PS1 Powerstand / Daisy Chain

On the relatively rare occasion where you might need to connect the output from one PS1 Power Stand (Classic) / Model I to another PS1 Power Stand (Classic) / Model I:

You can

Run your mic into the first L1™ PS1 Powerstand (let's say - Channel 1).
In Channel 1 insert an XLR cable from the Channel 1 Line Out
At the other end of the cable connect a Pad. The people-at-Bose usually recommend a -20 dBu pad, but some have reported success with -10 dBu
Connect the Pad to the second PS1 Power Stand (Classic) / Model I Channel 1 or 2.
On the first PS1 Power Stand (Classic) / Model I, set the input trim appropriately.
Choose the best preset for your microphone.
On the second PS1 Power Stand (Classic) / Model I, the input trim should be similar to what you set on the first one.
On the second PS1 Power Stand (Classic) / Model I, use the same preset as you used for the first one.

Arrows indicate the direction the signal is flowing.

To avoid the possibility of odd phase effects in the audience, you want to have the two L1™s at least 20 feet apart.