Someone asked me how to do this, so i respond:

First, make sure the one firepod you have is working fine before proceeding. If the first one isn't working properly, don't expect 2 of them to :)

lets take a look at the back of the firepod:

notice how i normally have it hooked up, with the firewire cable from the computer going into port "2" on the back of this firepod. Just seems to work better this way for me.

So put the other firepod on top of that, and here it is lined up:

notice ive plugged in another firewire cable into the first firepod, the black one. Now lets plug that into port 1 of the additional firepod:

turn the second firepod on, and you will see this happen:

(you may need the divx codec or player to see this video)

Turning the top firepod on video

When looking at the firepod control panel, you should see two firepods as below:

here, you may want to mess with the latency settings. You may not get as good low latency operation with 2 firepods running. A safe setting is 10-20 ms. Also, in the lower right hand corner in your system tray firepod icon, you might want to change the cpu settings (low, medium or high) according to what works best.

now, in your audio host, (this example, reaper) you will see all of the inputs available. Since the first firepod connected to the computer in series was the original, those inputs will appear first (in yellow spray paint), and the inputs from the second one will appear next (pink spray paint). I have the inputs from the first one aliased in reaper to have specific names, but the second one i don't. This isnt the firepods fault, its how i have it set up in reaper.

everything should work good!