Nexo NXAMP 4x4 Powered TD Controller, The NXAMP 4X4 Powered TDcontroller, output capacity of 4x4000W under 2 ohm; establishing 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 Engine.

One of the primary objectives of Yamaha’s Engine 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. NX-AMP 4x1 & x4 powered TDcontrollers

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 (ZZCS) 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.

Power Specifications For Nxamp 4x4

• Number of amplifiers channels: 4x Channels, 2 by 2 bridgeable
• Max. output voltage (no load): 4 x 200Volts
• Max. output power (8ohm): 4 x 1900W
• Max. output power (4ohm): 4 x 3400W
• Max. output power (2ohm): 4 x 4000W
• Power consumption (Standby): 20W
• Power consumption (Idle): 150W
• Power consumption (1/8 Power): 3000W

Common Nxamp Specifications From Analog IN To Power Out

• Analog Inputs channels 4x channels, analogue inputs on XLR with a second XLR for linking
• Frequency response: ±0.55dB from 10Hz to 20KHz
• Input Impedance: 20K ohm
• Max Input Level: +22 dBu
• Dynamic Range: All Channels = 105dB unweighted
• THD + noise: Typical 0.1% flat setup
• Latency time: 500us on a flat setup
• Power Supply: Dedicated version for 100 ~ 120Volts or 220 ~ 240Volts

Common Nxamp Features

• Audio Inputs
:
- 4x balanced analogue inputs on with a second for linking, using 24bit converters.
- 4x digital inputs via the optional network card slot at the back.
• Power outputs: 4x Speakon outputs using internal power relay for automatic output assignment regarding setup.
• RS232 port: Allow firmware upgrade for software improvement and new cabinet setups.
• GPIO port: 5x Global Purpose Inputs x Global Purpose outputs for simple remote control  and monitoring.
• Processing: Two DSPs,24bit data with bit accumulator.00MIPS.
• Front Panel: on/off Mains switch, Select Wheel, Menu A and Menu B buttons,40 characters by 2 lines display. Amp protect, Stand-by and power LED’s. Then for each channel: volume indicator (115x LEDs), Individual Mute buttons and red LED, output current signal green led, Speaker Protection yellow LED, Amp. Peak red LED.
• Rear Panel: 1 (nxAMP4x1) or 2 (nxAMP4x4) mains socket;2 serial communications connector; GPIo port, expansion slot for networking audio extension card,4 XLR inputs with link and 4 Speakon 4 outputs.
• Dimensions & Weight: nxAMP 4x1:" Rack - mm (11 ")Depth - .55kg (lbs) net nxAMP4x4:4U " Rack - mm (11 ")Depth - 24.55kg (44 lbs) net

Nxamp User Controls

• System Selection: Allows control across all nexo ranges.
• System Set-up: Within the selected range, if possible, allows cabinets to be set for passive or active mode, wideband or crossover mode, choose among available crossover point, cardioid or supercardioid mode.
• Protection: Multiple Peak Limiters fitted for both selected cabinet and amplifier. Multiple Acceleration, Displacement and Temperature protections on every channel. Inter-channel regulation.
• Delay: Up to 150m (0 ft.)) of delay in 10cm (..44in ) steps
• Input Patching: Allows any of the 4x analogue (or digital) inputs combination to be routed on each output.
• Output Gain: Global and inter-channel gain ± dB in 0.5dB steps.
• Volume control: each channel with x steps from – inf dB to 0dB.
• Save/Recall: Set-up Stores up to 40x user set-ups; on- the-fly recall, without mute or glitches for instant comparison.
• Array EQ: LF or HF shelving filters to compensate ground or stacking effects,± dB, frequency factory tuned.
• Security Mode: Password protected for Read-only or Remote-only Mode.
• Remote control: Full remote control via the ethersound protocol and ESmonitor software.
• Certification: UL, SeMKo (CC ,CCC, KoReA, TSS,PSe
• Green status: Compliant with RoHS and Weee directive