Just posting this more out of curiosity than anything else really.In this vid at 7 minutes https://www.youtube.com/watch?v=-mD03JT1AgY he says that boogie make special transformers unique for the uk.Basically because the uk has a 240 voltage power supply and europe has anything from 220 upwards to 250.Im from Ireland and bought my mark v from the uk used on ebay.On the back of the amp there are boxes beside the power supply with 220,230 and 240 with a tick beside 240.My mate also has a mark v he bought used from someone in ireland and his has a tick beside 230.Im just wondering would this mean my mark isnt getting enough voltage compared to his?He reckons his sounds better than mine as it has a bit more gain.This is most likely down to preamp tubes though as when i got mine there was a jj tube in the v1 position that i replaced with a spax 12ax7 and i did notice a little less gain than before.Anyway,thoughts on this?
Special transformers made for uk only,affect tone in EU?
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barryswanson
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I live in Australia and we have 240v mains power also. Working as an electrician it's quite common to see that figure vary anywhere between 225-250v. I run my amps through a power conditioner with a mains voltage readout display. Some days when playing I'll think gee it sounds good today and notice the power is actually around 240v and other days it'll sound not as good and I'll have lower mains output. So yeah I do believe it makes a difference but if it bothers you, you can always move a couple of wires around on the board inside the amp. Which will make yours the same as your mates. But if your not competent take it to an amp repair man.
Interesting.I suspected it might as why would boogie go to all that trouble to make a specific transformer for the uk otherwise?So in a way my amp is nearly always in variac mode if its not getting enough power?Im happy enough with how it sounds so I wont be messing about with it.Interesting stuff though nonetheless.Thanks for the reply.
barryswanson
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It's only the input voltage that's different. The transformer will output the same voltages regardless of the input voltage to run the amp. Every export model has the ability run on all voltages worldwide by just moving a couple of wires inside the amp around. You can see them written on the board from memory it's like 100, 110, 115, 220, 230, 240v. So an export model can be changed to US voltage easily but a US version doesn't have the extra winding taps to do so to prevent grey imports.
thunda1216
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tone doesn't go through transformers...nor speaker magnets...
barryswanson
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thunda1216 said:
We know that the signal from the guitar doesn't go through these components but they do have a direct effect on that signal. Like the Variac switch reducing the overall voltage of the amp and altering its sound.
barryswanson
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diddlydan said:
If your wall outlet voltage is consistently that high I would consider changing your amp to 240v? Maybe Authorised Boogie can chime in here because it might not be much of an issue.
My amp actually is 240.I was just wondering if it under powered as european voltage is usually lower than 250 apparently.I got my mark v used on ebay in uk.But ya ill check it a few times over the next few days to see if it is always that high.cheers for the replies thoughbarryswanson said:
