Sonance AS2S instruction manual Introduction, AS2 and AS2/S NEW Features, Applications

INTRODUCTION

Thank you for purchasing the AS2 — AS2/S Automatic Speaker Source Selector. The AS2 and AS2/S automatically switch a single pair of speakers between two speaker-level stereo sources: a main source connected to the Input A terminals and a remote source connected to the Input B terminals.

When the AS2 senses a remote source signal present at the Input B terminals, that source signal is automatically switched-through to the output terminals. When the remote source signal is no longer present on Input B, after a short (installer-adjustable) time delay the AS2 and AS2/S automatically switch the outputs to the main source connected to the Input A terminals.

The time it takes the AS2 and AS2/S to switch back to Input A from Input B can be adjusted to suit the different types of audio sources being used, or the preferences of the listeners. The sensitivity of the detection/switching circuitry is also adjustable to work with a variety of audio source equipment.

I N S T R U C T I O N M A N U A L

A S 2 a n d A S 2 / S I N D U S T R Y U P G R A D E AUTOMATIC SECONDARY SPEAKERSOURCE SELECTOR

AS2 and AS2/S NEW FEATURES

The AS2 and AS2/S incorporate several new features that improve their performance and installability:

•The AS2 operates on a single-output 12V DC power supply, and can also be pow- ered directly by 12V sources in cars, boats or RV installations. The AS2 power inputs have reverse polarity protection.

•The AS2 features DC In and DC Out connections that allow multiple Industry Upgrade units to share a single power supply.

•The AS2 and AS2/S Input, Output and Control connectors are removable quick- toggle RIA connectors.

•The AS2 and AS2/S chassis have recessed mounting holes that allow them to easily be wall-mounted using two screws.

•The AS2 and AS2/S chassis’ are compatible with 3” TK-series SnapTrack® from Augat.

APPLICATIONS

Here are three examples of how the AS2 and AS2/S can be used in different system configurations:

Switching Between Speaker-Level Sources (see Illustration 1)

The AS2 can automatically switch two speaker-level sources, such as a whole- home audio system and a local TV set, to a single pair of speakers.

With the whole-home system amplifier connected to the AS2’s Input A and the local zone TV’s speaker outputs connected to the AS2’s Input B, the whole- home system would be the speakers’ main source and would remain auto- matically selected by the AS2 whenever the TV was turned OFF. When the TV is ON it sends an audio signal to the AS2, which would then automatically select the TV as the active source and send its signal to the speakers.

Illustration 1: Switching Between Speaker-Level Sources

As a Paging System “Break-In” Device (see Illustration 2)

The AS2 can serve as a “Break-In” device for paging applications. The continuous music source would be connected to the AS2’s Input A, the paging system amplifier would connect to the AS2’S Input B, and the AS2’s Outputs would connect to the local speakers. When the paging amplifier is activated the AS2 would switch to Input B to reproduce the page; after the page had ended it would revert back to the music signal connected to Input A.

Illustration 2: As a Paging System “Break-In” Device

iPort w/iPod

Whole-Home System

Preamp/Controller

Whole-Home System

Amplifier

+L– –R+	+L– –R+
+	–

INPUT A	CONTROL OUTPUT	INPUT B
	12VDC 100mA
	AUTO SWITCH,	AS2
	SPEAKER LEVEL

IN	+L– –R+
12VDC
150mA
OUT	TRIGGER	B TO A
	SENSITIVITY DELAY
AS2	OUTPUT
Selector

Family Room

Volume

Control

Dining Room

Volume

Control

Bedroom

TV or Monitor

From

Speaker

Outputs

Volume

Control

CD Changer	Paging
	Microphone

Music System	Paging System
Receiver/Amplifier	Amplifier
From	From
Speaker	Speaker
Outputs	Outputs

+L– –R+		+L– –R+
	+ –
INPUT A	CONTROL OUTPUT	INPUT B
	12VDC 100mA

AUTO SWITCH, AS2

SPEAKER LEVEL

IN	+L– –R+
12VDC
150mA
OUT	TRIGGER	B TO A
	SENSITIVITY DELAY
AS2	OUTPUT
Selector

1