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The other danger is that the voltage could rise high enough to damage the amp and that is more likely with a lower powered amp than a high one. Our pistol club (when you could shoot pistols!) was on a massive ex R navy genny and we had to keep 2 bars of a fire going to load it. If some bod unplugged it lamps would blow!
I would buy a 500va Variac and a cheap voltmeter and keep it all close by and monitor the supply.
I would also worry about earthing!
Dave.
(Uninterruptible power supply)?
e.g. http://cpc.farnell.com/webapp/wcs/stores/servlet/Search?pageSize=25&st=ups&catalogId=15002&categoryId=700000010270&langId=69&storeId=10180
I bought one at my last house, after the voltage went down to 130V one day, and destroyed the motherboard in my expensive dual-Xeon workstation
the better ones have a massive lead acid battery, and if the voltage goes out of a range, they switch to the battery
the bigger batteries will last longer
btw if the battery is big enough, you can just pull the plug before you start the gig
some of them do have an audible alarm you'd need to disable (beeps) when providing power from the battery
worth investing in one for your home anyway if you live somewhere that has power cuts
All in it was about £60 for the Joyos and an ABY pedal, and amazingly didn't sound like a wasp in a box.
I found using a Line6 M13 multi FX was badly affected by the fluctuating power but the PA not so much.
I just didn't trust that my valve amps wouldn't come to harm, but that might be me being a bit too precious about them.
I tried using a Mesa F50 and a Budda SD18 at my first generator powered gig and the budda blew two fuses (hasn't blown one since) and the Mesa sounded terrible.
the band manager is speaking to the venue today, and is going to try and get a separate generator for the band... they run the whole venue of a generator so I guess the extra draw from the band was the issue last time. I'll keep my voltguard on for sure!
cheers
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
For this gig I'd probably use the Carr and run it in Triode mode, if you don't have any other option - it's less hard on the power valves in case of voltage spikes. Taking the voltage stabiliser is an excellent idea if it will cope with the demand.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
ID, good idea (and NOT just saying that) The digital and pre amp supplies are regulated and I know the main PA, which is not, will not mind a fair amount of overvolts since they are tested, quite brutally to cope with mains + 10%.
Dave.
An interesting point about the old Peaveys is that the 220/240 version has a voltage selector, and it's surprising how many I've seen come in set to 220V. Never seen one damaged like that though - I always set them to 240 to be on the safe side of course.
Sorry, slight thread hijack!
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
i had a bass player in the studio the other day using a crappy encore bass into a behringer practice amp... he sounded unbelievable in the room. (luckily I split the signal with a Moogerfooger before the amp, and ran it through a hefty valve preamp and an 1176 into the converters)
im sure that 99.99% is in the fingers... but with my hack like playing, I need all the help I can get - hence the boutique amps