URGENT: cab help

[Mr. Pickle]

alright, my friend is doing a school show in about an hour and he has blown a speaker or two in his cab. i'm still waiting for a reply to see if it was one or two. there are no cabs available around here that will suffice.

basically is there any way to wire the cab just so it works for the night? i know you need to know how many speakers are blown, but taking into account that one or two speakers could be blown, is there any way either could be quickly fixed just by wiring them differently?

k,
me

[Jimbobntnr]

if one speaker is blow out of four, that should actually raise the impedance. it's going to be more quiet, but it won't hurt the amp.

i'm not sure I follow. if you get in a bind, IM me.

[British Kid]

umm... i'm pretty sure that there isnt anything you could do. the impedance would be too different.

just play it how it is with the blown speakers in there. if you can, muffle the busted speakers so they dont make any noise (shove a blanket under the grill or whatever and just block the bad speakers.) but keep the good speakers unblocked.

[Mr. Pickle]

i should specify. his cab is rated at 8 ohms and all of the speakers in it are 8 ohm from what i understand.

[Jimbobntnr]

two of them in parallel would be 4 ohms. that would get him through.

[Mr. Pickle]

on an unrelated note, care to give me a brief summary on wiring speakers and how it changes the impedance.

[Jimbobntnr]

imagine that it takes you 2 seconds to walk through a door. The door is resistance, you are current.

You have one friend. There are two doors into a room, one right behind the other (series), your friend follows you through and it takes the two of you a combined total of 8 seconds (2 seconds per door, per person).

Now, the doors are side by side (parrallel) and you and your friend walk into the room. It takes two seconds.

That's like the sesame street skit for impedance.

Or, jonly's on crack version. I'm not sure which.


series = ohms + ohms.
parallel = (ohms * ohms) / (ohms + ohms)

[Mr. Pickle]

jonly ftw!

thanks again.

[rh15951]

Please make sure the amp can handle a 4 ohm load.

[Jimbobntnr]

And if it can't, sell it for another one.

[pitchfork]

What cab is it for a start.
And couldn't you lend him your avatar if he is that much of a freind?

[Jimbobntnr]

Yesterday, 06:36 PM:
alright, my friend is doing a school show in about an hour

[Mr. Pickle]

i checked the amp, 4 ohms was fine.

the cab was/is a tech 21 4x10

i'm in the same boat with my avatar, still waiting for the replacement to arrive.

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he ended up finding a cab to borrow, but it was a fairly low handling cab, so they just played really quiet or something.


thanks people

/thread

[rh15951]

Yesterday, 06:36 PM:

Little late I realise. Good job it could handle a 4ohm load though eh Einstein? :thumb: