Mackie Onyx 1640i Owner's Manual - Page 46

Appendix F: Modifications

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Appendix F: Modifications The following modifications can be carried out on the Onyx 1640i 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 finding an authorized service center in your area. Modifications: Post-Insert FireWire Sends The pre-EQ channel FireWire sends are pre-insert, but the circuit board can be modified 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. Modifications: Post-Fader FireWire Sends The post-EQ channel FireWire sends are pre-fader, but the circuit board can be modified so that they are post-fader instead. This allows the channel level to control the level of the FireWire sends. Modification: Pre-EQ Aux Sends The pre-fader aux sends are post-EQ, so they are affected by the channel EQ controls. The circuit board can be modified 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. 46 Onyx 1640i

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46
Onyx 1640i
Appendix F: Modifications
The following modifications can be carried out on the
Onyx 1640i 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 finding an authorized service center
in your area.
Modifications: Post-Insert FireWire Sends
The pre-EQ channel FireWire sends are pre-insert,
but the circuit board can be modified 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.
Modifications: Post-Fader FireWire Sends
The post-EQ channel FireWire sends are pre-fader,
but the circuit board can be modified so that they are
post-fader instead.
This allows the channel level to control the level of
the FireWire sends.
Modification: Pre-EQ Aux Sends
The pre-fader aux sends are post-EQ, so they are
affected by the channel EQ controls. The circuit board
can be modified 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.