reprecussions of using 15v output adapter with 12v input device

[Takedown3]

sup yall, i just found my old 5.1 surround system with all the cables except for the adapter for the extigy which is a 12v required input. the only adapter i could find in the house that wasn't used is a 15v ouput.

what kind of harm can this do? what about fire or shock?/

[Ratatapa]

I'm not a pro in electricity but for imo it's either that

1) It won't work a all
2) Gives too much power to your System and might break it of overpower

[Cayos]

A quick google says you shouldn't. Google "using a 15v adapter on a 12v device".

[Takedown3]

working just fine but i understand the implications. will shut off and unplug when im done using.

[Niya]

general advice for power supplies:
- voltage HAS to be the same, higher V can break the plugged device, lower V will most of the time not work because of not enough power
- ampere should be the same or higher
and obviously, plug should be the same with the same pin layout

[Purrrfect]

Need to make sure the polarity is the same. That could potentially ruin some stuff. That's the + and - circles with lines going together and one makes a C around the other where they meet. Adapters are usually pretty cheap at radioshack I think.