Thanks for your answer PierM,
Yes you are right, the Firehawk 1500 has not L6 Link i forgot about it.
I remember now a post talking about why Line 6 choose build the Firehawk 1500 without the L6 Links and someone of the Line 6 stuff told that was stupid expensive to add the L6 Link for nothing.
I read and saw the video of the HISS problem before i order my Firehawk 1500 that arrives tomorrow and i will use it alone and with the Helix W/D/W so i hope that the HISS problem will be solve asap to be able to play with all his power.
In the ideascale i asked for a smaller Firehawk 750 or Firehawk 500 to use in bedroom or in smaller places with the Helix, of course without issues between the units, if someone think is a good idea please vote for it.
I know that people asked for just a Firehawk cab (FRFR with the 6 speakers and W/DW) with no FX unit, but taking account that the only different will be $100, i believe that is nice to have the Firehawk FX unit included in the Firehawk cab as backup or just in case you just need or wish an all in one unit. This is my point of view but of course sure not everybody will see it like i do.
Thanks for reading