T-REX CHAMELEON 12V @ 600mA ???

[glox]

Hi guys,
I bought T-Rex Chameleon in order to power two Markbass pedals (compressore & super synth) both are 12V 600mA. So when I've connect them they could not work, super synt made some weird noise... Latter I've realised each output in T-Rex is 300mA
Is that a reason pedals couldn't work - low current??
Is it possible to double the current on 12V outputs in order to get 600mA?? I've heard there is current doubler cable available...?
THANKS HEAPS!!!

[Hauge]

You could use a cable like this to double the current (Not voltage!). But in order to power both MB pedals you would have to occupy 4 outlets on the Chameleon leaving only one for the rest of your pedals (Which could be enough).

[HertzWhenIPlay]

...any updates?
i am looking at getting a couple more markbass pedals to accompany my compressore but am hesitant because of their power requirements and my current board setup.