Contents

Introduction

Please note, this is a work in progress and subject to change. This document is provided with no warranty or guarantee of any kind.

This document introduces the features of the design and how it can help you. A separate User Guide provides assistance for setup and use of the system, and a Building Guide gives step-by-step instructions for putting together a system like this.

Goals and Features

Portable
The main system is in a 6U rack case (about 22×22×14 inches) and weighs about 80 pounds. Accessories to cover nearly any potential scenario will fit in a small rolling suitcase.
Supports up to 6 wireless inputs
Inputs are provided by a Revolabs wireless microphone system. Most standard dynamic microphones will work with the Revolabs wireless XLR adapter.
Automatic digital room correction
The mixer features TOA's Acoustic Resonance Control (ARC), which will automatically measure the room response and generate a room correction curve. This can be used for up to two speaker zones.
Automatic feedback suppression
The TOA mixer provides automatic feedback suppression on each input.
Integration with conference calling
A Bluetooth cell phone interface allows any cell phone to be used for conference calling. PENDING UPDATE
Two versatile room output channels
Each room output can be 70V, 8-ohm, line level, or microphone level; connectors can be speakON, 1/4 inch, XLR, or bare wire. This allows the system to be connected to and used with most pre-existing setups. A permanently installed in-house system only needs to have a microphone input, for example, and this system provides the accessories and instructions to correctly accommodate the signal levels.
Assistive listening output
An output, a transmitter, receivers, and headphones are provided for people with difficulty hearing. INCOMPLETE
Emergency signal path
The design includes multiple alternate signal paths, and one fully isolated, in case of hardware failure.
Uninterruptible (battery backup) power supply
The UPS will provide power to the system in case of a power outage. The on-battery alarm (beeper) can be silenced (the low-battery alarm can not be silenced).

Pictures

Packed

Packed

View from front, with no connections

View from front, with no connections

View from rear, with no connections

View from rear, with no connections

View from front, with microphone base connected

View from front, with microphone base connected

Microphones in charger base

Microphones in charger base

Front view of rack

Front view of rack

Labels on front

Labels on front

Rear view of rack

Rear view of rack

Labels on rear panel

Labels on rear panel

70V transformer/splitter box

70V transformer/splitter box

Output to two 8-ohm speakers on one channel, daisy-chained, with speakON, TS, or bare wire connections

Output to two 8-ohm speakers on one channel, daisy-chained, with speakON, TS, or bare wire connections

Output to secondary system, with microphone/XLR connection (omit attenuator for line level)

Output to secondary system, with microphone/XLR connection (omit attenuator for line level)

Output to two powered speakers on one channel, daisy-chained, with microphone/XLR connections (omit attenuator for line level)

Output to two powered speakers on one channel, daisy-chained, with microphone/XLR connections (omit attenuator for line level)

Output to secondary system, with microphone/TRS connection (omit attenuator for line level)

Output to secondary system, with microphone/TRS connection (omit attenuator for line level)

Output to assistive listening (headphones) transmitter

Output to assistive listening (headphones) transmitter

Output to cell phone for conference calling

Output to cell phone for conference calling

System with multiple connections: microphone/XLR output for room zone 1, one 8-ohm speaker for room zone 2, cell phone for conference call, assistive listening transmitter, and 70V for audio outside of the room

System with multiple connections: microphone/XLR output for room zone 1, one 8-ohm speaker for room zone 2, cell phone for conference call, assistive listening transmitter, and 70V for audio outside of the room

System with all its parts

System with all its parts

Emergency amplifier

Emergency amplifier

Emergency connections on rear panel

Emergency connections on rear panel

Extra power connections for transmitter and other accessories

Extra power connections for transmitter and other accessories

Inside the 70V transformer/splitter box

Inside the 70V transformer/splitter box

Major Components