Sonance LS2 - Manual

Industry Upgrade Components

L S 2 a n d L R 2 B a l a n c e d A u d i o S e n d e r / R e c e i v e r

T h e S o n a n c e L S 2 a n d L R 2 f o r m a s y s t e m d e s i g n e d t o s e n d
l o w - l e v e l a u d i o s i g n a l s l o n g d i s t a n c e s a n d i n c l o s e p r o x i m -
i t y t o s o u r c e s o f n o i s e i n t e r f e r e n c e w i t h o u t i n d u c i n g n o i s e
o r h i g h - f r e q u e n c y r o l l - o f f . A s a g e n e r a l r u l e o f t h u m b , a
b a l a n c e d s i g n a l s h o u l d b e u s e d f o r a n y t h i n g b u t s h o r t
l e n g t h s o f a u d i o c a b l e ( u n d e r 2 0 f e e t ) a n d w h e r e v e r t h e
p o s s i b i l i t y o f s i g n a l i n t e r f e r e n c e i s l i k e l y ( i . e . w h e r e t h e
a u d i o s i g n a l p a s s e s n e a r d i m m e r s , t r a n s f o r m e r s , f l u o r e s -
c e n t o r n e o n l i g h t s , o r a l o n g t h e s a m e p a t h w a y s a s h o u s e
c u r r e n t ) . T h e a c t i v e L S 2 c i r c u i t r y c o n v e r t s t h e u n b a l a n c e d
s i g n a l t o a b a l a n c e d c o n f i g u r a t i o n a n d s e n d s t h e b a l a n c e d
s i g n a l t o t h e L R 2 , w h i c h c o n v e r t s i t b a c k i n t o a n

u n b a l a n c e d s i g n a l . T h i s v i r t u a l l y e l i m i n a t e s a n y n o i s e p i c k e d -
up over the length of the wire, leaving only the original signal.

T h e L S 2 a n d L R 2 a r e a l w a y s u s e d i n c o n j u n c t i o n w i t h e a c h
o t h e r, e x c e p t w h e n u s e d i n c o n j u n c t i o n w i t h e q u i p m e n t
w i t h b a l a n c e d i n p u t s o r o u t p u t s ( s u c h a s p r o f e s s i o n a l
s o u n d o r r e c o r d i n g e q u i p m e n t ) . I n t h i s t y p e o f s y s t e m t h e
L S 2 s e r v e s a s a n u n b a l a n c e d - t o - b a l a n c e d c o n v e r t e r a n d
t h e L R 2 s e r v e s a s a b a l a n c e d - t o - u n b a l a n c e d c o n v e r t e r. T h e
L S 2 c a n a l s o b e u s e d w i t h t h e 2 7 5 S E a n d A S A P 2 S AT
a m p l i f i e r s f i t t e d w i t h a n L R 1 S AT m o d u l e ( p a r t # 9 1 8 1 5 ) .

Features:

• The LS2 unbalanced input and LR2 unbalanced output

connectors are high-quality gold-plated RCA connectors.

• The LR2 balanced input and LS2 balanced output connectors

are removable quick-toggle RIA connectors.

• The LS2 and LR2 operate on a single-output 12V DC

power supply (included with both units), and can also be
powered directly by 12V sources. The power inputs have
reverse-polarity protection.

• DC In and DC Out connections on both units allow the

installer to power multiple units from a single power supply.

• Recessed mounting holes allow wall mounting.

• Compatible with 3” TK-series SnapTrak

®

from Augat.

OUTPUT

BALANCED

INPUT

UNBALANCED

BALANCED LINE SENDER

+L–

–R+

SH

LR

IN

OUT

12VDC

150mA

LS2

IN

OUT

12VDC

150mA

LR2

INPUT

UNBALANCED

OUTPUT

BALANCED

BALANCED LINE RECEIVER

+L–

–R+

SH

LR

IN

OUT

12VDC

150mA

LR2

INPUT

UNBALANCED

OUTPUT

BALANCED

BALANCED LINE RECEIVER

+L–

–R+

SH

LR

Volume

Control

Power Amplifier

Speakers

Whole-Home System

Preamp/Controller

Zone 1

LS2

Sender

LR2

Receiver

LR2

Receiver

Volume

Control

Power Amplifier

Speakers

Zone 2

From

Preamp

Output

Typical LS2/LR2 System:

Locating Amplifiers in Local Zones

Specifications:

( 0 d B r e f = 0 . 7 7 5 V )

T H D + N o i s e :

< 0 1 % , 2 0 H z – 2 0 k H z

S i g n a l - t o - N o i s e R a t i o : > – 1 0 0 d B ( I H F - A w t d )
C M R R ( L R 2 ) :

> 9 8 d B ( 2 0 H z – 5 k H z ) ;
> 7 5 d B ( 5 k H z – 2 0 k H z )

F r e q u e n c y R e s p o n s e :

2 0 H z – 2 0 k H z ± 0 . 2 d B

I n p u t I m p e d a n c e :

4 7 k o h m s ( L S 2 u n b a l a n c e d i n p u t s )

O u t p u t I m p e d a n c e :

6 0 0 o h m s ( L R 2 u n b a l a n c e d o u t p u t s )

P o w e r C o n s u m p t i o n :

5 5 m A ± 5 % @ 1 2 V D C ( L S 2 ) ;
3 0 m A ± 5 % @ 1 2 V D C ( L R 2 )

D i m e n s i o n s ( W x H x D ) :

4 ” x 2 ” x 3 ”
( 1 0 2 m m x 5 1 m m x 7 6 m m )

2 1 2 A v e n i d a F a b r i c a n t e

S a n C l e m e n t e , C A 9 2 6 7 2 - 7 5 3 1 U S A

( 8 0 0 ) 5 8 2 - 7 7 7 7 o r ( 9 4 9 ) 4 9 2 - 7 7 7 7

FA X : ( 9 4 9 ) 3 6 1 - 5 1 5 1

Te c h n i c a l S u p p o r t : ( 8 0 0 ) 5 8 2 - 0 7 7 2

W W W. S O N A N C E . C O M

© 2 0 0 7 S o n a n c e . A l l r i g h t s r e s e r v e d . S o n a n c e i s a r e g i s t e r e d t r a d e m a r k o f D a n a I n n o v a t i o n s .

D u e t o c o n t i n u o u s p r o d u c t i m p r o v e m e n t , a l l f e a t u r e s a n d s p e c i f i c a t i o n s a r e s u b j e c t t o c h a n g e w i t h o u t n o t i c e .

F o r t h e l a t e s t S o n a n c e p r o d u c t s p e c i f i c a t i o n i n f o r m a t i o n v i s i t o u r w e b s i t e :

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