Bogen AMT-12 - Manual (Page 5)

Daisy-Chaining Speakers
In these examples, pins 1+ and 1- on the Input
(Left) connector receive full-range audio from the
amplifier or from a previous speaker in a chain.
The Parallel Input (Right) connector uses the
1+ and 1- pins to send full-range audio to the
Input connector of another speaker in a chain.
Loop-Thru connects all speakers in the chain in
parallel. Make sure the total impedance of the
chain is not less than what the amplifier is rated
to handle.
In
Example A, the speakers are connected
with Speakon TM connectors from the Amplifier
to Speaker 1, then from Speaker 1 to Speaker 2.
In
Example B, the speakers are connected
with the 1/4" Phone connectors from the Amplifier
to Speaker 1, then from Speaker 1 to Speaker 2.
When wiring the Speakon TM connector, use
Pins 1+ and 1-. For the 1/4" Phone plug,
use Tip (+) and Sleeve (-). DO NOT wire more
than two speakers in parallel unless the amplifier
is rated for operation at less than 4 ohms.
(not used)
(not used)
Tip (+) Sleeve (-)
AMPLIFIER
SPEAKER 1 SPEAKER 2
Wire like-named pins together to make loop-thru speaker cables.
+ -
1+
1-
1+
1-
PASSIVE CROSSOVER
H F L F
Input Loop-thru
AMPLIFIER
SPEAKER 1 SPEAKER 2
Input Loop-thru
Speaker Block Diagram
Connector Wiring Diagram
(View from terminal side)
4
1+ : Phone Plug Tip and Speakon TM Pin 1+
1 - : Phone Plug Sleeve and Speakon TM Pin 1 -
Example A
Example B
1
/4" Phone Plug
Speakon TM Plug