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Stewart Audio PA-50B 2-Channel Half Rack Amplifier - 25W x 2 at 8 Ohm
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    Stewart Audio PA-50B 2-Channel Half Rack Amplifier - 25W x 2 at 8 Ohm

    Manufacturer: Stewart Audio, Inc.

    Item #: PA50B   •   MFG #: PA-50B


    List Price:$489.00
    Our Price:$409.00

    free ship
    Availability: Direct Ship From Manufacturer
    Item ships directly from the manufacturer. Normal delivery time is 2-7 business days and is subject to manufacturer availability. Need it sooner? Call 800-522-2025, or email Customer Service for expedited delivery options.
    • 2 - 7 Day Normal Delivery Time - Faster Shipping Options at Checkout or Call Us.



    The PA Series was specifically designed to meet the rigorous requirements of Sonic Accuracy, High Efficiency, Low Power consumption and extended duty cycles all in a very compact Half Rack Package. Low cost, lightweight and convection cooling make this amplifier perfect for high quality commercial, industrial and Pro Audio sound installations.

    Stewart Audio's flexible design allows bridging to mono for increased power and will also accept balanced or unbalanced signals by way of 1/4" TRS input connectors. With thousands in operation across a broad range of applications, this hardworking Class AB amplifier has passed the test of time again and again.

    • Features

      • Compact Half Rack Package
      • Two Channel Amplifier, Optimized To drive 4 Ohm And 8 Ohm loads
      • Convection Cooled (No Fans)
      • Clean Full-Range Dynamic Power
      • World Class Reliability
      • Bridgeable
      • Ultra Efficient Switch Mode Power Supply
      • Made In The USA
    • Specifications

      • 8 Ohm Stereo Power: 25W
      • 4 Ohm Stereo Power: 50W
      • 8 Ohm Bridged Power: 100W
      • Frequency Response(+0, -0.5 dB, 1W): 20Hz - 20kHz
      • Power Bandwidth (+3, -3dB): 5Hz - 100kHz
      • THD+N: <.1%
      • Signal to Noise Ratio: >100dB
      • Damping Factor: >200
      • Slew Rate: 30V/microsecond
      • Input Sensitivity: 1V (0 dBV)
      • Standard Voltage Gain: 40x (32dB)
      • Input Impedance (Balanced/Unbalanced): 20k Ohms
      • Idle Current Draw, 1/8 Power Draw: 0.13/0.56A
      • Class: AB
      • Input Connectors: TRS
      • Output Connectors: Terminal Strip
      • Power Supply: High-speed Switching
      • Cooling: Convection-Cooled (No fans)
      • Controls: Power, Channel Gain
      • LED Indicators: Power & Clip
      • Construction: Steel & Aluminum Chassis
      • Dimensions (H,W,D): 1.75"H x 8.2"W x 6.2"D
      • Weight: 3.5lbs
      • Warranty: 3 years
    • Applications

      • Audio Video Production
      • Pre/Post Productions
      • Project Studios
      • Broadcast Applications
      • Instrument Rigs
      • Sound Reinforcement
      • Fixed installations with amplifiers located in listening environment

    Add Accessories for your PA-50B: