Looking for a pair of bookshelf speakers that promise big sound without taking over your room?
First impressions
You’ll notice the AS-31’s unique wine-glass–inspired shape right away, and the matte black finish gives it a refined, modern look. The cabinets feel solid and well-made, so you get the sense these aren’t just styling exercises but speakers built to last.
Product specifications (at-a-glance)
This table breaks down the key specs so you can scan what matters most before digging into the details. Use it to quickly compare against other options or to confirm compatibility with your gear.
| Feature | Details |
|---|---|
| Product name | Powered Bookshelf Speaker, Active Bluetooth 5.3 – 80W RMS 2-Way Stereo / 3″ Aluminum Long-Stroke Woofer & 20 mm Silk Dome Tweeter, RCA + Optical Inputs, Sub-Out & Remote Wooden（AS-31Matte Black） |
| Power output | 80W RMS (Class-D amplifier) |
| Drivers | 3″ aluminum long-stroke woofer (bass/mid), 20 mm silk dome tweeter |
| Inputs | Bluetooth 5.3, RCA (wired), Optical (TOSLINK), Coaxial (included cable between speakers) |
| Subwoofer | Active subwoofer output (SUBOUT) with remote control adjustment |
| Remote | Wireless remote controls volume, input selection, sub volume |
| Cabinet | MDF wood, matte finish, hand-polished |
| Rear panel | Brushed aluminum alloy |
| Included accessories | Pair of speakers (right active, left passive), coaxial cable (2000 mm), power cord (1500 mm), remote (no batteries), speaker guide |
| Special notes | Left speaker is passive and must connect to the right active speaker; USB port is for firmware updates only |
| Color | Matte Black (may vary slightly due to lighting) |
Design & build
You’ll appreciate the tasteful balance between form and function in the AS-31’s design. The MDF cabinet with a hand-polished finish not only looks premium but also contributes to acoustic stability and reduced resonance.
Materials & finish
The matte finish and brushed aluminum rear panel give the speakers a higher-end feel than many budget bookshelf options. You’ll find the cabinets are tightly fitted, which helps keep the sound focused and reduces unwanted vibration.
Size & placement
These speakers are compact enough to sit comfortably on a desktop, bookshelf, or dedicated stands, so you can place them close for nearfield listening or farther back for a fuller room sound. You’ll want to give them a bit of space from walls to avoid bass bloat, but they’re flexible enough to work in a variety of setups.
Sound performance
You’ll get a well-balanced sound signature from the AS-31 that’s tuned for clarity across different genres. The combined use of an aluminum woofer and silk dome tweeter gives you a dynamic, detailed presentation without sounding overly bright or boomy.
Treble (tweeter)
The 20 mm silk dome tweeter yields smooth, extended highs that are pleasant for long listening sessions and won’t fatigue your ears. You’ll notice good detail retrieval for vocals, cymbals, and ambient cues, which helps when you’re watching movies or gaming.
Midrange (woofer handling mids)
The 3″ long-stroke aluminum woofer does a competent job with midrange duties, delivering vocals and guitars with clarity and presence. You’ll find that dialogue and vocal-centric tracks come through naturally, with enough resolution to hear subtle nuances.
Bass & low-end performance
Don’t expect subwoofer-level extension from the small 3″ drivers, but you will get punchy, controlled bass that suits pop, rock, and electronic music in small-to-medium rooms. You’ll appreciate the active subwoofer output when you want to add deeper, earth-shaking lows for movies or bass-heavy tracks.
Soundstage & imaging
For their size, the AS-31 can create an impressively coherent soundstage with reasonable instrument placement and separation. You’ll notice a satisfying center image for vocals and movie dialogue, especially when positioned and toe-in are dialed in.
Power & efficiency
The high-efficiency Class-D amplifier provides the 80W RMS total output, which gives you more than enough headroom for most living rooms and desktop setups. You’ll find the speakers can get loud without distortion, and the Class-D design keeps heat and power consumption under control.
Connectivity options
You’ll have plenty of ways to connect sources to these speakers, whether you prefer wireless convenience or wired fidelity. The mix of Bluetooth 5.3, RCA, optical, and a sub-out makes these speakers adaptable to both modern and legacy devices.
