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Audioengine HD3 Powered Desktop Speakers Pair Walnut

Audioengine HD3 Powered Desktop Speakers Pair Walnut
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  • Product Name:
    Audioengine HD3 Powered Desktop Speakers Pair Walnut
  • Model Number:
  • Brand:
  • Manufacturer Warranty:
    3 Year




General specifications

  2.0 powered multimedia speaker system


Amplifier type
  Dual analog class A/B monolithic


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


  2.75 Kevlar woofers, 3/4
 silk dome tweeters


  3.5mm stereo mini-jack, stereo RCA, USB, Bluetooth


  RCA variable line-out, 3.5mm mini-jack headphone out


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


  95dB (typical A-weighted)


  <0.05% at all power settings




Frequency response
  65Hz-22kHz ±2.0dB


Freq. response w/bass reduction switch selected
  100Hz-22kHz ±2.0dB (-5dB down)


Input impedance

5K ohms unbalanced

Headphone amp specifications

Headphone amp type


Full-scale headphone output level
  2.0V RMS


Output impedance
  2 ohms


Recommended headphone impedance range
  10 ohms to 10K ohms

  Bluetooth specifications

Internal D/A converter
  PCM 5102


Input bit depth
  24-bits, upsampled


Bluetooth receiver type
  Bluetooth 4.0 audio


Supported codecs
  aptX, AAC, SBC


Wireless operation range
  Up to 100ft (30m) typical


Input data rate
  Determined by Bluetooth


Wireless latency
  ~30 milliseconds (ms)

Usb specifications

Connector type


USB device class
  USB 1.1 or above


Internal D/A converter
  PCM 5102


Input bit depth
  24-bits, upsampled


Input data rate


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


Dimensions (each)
  7”(H) x 4.25”(W) x 5.5”(D)


Weight (LEFT speaker)


Weight (RIGHT speaker)


Shipping weight
  4.5kg/10lbs per pair


Shipping box dimensions
  11.6 (29.5cm)H x 11.75 (30cm)L x 8.8(22.5cm)W


Materials and construction
  18mm thick MDF cabinets with real wood veneer
  3/4 (20mm) silk dome tweeters with neodymium magnets
  2.75 Kevlar woofers with advanced voice coils

Environmental requirements

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

Custom components

Audioengine designs and manufactures our own speaker drivers and other critical components. In other words, the HD3 is not a “box-built” system with off-the-shelf parts, but includes custom-designed components constructed to our specifications. What we do not   fabricate directly inside our factories we have made to our specific designs parts such as circuit boards, transformers, magnets, and wiring harnesses,   for example.

Efficient integrated design

The speaker cabinets, drivers, innovative bass port designs, amplifiers, and passive crossovers are all critically tuned together for each Audioengine model. This, in turn, makes for a much more efficient system that requires less power than passive speakers and a   separate integrated amplifier or similar A/V components. We build all this goodness into the left speaker cabinet to make it super-easy to connect your smartphone, tablet, computer, TV, network player or any other audio product.

Built-in B1 and D1

We™ve taken features from two of our best-selling products, the B1 aptX® Bluetooth® Receiver and the D1 24-bit DAC, and combined some of this circuitry with advanced speaker components to achieve a complete high-end analog and digital audio system.

High-quality bluetooth audio

The Bluetooth built into the HD3 powered speakers features aptX coding which is an advanced Bluetooth audio codec with very impressive sound. And even if your phone or tablet doesn™t have aptX, the HD3 Bluetooth solution is backwards-compatible with SBC and AAC codecs, so you can wirelessly stream music from any Bluetooth-enabled device and still enjoy all your music. High-fidelity Bluetooth aptX that really works and sounds great. Here™s why:

Extended wireless range Most Bluetooth implementations have very limited range, typically within just one room. But with careful signal management circuitry and antenna tuning, we offer a superior solution that has up to 3 times the range of standard Bluetooth for multi-room use, with no degradation in audio quality.

24-bit DAC The HD3 Bluetooth receiver and USB input both utilize the PCM 5102 DAC, widely known for its low-noise and high-fidelity. The PCM 5102 is used as an upsampling DAC and will pad all bit depths to 24-bits, achieving a higher signal-to-noise ratio and lower noise floor. Due to the high signal-to-noise specs of the PCM 5102, the fact that digital signal is upsampled to 24-bits as well as the added benefit of onboard triple redundancy power source conversion and filtering the HD3   Bluetooth implementation presents impressive low noise and low distortion characteristics with a noticeable improvement over other Bluetooth devices.

Hd3 headphone amplifier

The HD3 contains a high-performance headphone amplifier based on the OPA2134 low-noise opamp. This amp is able to provide low-impedance, high-fidelity audio and a 2-volt output which easily drives a wide range of headphones.

Amplifier design

The amplifiers in powered Audioengine speakers are located in the left   speaker and are a conservatively-rated class A/B analog monoblock design. This is a more traditional speaker/amplifier configuration which provides excellent quality audio and greater flexibility. All circuit boards for the   power and preamp sections are vertically mounted for maximum mechanical shock protection.

Driver designs

Audioengine uses audiophile-quality, ferrofluid-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 Kevlar woven glass aramid composite with rubber surrounds. Kevlar is obviously very strong, which means the woofer retains its shape when being driven at high levels.

Furniture-grade finishes

The HD3 cabinets are available in several handsome finishes, including walnut and cherry veneers as well as satin black paint, offering a wide choice for complementing room furnishings. Also included are detachable grills that add further aesthetic advantages as they are firmly held in place with hidden neodymium magnets for a clean look.


Both of HD3™s speaker drivers are directly magnetically-shielded.



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