Bipolar power supply +/-18V with phantom

Hi there,

I need to build a 220 to +/-18V with 2 to 3A with +48v phantom, but I cant find a suitable schematic. I have allready one that I would like to use. But it uses the 7818 and 7918, and this ones are only to 1-1.5A.

Is there anyway I can use this schematic? By changing the trans or adding a current booster...

I'll leave the project in here, hope anyone can help me.

thanks

BTW, I need it to power a mixing table..
The problem here, is that I dont know how much current the table draws, and also I cant find any info about it.
It is a RAM micro 10...
10 chanels, 4 subgroups, no effects and it isnt amplified..

Would 1,5 A be enough??

I dont have a Lab Power supply, so I cant just measure the actual current it draws..

I realy apreciated some help guys