Stereo Program Master; Program Sum Inputs - API The BOX Operator's Manual

API "The BOX"
5.0

Stereo Program Master

"The BOX" stereo program bus employs the same "Active-Combining-Amplifier" (ACA)
technology found in larger API consoles. This high-quality mix bus is a key feature of "The
BOX" that offers depth, punch, and warmth that's only possible with analog summing.
The stereo program master is equipped with a comprehensive set of features that support a
wide range of mixing applications. These features include:
High-quality stereo mix bus (ACA)
•
External summing input (PGM SUM INPUT) with switch
•
Assignable stereo 527 compressor
•
Balanced insert send/return with switch
•
Stereo master fader
•
Balanced line-level output
•
The default signal flow through the program master is as follows:

Program sum inputs

Channels ⇒ program bus ⇒ compressor ⇒ insert ⇒ master fader ⇒ output
5.1 Program Sum Inputs
"The BOX" is equipped with a stereo pair of external inputs that sum with the program
bus. This is useful for adding an external stereo source, such as a sub-mix to the
program bus in "The BOX." These inputs are added to the ACA and sums with the
program bus audio at unity gain.
Rear Panel Program Sum Input Connections
⇓
PGM SUM IN (program sum input): Adds the PROGRAM SUM
INPUTS on the rear panel to the program bus at unity gain
Located pre-compressor and insert
•
Illuminates when engaged
•
PROGRAM SUM INPUT (LEFT & RIGHT):
3-pin female XLR, balanced, low-impedance, line-
level
Located pre-insert and compressor
•
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Operator's Manual