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INTRODUCTION

Thank you for purchasing the LS2/LR2 balanced line sender/receiver. The LS2

converts line-level audio to a balanced line configuration; the LR2 converts

balanced line audio back to line-level.

When connected with high-quality 4-conductor shielded audio wire (such as

Sonance MediaLinQ), the LS2 and LR2 form a system designed to provide

high-quality/low-loss audio for long-distance requirements. They can send

low-level audio signals long distances and in close proximity to sources of

noise interference without inducing noise or high-frequency roll-off. As a

general rule of thumb, a balanced signal should be used for anything but short

lengths of audio cable (under 20 feet) and wherever the possibility of signal

interference is likely (i.e. where the audio signal passes near dimmers, trans-

formers, fluorescent and neon lights, or along the same pathways as house

current). The active LS2 circuitry sends the signal to the LR2, virtually elimi-

nating any noise picked up through the wire during the signal transfer, leav-

ing only the original signal.

The LS2 and LR2 are always used in conjunction with each other, except when

used in conjunction with equipment with balanced inputs or outputs (such as

professional sound or recording equipment). In this manner, the LS2 could be

used as an unbalanced-to-balanced converter and the LR2 could be used as a

balanced-to-unbalanced converter. The LS2 can also be used with the 275 SE

and ASAP2 SAT amplifiers with an LR1 SAT module (part# 91815) installed.

LS2/LR2 NEW FEATURES

The LS2 and LR2 incorporate several new features that improve their

performance and installability:

• The LS2 and LR2 operate on a single-output 12V DC power supply, and can also be

powered directly by 12V sources in cars, boats or RV installations. The LS2 and LR2

power inputs have reverse polarity protection.

•

DC In

and

DC Out

connections allow multiple units to share a single power supply.

• The LS2 and LR2

Balanced Input

and

Balanced Output

connectors are removable

quick-toggle RIA connectors.

• The LS2 and LR2 chassis have recessed mounting holes that allow them to

easily be wall-mounted using two screws.

• The LS2 and LR2 chassis’ are compatible with 3” TK-series SnapTrack

from Augat.

INSTRUCTION MANUAL

LS2 and LR2 INDUSTRY UPGRADE

BALANCED LINE SENDER AND RECEIVER

OUTPUT

BALANCED

INPUT

UNBALANCED

BALANCED LINE SENDER

+L– –R+

OUT

12VDC

150mA

LS2

OUT

12VDC

150mA

LR2

INPUT

UNBALANCED

OUTPUT

BALANCED

BALANCED LINE RECEIVER

+L– –R+

OUT

12VDC

150mA

LR2

INPUT

UNBALANCED

OUTPUT

BALANCED

BALANCED LINE RECEIVER

+L– –R+SH

OUT

12VDC

150mA

LR2

INPUT

UNBALANCED

OUTPUT

BALANCED

BALANCED LINE RECEIVER

+L– –R+SH

Volume

Control

Power Amplifier

Speakers

Whole-Home System

Preamp/Controller

Zone 1

LS2

Sender

LR2

Receiver

LR2

Receiver

LR2

Receiver

Volume

Control

Power Amplifier

Speakers

Zone 3

Volume

Control

Power Amplifier

Speakers

Zone 2

From

Preamp

Output

APPLICATIONS

Here are two examples of how the LS2 and LR2 can be used in different system configurations:

Illustration 1: Locating Amplifiers in Local Zones

SONAMP 875D SE

PROTECTION

AUTO-ON

BBE ON

ACTIVE

1–2 3–4 5–6 7–8

LRLRLR

OUTPUT

BALANCED

INPUT

UNBALANCED

BALANCED LINE SENDER

+L– –R+

OUT

12VDC

150mA

LS2

OUT

12VDC

150mA

LR2

INPUT

UNBALANCED

OUTPUT

BALANCED

BALANCED LINE RECEIVER

+L– –R+

Bedroom System

Receiver

Speakers Speakers Speakers

Bedroom Speakers

From

Main

Outputs

From

Tape Record

Outputs

Aux

Inputs

Whole-Home

System Preamp

CD Changer

iPort with iPod

Whole-Home

System Amplifier

LS2

Sender

LR2

Receiver

Volume

Control

Volume

Control

Volume

Control

Zone 1 Zone 2 Zone 3

Illustration 2: Connecting Remote Sources to a Local System

Locating Amplifiers in Local Zones

(see

Illustration 1

)

Locating power amplifiers close to the speakers they drive minimizes power

loss through long speaker wire runs. The LS2 converts the preamp output to

a balanced signal, allowing it to be sent long distances to local amplifiers

without noise interference or high-frequency loss. Local LR2s convert the

balanced signal back to an unbalanced line-level audio for the amplifiers.

The LS2’s balanced output can be “daisy-chained” to up to nine (9) LR2s.

Connecting Remote Sources to a Local System

(see

llustration 2

)

A whole-home audio system can be connected to a local system, allowing its

sources to become sources for the local system. The LS2 converts a preamp

output or tape record output from the whole-home preamp/controller to a

balanced signal that can then be sent a long distance. An LR2 at the local

system converts the balanced signal to a line-level signal that is then connected

to an input on the local system.

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INSTRUCTION MANUAL 1

Résumé du contenu

Page 1 - INSTRUCTION MANUAL

INTRODUCTIONThank you for purchasing the LS2/LR2 balanced line sender/receiver. The LS2converts line-level audio to a balanced line configuration; the

Page 2

CONNECTING THE LS2 AND LR2 (see Illustration 3)IMPORTANT: Make sure all source components and power amplifiers areturned OFF before making any connect

Page 3

OTHER SONANCE INDUSTRY UPGRADECOMPONENTSAL2 and AL2/S Automatic Secondary Source Selector (Line-Level)The AL2 automatically switches between two line-

Page 4

Sonance • 212 Avenida Fabricante • San Clemente, CA 92672-7531, USA(800) 582-7777 or (949) 492-7777 • FAX: (949) 361-5151Technical Support: (800

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Sonance LR2 Manuel d'utilisateur

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Résumé du contenu

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