Alto Professional SR400P - Manual (Page 6)

3 . WIRE CONNECTIONS
-.For Active Speaker Cabinets
As to these circumstances,audio connections is mostly intended for the signal
flow,so,determine the wire configuration according to your real application
system and its connecting facility.Normally,you have the following choices:
1+
2+
1
-
2
-
Please only use the power connectors to make connections with other signal source
equipment for the passive speaker cabinets. The power connector has four terminals:
1+, 1-, 2+, 2-.
In our cabinets, only 1+/1- are used to connect the Speaker+/Speaker-, and 2+/2-
are not used.
-.For Passive Speaker Cabinets
6. PANEL DESCRIPTION-SR400P SP
OTL
IG
HT
CONNECTION PLATE
PASSIVE FULL RANGE: SR400P
(1) INPUT
(2) THRU
Receive the signal coming from an external power amplifier.
(SPK +1/-1 connected; +2/-2 not connected)
Direct LINK for connect in parallel a second speaker cabinet.
(SPK +1/-1 connected; +2/-2 not connected)
Besides, the passive crossover included the electronic protection
on the driver.
POWER HANDLING: 400W-AES Std.
IMPEDANCE: 4 Ohm
Max SPL: 122dB at 1mt
SOUND REINFORCEMENT SPEAKER SYSTEM
LINK
DESIGNED AND DEVELOPMENT IN ITALY
SERIAL
MODEL
INPUT THRU
SR400P
3 6
(1) (2)