A460H - Setup
Gain staging
The amplifier channels are intended to be used with the default output blocks available in Tesira Software.
Care should be taken to match the speaker load to the output capabilities (wattage) of the amplifier. For example, if a
low-impedance single channel speaker load is 60 watts you are perfectly matched at the nominal input level.
Speaker loads less than the rated output of the amplifier will require adjustment to the analog output of the output
device.
Note
To keep correct input level and noise floor ratio the use of the 'Full Scale' analog output attenuation on the output device should be
.
used to adjust the input gain being sent to the amplifier
Low impedance considerations
Single Channel Mode
In Single Channel mode - up to four 60 watt channels can be driven at 4 or 8 Ohms at the same time.
Bridge and 70/100V Mode
In Bridged or CV mode (Constant Voltage mode, or 70/100V mode), channel 1 and 2 as well as 3 and 4
can be independently bridged together. Inputs 1 and 3 should be used.
Constant Voltage considerations
When using the amplifier in
There is no wiring or switch setup difference between 70V and 100V operation.
Constant Voltage mode, the CV, Bridge, and HPF switches must be enabled. The amplifier only supports
Constant Voltage mode when the amplifier channels are bridged.
For 70V operation the nominal signal being sent from the output device to the amplifier input should be 0dbu.
For 100V operation increasing the nominal signal being sent from the output device to the amplifier input should be
+1.6dbu.
Note
The HPF (High Pass Filter) switch should be enabled as part of the 70V or 100V configuration.
The Bridge switch must be enabled when using the amplifier in 70V or 100V mode.