NXAMP VERSUS NX242: WHAT’S NEW?
Computing resources
The DSP resources have been multiply by 3.5 between the NX242ES4 and the NXAMP (so
it means by 7 between the NX242 and the NXAMP). This will ensure that the NXAMP 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 , on NXAMP4x1, or 4U , on NXAMP4x4 height of the unit, there is plenty of
space for connectors at the back). All the inputs offer 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 NXAMP4x1 Powered TDcontroller uses three separate switch mode power supplies
(SMPS) whereas the NXAMP4x4 uses 5. A first small power supply is used for powering the
TDcontroller digital board, and to initiate the power amp. The other big power supplies are
used for power amplifiers:
•
On NXAMP4x1, channels 1 & 2 (on one power supply) and for channel 3 and 4 (on
the other one).
•
On NXAMP4x4, each channel has its own large power supply.
These large power supplies are precisely tailored to work around a precise Mains voltage,
so separate model of NXAMP exists for 110 ~ 120 Volts on one side (these are models
NXAMP4x1U and NXAMP4x4U), and for 220 ~ 240 Volts on the other side (these are
models NXAMP4x1C and NXAMP4x4C).
However, a Dual voltage version of the NXAMP4x4 exists to accommodate from both 110 ~
120 Volts and 220 ~ 240 Volts (model NXAMP4x4W). The unit will automatically switch to
the correct mode on startup.
Ethersound™ optional board
The NXAMP 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. NXAMP firmware upgrade can also be performed through
this Ethersound™ port. Finally, the ASIO functionality of the NXES104 allows streaming 4
channels of 24 bits/ 48 KHz audio directly from the Ethernet port of a PC computer.
Dante™ optional board
The NXAMP can also accept the optional NXDT104 board witch offers four digital inputs
from a Dante™ network. This optional board uses also the NEXO slot. NXAMP firmware
upgrade can also be performed through this network card. Finally, the ASIO driver for
Dante™ networks allows streaming 4 channels of 24 bits/ 48 KHz audio directly from the
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