Valve amp question

[bassjamm]

Hi guys,

Kind of still new to the world of valves, but i'm going to be A/B'ing some cabs with my SVT-II (non pro) over the weekend. I was wondering if i could leave the amp on and plug in the different cabs whilst it was on, as long as i make sure it's always got a cab plugged into it? I'd be using a mixture of 4 ohm and 8 ohm cabs.

Failing that, if i were to put the cab on standby, could i do this? And if so, would i need to ensure the amp always has a cab plugged into it?

Or would i have to put it in standby, let the valves drain off the power, turn the amp off, plug the other cab/cabs in and then start it back up?

My apologies if these are some rather basic and stupid questions...i'm learning

Thanks
Jamie

[LeftySteve]

Just flick the standby swith before unplugging/plugging leads and you will be fine. No need to wait at all and certainly no need to shut the whole amp down.

Occasionaly I forget to do this which usually results in a blown fuse!

Cheers

Steve

[bassjamm]

Wicked

[gypsymoth]

"results in a blown fuse"

it could also result in a blown transformer.

[bassjamm]

[quote name='gypsymoth' post='228104' date='Jun 27 2008, 03:35 PM']"results in a blown fuse"

it could also result in a blown transformer.[/quote]

Not so wicked :s

[pete.young]

I'd be inclined to do as much cab swapping as you can without switching it off. You'll probably also need to make sure you don't have a combination of cabs that gives you less than 4 Ohms total load - I'm not familiar with the SVT-II but it would be surprising if it did run down to 2 ohms.

I'd also back the gain off to zero before swapping any cables round.

[bassjamm]

Hi Pete,

Did the testing earlier today...i just whacked it on standby without doing any volume finddling, and it worked fine!!!

And yes it does run down to 2 ohms...it's a beast!!!

Thanks

[rodl2005]

Just make SURE it's either a 4 OR 2 ohm load NOT 8 ohms damage can happen w/ an 8 ohm load. It'll run all nite/week etc at 4 or 2 ohms. I reg. use mine with 2x4ohm cabs = a 2 ohm load & she Snarls!!!!!!