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Old 10-15-2009, 08:31 AM   #1 (permalink)
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Question help needed by all you fine folk

firstly i would like to say hi im d 30 and from the uk found the forum whilst trolling around on google and have to say hats off!!!!

Ok so here it goes sorry if this has been posted before as said Im new so a bit wet behind the ears

I have managed to get hold of a avt50 head I've only had combo's before so i have been thrown into the weird world of cabinet to head matching

I've been trawling through ebay lookng for a cheap 4x12 so that i can annoy the neighbours but not sure what to buy as far as ohms go Im confused

Been searching for a 4ohms cab but cant find one as he heads 4ohms
On ebay there seems to be loads of 8ohm cabs at a price i can afford can use one of these or must it be a 4ohms cab

All i want to do is play the bloody guitar
thanks in advance
d
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Old 10-15-2009, 12:04 PM   #2 (permalink)
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Re: help needed by all you fine folk

Here's a link to the manual.
http://www.marshallamps.com/download...0hbk%20Eng.pdf

It would seem 4ohm would be your best option, you could pick up a 16ohm 4x12 cab & rewire it to give 4ohm, you will get the help on here about how to do it if you decide to go ahead.
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Old 10-15-2009, 12:15 PM   #3 (permalink)
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Re: help needed by all you fine folk

With the AVT it is a "minimum" 4 ohm that is required. You don't have to match exactly as it is not a tube amp. The AVT cabinets were 8ohms, but it will play just fine through a standard 1960 cab at 16ohms or 4.
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Old 10-15-2009, 01:59 PM   #4 (permalink)
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Re: help needed by all you fine folk

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Originally Posted by poeman33 View Post
With the AVT it is a "minimum" 4 ohm that is required. You don't have to match exactly as it is not a tube amp. The AVT cabinets were 8ohms, but it will play just fine through a standard 1960 cab at 16ohms or 4.

Hi as long as the cab is 4 ohm or higher your safe to use it as poeman says
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Old 10-15-2009, 03:39 PM   #5 (permalink)
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Re: help needed by all you fine folk

Any cab >4 Ohms will work, but youll get most power with lower Ohms, with this amps solid-state output. If it gives 50W into 4 Ohms it will do about 30W into 8 Ohms (not really much difference in loudness - a good option for you) and maybe 15W into 16Ohms

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Old 10-15-2009, 06:33 PM   #6 (permalink)
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Re: help needed by all you fine folk

Welcome to the forum!
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Old 10-18-2009, 03:12 AM   #7 (permalink)
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Re: help needed by all you fine folk

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Old 10-18-2009, 03:33 AM   #8 (permalink)
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Re: help needed by all you fine folk

If you're dead set on getting a 4 ohm cab, you can also look for a 16 ohm cab, then rewire the speakers so that they're all in parallel. Four 16 ohm speakers paralleled will give you a 4 ohm load.

However, as has been mentioned above, running higher than 4 ohms will only drop your power output some - since there's only 3dB of volume difference when the power is cut in half, I doubt it would be enough to even matter. But since solid state amps are not transformer coupled like valve amps are, impedance matching goes out the window.

Hope this helps.
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Old 10-18-2009, 09:39 AM   #9 (permalink)
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Re: help needed by all you fine folk

Quote:
Originally Posted by afinecity View Post
firstly i would like to say hi im d 30 and from the uk found the forum whilst trolling around on google and have to say hats off!!!!

Ok so here it goes sorry if this has been posted before as said Im new so a bit wet behind the ears

I have managed to get hold of a avt50 head I've only had combo's before so i have been thrown into the weird world of cabinet to head matching

I've been trawling through ebay lookng for a cheap 4x12 so that i can annoy the neighbours but not sure what to buy as far as ohms go Im confused

Been searching for a 4ohms cab but cant find one as he heads 4ohms
On ebay there seems to be loads of 8ohm cabs at a price i can afford can use one of these or must it be a 4ohms cab

All i want to do is play the bloody guitar
thanks in advance
d
I have a 4 ohm 4x12 cabinet on eBay right now. I have no idea what shipping would be from the US to the UK so it may not help you much.

Custom Made 4x12 Cabinet - eBay (item 220495119813 end time Oct-24-09 10:52:12 PDT)
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