Stewart Audio AV-25-2
25W 2-Channel 4/8 Ohm Sub Compact Amplifier

OUR PART #  AV-25-2

Our Price: $199.00
List Price: $229.00
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The sub compact AV25 is 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 AV25 allows amplification to be located in places off limits to normal amplifiers without compromising sound or power. Like all Stewart products, the AV25 is designed for sonic accuracy, high efficiency and extended duty cycles. Signal Sense Power Technology™ (SSPT™) ensures the amplifier is only powered when there is a signal present, saving energy and extending product life.


  • Sub Compact 1/4 rack package
  • Two channel amplifier, optimized to drive 4 Ohm and 8 Ohm loads
  • Music and fire alarm muting
  • Clean full–range dynamic power
  • Signal Detect trigger for sleep & wake up
  • Multiple mounting options
  • External inline power supply
  • Made in the USA


  • Boardrooms & classrooms
  • AV projection systems
  • Lecterns and Podiums
  • Plenum applications, UL 2043 rated
  • Pole mounting option
  • Fixed installations with amplifiers located in listening environment
  • Applications where traditional amplifiers won't fit
  • Behind flat screen televisions


  • 4 Ohm Stereo Power: 35 W x 2
    8 Ohm Stereo Power: 25 W x 2
  • Frequency Response (+0, -3dB, 1W): 30 Hz-20kHz
  • Power Bandwidth (+3, -3 dB):30 Hz - 30 kHz
  • Signal to Noise: >100dB
  • THD+N: < .1%
  • External Mute: 5-12VDC
  • Slew Rate: 30V/microsecond
  • Input Sensitivity: 0.5V (-3 dBV)
  • Standard Voltage Gain: 28X (26.5dB)
  • Input Impedance (Balanced/Unbalanced): 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
  • Output Connectors: Euro Block
  • Power Supply: External in-line 48VDC (Included)
  • Cooling: Convection-Cooling (No Fans)
  • Controls: Level
  • LED Indicators: Power, Signal Present, & Clip
  • Construction: Aluminum Chassis
  • Dimensions (h, w, d): 1.25"H x 4.35"W x 3.2" D (3.2H x 11.1W x 8.1D cm)
  • Weight: <0.37 lbs (0.16kg)
  • Warranty: 3 years
  • Plenum Rating: UL 2043 Approved

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