For Boox One Storage fairing, Double Boox fairing: Amplifier is included
For other Fairings: Additional US$180/ set (Original US$225/ set)
(Batwing Small Fairing has no room for amp)

-Use high quality double Layer PCB
-Uniquely designed high efficient power transformer
-Power supply switching FET
-12dB / Oct stereo crossover filter
-High pass / low pass / full range switching function
-Use highly quality nickel guage input RCA and nickel guage
power terminal connector
-Use class D circuitry
-Power and protect indicators

Spec:
-Power supply voltage: 8-16VDC
-Output power (RMS) @ 14.4V/4Ω: 4x50W
-Output power (RMS) @ 14.4V/2Ω: 4x80W
-Output power (Max): 1000 watt
-Freguency response: 40Hz-400KHz
-Distortion (THD): <1%
-Input sensitivity: 200mV-6V
-Signal to noise ratio: >98dB
-Dimension (LxDxH): 136x96x40mm

User Manual for Nakamichi NGTD4-M (Click here)