Mismatch voltage


I have a JBL Studio L8400p (120 V AC, 60 Hz, for the US) subwoofer in my stereo system. I would like to add another JBL L8400p sub to the system, but the only ones I can get are the ones that are for the EU (220 V AC, 60 hz for the EU), everything else is the same specs.

it would require a converter (which I have) to hook the 220V to my system. The question is: do anybody knows, or have experience with this set up? will the 220v sub act differently sound wise? or it doesn't matter, as long as it is hook-up to the converter to bring it to 120V?
robert_1
@erik_squires: thanks, I will check the VA rating for the converter that I have. This is why I asked, I knew that it wasn't as simple as to plug the unit into the converter.
Thanks for the info, but according to the seller a step up/step-down is required to connect the 220v one. JBL does not say that this is a switching power supply. They specify 120V for the USA market, and 220V for Europe.
I've been looking at the online schematics though, seems like you may be out of luck. 

Make sure the VA rating of your up/down converter exceeds that of the devices plugged in.
Most devices with switching power supplies are auto-sensing.  The back plate will say something like 100 ~ 220 V 50/60Hz

You do need a plug adapter, and a fuse swap. You do not need a step up/step down transformer.

So, double check!