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Description
Audioengine HD3 2-Way Wireless Bookshelf Speakers (Pair, Walnut)Built In 15W per Channel Amplifiers 2 Way, 2 Channel, Bass Reflex Design 2. 75" Kevlar Woofer 0. 75" Silk Dome Tweeter 65 Hz to 22 kHz Frequency Response Bluetooth with aptX Connectivity Stereo RCA, 1 8", micro USB Inputs Enjoy your audio from nearly any source with this pair of walnut Audioengine HD3 2 Way Wireless Bookshelf Speakers . They feature Bluetooth with aptX for wireless connectivity, stereo RCA and 1 8" inputs for traditional wired
- Built-In 15W per Channel Amplifiers
- 2-Way, 2-Channel, Bass-Reflex Design
- 2.75" Kevlar Woofer
- 0.75" Silk Dome Tweeter
- 65 Hz to 22 kHz Frequency Response
- Bluetooth with aptX Connectivity
- Stereo RCA, 1/8", micro-USB Inputs
Enjoy your audio from nearly any source with this pair of walnut Audioengine HD3 2-Way Wireless Bookshelf Speakers . They feature Bluetooth with aptX for wireless connectivity, stereo RCA and 1/8" inputs for traditional wired devices, and a micro-USB input for a dedicated input from your computer. The HD3 has a 2-way design with a built-in 15W per channel amplifier. Each speaker sports a 2.75" Kevlar woofer and a 0.75" silk dome tweeter.
- No Missed Connections
- Connect to the HD3 any way you like: wirelessly or wired, digital or analog. Stream your music library, TIDAL, Spotify, Pandora, YouTube, etc. to the HD3 from just about anywhere in your house (within 100') without dropouts. Wireless setup is designed for simplicity and only takes about a minute. And if you're using the HD3 on your desktop, connect it with a USB cable. The USB input bypasses your computer's built-in headphone jack for an enhanced listening experience. If you're not keen on USB or wireless, you can still use any stereo RCA or 1/8" audio cable to connect.
- Expandability
- The HD3 is expandable, so if you want deeper bass, just connect your subwoofer.
- Plug in Your Headphones
- The HD3 includes a dedicated headphone output so you can listen without waking the neighbors. Its headphone amplifier is designed to deliver quality sound that drives even the most demanding headphones.
- Retro-Forward Design
- The HD3 features aluminum trim accents and detachable magnetic grilles designed to blend with any decor.
- Built-In Amplifiers
- Built-in power amplifiers save space and eliminate the need to connect the HD3 to a stereo receiver or external power amp. Simply plug the left speaker into a power outlet and connect the included speaker wire from the left to the right speaker. All internal components of the HD3 are designed and tuned together for a more uniform sound than traditional separate speakers and amplifier.
- Bluetooth and aptX
- The HD3 is designed to easily connect to any of your devices that have Bluetooth, but for enhanced sound quality, use a device that supports Bluetooth aptX. For Apple devices that don't have aptX, such as the iPad or iPhone, Apple generally uses the AAC codec. It sounds good as well, and you'll get the extra benefit of the upsampling 24-bit DAC.
- Extended Wireless Range
- Through signal management circuitry and antenna tuning, the HD3 offers a solution that has up to three 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 AKM AK4396A DAC, which is designed for low-noise and high-fidelity. The AK4396A 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 AK4396A, 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 low noise and low distortion characteristics with a noticeable improvement over other Bluetooth devices.
- Integrated Design
- The speaker cabinets, drivers, bass port designs, amplifiers, and passive crossovers are all tuned together specifically for the HD3. This is designed to provide for a more efficient system that requires less power than passive speakers and a separate integrated amplifier or similar A/V components.
- HD3 Headphone Amplifier
- The HD3 contains a headphone amplifier based on the OPA2134 low-noise opamp. This amp is designed to provide low-impedance, high-fidelity audio and a 2V output, which can drive a wide range of headphones.
- Amplifier Design
- The amplifiers in the HD3 are located in the left speaker and are a class A/B analog monoblock design. This is a more traditional speaker/amplifier configuration, which is designed to provide quality audio and greater flexibility. All circuit boards for the power and preamp sections are vertically mounted for enhanced mechanical shock protection.
- Driver Designs
- The HD3 uses ferrofluid-cooled silk dome tweeters with neodymium magnets. Silk tweeters are fashioned to hold up well under high power, and the edge-driven design gives a smooth response. The woofers are Kevlar-woven glass-aramid composite with rubber surrounds. Kevlar is designed for strength, so the woofer can retain its shape when being driven at high levels.
- Floorstand Mountable
- The HD3 features threaded brass inserts to secure them to floorstands.
