Toa SR-PP4 - Manual (Page 9)

9
7. SINGLE-AMPLIFIER DRIVE AND BI-AMPLIFIER DRIVE
The SR-S4 series speakers are factory-preset to be driven by a single amplifier, however this setting can be
changed to a bi-amplifier drive system by changing the speaker's internal wiring.
(See p. 13; Changing Single-Amplifier Drive to Bi-Amplifier Drive System.)
• Single-amplifier drive
Note: Use a digital processor as required.
• Bi-amplifier drive
SR-S4LWP/S4SWP
Mixer/preamplifier Digital processor Power amplifier
Passive
network
LOW
HIGH
Tweeters
Woofers
x
8
x
8
SR-S4LWP/S4SWP
Mixer/preamplifier Digital processor
Power amplifier
Tweeters
Woofers
LOW
HIGH
LOW
HIGH
x
8
x
8
8. INTERNAL WIRING DIAGRAM
When shipped from the factory, the speaker is internally connected as shown below.
Speaker cord
Passive
network
INPUT +
INPUT –
NC
NC
Green
Black
Red
White x 4
x 4
Tweeters
Woofers