Bluetooth 5.3
Bluetooth 5.3 delivers a stable wireless connection with low latency and improved range over older versions, so you can stream from your phone, tablet, or laptop without frequent dropouts. You’ll appreciate easier pairing and more reliable performance for casual listening and streaming.
Wired inputs: RCA & optical
The RCA input lets you plug in analog sources like turntables (with a preamp) or older media players, while the optical input is perfect for digital sources like TVs, game consoles, and modern DACs. You’ll benefit from the optical connection for digital clarity and reduced interference in home theater setups.
Subwoofer output & USB
The dedicated sub-out is designed for active subwoofers and can be controlled via the remote, making it simple to create a 2.1 system for movies and music. The USB port is explicitly for firmware/system updates, so you won’t be able to use it as a general audio input.
Setup & usability
You’ll find setup straightforward, but there are a few details to get right to enjoy optimal performance. The included coaxial cable links the passive left speaker to the active right speaker, and the remote gives you hands-off control once everything is connected.
Remote control
The bundled remote lets you change volume, switch inputs, and adjust the subwoofer level from across the room, making day-to-day operation simple and convenient. You’ll want to keep a couple of AAA batteries on hand since they’re not included.
Wiring the passive left speaker
Make sure you connect the left passive speaker to the right active speaker using the provided 2000 mm coaxial cable; otherwise the left speaker won’t function. You’ll appreciate that this wiring method keeps the active electronics centralized and simplifies power routing.
Placement tips
For best results, position the speakers at ear level when seated and leave a little space from walls to manage bass response. You’ll get improved imaging and cleaner bass if you toe-in the speakers slightly so they point toward your listening position.
Subwoofer integration and 2.1 setups
If you want fuller bass for movies and large-room listening, connecting an active subwoofer transforms the AS-31 into a more cinematic 2.1 system. You’ll be able to control the sub volume via the remote, letting you dial in the low-end balance without walking back to the sub.
How the SUBOUT works
The SUBOUT feeds a subwoofer preamp-level signal, so your sub will handle its amplification and crossover. You’ll find it convenient that the system can drive the sub automatically while letting you fine-tune the sub level from the speaker remote.
Best practices for combining with a sub
Set the sub crossover and phase on the sub itself, then use the speaker remote to balance sub level to taste. You’ll achieve the smoothest integration by starting with the sub low and raising it until you hear a seamless blend with the satellites.
Use cases: where the AS-31 fits best
You’ll find these speakers are flexible and excel in several real-world scenarios, from desktop music playback to compact home theater setups. Below are common setups and what you can expect from the AS-31 in each role.
Desktop / nearfield listening
On a desk, the AS-31 provides punchy, detailed sound that improves music playback and gaming immersion. You’ll appreciate the compact footprint and Bluetooth convenience when you want quick access to streaming services.
TV / home theater (2.0 or 2.1)
For a TV setup, the optical input offers clean digital sound while the SUBOUT lets you add a sub for impactful movie bass. You’ll get clear dialogue and cinematic dynamics, and adding a sub transforms the system into a proper small-room theater.
Vinyl / turntables
If you run a turntable with a phono preamp, the RCA input will let you enjoy vinyl with improved clarity over built-in TV or laptop speakers. You’ll want a separate phono preamp or a turntable with built-in pre unless your turntable already provides line-level output.
Gaming & streaming
Gamers will enjoy the AS-31’s tight imaging and clear highs for environmental detail, while streamers get the convenience of Bluetooth and optical inputs for consoles. You’ll find the speakers responsive to fast transients, giving you a satisfying sense of immediacy.
Performance in real listening
You’ll notice these speakers perform above what their small size might suggest, delivering a musical presentation that’s engaging for a variety of material. Whether you listen to acoustic singer-songwriter tracks or synth-heavy electronic music, the AS-31 handles each with competence and character.
Listening to vocals and acoustic music
Vocals sit in a natural position and feel present without sounding forward or harsh. You’ll be able to hear subtleties like breath and room ambience that make acoustic performances feel alive.
Listening to electronic and bass-heavy music
Electronic music benefits from the tight low-mid response, though you’ll want a subwoofer for the deepest bass lines to feel truly authoritative. You’ll get punch and drive for rhythm-focused tracks without losing clarity in the midrange.
