API 1608 Manuale utente

A P I M o d e l 1 6 0 8
R e c o r d i n g C o n s o l e
O p e r a t o r ' s M a n u a l
= F E
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Important Safety Instructions
1. Please read these instructions
2. Keep this Manual in a safe place
3. Do not use this console near water
4. Clean only with a dry cloth
5. Do not block any ventilation openings
6. Do not install near any heat sources such as radiators, heat registers, stoves, or other devices
(including the power supply) that produce heat
7. Do not defeat the safety purpose of the polarized or grounding type AC plug
8. Protect both the AC power cord to the power supply and the DC cable between the supply and the
console from being walked on or pinched
9. Use only attachments/accessories specified by the manufacturer
10. Unplug this device during lightning storms or when unused for long periods of time
11. Refer all service to qualified personnel
ATTENTION: Exposure to extremely high noise levels may cause
permanent hearing loss or damage. Individuals vary considerably in
susceptibility to noise-induced hearing loss, but nearly everyone will lose
some hearing if exposed to sufficiently intense noise (or even music) for a
period of time. Be safe.
WARNING – To reduce the risk of
fire or electric shock, do not
expose this apparatus to rain or
moisture.

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Introduction
Thank you for choosing API’s 1608 analog mixing console. Whether you are a
newcomer to API or are already a part of the nearly 40-year tradition of API excellence, we
appreciate your purchase.
The 1608 small format recording console is based on the designs of the original API
1604 built in the 70’s and early 80’s. The success of the 1604 and the continued demand
for a small footprint, high quality console has produced the 1608.
API takes great pride - and great care - in the hand assembly of all our professional
audio products. Above all, we appreciate our loyal users – those who create, track, mix,
engineer, master, and produce - who have made the Company what it is today.
API User’s Manual v1.3 01-09
API part # 910-0500 Written for Automated Processes Incorporated by Dan Pfeifer 2008 – All Rights Reserved

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Table of Contents
1.0 Overview
2.0 548B Channel Module
2.1 440B Fader Module
2.2 Mute/Solo Section
2.3 Preamp Section
2.4 Echo/Auxiliary Sends
2.5 Routing and Output Section
2.6 550A Equalizer
2.7 560 Equalizer
2.8 548B Connections
3.0 E1608 Echo Send/Return Module
3.1 Echo Send Section
3.2 Echo Return Section
3.3 Echo Return 500 Slots
3.4 E1608 Connections
4.0 168B Summing Bus Sub-master Module
4.1 Summing Bus Sub-masters
4.2 168B Connections
5.0 268B Program Bus Output Master and Monitor Output Module
5.1 Program Bus Output Masters
5.2 440B Stereo Master Fader Module
5.3 Monitor Output Controls
5.4 268B Connections
6.0 845B Control Room Monitor Module
6.1 Control Room Monitor Controls
6.2 Control Room Monitor Source Selectors
6.3 845B Connections
7.0 840B Central Facilities Module
7.1 Headphone Amplifier
7.2 Talkback
7.3 Mute Group
7.4 Aux Pre = Mute
7.5 Solo Master
7.6 Channel Meter Control
7.7 Peak Threshold
7.8 Oscillator
7.9 840B Connections
7.10 Headphone Jack
8.0 Meter Bridge
8.1 Channel/Bus Meters
8.2 Left and Right Program Meters
8.3 Echo Send/Return Meters
8.4 Power Supply Voltage Indicators
8.5 Talkback Microphone

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9.0 Rear Panel
9.1 548B Channel Module Connections
9.2 E1608 Echo Send/Return Connections
9.2.1 Echo Sends
9.2.2 Echo Returns
9.2.3 Echo Return 500 Slots
9.3 168B Summing Bus Sub-master (ACA) Connections
9.3.1 Summing Bus Sub-master Outputs
9.3.2 Program Bus Mix Inputs
9.4 268B Program Bus/Master Output Connections
9.5 268B Control Room Monitor Output Connections
9.6 845B 6-Track Playback Input Connections
9.7 840B Ancillary Connections
9.7.1 Talkback Remote Port and Oscillator Output
9.7.2 Stereo Headphone Output
9.8 Expander Port
9.9 PSU Connection
10.0 Application Guide
10.1 Multitrack Recording
10.2 Multichannel Mixing
10.3 DAW Hybrid
10.4 E1608 Echo Send Applications
10.5 E1608 Echo Return Applications
10.6 168B Summing Bus and Sub-master Applications
10.7 Echo Return 500 Slot Applications
10.8 Rear Panel DB25 Connection Diagrams

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1.0 Overview
Building on API's rich heritage of extremely high quality recording consoles, we are proud to introduce
the new Model 1608, a full featured small format recording console based on the vintage API 1604
console, which has held its demand and value for over three decades.
The 1608 gives all of the advantages of the 1604 Vintage Consoles while adding new, modern features
valuable to today's Engineers, Producers and Musicians.
Features
•16 Input Channels each with Mic Pre and Equalizer
•Accepts up to eight API 500 Series Modules
•8 Main Buses
•8 Auxiliary Buses
•1 Stereo Bus
•8 Echo Returns with main and stereo bus assign
•Full Center Section Control
•Analog Metering
•5.1 Center Section Monitoring
•Comprehensive Rear Patch Connections
The 1608 is built to the same exacting API build standards as our Vision consoles, Legacy consoles, and
modular products.
The standard fit of a 1608 Console is:
16 548B Inputs with Mic/Line and Direct Output
12 550A Equalizers
4 560 Equalizers
8 Echo Returns
1 Complete Central Facilities Section
16 Manual Faders
1 Stereo Fader

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2.0 548B Channel Module
The 548B Channel module provides a single audio path for bringing signals into
the console for mixing and/or routing to external destinations. Together with the
440B Fader, it provides a comprehensive audio path for a variety of applications:
•Microphone/instrument/line preamplifier
•Equalizer
•High-pass filter
•Balanced insert
•Eight (8) Echo/Auxiliary Sends
•Fully featured mute and solo section
•Pan-pot
•Direct Output
•Program and Summing Bus assignments
All eight echo/aux sends can be routed either pre or post-fader. Echo/aux Sends
7/8 can be routed to feed the Summing Buses.
The basic signal flow through the 548B Channel module is as follows:
input preamplifier -> equalizer -> insert -> fader/mute -> output
routing
Indice
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