UPC: 852225007032
| Speaker Design | 2-way powered speakers |
| Configuration | 2-channel bass-reflex |
| Amplifier Type | Dual analog class A/B monolithic |
| Speaker Power | 15 watts RMS per channel, AES 30 watts peak per channel, AES |
| Drivers | 1 x 2.75" (7 cm) Kevlar woofer per speaker 1 x 0.75" (1.9 cm) silk dome tweeter with a neodymium magnet per speaker |
| Frequency Response | 65 Hz to 22 kHz, ±2 dB With Bass Reduction Switch Selected: 100 Hz to 22 kHz, ±2dB (-5 dB down) |
| Input Impedance | 5 kohms |
| Input | 1 x Stereo RCA 1 x 1/8" (3.5 mm) stereo 1 x micro-USB |
| Output | 1 x Variable stereo RCA 1 x 1/8" (3.5 mm) headphone |
| Wireless Connectivity | Bluetooth 4.0 audio |
| USB Specifications | Compatibility: USB 1.1 or above Internal D/A Converter: AKM AK4396A Input Bit Depth: 24-bits, upsampled Input Data Rate: 44.1 kHz / 48 kHz |
| Bluetooth Specification | Internal D/A Converter: AKM AK4396A Input Bit Depth: 24-bits, upsampled Supported Codecs: aptX, AAC, SBC Operation Range: Up to 100' (30 m) typical Input Data Rate: Determined by Bluetooth Latency: 30 ms |
| Protection | Output current limiting Thermal over-temperature Power on/off transient protection |
| Finish | Walnut wood veneer |
| Construction Material | 0.7" (18 mm) thick MDF cabinets with wood veneer |
| Environmental Requirements | Operating Temperature: 32 to 95°F (0 to 35°C) Non-Operating Temperature: -4 to 113°F (-20 to 45°C) Relative Humidity: 5 to 95% non-condensing |
| Power Requirement | 110 to 240 VAC, 50/60 Hz, auto-switching |
| Power Consumption | Idle: 10 W Mute: 6 W Sleep: 4 W |
| Dimensions (W x H x D) | 4.25 x 7 x 5.5" (10.8 x 17.8 x 14 cm) per speaker |
| Weight | Left Speaker: 4 lb (1.8 kg) Right Speaker: 3.4 lb (1.5 kg) |
| Packaging Info | |
|---|---|
| Package Weight | 10.95 lb |
| Box Dimensions (LxWxH) | 11.9 x 11.7 x 8.9" |
In the Box
Audioengine HD3 2-Way Wireless Bookshelf Speakers (Pair, Walnut)
- 2 x Grilles
- 5' Mini-Jack Audio Cable
- 5' USB Cable
- 6.5' 16 AWG Speaker Wire
- Antenna
- Microfiber Speaker Bags
- Microfiber Cable Bag
- Microfiber Power Supply Bag
- Power Supply
- AC Power Cable
- Limited 3-Year Warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Comfy and Warm
Size: Women 6.5-7.5, Color: Raisin
I'm very happy with these Original Slipper Socks. I normally wear a 6 1/2, so got these in XS/6 1/2-7 1/2. They are a little long on my feet, but they'll do. I'd rather have them be a little long than a little short, and perfectly sized slippers seem almost impossible to find these days. These slipper socks have a nice, comfy wide toe box, and the cushioned sole is soft, warm, and comfy. The suede on the bottom of the sole make these quiet and very comfy to wear around the house. The wool sock uppers are not itchy, but as comfy as a pair of warm socks.
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Reviewed in the United States on March 2, 2026
★★★★★ 5
Perfect for cool weather ...
Size: 12.5-13.5 Women/10.5-11.5 Men, Color: Light Grey Ragg Wool
I see a lot of complaints about fit and outdoor use of these ... I mean, these are slipper socks for indoor use! These are not shoes! If you want to walk outside in the snow, put on shoes or boots and then go outside ...
I have two pair of these and they are great! I really like the real leather soles and foam insole, instead of the cheap plastic soles that are sold on most house shoes ... They were a little tight on my ankles when new, but they relaxed a bit and fit perfectly now.
These are perfect for letting the TV watch you, sauntering, meandering, posing, consuming hot beverages, midnight strolls through the house, napping and all sorts of other indoor inactivity ...
It has been a few years, and I must say, my Acorn's are still working strong. It is about 60 degrees inside, and I'm working in the garage on a cold concrete slab. The red stripes look especially special with my Adidas sweat pants.
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Reviewed in the United States on December 29, 2018
★★★★★ 4
Cozy but...
Size: Medium, Color: Light Grey Cotton Twist, Size: Medium, Color: Light Grey Cotton Twist
These slipper socks are nice but could be nicer. The sock portion does Not have a heel; they are tube socks with a footpad sewn on. This means there is a little tightness getting your foot past the turn and then you end up with a roll of sock over your upper foot. Once that is all made comfortable, you are good to go.
I wear mine indoors and out for short trips to the patio and backyard. The sole material looks to be durable enough to last more than one season with this type of use. The footbed itself has just the right amount of padding: not so much that the foot can slid to the side and not so thin you can feel the joints in a tile floor ;-)
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Reviewed in the United States on September 12, 2025
★★★★★ 3
Size down. Thin soles are cold.
Size: Small, Color: Light Grey Ragg Wool
The ragg wool is warm and they seem well made.
The foot sizing is very long. I'm a 7.5 to 8 always. The choice was 6-7 or 8-9. The 8-9 is more than 2 inches too long. I'm afraid they will cause a fall. Also know that the cushioning is not as pictured. It is only half the depth of the leather sides. When you stand on anything but carpets, you feel the cold floor. This is all due to the gravity on earth.
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Reviewed in the United States on December 19, 2025
★★★★★ 5
Best slippers, beware Sizes may be off.
Size: Medium, Color: Charcoal Ragg Wool
I LOVE these sock moccasins shoes or whatever they are.
I purchased 2 pair in different colors and the upper sock material was a significantly different material in its weave density and stretchyness. (blue more thin and stretchy than grey). I wear blue ones indoors, and the grey ones stay in the car for long car trips. Sizing: both pair I bought say 7-9mens 9-10women -- In how they actually fit they are 9-10 mens. The soles are leather with a thin bit of soft foam, in winter I can walk around in snow in them and the cold doesnt get through. Not that you should walk in snow with them since the leather is like a suede so it gets gross. You can put them through the washing machine and it makes them look good as new.
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Reviewed in the United States on January 1, 2021
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