Справочник Пользователя для Mackie 1220I

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   Onyx 1220i

The following modifi cations can be carried out on the 

Onyx 1220i by an authorized service center. Authorized 
service centers may be found online at: 
www.mackie.com/scripts/service_centers/search.asp 
Please contact our technical support department if you 
are having trouble fi nding an authorized service center 
in your area.

The block diagram on page 32 shows these  

modifi cations as dotted lines in the channel signal fl ow.

The pre-EQ channel FireWire sends are pre-insert, 

but the circuit board can be modifi ed so that they are 
post-insert instead.

For example, this allows for the use of an external 

processor on the mic signal, sending the result to the 
FireWire, while still being pre-EQ.

The post-EQ channel FireWire sends are pre-fader, 

but the circuit board can be modifi ed so that they are 
post-fader instead.

This allows the channel level to control the level of 

the FireWire sends. 

The pre-fader aux sends are post-EQ, so they are 

affected by the channel EQ controls. The circuit board 
can be modifi ed so the pre-fader aux sends are pre-EQ 
instead of post-EQ.

For example, your stage monitors will not be affected 

by any channel EQ adjustments.