Carver ZR500 - Manual (Page 9)

9
MOUNTING
Before you begin, make sure your amplifier is disconnected from
the power source, with power switch in the “off” position and all
level controls turned completely down (counter-clockwise).
Mount in a standard 19-inch (48.3 cm) equipment rack.
NOTE: When transporting amplifiers in a rack, it is
recommended to use the rear rack supports.
ENSURE PROPER COOLING
Do not block rear or side intake slots or front exhaust vent.
TEMPERATURE & HUMIDITY
CONSIDERATIONS
Normal operation is expected from -20C to +40C ambient at 1/3
rated power into 4 ohms with humidity non-condensing.
AC POWER
Connect the supplied AC mains cord to the IEC socket on the
rear panel and to the AC mains, appropriate for your amplifier, to
provide power to the amplifier.
INPUT CONFIGURATION
(see figure below)
ZR series amplifiers can be operated in stereo, dual-mono and
bridged mono. Input connections are handled via Neutrik
®
Combo connectors as well as Euro-style connectors. Fully
balanced input connections can be configured for pin 2 hot or
pin 3 hot. Ground lift switches are provided for each channel to
remove shield ground from chassis ground. Input sensitivity can
be internally configured to any of four industry standard levels
(see page 7). In stereo mode, a separate signal is required for
each channel. In dual-mono and bridged mono, a single signal is
connected into the channel 2 input. The input board supports
connections via XLR, 1/4 inch TRS or TS phone plugs and Euro-
style connectors.
The inputs are designed to handle balanced or unbalanced
signals. When using unbalanced signals, it is recommended that
the cable be shielded two-conductor with the shield tied to
ground at the source. If shielded single conductor cable must be
used, tie the shield to ground at both the source and amplifier input. In most cases, equipment that has unbalanced outputs will
have lower signal level. In these cases, adjust the amplifier’s gain
using the internal jumper settings as described on page 7. Long
runs of unbalanced signals are prone to loss, noise and hum.
Use balanced signals whenever possible.
INSTALLATION & CONNECTIONS
INPUT
CH 2
INPUT
CH 1
GND
LIFT
MONO
GND
LIFT
PUSH PUSH
Input Connectors
Unbalanced Connections Balanced Connections Equivalent Input Schematic - ZR500 Amplifier
(Polarity and gain jumpers omitted for clarity.)
BALANCED & UNBALANCED CONNECTIONS