Audioengine HD3 bluetooth steríó hátalari með aptX-HD

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• General specifications

  Amplifier type
  Dual analog class A/B 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, stereo RCA, USB, Bluetooth

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

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

  SNR
  >95dB (typical A-weighted)

  THD+N
  <0.05% at all power settings

  Crosstalk
  <50dB

  Frequency response
  65Hz-22kHz +/-2.0dB

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

  Input impedance
  5K ohms unbalanced

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

• Headphone amp specifications

  Headphone amp type
  OPA2134

  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

  Bluetooth receiver type
  Bluetooth 5.0

  Supported codecs
  aptX HD, 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
  Micro-USB

  USB device class
  USB 1.1 or above

  Internal D/A converter
  PCM 5102

  Input bit depth
  24-bits

  Input data rate
  44.1KHz/48KHz

• Weights and measures

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

  Weight (LEFT speaker)
  1.8Kg/4lbs

  Weight (RIGHT speaker)
  1.5Kg/3.4lbs

  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″ aramid fiber woofers with advanced voice coils

• Finish options

  Satin Black
  High-Gloss White
  Walnut
  Cherry

• Environmental requirements

  Operating temperature: 32 degrees F to 95 degrees F
  Non-operating temperature: -4 degrees F to 113 degrees 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 have taken features from two of our best-selling products, the B1 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 HD coding which is an advanced Bluetooth audio codec with very impressive sound. And even if your phone or tablet does not have aptX HD, the HD3 Bluetooth solution is backwards-compatible with SBC and AAC codecs, as well as standard aptX, so you can wirelessly stream music from any Bluetooth-enabled device and still enjoy all your music. High-fidelity Bluetooth aptX HD that really works and sounds great. Here is 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 aramid fiber woven glass composite with rubber surrounds. Aramid fiber 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.

• Shielding

  Each of the HD3’s speaker drivers are directly magnetically-shielded.