The “Next Gen” train keeps rolling at Audioengine, and this time it’s the HD3’s turn to feature some meaningful changes. Hot on the heels of the HD4 Next Gen we just reviewed—and not long after the A2+ Next Gen showed up in that unmistakable Matte Orange finish—the new Audioengine HD3 Next Gen brings some real-world improvements to one of the brand’s most popular desktop speakers.
First launched in 2016, the HD3 earned its place on countless desks for its compact form, easy setup, and warm, punchy sound. Now it returns with a USB-C input and dedicated 24-bit DAC for more accurate digital playback—no software, no app, no Wi-Fi headaches. Just plug in, pair up, and get back to work. Or don’t.
Technology and Specifications: What’s Inside the HD3 Next Gen
The Audioengine HD3 Next Gen (also known as the A2-HD) stays true to the original design while refining the internal architecture for better performance and modern connectivity. At its core is a Class A/B amplifier—15 watts RMS per channel into 4 ohms, with 30 watts peak per channel (60W total peak output, AES rated). This isn’t digital Class D power disguised as something more refined; it’s real analog amplification that preserves warmth and dynamics in a compact desktop format.
The onboard DAC is a 24-bit TI PCM5102A, connected via USB-C for direct digital audio from Mac, PC, and compatible mobile devices. By bypassing your computer’s internal sound card, the HD3 Next Gen aims to deliver cleaner, more detailed playback with lower distortion and better channel separation.
Audioengine has kept its proven formula in place: 2.75-inch aramid fiber woofers handle the low-end, while 0.75-inch silk dome tweeters cover the highs. The drivers are housed in real wood cabinets—not MDF—available in Satin Black, Real Walnut Veneer, and Hi-Gloss Piano White finishes.
On the wireless front, the HD3 Next Gen upgrades to Bluetooth 5.3 with support for aptX HD, AAC, and SBC codecs. An external antenna improves range and stability, making high-resolution streaming from phones and tablets easy and reliable.
Wired inputs include USB-C, RCA, and a 3.5mm stereo mini-jack, while outputs include RCA variable line-out and a front-mounted headphone jack. The headphone amp is built around the OPA2134 op-amp, delivering 380mW into 32 ohms—more than enough for most headphones outside of demanding planar and high impedance dynamic models. Sorry Audeze and HiFiMAN.
In terms of technical performance, the HD3 Next Gen boasts a signal-to-noise ratio of over 95 dB, total harmonic distortion plus noise under 0.05%, and crosstalk below 50 dB. Frequency response is rated at 65 Hz to 22 kHz (±1.5 dB)—plenty of extension for near-field listening without needing a subwoofer for most setups.
Power input is universal, with 110-240V auto-switching at 50/60 Hz, making it a true plug-and-play system wherever you are.
Building a Compact Hi-Fi System Around the HD3 Next Gen: Big Sound, Small Footprint
Let’s get one thing straight: the idea that desktop speakers can’t deliver satisfying bass is about as outdated as your college roommate’s Winamp playlist. In a nearfield setup, the HD3 Next Gen actually benefits from proximity—you’re sitting just a few feet away, so detail, imaging, and bass impact all hit differently than in a traditional living room.
Want more low-end grunt? That’s where compact subs from Audioengine, REL, and SVS come in. Models like the Audioengine S6 or REL Tzero MKIII are small enough to tuck under your desk or even perch beside your rig without stealing legroom. Pair one with the HD3 Next Gen, and you’ve got a full-range system that punches far above what most desktop setups deliver.
And yes—invest in stands. Your ears aren’t magically aligned with the drivers just because you’re sitting down. The Audioengine DS1M stands ($39 at Amazon) angle the speakers perfectly for desktop listening and isolate them from your desk, tightening bass and cleaning up the mids. It’s a small fix with a big payoff.
Audioengine doesn’t just send you a box of parts and wish you luck. The HD3 Next Gen ships with enough cables to get two systems up and running—an underrated detail if you’re juggling a laptop and desktop, or want to set up in more than one spot. The included 2-meter speaker cable gives you flexibility without having to rearrange your entire desk.
Audioengine S6 Compact Wireless Subwoofer: Powerful Bass in a Desktop-Friendly Design
The Audioengine S6 is small enough to disappear under your desk but powerful enough to make you wonder where all that low-end is coming from. Standing just 10 inches tall and weighing in around 15 pounds, it houses a 6-inch front-firing woofer in a sealed box. It’s tuned for tight, accurate bass—not bloated theater rumble—and it hits as low as 33Hz, which is impressive for something this size. It’s exactly what you want in a nearfield setup: fast, controlled, and free of boom.
The Class D amp inside pushes 210 watts peak (140W RMS), giving it plenty of headroom even at lower crossover points. Speaking of which, you’ve got a continuously variable crossover from 40–130Hz, so you can blend it into your system instead of just slapping it on the bottom end. The phase switch (0/180°) helps with that too, depending on where you place it in your room.
Connectivity is flexible. You get 3.5mm mini-jack and stereo/LFE RCA inputs, so it’ll work with everything from a simple desktop DAC to a turntable setup or a small AV system. And here’s the part that makes the S6 genuinely smart: it can connect to two systems at once. Got a turntable setup and a laptop rig in the same room? No cable swapping required.
Now, if you’re wondering about wireless, here’s the good news: while the S6 doesn’t have Wi-Fi or Bluetooth built in, it’s fully compatible with Audioengine’s W3 Wireless Receiver/Transmitter Kit ($149 at Amazon).
Plug the transmitter into your source (say, the HD3 Next Gen’s subwoofer output), and the receiver into the S6. Just like that, you’ve got a 2.4 GHz wireless connection with dynamic channel switching for stable, lag-free performance. No drivers, no apps—just clean bass without the cable mess.
Bonus: the S6 includes an auto-sensing standby mode, so it only powers on when it detects a signal. No need to flip switches every time you cue up music or jump into a game.
The Bottom Line
The Audioengine HD3 Next Gen is still one of the best plug-and-play desktop speaker systems under $400—especially if you value real materials, warm sound, and idiot-proof setup. Add the S6 subwoofer (wired or wireless with the W3 kit), and you’ve got a compact 2.1 system that delivers full-range performance without the clutter or complexity of a traditional stereo rig.
That said, there are a few limitations. There’s no HDMI ARC or eARC, no companion app, and no built-in streaming platform to fuss with. If you’re looking for a smart speaker alternative or multiroom control from your phone, this isn’t it. And while the onboard 24-bit DAC is solid for casual listening, audio purists might prefer using a dedicated dongle DAC or external DAC from a smartphone or laptop to squeeze out every last bit of resolution.
Still, for those who want high-quality desktop audio without diving down a rabbit hole of settings, updates, and blinking lights, the HD3 Next Gen system—especially with the S6—is a clean, focused solution that just works.
Where to buy:
Related Reading:
- Audioengine HD4 Next Gen Review: Bluetooth 5.3 And AptX Upgrades, But Is It Enough?
- Audioengine A2+ Next Gen Anniversary Edition Arrives In Matte Orange — Because Your Desk Speakers Weren’t Loud Enough Already
- Audioengine’s A2+ Home Music System Is Finally Getting Some Important Upgrades
- Audioengine’s B1 Next Gen Bluetooth Receiver Adds Bluetooth AptX Adaptive Support To Vintage Amps
