ESX Audio has an amazing history of manufacturing high quality, highly rated car audio components. The quantum amplifier line is no exception. With a size of just 6" x 10", this amplifier can be used in a variety of applications. It features a robust heavy die-cast heat sink containing a state of the art Class D platform, designed in house. The new Class D platform features an efficiency rating of up to 90% as well as supporting auto turn-on functionality. Please see the last two photo above of a review by the famous car&hifi magazine of Germany. 
 
Specifications:
 
RMS Power
	
1 x 300 Watts @ 4 Ω
	
1 x 500 Watts @ 2 Ω
	
1 x 700 Watts @ 1 Ω
 
Crossovers
	
Subsonic 10-50 Hz
	
Lowpass 30-250 Hz
	
 
Inputs
	
High-Level Inputs, with Auto Turn-On Function and EPS
	
Low-Level Inputs, RCA
 
Other
	
Bass Boost 0-12 dB
	
Phase Shift 0-180°
	
Dimensions: 150 x 50 x 220 mm
	
Efficiency up to 90%