User's Manual
14
CHAPTER 2
MINIMUM SPEAKER LOAD IMPEDANCE 4 OHMS
R
L
UNBALANCED
PREAMP OUTPUTS
+ -
RIGHT
TWEETER
(CURRENT
SOURCE)
+ -
LEFT
WOOFER
(VOLTAGE
SOURCE)
+ -
LEFT
TWEETER
(CURRENT
SOURCE)
LOUDSPEAKERS
+ -
RIGHT
WOOFER
(VOLTAGE
SOURCE)
If your speakers can be biwired or
biamped, they will have completely
separate input terminals for the woofer
sec tion and the upper range. See the
speak er diagram and dis cus sion on
page 12.
Make sure that any links be-
tween the woofer and upper
range posts are re moved
from the speakers when
you want to biamp or biwire them.
Consult your speak er owner’s
manual for details.
The front channels of the Theater
Grand Amplifi er each have two pairs
of outputs which can be used to biwire
your speakers. The idea is to use the
voltage source to drive the woofer,
and the current source to drive the
upper range. This will offer improved
per for mance and still allow you to
connect fi ve speakers for your Home
Theater system.
This page shows the input and out-
put connections for Biwiring a left front
speaker and a right front speaker.
The remaining speaker connections
have been omitted from this drawing
for clarity. They can be connected as
shown on pages 10 and 11.
Output connections
• Connect the amplifi er’s right
front voltage source output
to the right speak er’s woofer
input terminals. Connect the
amplifi er’s right front current
source output to the right
speaker’s upper range input
terminals.
• Connect the amplifi er’s left
front voltage source output to
the left speaker’s woofer input
ter mi nals. Connect the ampli-
fi er’s left front current source
output to the left speaker’s
upper range input terminals.
Biwiring Connections
Input connections
Connect your preamplifi er’s outputs
to the corresponding input jacks on
the Theater Grand Amplifi er.
Speaker-level audio outputs
From: Amplifi er outputs
To: Speaker input posts
Line-level audio signals
From: Preamplifi er main RCA outputs
To: Amplifi er line-level inputs