Master audio SM Series Manual De Usuario página 16

The outputs are configured as following for the STEREO MODE:
Output
Ch A +
Ch A -
Ch B +
Ch B -
For BRIDGE mode, the following output connection is needed:
Output
+ Pole
- Pole
Load Capacity: The SM amplifiers have a sufficient current capacity to admit very
low loads (down to 2 Ohms). It should be taken into account that many loudspeakers
using passive filters and whose nominal impedance is of 8 Ohm do in fact present
impedance much lower than the nominal one at certain frequencies. Therefore, it is
advisable to use 2 Ohm loads only when one is perfectly aware of the impedance
curve of the loudspeaker system to be connected. Otherwise, the amplifier could
cause cut-offs at the output due to the short circuit protection (low impedance, <2
Ohm) or over heating.
6 - PRE-AMP CONNECTION
The input (BALANCED INPUTS) enables connection
through XLR-3 connectors. The amplifiers incorporate
balanced input for a high rejection of parasites generated
by long signal cables, proximity to electric wires or sources
causing them
BALANCED Inputs:
UNBALANCED Inputs:
Speakon A Speakon B
1 +
1 -
2 +
N.C.
Speakon A Speakon B
1 +
2 +
1. Shield
2. (+) Live
3. (–) Return
1. Not connected (*
2. (+) Live
3. Ground
Binding Post
N.C. Red (A)
N.C. Black (A)
1 + Red (B)
1 - Black (B)
Binding Post
N.C. Red (A)
N.C. Red (B)
)
See Note
16