Here is a video on daisy-chaining StudioLive mixers: http://www.youtube.com/watch?v=-NRxck_Cgzk&feature=plcp
See also section 5.5 Cascading Mixers, pg 75 in the StudioLive™ 24.4.2 and 16.4.2 Owner’s Manual
A StudioLive mixer can be expanded to make a larger console. Two
StudioLive 24.4.2s or three StudioLive 16.4.2s can be cascaded together,
using a FireWire cable, to create a single 48-channel console. Because of the
limitations of FireWire, you cannot connect a computer to either of these
configurations; however, you can cascade a FireStudio Mobile or FireStudio
Project with a single StudioLive mixer to add more recording inputs.
You can also cascade two StudioLive 16.4.2s to create a 32-channel
console with full recording capability, playback, and VSL control.
Note: A StudioLive 24.4.2 cannot be cascaded to a StudioLive 16.4.2.
1. To cascade two StudioLives to create a standalone
system (without a computer), connect a FireWire
cable from the first unit to the second unit.
2. Press the System button on the first unit and page down to
Page 3: Digital.
3. Use the Next button to move to the FireWire Link ID field.
4. Use the value encoder to set the ID to 1.
5. Press the System button on the cascaded unit and page
down to Page 3: Digital. Use the Next button to move to
FireWire Link ID field and give each unit a unique ID. Any
value larger than that of the Master can be used for the
Power User Tip: Either unit in the chain can be designated as the Master. Since
both units will function as one large console, sending all channels to the Master
unit’s Main output, aux sends, and subgroups (optional), we suggest that the
unit furthest to the right be designated as the Master. The unit with the lowest
FireWire Link ID greater than zero is automatically set as the Master.
StudioLive 24.4.2 Only – IMPORTANT NOTE: Once a StudioLive 24.4.2’s Link ID
has been changed from 0 to any other number, it will not connect to a computer.
This disables its ability to communicate with the driver, even if it is no longer linked to
another mixer. Because of this, it is highly recommended that you do not change the
Link ID on your mixer unless you plan on using it exclusively without a computer.
StudioLive 16.4.2 Only – IMPORTANT NOTE: If you will be recording with
two StudioLive 16.4.2 mixers, take a moment to look at the serial numbers
on the bottom of each mixer. The mixer with the lowest serial number will be
designated as Inputs and Outputs 1-16 in your recording application. Because
of this, it is recommended that the mixer with the lowest serial number be set as
the Slave and the unit with the highest serial number be set as the Master.