Sunfire 400 ~ five User Manual

Page of 20
User's Manual
14
CHAPTER 2
Sunfire Corporatio
n Cinema Grand S
ignature 400 ~ fiv
e
R
L
UNBALANCED
PREAMP OUTPU
TS
+  -
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 Cinema 
Grand AmpliÞ 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 Þ 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.
Output connections
•    Connect the ampliÞ er’s right 
front voltage source output 
to the right speak er’s woofer 
input terminals and connect 
the ampliÞ er’s right front cur-
rent source
 output to the right 
speaker’s upper range input 
terminals.
•    Connect the ampliÞ er’s left 
front voltage source output 
to the left speaker’s woofer 
input ter mi nals and connect 
the ampliÞ er’s left front cur-
rent source
 output to the left 
speaker’s upper range input 
terminals.
Biwiring Connections
The center and rear speakers have 
been omitted from this drawing for 
clarity. If your center speaker can be 
biamped, then connect it to the center 
channel outputs in the same way as 
shown above. Otherwise, connect it 
and the rear speakers as shown on 
pages 10 and 11.
Input connections
Connect your preampliÞ er’s outputs 
to the ampliÞ er’s corresponding input 
jacks. If your preampliÞ er has XLR 
outputs, use these wherever possible.
Speaker-level audio outputs
From: AmpliÞ er outputs
To:     Speaker input posts
Line-level audio signals                       
From: PreampliÞ er main RCA outputs
To:     AmpliÞ er line-level inputs