Menu Close


    Manufacturer: Picture for manufacturer Integra
    SKU: ADM-20.4
    Richmond : 7

    Mississauga : 12
    Call for pricing

    ADM-20.4 2 Channel Amplifier

    ADM-20.4 2 Channel Amplifier
    Next-Level Home Audio

    Expand your A/V receiver’s audio distribution capabilities in the home theater and beyond with this powerful two-channel WRAT component, featuring auto power on and Three-Stage Inverted Darlington Circuitry.

    • 75 Watts per Channel at 8 Ohms, 1 kHz, 0.08% THD, 2 Channels Driven, FTC
    • WRAT (Wide Range Amplifier Technology)
    • Three-Stage Inverted Darlington Circuitry to Reduce Distortion
    • All Discrete Output Stage Circuitry
    Three-Stage Inverted Darlington Circuitry

    An important upgrade to the core WRAT concept is Integra’s Three-Stage Inverted Darlington Circuitry, a low negative feedback topology featuring a discrete triple transistor array to cut distortion and boost current flow to the speakers. Discrete transistors also run cooler, extending the life of your output stage for more years of trouble-free service.

    All-Analog Circuitry Delivers Ultra-Clear Sound

    All-Analog Circuitry Delivers Ultra-Clear Sound A standard integrated amplifier has the dual task of both processing and amplifying audio signals, and is therefore susceptible to interference from digital circuitry. As a dedicated power amp with all-analog circuitry, the ADM-20.4 is protected against digital interference. When partnered with a quality pre-processor, this unit offers all the benefits of pure analog amplification: a warm, musical, and full-bodied sound.
    High Output Power Supply

    DTS Play-Fi is the most widely adopted Whole Home Audio Technology in the marketplace- it puts you in complete control of your Music and allows you to effortlessly stream from your smartphone, tablet, or PC to DTS Play-Fi speakers and devices throughout the home. Easy to set-up, easy to expand, and easy to enjoy- DTS Play-Fi and Integra- a smart solution.

    Perfect for Custom Installation
    Perfect for Custom Installation

    Integra products are designed and engineered to meet the demands of leading custom installers. CI Centric features such as Web Setup, Onboard HDMI Diagnostics, and compatibility with Remote Monitoring systems like OVRC Pro and Domotz make Integra AVRs the choice of the modern integrator. Optional rack mount kits provide a clean, finished look when installed in racks and cabinets, while a unique bright white back panel facilitates connections in hard-to-reach areas.


    Advanced Features
    • Heavy Duty EI Transformer
    • Two Large 10,000 μF Capacitors for Effective Power Supply
    • Low-Impedance Copper Bus Bars for Perfect Ground Potential
    • High-Current, Low-Impedance Drive
    • Flat, High-Rigidity, 1/16” (1.6 mm) Anti-Resonant Chassis
    • Multi-Zone Audio Capability with Line-In and Line-Out
    Integration Features
    • 12 V Trigger Input and Output with Audio Switch
    • Banana Plug-Compatible, Color-Coded Speaker Posts
    • Input Level Adjustment on Rear Panel
    • Auto Standby On/Off Switch
    • Aluminum Front Panel with Power Light
    • Impedance Selector Switch (4-8 Ohms and 8-16 Ohms)
    • Optional Rack Mount Kit Available IRK-155-3D


    Power Output75 W/Ch at 8 Ohms, 1 kHz, 0.08%, 2 Channels Driven, FTC
    65 W/Ch at 4 Ohms, 1 kHz, 0.08%, 2 Channels Driven, FTC
    THD (Total Harmonic Distortion + Noise)0.08% (Rated Power)
    Damping Factor:60 (Front, 1 kHz, 8 Ohms)
    Input Sensitivity and Impedance870 mV/20 k-Ohms (Unbalanced)
    Rated RCA Output Level and Impedance0.87 V/270 Ohms (Line Out)
    Frequency Response10 Hz–100 kHz/+0 dB, -3 dB
    Signal-to-Noise Ratio110 dB (Line, IHF-A)
    Speaker Impedance4 Ω – 16 Ω
    Headphone Output Impedance330 Ω
    Headphone Rated Output80 mW (32 Ω 1 kHz 10 % THD)
    Power SupplyAC 120 V, 60 Hz
    Power Consumption160 W
    Stand-by Power Consumption0.5 W
    No-Sound Power Consumption45 W
    Dimensions (W X H X D)17 1/8˝ x 5 1/2˝ x 12 1/4˝
    (435 x 139 x 317.3 mm)
    Weight17.6 lbs. (8.0 kg)
    CARTON: Dimensions (W X H X D)22 1/2˝ x 10 3/8˝ x 16 1/2˝
    (572 x 264 x 419 mm)
    CARTON: Weight21.6 lbs. (9.8 kg)


    Manuals and Guides
    Sales Resources
    Products specifications
    Amplifier Type 8 Ohm
    Bridgeable Yes
    Watts Per Channel 51-100W
    Channels 2
    Type Amplifiers
    Product tags
    • (6040)