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Type
Powered Bluetooth aptX HD speaker system
Amplifier Type
Class AB
Power Output
60 W peak power total (15 W RMS / 30 W peak per channel), AES
Drivers
2.75” aramid fiber woofers
0.75“ Silk dome tweeters
Inputs
3.5 mm stereo mini-jack, RCA L/R, USB, Bluetooth
Outputs
RCA variable line-out, 3.5 mm mini-jack headphone out
Input Voltages
110-240 V 50/60 Hz auto-switching
SNR
>95 dB (typical A-weighted)
THD+N
<0.05% at all power settings Crosstalk
<50 dB Frequency Response
65 Hz-22 kHz ±2.0 dB
Frequency Response w/ Bass Reduction Switch selected
100Hz-22kHz ±2.0dB (<5dB down)
Input Impedence
5K ohms unbalanced
Protection
Output current limiting, thermal over-temperature, power on/off transient protection
Power Consumption
Idle: 10W
Internal D/A Converter
PCM 5102
Input Bit Depth
24 bit (padded)
Bluetooth Receiver Type
Bluetooth 5.0
Supported Codecs
aptX HD, aptX, AAC, SBC
Wireless Operation Range
Up to 100 ft (30 m) typical
Input Data Rate
Determined by Bluetooth
Wireless Latency
~30 milliseconds (ms)
Connector Type
Micro-USB
USB Device Class
USB 1.1 or above
Input Bit Depth
24 bit (padded)
Input Sample Rate
44.1 kHz/48 kHz
Headphone Amp Type
OPA2134
Full-scale Headphone Output Level
2.0 V RMS
Output Impedence
2 ohms
Recommended Headphone Impedence Level
10 ohms to 10K ohms
Dimensions (HWD)
Each speaker – 7″(17.8 cm) x 4.25″ (10.8 cm) x 5.5″ (14 cm)
Weight
Left (powered) – 4 lb (1.8 kg)
Right (passive) – 3.4 lb (1.5 kg)
Total Shipping Weight
10 lb (4.6 kg)
Shipping Box Dimensions (LWH)
11.75″ (30 cm) x 8.8″ (22.5 cm) x 11.6″ (29.5 cm)
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
0.7″ (18 mm) thick MDF cabinets with real wood veneer
0.75″ (20 mm) silk dome tweeters with neodymium magnets
2.75″ (70 mm) aramid fiber woofers with advanced voice coils
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. The HD3 cabinet contains tuned, front-port slots.
The HD3 cabinets are available in several handsome finishes, including a walnut veneer as well as satin black and glossy white 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.
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.
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 all Audioengine speaker systems.
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.
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-range wireless.
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 bit, 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 bit 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.
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.
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.
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.
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.