OHM setting on 2 x V30's?

[SEAN RAF]

I've just installed two Celestion V30 16ohm speakers into my Marshall JCM 800 4104 combo...what is the correct ohm setting on the amp?
Cheers
Sean.

[marcus]

If they are in parallel: 8 ohms
series: 32 ohms

[SEAN RAF]

What's parallel? I know that makes me sound thick, but I really don't know. I've wired the two together like so;

positive to positive (red)

negative to negative (black)

I've never had the option with any amp I've owned to run at 32ohm...

[Rsmacker]

You've wired them in parallel, the cabinet is now an 8 ohm cab. You can set the amp at 8 ohms, or 4 ohms.

You could run a 32 ohm cab with an amp that delivers at 4 ohms, it will just never run at full power, no matter how hard you drive it. But if you have a cab at, say 4 ohms, and the amp only will deliver down to 8 ohms, you are gonna have problems!

Just remember to use a cabinet with an impedance equal to or higher than your amplifier.

[SEAN RAF]

Cheers, I'll crank it up before work in the morning...or now...no, in the morning.

[SEAN RAF]

So I set the amp ohm select at 8ohm? I need this spelling out...

[marcus]

So I set the amp ohm select at 8ohm? I need this spelling out...

Yes

[Rsmacker]

Yep, to match the output to the cab so it is working to it's optimum.

If you added another 8 ohm cab to it, than you would set it at 4 ohms. If you set your amp now at 4 ohms it won't deliver full output to the cabinet even flat out but it won't do it any harm.

Fuck the neighbours, give it a razz!

[SEAN RAF]

Fuck the neighbours, give it a razz!

I am the neighbours...unfortunately the love of my life is upstairs asleep. If I so much as put on my slippers in an abrupt manner, I get to see a frying pan really close up.

[Rsmacker]

"Yeah, that's a good effort babe, but you go back to bed now, try again at 7.45 and let's try and get this breakfast thing done right, OK? There's a good gal"




CLAAAAAAANNNNNNNGGGGG!!!!!!!!


(Sound of birds chirping)

[SEAN RAF]

Gotta go...typing too loud...