Movies and TV
Dialogue clarity is a highlight, and the tweeter’s smoothness keeps sibilance under control while preserving detail. You’ll appreciate the ability to add a sub for explosions and low-frequency effects that make movies feel immersive.
Comparisons and value
Compared to similarly priced bookshelf powered speakers, the AS-31 stands out with its sub-out and Bluetooth 5.3 support, as well as the unique cabinet styling. You’ll likely find comparable models that offer either Bluetooth or sub-out, but fewer that combine both with a remote-controlled sub level.
Strengths vs typical competitors
You get strong connectivity options and a refined design that many rivals don’t match at this price point. You’ll also appreciate the included remote and the simple 2.1 upgrade path—features often reserved for pricier systems.
Limits compared to higher-tier speakers
While the AS-31 punches above its size, you won’t get the same low-end extension or absolute detail retrieval as much larger, more expensive monitors. You’ll want to consider a dedicated sub or larger speakers if deep low-frequency authority is a priority.
Pros & Cons
This quick list helps you weigh the major selling points and potential drawbacks so you can decide if the AS-31 matches your priorities.
Pros:
- You’ll get 80W RMS total power for impressive loudness and headroom.
- Wireless Bluetooth 5.3 offers stable streaming and convenient connectivity.
- Sub-out with remote control simplifies achieving a true 2.1 setup.
- Clean, modern cabinet design with a premium finish that fits many rooms.
- Smooth silk dome tweeter and aluminum woofer provide balanced timbre.
Cons:
- The left speaker is passive and must be connected to the right active speaker, which may limit placement options.
- Small 3″ drivers limit deep bass; a subwoofer is recommended for very low frequencies.
- USB port is for firmware updates only and not an audio input, which may surprise some users.
Who should buy the AS-31
If you want a compact, attractive pair of powered bookshelf speakers with modern wireless connectivity and the option to add serious bass via a sub, these are a great fit for you. You’ll especially like the AS-31 if you have a small-to-medium room, use a desktop or TV setup, and want a plug-and-play experience with remote control.
Alternatives to consider
If you’re evaluating other choices, look at powered bookshelf speakers with larger woofers if low-end extension is a top priority. You’ll also find compact active monitors aimed at nearfield mixing that emphasize flat response over musical coloration if you’re doing critical listening.
Setup checklist
This quick checklist ensures you’ll get the most out of your AS-31 right away.
- Connect the provided coaxial cable from RIGHT (active) to LEFT (passive) speaker. You’ll need this for stereo playback.
- Plug the power cord into the active speaker and a wall outlet.
- Pair via Bluetooth 5.3 or connect your source with RCA/optical for best digital quality.
- Place speakers at ear level and toe them slightly toward your main listening position.
- If you add a sub, set the crossover and phase on the sub and use the remote to balance sub level.
Maintenance and firmware
You’ll want to keep the firmware up to date using the USB port when updates are released to maintain reliability and features. Regular dusting of the cabinet and occasional checks of cable connections will keep the speakers sounding and looking their best.
Tips to get the best sound
Small adjustments can make a big difference in how these speakers sound in your room.
- Try a bit of toe-in: You’ll often get a more focused image and improved clarity with slight toe-in toward your listening spot.
- Leave some breathing room: Give the speakers a few inches from rear walls to reduce bass buildup.
- Use speaker stands or isolation pads: You’ll reduce desk reflections and get clearer bass and imaging.
- Match levels with the sub: Start low on sub volume and raise it until bass integrates naturally rather than overpowering the satellites.
Warranty & support considerations
Be sure to check the warranty length and support options from the retailer or manufacturer when you purchase. You’ll want to confirm return policies in case the unit has any fitment issues with your room or specific gear.
Final thoughts
You’ll find the Powered Bookshelf Speaker AS-31 to be a compelling option if you want a compact system that emphasizes musical balance, modern connectivity, and the ability to expand into a 2.1 setup. The thoughtful blend of a silk dome tweeter, aluminum long-stroke woofer, Bluetooth 5.3, and remote-controlled sub output gives you a lot of flexibility and strong value for the money, especially if you plan to use the speakers for desktop listening, TV audio, or a small home theater. If adding deep bass is important to you, pair it with an active subwoofer and you’ll end up with a compact system that sounds much larger than its footprint.
Disclosure: As an Amazon Associate, I earn from qualifying purchases.
