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                                                Amplifiers   Speakers   Subwoofers   Powered Enclosures

                                     NXR SeriesNXD Series

NXD Class D Amplifiers
NXD125.4
NXD500.1
NXD250.4 NXD1000.1

Multi-Channel Performance

The 4 channel models feature full range Class D operation with direct feedback technology (DFT).  Ultra high efficiency design with low heat dissipation for long term operation without thermal shutdown.  The DFT circuitry allows for transparent sound from the input  to the output stage of the amplifier.   Acoustical performance that rivals conventional Class A/B amplifiers.

Class D with Boost Topology

The mono amplifiers feature Ultra High Efficient Class D operation. World's first 90% plus efficient car audio power amplifier.  Operates with up to 2.5 times less heat dissipation vs. our competitors Class D design. The Ultra High efficient boost topology regulated power supply, provides long term operation without thermal shutdown  and  less stress on the car's battery.

Ultra High Damping Factor (UHDF)

The mono amplifiers utilize Ultra High Damping Factor (UHDF) providing smoother control of the woofers moving mass for tight hard hitting bass.

OE (Original Equipment) Integration

Want to retain the factory installed radio in your vehicle and add some power? No problem..... the NXD amplifiers provide the option of high level inputs for use with factory installed stereos.  Additionally the amplifiers features a intergraded remote sensing circuit within high level inputs to trigger the amplifier "ON" once signal is detected.
 
Remote Level Control
(NXD250.4, 500.1 & 1000.1)
The overall level of the amplifiers can be adjusted remotely at the front of the vehicle using the provided wired remote level control. The NXD250.4 provides the option for the remote to control channels 1&2, 3&4 or all channels.
 Specifications
 Model

NXD125.4

NXD250.4

NXD500.1

NXD1000.1

 Output Power @14.4V
       4 Ohm

75W x 4

150W x 4

250W x 1 500W x 1
       2 Ohm

125W x 4

250W x 4

500W x 1

1000W x 1

       Bridged 4 Ohm

250W x 2

500W x 2

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 Circuitry

Class D

Class D

Class D

Class D

 Frequency Response

10Hz-20kHz

10Hz-20kHz

10Hz-500Hz

10Hz-500Hz

 S/N Ratio (A-weight)

>95dB

>95dB

>85dB

>85dB

 THD  with 22k filter

<0.08%

<0.08%

<0.15%

<0.15%

 Low Input Level

200mV-6V

200mV-6V

200mV-6V

200mV-6V

 High Input Level

10V

10V

10V

10V

 Remote Auto Sensing

Yes

Yes

Yes

Yes

 Signal Processing
         X-Over Type

HP/FULL/LP

HP/BP/LP/OFF

LP

LP

         Low Pass X-Over Range

50Hz ~ 500Hz

50Hz ~ 5kHz

50Hz ~ 500Hz

50Hz ~ 500Hz

         High Pass X-Over Range

50Hz ~ 500Hz

50Hz ~ 5kHz

50Hz ~ 500Hz

50Hz ~ 500Hz

         X-Over Slope

12dB

12dB

24dB

 24dB     

         Bass Boost (45Hz)

0dB~12dB

0dB~12dB

 0dB~18dB

0dB~18dB

         Subsonic Filter (24dB)

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20Hz

20Hz

20Hz

         Phase Adjustment

---

0 - 180o

0 - 180o

0 - 180o

 Remote Level Control

---

Yes

Yes

Yes

 Battery Voltage Range

10.5VDC-16VDC

10.5VDC-16VDC

10.5VDC-16VDC

 10.5VDC-16VDC

 Size MM (W x D x H)

327 x 191 x 55

327 x 191 x 55

237 x 191 x 55

237 x 191 x 55
Due to continuing product improvement, product and specifications subject to change without notice.

 

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