Loading ...
Loading ...
Loading ...
4
Installation
Installation Recommendations
FOR RACK MOUNT USE ONLY. Install the AFS2 in a standard-width rack with the provided rack screws. The AFS2 should
not be mounted above or below anything that generates excessive heat. Ambient temperatures should not exceed 95ºF (35ºC)
when equipment is in use. Although the unit is shielded against radio frequency and electromagnetic interference, extremely
high fields of RF and EMI should be avoided where possible.
Making Connections
The AFS2 has balanced inputs and outputs that can be connected to any balanced or unbalanced line-level device. To connect
the AFS2 to your sound system:
1� Ensure the power is turned off on all interconnecting equipment and the AFS2 before making audio connections.
2� See ‘Application Guide’ on page 6 for application system diagrams and notes which can be used for reference
when connecting the AFS2 to your system.
3� Make audio connections via the XLR or 1/4" TRS connectors according to application needs (see ‘Audio Cable
Diagrams’ on page 28 for information on cable wiring). Either the XLR or 1/4" input and output connectors
can be used for balanced or unbalanced connections. However, making simultaneous connections to both inputs of a
channel could unbalance balanced lines, cause phase cancellation, short a conductor to ground, or cause damage to
other equipment connected to the AFS2, therefore, it is not recommended. Connecting to both outputs of a channel
simultaneously is perfectly acceptable as long as the combined parallel load is 1.2kΩ or greater. This is typically not a
problem since most modern-day audio devices have been designed with high-impedance line inputs. If desired, parallel
resistance calculators can be found online and used to verify if the parallel load meets this criteria. Simply enter the input
impedance for the two receiving devices into the calculator to calculate the combined parallel load. Note that connecting
both XLR and 1/4˝ outputs of a channel to an unbalanced and balanced input simultaneously will cause the balanced line
to become unbalanced.
NOTE: The +4 dBu/-10 dBV switch on the back panel of the AFS2 must be set to the correct position for your
application in order to avoid performance issues. +4 dBu is referred to as ‘pro level’ and will be the correct setting for most
applications, as most pro and semi-pro mixers will output a nominal level of around +4 dBu. -10 dBV is referred to as
‘consumer level’ and will need to be used when connecting a source which has an output level approximately 12 dB lower
than pro level equipment. If you’re unsure of the nominal operating level of your mixer’s connections, take a look at the
mixer’s manual or contact the mixer manufacturer.
Loading ...
Loading ...
Loading ...