I have been reading around the internet about everything technical about amps and cabinets and seem to find contradicting information. >:l

I want minimum maintenance(sp?) on my gear and have been looking at the GT3500H and a Avatar cab, and I'm not sure about how to get the full 350 watts out of the amp. As I understand there are not many companies offering 2ohm 4x12 cabinets that can handle 350 watts.

Can I for example order a 4ohm 4x12 cab that handles 350 watts from Avatar and rewire it for 2ohms or? How does that kind of rewiring work.

Any suggestions greatly appreciated!

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this link it has great information http://www.onlinerock.com/musicians....html#1bookmark

i think fender makes a cab for the metalhead amp and im not sure but i think it was 2 ohms and is 400 watts

with four 16 ohm speakers you can easily wire it for 4 ohms mono.

like a marshall 1960a cab for example, they have four 16 ohm g12t-75's wired up for 4 or 16 ohms mono(depending on which jack you plug into), or 8 ohms per side in stereo.

so...

if my theory is correct, wiring it the same way with the same stereo jack panel type as the marshall, but replacing those speakers with 8 ohm ones would make it 2 or 8 ohms mono(again, depending on which jack you plug into), or 4 ohms stereo per side stereo.

that makes sense to me, but then again i'm rusty on my impendances and whatnot since i havent had to deal with it much lately. you might want a second opinion to back me up.

if you want to go with avatar, just send dave an e-mail telling him what you're going for and he should be able to figure out exactly what you'd need. i've dealt with him before, the man knows his shit, and he's always been good at fast responses.

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Hey i have a wierd question... I found a stereo guitar cab, a 6x10, and instead of having ohm ratings under each input (theres 2 inputs), it just has a big sticker that says

System impedance: 6 ohm
continuous power: 200 watt

sooooooooooo does this mean that its 150 watts a side and 12 ohms a side? orrrrrrrr what. I'm realllllly confused.

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2 Ohms is friggin low impedance.
You may want to check you amp specs to see if 2 Ohms is a minimum load impedance. Most amps I've seen can handle as low as four.

If you the impedance of the speakers is lower than what the amp can handle it may damage the amp.

Look into series and parallel wiring. That should help you a little bit too.

thats weird

its an ancient Sunn guitar cabinet... made to match an SS head which might explain the wierd ass impedances.

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on the back of this amp it says "2 ohms - 350 watts"
also "4 ohms - 220watts"

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Cool. It should work then.

It'll work if you have 4 4 Ohm speakers hooked up in series parallel
and also 4 8 Ohm speakers hooked up in parallel
OR 4 2 ohm speakers hooked up in just series.

Easy heh.

Yeah ok, that pretty much clears everything up for me

But yeah, The GT3500H has a wired ohm requirement for cabs and I don't think I'll ever need the full 350 watts in the near future. Before that I'll probably buy an ENGL or something.

Thanks alot for all the information!

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okay... funny thing i need answered. I have a stereo cab (its a piece of shit) with 2x8ohm inputs, and a marshall head. Now, my impedance switch has 2 settings, 8 ohms, and 16ohms(4ohms). what the hell does 16(4) mean... and what do i set it to to use both cab inputs?

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Which has the switch? The amp?
Only two speakers work when you plug into one input of the cab?
Why do you want to use both inputs?

Amp has the switch. It says exactly

16 ohms.......8 Ohms
(4ohms)...........|
.....|__________|

and has 2 outputs


its a 4x12, each 8ohm jack controls only 2 of the speakers. I want to use all 4 speakers, therefore need to use both inputs, and therefore need the correct impedance to use both outputs on my amp.

EDIT: ADDED
okay, just got an email from marshall support. Turns out that the 8ohm 16ohm is the head, and the 4 ohm 8 ohm is the combo, but they use the same labels on both of them.... yeah. this is balls

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