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Anthem STR 2-Channel Integrated Amplifier


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  • Product Description

    Designed, engineered, and Crafted in Canada, the STR Integrated Amplifier combines the benefits of an advanced preamp with the power of a massive amplifier and processor. It includes leading-edge DAC, onboard Anthem Room Correction (ARC™), customizable bass manager for mono or stereo sub outs, MM and MC phono inputs—far more than the average integrated amp.

    Two-Channel Nirvana.

    More power, more control, more connections, more technology. The STR Integrated Amplifier will change your perception of two-channel amplification. Now, you can have it all, in one component, with the kind of superior response and realism that Anthem is famous for.

    More Subwoofer Options

    STR Integrated Amplifier gives you more options for subwoofer configuration. Use one subwoofer or two for both channels, or two independent right-and-left channel specific subwoofers. The bass management in conjunction with ARC is uniquely engineered engineered for seamless subwoofer blending, achieving an incredibly accurate and lifelike performance.

    More Attention to Detail

    We believe that two-channel listening demands attention to detail. A component must balance extreme power and delicate transparency, with flawless signal integrity being the benchmark of stereo performance. To that ultimate end, the Anthem STR Integrated Amplifier is designed with the shortest possible signal paths, and differential analog to digital circuitry to cancel artifacts and keep noise to a minimum.

    More Power, From Oversized Toroidal Transformers

    Clarity is maintained using carefully selected components, many of them engineered exclusively in-house at Anthem, like the huge, precision-wound toroidal transformers and their matching oversized filter capacitors. This massive power supply operates in harmony with the high-current, high-output amplifier section to produce an astounding 550W per channel continuously into 2 ohms! Peak production is effortless and instantaneous, cinching even the most challenging material. The use of multiple bipolar output devices dramatically reduces distortion while ensuring extreme linearity, extensive bandwidth, and stress-free reliability.

    Moving Magnet and Moving Coil Cartridges

    Anthem has also taken into consideration the resurgent popularity of vinyl long-playing records, and has included separate inputs for moving magnet and moving coil cartridges, with the phono section completely shielded to maintain signal purity. The transparency and refinement of the STR Integrated Amplifier reveals the hidden magic of classic media

    More Innovative Electronics

    No less important is Anthem’s non-invasive Advanced Load Monitoring (ALM) circuitry, which protects the output section of the STR Integrated Amplifier by constantly monitoring temperature, current and voltage to ensure optimum long-term performance

    And there’s more. The STR Integrated Amplifier has more useful features than the average integrated amp, with no filler. Everything is geared toward giving you the power and control you need to achieve two-channel nirvana.

    Aside from its cutting-edge technology and Anthem-exclusive innovations, one look tells you that the STR is a different amplifier animal altogether. The large Thin Film Transistor (TFT) display on the front panel can be seen from across the room, and gives you surprisingly easy control over your whole system. It’s a part of the luxurious new industrial design of the STR Integrated Amplifier, a striking look that’s available in two beautiful finishes, Black or Silver.


    • High-resolution preamplifier section
    • High current, high output amplifier section
    • Amplifier uses 8 bipolar output devices per channel, a toroidal transformer power supply, and Advanced Load Monitoring for 200W at 8 ohms, 400W at 4 ohms, 550W at 2 ohms, all continuous
    • Anthem Room Correction (ARC™) optimizes in-room response for perfect sound
    • Bass management for two subwoofers, in mono or stereo
    • Up-sampling of lower-resolution sources to 24-bit/192kHz
    • S/PDIF coaxial and optical, and balanced AES/EBU inputs
    • Asynchronous USB Audio Input supports 32-bit/384kHz PCM, and DSD 2.8 / 5.6 MHz sources
    • MM and MC phono, balanced XLR, and single-ended analog inputs
    • Analog Direct mode
    • Graphic Front Panel Display for easy setup and navigation
    • Controllable via Ethernet, RS-232, or supplied IR remote
    • Available in Silver and Black Finishes
    • Crafted in Canada


    Product Date Sheet


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  • Other Details

    Phono Preamplifier

    Input Impedance 100 Ω (MC), 47 kΩ || 270 pF (MM)
    RIAA Response (20 Hz - 20 kHz) ± 0.1 dB
    Maximum Input (at 1 kHz for <0.1% THD 20 Hz - 20 kHz) 3.6 mV (MC), 37.7 mV (MM)
    Gain (default at 1 kHz, user adjustable ± 20 dB) 55 dB (MC), 35 dB (MM)
    RIAA Response ± 0.1 dB (20 Hz to 20 kHz)
    SNR (at 1 kHz, IEC-A, 2 Vrms output) 82 dB (MC), 96 dB (MM)


    Frequency Response

    digital-in, 192 kHz 10 Hz - 50 kHz (+0.00, -0.50 dB)
    digital-in, 96 kHz 0 Hz - 45 kHz (+0.00, -0.50 dB)
    digital-in, 44.1 kHz 10 Hz - 20 kHz (+0.00, -0.03 dB)
    analog-in, DSP mode 10 Hz - 40 kHz (+0.02, -0.20 dB)
    analog-in, direct mode 10 Hz - 80 kHz (+0.00, -0.10 dB)


    (at 1 kHz, 20 Hz - 20 kHz BW, 2 Vrms output)

    digital-in, 44.1 kHz, 0 dBFS 0.0008%
    analog-in, DSP mode, 1 Vrms input 0.0020%
    analog-in, direct mode, 1 Vrms input 0.0020%


    (at 1 kHz, IEC-A, 2 Vrms output)

    digital-in, 44.1 kHz, 0 dBFS 112 dB
    analog-in, DSP mode, 2 Vrms input 110 dB
    analog-in, direct mode, 2 Vrms input 120 dB
    Maximum Output (<0.1% THD) 2.2 Vrms except analog-direct 3.3 Vrms
    XLR Configuration Pin 1: Ground, Pin 2: Normal, Pin 3: Inverted

    Power Amplifier

    Output (per channel, continuous, 20 Hz - 20 kHz, <1% THD) 200 W (8Ω), 400 W (4Ω), 550 W (2Ω)
    THD (100 W) 0.002% (1 kHz), 0.015% (20 kHz)

    IMD (100 W)

      ITU-R (19 kHz + 20 kHz) 0.0007%
    SMPTE (60 Hz + 7 kHz) 0.005%
    SNR (IEC-A, ref. 200 W) 114 dB
    Frequency Response (20 Hz - 20 kHz) ± 0.1 dB
    Power Bandwidth (-3 dB at 200 W into 8 ohms) 80 kHz
    Slew Rate 30 V/μs
    Damping Factor (20 Hz - 1 kHz) 330
    Channel Separation 101 dB (100 Hz), 61 dB (10 kHz)

    Power Requirement

    120V version: In countries where the line voltage is 120V, this product operates from a single phase AC power source that supplies between 108V and 132V at a frequency of 60 Hz.
    220V-240V version: In countries where the line voltage is 220V, 230V, or 240V, this product operates from a single phase AC power source that supplies between 198V and 264V at a frequency of 50 Hz.

    Power Consumption

    Standby 0.38 W (120V), 0.45 W (240V)
    Standby + Network 1.1 W (120V), 1.2 W (240V)
    Idle 40 W
    Typical Use 250 W
    High Output 500 W

    Height 6-¾” (17.2 cm)
    Width 17” (43.2 cm)
    Depth (not including power cord) 17-½” (44.5 cm)
    Weight (unpacked) 40 lb (18 kg)
    Line/Type Integrated Amplifiers