The NXAMP 4X1 & 4X4 Powered TDcontrollers, available in two 4-channel
sizes produce an output capacity of 4 x 1300W under 2 Ohms for the 4
x 1 model and 4 x 4000W under 2 Ohms for the 4x4 model; establishing
the 4x1 model as one of the most versatile amplifiers and the 4x4 model
as one of the most powerful amplifiers to ever be produced. These models
will permit the users to connect a large number of NEXO speaker systems
while working on a platform that will maximize their performance.
With the optional incorporation of the new generation EtherSound 100
hardware, the NXAMPs will additionally provide an unprecedented capability
of Digital Audio networking and Control.
Processing and Control - The new generation signal
processor in the NXAMPs is identical on both models, and derived from
the NX242 TDcontroller. The processing power has been increased on both
CPU and DSP.
The NXAMPs utilise twin DSPs, with a total processing power that is
3.5 times the processing power of an NX242 fitted with an ES-4 NXtension
board. Amplifier output is now sensed in both voltage and current and
24bit converters execute these measurements. The latest generation audio
converters provide enhanced dynamic range with low latency (500us) analog
input to output, in "flat" mode.
Clean and Cool EEEngine - One of the primary objectives
of Yamaha’s EEEngine technology is to deliver maximum efficiency
in drive performance and power, while providing the audio quality of
traditional class AB amplifiers that have an equivalent heat dissipation
of class D amplifiers. The results have illustrated a 50% reduction
in power consumption which provides outstanding sound quality.
Robust, Rugged Power Supplies - The power supplies
of the NXAMPs are SMPS (Switch Mode Power Supply) full resonance types
with half bridge converters. This exceptional design offers the advantages
of being smaller in size, improved power efficiency, and decreased heat
generation. The design additionally minimizes noise via its Zero Crossing
Switch (ZCS) technology.
The NXAMP4x4 employs four times the structure of a monaural amplifier
with four separate power supplies that present a high power capacity
with a low load drive. In addition, on both models, two converters work
synchronized in the opposite phase, thus cancelling noise. The benefits
will include unrivalled sonic performance and low electro magnetic emissions.
Ferocious Final Stage (with Protection) - The output
transistors in the final stage use thin chip technology with a small
thermal resistance. Moreover, the model used here is a custom version
with a maximum voltage now reaching 300 Volts. The final stage of the
NXAMP 4x4 uses nine such transistors in parallel for a maximum of 135Amp
output current capacity.
Optional EtherSound™ Remote Control -The rear
panel expansion slot allows the easy addition of an NXES104 EtherSound
board. This new generation of EtherSound hardware offers device-to-device
communication and powerful new functions including: ring topology and
a third remote control port that will allow a computer to be connected
anywhere in the chain when both EtherSound ports are already being utilized.