CP-251 Power Requirements - Help Required.

Simon Birds · Post by **Simon Birds** » Tue Oct 05, 2004 8:52 pm

Hi all,

I hope someone might be able to help me here as I don't know much about this topic. I live in Australia and am considering the purchase of a CP-251 from the USA. Australia uses 240v power whereas the US uses 110v. I know that it is possible to purchase a 220v power supply for use with the CP251 but I was wondering whether the actual CP-251's are different depending on their intended market ? For example I know some synths have a switch on the back allowing the user to select between different voltages. Can I just use a local 9v 500ma power supply to drive the CP251 or will it explode ?

Any help or comments appreciated.

Cheers

Simon

MC · Post by MC » Wed Oct 06, 2004 9:52 am

Quote from the Moog Music CP251 webpage:

Power supply is included: order 110v for use in US or Canada or 220v for use in Europe, Asia, South America, and Australia.

mee3d · Post by **mee3d** » Fri Oct 08, 2004 7:23 pm

Simon

I had a similar problem recently when I purchased a MuRF directly from Moog and had it shipped to the UK . . Somehow I was under the illusion that the PSU came with it . . and in fact when you order from the moog site you have to select either a 110v or 220v model and there's no listing that you have to order seperatly.

So my MuRF arrived without a PSU and low and behold it uses a different amp rating then the standard moogerfooger PSU . . plugging in the MuRF to one of my other MF pedals PSU didn't have enough amps to power the unit.

What you have to do is buy a generic 9v PSU with enough current to power the CP-251 . . it can supply more amps as the 251 will just draw what it needs but if it's underpowered then she won't light up. Also positive is centre pin . . get one of those PSu's where you can rotate the plug to change the poles.

For example, I think the MF pedals use 200ma PSU's but the MuRF requires 300ma.

If you have it plugged in to your Voyager through the VX-351 then you don't need any power adapters as the Voyager powers it all down the cable.

MC
I have just re-read what you are saying . . that the PSU is supplied as part of the unit/cost . . . then I have been double short changed as neither my 251 or my MuRF were supplied with PSU's. . . I'm sending an email to steve right now!

Mal

alphajerk · Post by **alphajerk** » Wed Oct 13, 2004 2:43 pm

hmm, all my PSU's can be used on any of my pedals/251... am i screwing up my 251? are these PSU's supplying DC or AC?

conspiracy i say! steve im on my way.

mee3d · Post by **mee3d** » Tue Oct 26, 2004 6:29 pm

If you have other PSU's for other pedals so long as the amp rating is higher then the MF pedal requires, the voltage is 9 volts and the polarity is correct (+ center pin) then you are OK.

If you plug in an AC walwart . . and you do get them, then you'll fry your MF pedal, unfortunatly most of them are unlabeled so look for the little DC sign which looks like 2 horizontal lines with the bottom one dashed . . . the AC logo is just a single wavey line.

Thanks to Steve, I received in the post yesterday 2 PSU's for my MuRF and 251 which were not supplied when I originally ordered . . unfortunatley they came with euro 2 pin connections but better then nothing! (I can jam them into our 3 pin UK socket - well safe!!).

Mal