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A2+ Desktop Speakers

Tech_Specs
  • General specifications

    Type
    2.0 powered (active) multimedia desktop speaker system

    Amplifier type
    Dual class AB monolithic

    Power output
    60W peak power total (15W RMS / 30W peak per channel), AES

    Drivers
    2.75″ aramid fiber woofers, 3/4” silk dome tweeters

    Inputs
    3.5mm stereo mini-jack, RCA, USB

    Outputs
    RCA variable line-out

    Input voltages
    110-240V 50/60Hz auto-switching

    SNR
    >95dB (typical A-weighted)

    THD+N
    <0.05% at all power settings

    Crosstalk
    -50dB

    Freq. response
    65Hz-22kHz ±2.0dB

    Input impedance
    10K ohms unbalanced

    Protection
    Output current limiting, thermal over-temperature, power on/off transient protection

  • USB specifications

    Connector type
    USB type-B

    USB device class
    type 1.1 or above

    Internal D/A converter
    TI/Burr Brown PCM2704C

    Input bit depth
    up to 16 bits native

    Input sample rate
    up to 48KHz native

  • Weights and measures

    Dimensions (each)
    6”(H) x 4”(W) x 5.25”(D)

    Weight (LEFT speaker)
    1.6Kg/3.55lbs

    Weight (RIGHT speaker)
    1.4Kg/3.15lbs

    Shipping weight
    4.6kg/10lbs per pair

    Shipping box dims
    10.5” (H) x 15” (L) x 7” (W)

  • Finish options

    Satin Black Paint
    Hi-Gloss White Paint
    Hi-Gloss Red Paint

  • Environmental requirements

    Operating temperature: 32° to 95° F
    Non-operating temperature: -4° to 113° F
    Relative humidity: 5% to 95% non-condensing

  • Materials and contruction

    6.35mm thick MDF cabinets
    3/4″ silk dome tweeters with neodymium magnets
    2.75″ aramid fiber woofers with advanced voice coils

  • Included accessories

    Speaker wire (16AWG), 2 meters (~6.5 feet)
    Power supply
    AC power cord
    Mini-jack audio cable, 1.5 meters (~5 feet)
    USB cable, 1.5 meters (~5 feet)
    Microfiber speaker bags
    Microfiber power supply bag
    Microfiber cable bag
    Setup guide
    Product line brochure

  • Custom built

    Audioengine designs and manufactures our own tweeters, woofers, and other critical components. In other words, these are not “box built” speakers with off-the-shelf parts but custom-designed to our specifications. What we do not fabricate directly in our factory we have made to our designs (parts such as transformers, magnets, and wiring harnesses, for example). The cabinets, drivers, bass port designs, amplifiers, and crossovers are all painstakingly tuned together for each Audioengine model. This, in turn, makes for a much more efficient system that requires much less power than passive speakers and a separate integrated amplifier or similar A/V components.

  • Drivers

    Audioengine uses audiophile-quality, ferro fluid cooled silk dome tweeters with neodymium magnets. Silk tweeters hold up well under high power and the edge-driven design gives very smooth response. The woofers are aramid fiber woven glass composite with rubber surrounds. Aramid fiber is obviously very strong, which means that the woofer retains its shape when being driven at high levels. The speaker materials and construction are robust enough to stand up to some serious thrashing, so speaker grills aren’t needed and they will sound and look great after many years of use.

  • Power amplifiers

    The amplifiers in Audioengine speakers are located in the left speaker and are a conservatively rated analog design. All components are tuned together for each model, which provides a much more efficient system requiring less power than passive speakers and separate amplifiers. Circuit boards for the power and preamp sections are mounted for maximum mechanical shock protection.

  • Power transformers

    Power transformers are a large contributor to the overall audio performance, especially in the low end. Again, no off-the-shelf parts. Audioengine uses gapless core toroidal transformers which have a tighter radiated magnetic field, directly translating to lower noise. They are lighter than standard, lower-cost “EI” transformers and also generate less heat.

  • Sheilding

    Both drivers are directly video shielded and allow the user to place the speakers within a few inches of a video monitor. This shielding also offers protection for hard-drive digital music players.

  • Based on studio monitor designs

    Studio monitor speakers are used by producers and engineers in recording and production studios. They are designed with a theoretical flat frequency response which allows the engineer to create a final mix in such a way that the recorded music will sound good on most other speakers. Although Audioengine speakers are not designed to be up-close “nearfield” studio monitors, we do carry over much of the same higher-end technology, components, and design philosophy for Audioengine speakers.

  • Cabinets

    To minimize unwanted resonances and distortion, Audioengine cabinets have thick high-resin MDF walls with extensive internal bracing. Heavy internal sound-damping material is used to reduce unwanted sound reflections inside the cabinet. All cabinet edges are rounded which look great and reduce high-frequency diffraction effects on the front baffles. Each cabinet contains tuned, front-port slots. Both speakers are tuned and tested together and sold in pairs.