22

Mode Block Diagrams:

The following diagrams are excerpts from the system block diagrams and are intended to provide a simplified view of

the three operating modes of the amplifier. For more complete information please refer to the text on page 5 (items #16 &

17), and the text and/or illustrations on pages 8 – 21.

Stereo Mode:

SPA-1400/1400C Rack Mount Power Amplifier
1+
1
CH 2
INPUTS
CH 2
LEVEL
PARALLEL
MONO
BRIDGE
MONO
CH 1
INPUTS
CH 2 OUTPUTS
CH 1 OUTPUTS
+
+
CH 1
LEVEL CH 1
AMP
CH 2
AMP
MONO/BIAMP
OUTPUT
1+
1
1+
12+
2

Parallel Mono Mode:

CH 2
LEVEL
PARALLEL
MONO
BRIDGE
MONO
+
+
CH 1
LEVEL CH 1
AMP
CH 2
AMP
MONO/BIAMP
OUTPUT
1+
1
1+
1
1+
12+
2
CH 2
INPUTS
CH 1
INPUTS
CH 2 OUTPUTS
CH 1 OUTPUTS

Bridge Mono Mode:

CH 2
INPUTS
CH 2
LEVEL
PARALLEL
MONO
BRIDGE
MONO
CH 1
INPUTS
CH 1
LEVEL
+
+
CH 1
AMP
CH 2
AMP
1+
1
1+
1
1+
12+
2
MONO/BIAMP
OUTPUT
"MONO +"
"MONO "
CH 2
OUTPUT
CH 1
OUTPUT