HD4-BLK, Wired/Bluetooth, Matte Black, 2.0 Channel Bookshelf Speakers
- SKU: 13955137
- Manufacturer: AUDIOENGINE
- MPN: HD4-BLK
- Availability: CONTACT US
Audioengine HD4 Black HOME MUSIC SYSTEM
Effortlessly fill any living space with the power of incredible, true stereo sound that brings your listening experience to life. An all-access pass to ALL of your music on any app or device, the HD4 offers wired or wireless connections including USB input from your computer, Bluetooth aptX-HD from your phone, or good old analog from that vintage turntable or prized tape deck.
- Audioengine HD4 Black HOME MUSIC SYSTEM
- W/ BLUETOOTH APTX-HD
- MADE FOR YOUR MUSIC
- PLAY YOUR MUSIC, YOUR WAY
- BOLD DESIGN THAT FITS IN
- WHY YOULL LOVE THEM
- AUDIOENGINE SIGNATURE SOUND
- HD4-BLK | Model
| GENERAL SPECIFICATIONS | |
| Type | Powered Bluetooth aptX HD speaker system |
| Amplifier Type | Class AB |
| Power Output | 120 W peak power total (30 W RMS / 60 W peak per channel), AES |
| Drivers | 4″ aramid fiber woofers 0.75″ silk dome tweeters |
| Inputs | 3.5 mm stereo mini-jack, USB, RCA L/R, 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 | 60 Hz-22 kHz ±1.5 dB |
| Input Impedence | 5K ohms unbalanced |
| Protection | Output current limiting, thermal over-temperature, power on/off transient protection |
| Power Consumption | Idle: 10W |
| BLUETOOTH SPECIFICATIONS | |
|
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) |
| USB SPECIFICATIONS | |
| 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 SPECIFICATIONS | |
| 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 |
| WEIGHTS AND MEASURES | |
| Dimensions (HWD) | Each speaker – 9″(23 cm) x 5.5″ (14 cm) x 6.5″ (16.5 cm) |
| Weight |
Left (active) – 7.2 lb (3.3 kg) Right (passive) – 5.4 lb (2.4 kg) |
| Total Shipping Weight | 10 lb (4.6 kg) |
| Shipping Box Dimensions (LWH) | 20″ (51 cm) x 13″ (33 cm) x 15.5″ (39 cm) |
| 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 |
| MATERIALS AND CONSTRUCTION |
0.7″ (18 mm) thick MDF cabinets with real wood veneer |
| 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. The P4 cabinet contains tuned, front-port slots. |
| FURNITURE GRADE FINISHES | The HD4 cabinets are available in several handsome finishes, including walnut veneers as well as satin black paint, offering options 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. |
| CUSTOM COMPONENTS | 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. |
| 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 all Audioengine speaker systems. |
| 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. |
| HIGH-QUALITY BLUETOOTH AUDIO |
The Bluetooth built into the HD4 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 HD4 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.
24 bit DAC |
| HD3 HEADPHONE AMPLIFIER |
The HD4 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. |
| SHIELDING | 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. |