Manual
Table Of Contents
- The BOX Cover
- Table of Contents
- Important Safety Instructions
- 1.0 Overview
- 2.0 Input Channels 1-4
- 3.0 Summing Input Channels 1-16
- 4.0 Master Section
- 5.0 Stereo Program Master
- 6.0 527 Compressors
- 7.0 Auxiliary Masters
- 8.0 Cue Master
- 9.0 Talkback
- 10.0 Solo System
- 11.0 Monitoring Systems
- 12.0 VU Meters
- 13.0 Rear Panel Connections
- 14.0 Application Guide
- APPENDIX
- API “The BOX”
API “The BOX” Operator’s Manual
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The combination of Walker's incomparable 2520 op-amp, and his "Proportional Q"
circuitry gives the 550A user an uncomplicated way to generate acoustically superior
equalization.
With the long-awaited reissue of this unit, an EQ that has had such a part in the
history of recording is continuing to make history in today's music.
Equalizer Controls:
550A EQ Curves