10
SAM-1C CONFIGURATION EXAMPLES
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2.3.5 4-channel distribution and balancing amplifier :
The balancing amplifier modules SSOM-04Mc of the SAM-1C can also be configured internally as stereo
distribution amplifiers (1 unbalanced RCA input to 2 balanced XLR outputs each). In this case, the input
signals are applied in parallel to the involved RCA sockets of one channel, so that the second RCA socket
can be used as a loop-through output (see diagram below). The gain of each balanced output can be
adjusted separately. The following example shows a configuration 2x 1 to 2; inputs unbalanced, outputs
balanced.
Signal flow :
SAM-1C/
4V0
2 stereo output modules as balancing and distribution amplifiers
2.3.6 4-channel balancing amplifier :
This version allows the connection of up to 4 unbalanced audio signal sources to balanced inputs. Four
independent amplifier channels are realised by using 2 balancing amplifier modules SSOM-04Mc. The gain
of each output can be adjusted separately in the range of 0..+24 dB, level reductions can also be
achieved with jumpers J4 and J5.
Signal flow :
SAM-1C/
4-0
2 stereo output modules SSOM-04Mc as balancing amplifier
2.3.7 2-channel summing amplifier fully balanced :
This version allows the connection of 2 balanced audio signal sources which are mixed and available as
an unbalanced mono signal at 2x 2 unbalanced cinch outputs and additionally balanced mono at two XLR
connectors. The gain for the balanced outputs can be adjusted independently of each other in the range
of -22..+18 dB.
Signal flow :
SAM-1C/
2M2
3
AUSGANG 1 L SYMMETRISCH
2
1
3
2
1
SYMMETRISCHE AUSGANGSSTUFE
EINGANGSVERSTÄRKER
XLR-MALE
AUSGANG 1 R SYMMETRISCH
3
AUSGANG 2 L SYMMETRISCH
2
1
3 2
1
VERSTÄRKUNG 0..24 dB
AUSGANG 2 R SYMMETRISCH
MASSE
CHASSIS
MASSE
CINCH
3 2
1
3 2
1
MASSE
VERSTÄRKUNG VARIABEL
MASSE CHASSIS
3 2
1
3 2
1
SYMMETRISCHE AUSGANGSSTUFE
EINGANGSSTUFE
XLR-MALE
CINCH
AUSGANG
SYMMETRISCH
MASSE
VERSTÄRKUNG VARIABEL
MASSE CHASSIS
SYMMETRISCHE AUSGANGSSTUFE
EINGANGSSTUFE
XLR-MALE
CINCH
AUSGANG
SYMMETRISCH
3 2
1
3 2
1
SYMMETRISCHE AUSGANGSSTUFE
EINGANGSSTUFE
XLR-MALE
CINCH
DÄMPFUNG VARIABEL
BUS 1 MONO
BUS 2 MONO
MASSE
MASSE
CHASSIS
BUS 1 MONO
BUS 2 MONO
MASSE
VERSTÄRKUNG VARIABEL
STEREO-EINGANG
XLR-FEMALE
CINCH
SYMMETRISCHE EINGANGSSTUFE
BUFFERSTUFE
SYMMETRISCH
AUSGANG MONO
2x SYMMETRISCH
MASSE
CHASSIS
MISCHSTUFE