NXAMP4X1 VERSUS NX242: WHAT’S NEW ?
Computing resources
The DSP resources have been multiply by 3.5 between the NX242ES4 and the NXAMP4x1
(so it means by 7 between the NX242 and the NXAMP4x1). This will ensure that the
NXAMP4x1 will have enough DSP resources to deal with many years of algorithm
improvements. Other key components like CPU speed, memory quantities and so on have
been also upgraded.
Four separate inputs
The analog input stage now offers 4 separate symmetrical inputs, each on XLR with link
(due to the 3U height of the unit, there is plenty of space for connectors at the back, as
well as space for air cooling inside the rack itself). All the inputs offer a considerable 28 dBu
headroom (same than on the NX242). These analog inputs leads to last generation 24 bits
converters running at 48 KHz (like on the NX242-ES4).
Power supply
The NXAMP Powered TDcontroller uses three separate switch mode power supplies (SMPS).
A first small power supply is used for powering the TDcontroller digital board, and to initiate
the power amp. The two other big power supplies are used for power amplifier channels 1
& 2 (on one power supply) and for channel 3 and 4 (on the other one). The two large
power supplies are precisely tailored to work around a precise Mains voltage, so separate
model of NXAMP4x1 exists for 100 ~ 120 Volts on one side (this is model NXAMP4x1U),
and for 220 ~ 240 Volts on the other side (this is model NXAMP4x1C).
Ethersound™ optional board
The NXAMP4x1 is designed to accept the optional NXES104 board witch offers four digital
inputs among a bidirectional 2x 64 channels Ethersound™ ES100 network. This optional
board uses the new NEXO slot which prevents the necessity to open the top panel of the
amplifier for installing the board. NXAMP4x1 firmware upgrade can also be performed
through this Ethersound™ port.
User interface
The front panel LCD display is now a comfortable 2 x 40 characters display, for easy access
to the parameters for each channel.
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