Listen SC Amp, User Manual

Page: 18 / 31

12
SC Amp
TM
Manual
Introduction
Rear Panel
Important!: Airflow around the heat sink must remain unobstructed during use.
Important!: CAUTION: The heat sink may become hot when operating this product
continuously. Keep all cables clear of the heat sink to prevent damage to
the cables if an overheat condition occurs.
GND Lift - This switch can help eliminate ground loops in
some test systems.
In the out position, sleeves on the Line In and current
monitor output TRS connectors are connected to the
unit's chassis ground. This is the preferred position.
Depressing the switch isolates the sleeves from the
unit's chassis ground at audio frequencies.
DC In Switch - Pressing this switch in enables DC offset
operation. With the switch in the out position the DC offset
operation is disabled.
DC In BNC connector - DC offset input
z
Any voltage on this input, up to ±3.5 V, will cause the
output to be offset by the same amount.
z
Low frequency AC signals (<5 Hz) can also be applied to this connector.
Line In - Power amplifier audio signal input
z
Accepts balanced 1/4" TRS or single ended 1/4" TS connectors
0.1 V/A Out - Current Monitor output for impedance measurements. Provides a signal that monitors the
current being delivered to load, with a sensitivity of 0.1 Volts/Amp.
z
Accepts balanced 1/4" TRS or single ended 1/4" TS connectors
Amplifier Output - Audio amplifier output to load
z
Dual binding posts accept lug terminals, standard banana connectors and bare wires
z
Minimum load is 4 Ohms
Power Out - For powering other Listen, Inc., Hardware Connect series products.
z
Provides 24 VDC 1 A typical, center pin is positive (+)
Important!: Do not attempt to power unapproved devices from this output.
Power In - Multipin connector for SC Amp's AC power adapter.
Important!: CAUTION - Only use the AC power adapter supplied by Listen, Inc.
Figure 6-2: Rear Panel