m-audio firewire 410 power supply polarity?

[miden]

Can anyone advise what the polarity for the m-audio firewire 410 is? I juts bought a used unit with no supply, but need to confirm the polarity (and tip size) before buying one.

Thanks

[tunca]

I've just bought it,too.Using with 6-4 cable with power adapter.I believe inside + and outside -.

But i'm using 6-4 cause i can't find 6-6 cable for now.Try 6-6 cable to use without power supply.

[dsan@mail.com]

There is a replacement power supply offered on Amazon that shows the polarity if you enlarge the picture.
http://www.amazon.com/T-Power-Adapter-M ... B00AYO05SO

I'm finding replacement units on ebay as well.

HTH