can. Enjoy.

[KillerNeuron]

Thank you

[HolmeBass]

Originally Posted by KillerNeuron

Thats what I thought but somewhere in these forums someone made a huge deal about not using a single 4 ohm cab if the amp is rated for 2 ohms.

Don't get confused with posts about tube amps- they need to match their load closely (pretty much most need to match exactly the nominal impedance of the load). It may have been a thread about an amp with a tube power stage.

The 800 Pro appears to have a solid state power section so you should be fine with your setup.

[4Mal]

of course you can. Every rig has limits. Use your ears and some common sense. Running a bass rig near it's limits is a good way to learn the pain of replacement part cost. If you turn the thing real loud and / or crank the bass control, you should expect for things to start failing. In my rig, it's really obvious to me when I'm overdriving it. If I hear stuff going on, especially down low that isn't the beans I had for lunch or something that my bass is doing, that is an indicator that I should turn down a bit.

There is no fail safe. There is no idiot proof. The pilot can cause the place to crash and should therefore pay attention.

Your impedances match up so yo're cool there. You can still smoke a driver by going too loud, running synth'ed square waves through it, jacking the bass up and my fave sending sub-20hz synth tones - that'll cost ya!

[Sartori]

Short answer: Yes, you can. Should work fine. As long as your speakers aren't making awful sounds, no worries.


Long answer: Single 4 ohm cab is very simple on a solid state amp that has a minimum of 2 ohms. You could even use another 4 ohm cab and be fine, as two 4 ohm cabs run in parallel equal a combined 2 ohm load. You could also use four 8 ohm cabs. You could not use four 4 ohm cabs, however, as that would result in an impedance lower than 2 ohms. And that would be bad for the head.

[billfitzmaurice]

Originally Posted by KillerNeuron

Thats what I thought but somewhere in these forums someone made a huge deal about not using a single 4 ohm cab if the amp is rated for 2 ohms.

Said someone should be added to your 'ignore' list post haste.

[Sartori]

Yeah, I can't think of many heads that can do 2 ohms that can't also do 4. And by that, I mean I can't name a single one.