Rackmounting - Work WCR 35 Manual De Usuario

Contents
Safety Instructions ...................................................................................................2
Installation ................................................................................................................3
Introduction and Control
General Operating
Specifications ........................................................................................................10
INSTALLATION
Your WCR 35 was carefully packed in the factory and the packaging was designed to protect
the unit from rough handling. Nevertheless, we recommend that you carefully examine the
packaging and its contents for any signs of physical damage, which may have occurred in
transit .
lf the unit is damaged, please do not return it to us, but notify your dealer and the shipping
company immediately, otherwise claims for damage or replacement may not be granted.
Shipping claimsmust be made by the consignee.

RACKMOUNTING

The WCR 35 fits into one standard rack unit of space (1 3/4"). Please allow at least an additional
4" depth for the connectors on the back panel. Be sure that there is enough air space around
the unit for cooling and please do not place the
power amplifiers etc. to avoid overheating.
CONNECTORS
The WCR 35 has to be installed using XLR connectors. Although the inputs and outputs ARE
fully balanced, the automatic servo-function allows them to operate with unbalanced
sources/loads.
Impedance
The inputs have an impedance of 60 kOhms and can be driven by most input sources. If a
device's output requires a load of 600 Ohms (provided with most output transformers), 600
Ohm resistors should be tied across pins 2 and 3 on the input connectors.
As standard, the outputs of the
optional) and have an output impedance of 40 Ohms. When driving transformer coupled loads,
it may be necessary to create a 600 Ohm source impedance. For this purpose, install two 287
Ohm resistors (tolerance: 1%) in serieswith pins 2 and 3.
Unbalanced/Balanced Operation
90% of all mistakes in audio installations can be attributed to incorrect and defective audio
connections! In order to utilize the
the following section.
For better understanding, the technical difference between
must be clarified:
The Unbalanced System
Unbalanced operation is characterized by a single conductor cable with the center conductor
carrying and the shield at ground.
The Balanced System
Reference Manual
...................................................................................5
....................................................................................7
WCR 35
WCR 35 are electronically balanced (transformer balancing
WCR 35 to its full potential, please pay special attention to
on high temperature devices such as
unbalanced and balanced systems
Page 3