Stewart Audio CVA50-1 Mono Sub Compact Amplifier



The sub compact CVA-25-1 and CVA-50-1 are built to meet the rigorous demands of high quality commercial, industrial and Pro Audio sound installations. Low cost, lightweight and convection cooling make this Class D amplifier flexible enough for a broad range of applications requiring quiet amplification. With an extremely compact form factor, the CVA’s allow amplification to be located in places normally off limits to standard amplifiers without compromising sound or power. The Plenum rating (UL 2043) and remote volume control further compliment the recessing options. Our Signal Sense Power Technology™ (SSPT™) ensures the amplifier is only powered when there is a signal present, saving energy and extending product life. Like all Stewart products, the CVA’s are designed for sonic accuracy, high efficiency and extended duty cycles.



70V/100V Power Output 50W
Frequency Response (+0, -3 dB) 100 Hz-20 kHz
Power Bandwidth (+3dB, -3dB) 80 Hz-30 kHz
THD+N <.1% @ Full Power
Signal-to-Noise Ratio >80dB
Remote Volume Control 0-10VDC
Input Sensitivity .5V (-6 dBV)
Standard Voltage Gain 151X (43dB) @ 70.7V Out
Input Impedance (Balanced/Unabalanced) 20k Ohms/10k Ohms
Standby, Idle Current Draw, 1/8 Power Draw 0.005/0.01/0.15 Amps
Class D
Input Connectors Euro Block 3-pin, 3.5mm
Output Connectors Euro Block 2-pin, 5mm
Power Supply External in-line 48VDC (Included), 2-pin Euro Block
Cooling Convection-Cooling (No Fans)
Controls Level
LED Indicators Power, Signal Present & Clip
Construction Aluminum Chassis
Dimensions (height, width, depth) 1.25″H x 4.35″W x 3.2″D
Weight 1.2lbs (0.54kg)
Warranty 3 years