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Official product information provided by Arylic+
The following product descriptions, specifications and images are provided by the manufacturer.
Arylic BK501 and BK651 are high-performance passive HiFi bookshelf speakers designed for stereo systems, desktop audio setups, and custom home listening environments.
Featuring a Heil Air Motion Transformer (AMT) tweeter, fiberglass mid-woofer driver, and carefully engineered cabinet design, BK501/BK651 deliver detailed high frequencies, natural vocals, powerful midrange, and controlled bass performance.
Available in two sizes, BK501 and BK651 allow listeners to choose the ideal speaker size for different room environments and amplifier systems.
Why it stands out
Heil AMT Tweeter for Detailed High Frequencies
BK501/BK651 use an Air Motion Transformer tweeter design to deliver fast response and detailed high-frequency reproduction.
- Extended treble response up to 40kHz
- Low distortion high-frequency performance
- Wide 180° sound dispersion
- Clear vocal and instrument details
Fiberglass Mid-Woofer for Balanced Sound
The fiberglass mid-woofer provides a combination of strength, responsiveness, and controlled bass performance.
- Natural midrange reproduction
- Powerful low-frequency response
- Reduced distortion
- Improved driver stability
Engineered Cabinet Design
The cabinet structure is designed to reduce unwanted resonance and improve sound clarity.
- Thick MDF cabinet construction
- Optimized internal volume
- Rear bass reflex design
- Stable speaker performance
Flexible HiFi Speaker Upgrade
BK501/BK651 are designed as versatile passive speakers for different stereo systems.
Compatible with:
- Integrated amplifiers
- Streaming amplifiers
- Desktop HiFi systems
- Custom stereo setups
Best for
- Desktop HiFi systems
- Bookshelf stereo setups
- Small to medium listening rooms
- Music listening systems
- Users building passive speaker setups
Not ideal for
- Users looking for wireless Bluetooth speakers
- Users wanting built-in amplification
- Users without a compatible amplifier
- Users looking for a compact portable speaker
EMiUZEK Buying Notes
- Arylic BK501/BK651 are passive speakers and require an external amplifier.
- Speaker impedance is 4Ω, so choose an amplifier that supports compatible speaker loads.
- BK501 and BK651 differ mainly in woofer size, cabinet size, and power handling.
- For the best performance, use a quality stereo amplifier with sufficient output power.
FAQ
Do Arylic BK501 and BK651 include an amplifier?
No.
BK501 and BK651 are passive bookshelf speakers and require an external amplifier.
Typical setup:
Amplifier → BK501/BK651 → Music Playback
What is the difference between BK501 and BK651?
The main difference is speaker size and power capability.
| Model | Woofer Size | Power Handling |
|---|---|---|
| BK501 | 5 inch | 40W / 80W |
| BK651 | 6.5 inch | 50W / 100W |
BK651 provides stronger low-frequency output and is better suited for larger rooms.
What amplifier power is recommended for BK501/BK651?
Both models work with amplifiers suitable for 4Ω speakers.
An amplifier output above 30W is recommended for optimal performance.
What type of music is suitable for Arylic bookshelf speakers?
BK501/BK651 are suitable for a wide range of music styles including:
- Vocal music
- Jazz
- Classical
- Rock
- Pop
- Electronic music
Can BK501/BK651 be used for desktop audio?
Yes.
Their compact bookshelf design makes them suitable for desktop HiFi systems when paired with a suitable amplifier.
Can these speakers be used in a home theater system?
Yes.
They can be used as front or stereo speakers in a compact home theater setup with a suitable amplifier or AV receiver.
Are BK501 and BK651 suitable for beginners?
Yes.
They are passive speakers with standard speaker connections, but users need a compatible amplifier.
HOW TO CONNECT
Stereo Amplifier Setup
Source icon: amplifier
Source: Integrated Amplifier / Streaming Amplifier
Connection: Speaker Cable
Target icon: speakers
Output: Arylic BK501/BK651
Note: Build a traditional passive stereo system.
Streaming Amplifier Setup
Source icon: streaming amplifier
Source: Arylic A50+ / LA50 / B50
Connection: Speaker Output
Target icon: speakers
Output: BK501/BK651
Note: Combine modern streaming features with passive HiFi speakers.
Desktop HiFi Setup
Source icon: computer / streamer
Source: Digital Audio Source
Connection: Amplifier
Target icon: speakers
Output: BK501/BK651
Note: Create a compact desktop listening system.
Technical Specifications
Speaker Design
| Feature | Specification |
|---|---|
| Type | Passive 2-Way Bookshelf Speaker |
| Tweeter | Heil AMT Tweeter |
| Woofer | Fiberglass Mid-Woofer |
| Speaker Configuration | 2-Way |
| Impedance | 4Ω |
BK501
| Feature | Specification |
|---|---|
| Woofer Size | 5 inch |
| Power Handling | 40W / 80W |
| Frequency Response | 54Hz–40kHz |
| Sensitivity | 85dB |
| Dimensions | 300 × 170 × 253mm |
BK651
| Feature | Specification |
|---|---|
| Woofer Size | 6.5 inch |
| Power Handling | 50W / 100W |
| Frequency Response | 42Hz–40kHz |
| Sensitivity | 86dB |
| Dimensions | 350 × 204 × 289mm |
Cabinet
| Feature | Specification |
|---|---|
| Cabinet Material | MDF |
| Bass Design | Rear Bass Reflex |
| Terminal | Speaker Binding Posts |
Recommended System Setup
| Setup | Connection |
|---|---|
| BK501/BK651 + Streaming Amplifier | Streamer → Amplifier → Speakers |
| BK501/BK651 + Integrated Amplifier | Source → Amplifier → Speakers |
| Desktop HiFi System | PC/Streamer → Amplifier → Speakers |
What's in the box
- Arylic BK501 or BK651 Speaker Pair ×1
- Silicone Pads ×1 Set
- User Manual ×1
EMIUZEK Download Center
Access product manuals, technical documents, and support resources.
https://emiuzek.com/pages/download
Additional Product Content
Arylic BK501 vs BK651
| Feature | BK501 | BK651 |
|---|---|---|
| Product Position | Compact HiFi Bookshelf Speaker | Larger Bookshelf HiFi Speaker |
| Woofer Size | 5 inch | 6.5 inch |
| Tweeter | Heil AMT | Heil AMT |
| Impedance | 4Ω | 4Ω |
| Power Handling | 40W / 80W | 50W / 100W |
| Frequency Response | 54Hz–40kHz | 42Hz–40kHz |
| Best Use | Desktop / smaller rooms | Larger rooms / stronger bass |
What's in the box, manuals and downloads+
Shipping, warranty and returns+
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Official Warranty Support
All products sold by EMIUZEK are genuine products with manufacturer warranty support.
Our HiFi specialists provide assistance with compatibility, setup, and technical questions.
Easy Returns
Eligible returns are available according to our return policy.
Please contact EMIUZEK before returning any product so we can provide assistance.
C
Chloe Bennett Fantastic passive Hi‑Fi speakers! Clear detailed treble, full vocals and powerful bass. Love the wide soundstage and stylish wooden design. Highly recommend.
M
Matthew Taylor These Arylic BK501 bookshelf speakers sound incredible! The Heil AMT tweeter delivers crisp, bright highs up to 40kHz, while the 6.5‑inch mid‑woofer offers rich midrange and punchy, distortion‑free bass. Solid build with premium brown finish, perfect for my home Hi‑Fi system.