API Audio 1608 Recording Console - Manual (Page 25)

24
AUX IN: Selects the Echo Return Auxiliary Input as the input for the Echo Return
 Illuminates when engaged
NOTE: The signals from the Echo Return Input and Echo Send Output (MIX) are
defeated when the AUX IN button is engaged.
MIX: Selects the Echo Send output as the input for the Echo Return
 Illuminates when engaged
NOTE: The signal from the Echo Return Input is defeated when the MIX button is
engaged.
3.3 Echo Return 500 Slots
The console is equipped with eight Echo Return 500 Slots. These 500 Slots are built to power
and interface any API 500 Series module:
 512C Preamplifier
 525 Compressor
 550A 3-Band EQ
 550B 4-Band EQ
 560 Graphic EQ
Some possible applications of the 500 Slots include:
 Extra microphone/instrument inputs (when equipped with a 512C Preamp)
 Extra signal processing for the Echo Return inputs
 Patchable signal processing for use in the channel Inserts and patch points
 Patchable signal processing for use in the Program Bus Inserts
 Patchable signal processing for use anywhere else (internally, externally, etc.)
When equipped with a 512C Preamp, the 500 Slot and Echo Return combine to form a powerful
input module capable of routing a microphone, instrument, or line input to the Program and/or
Summing Buses with full assignment, panning, and solo functions. This can greatly expand the
capabilities of the console for almost all applications.
When equipped with a 512C Preamp, an API EQ, and a 525 Compressor, three 500 Slots can be
used to create a single high-quality signal path for direct feed to the multitrack recorder or
DAW.
As indicated by these examples, the 500 Slots can be custom configured to add versatility and
maximize performance.
The features of the 500 Slots are as follows:
 All eight 500 Slots are empty in the standard 1608 configuration and equipped with
Bypass Cards
 500 Slots can deliver 48v phantom power to the Echo Return Input connector if
equipped with a 512C Preamp
 The slots are normalled between the Echo Returns Input connector and the inputs to the
Echo Return modules
 If engaged, the module mounted in a slot will process the audio before it arrives at the
Echo Return module input
 If a slot is empty, the signal will loop through the slot to feed the corresponding Echo
Return module input
 The modules in the Echo Return 500 Slots may be used elsewhere by using the ECHO
RETURN 500 SLOT INPUT and OUTPUT patch points on the rear panel
 Inserting a plug into the ECHO RETURN 500 SLOT INPUT jack will defeat the signal from
the Echo Return Input connector, but the output of the slot is still sent to the Echo
Return module
 The 500 Slot may be bypassed by using the Echo Return Auxiliary Input