Short answer: the Focal Alpha 50 EVO. It ranks #51 of 100 powered bookshelf speakers by sound quality, rated 3.8/5, at $658. The Audioengine HD4 ranks #83, rated 3.2/5, at $429, $229 cheaper, which does not close the gap in sound quality.
The Focal Alpha 50 EVO is the better-sounding choice. Rear shelving controls and a conventional studio-monitor layout provide practical placement adjustment. It has an adjustable EQ, which the Audioengine HD4 lacks. Watch for: Basic shelving controls are less flexible than parametric room correction.
Why pick the Audioengine HD4: Compact powered cabinets, analog input options and RCA output can simplify a desktop stereo system. It keeps a wired aux input, which the Focal Alpha 50 EVO lacks. Watch for: The compact cabinets suit close desktop listening rather than a large-room system.
Buy the Focal Alpha 50 EVO. It is rated higher for sound quality, and the $229 you would save on the Audioengine HD4 does not close the gap.
Want more options? Browse the full Powered Home rankings.
Specifications Side By Side
| Focal Alpha 50 EVO | Audioengine HD4 | |
|---|---|---|
| Price | $658 per pair | $429.00 per pair |
| Ranked | #51 of 100 in Medium Size Powered Bookshelf Speakers | #83 of 100 in Medium Size Powered Bookshelf Speakers |
| Dimensions | 12.2”H x 9”W x 9.4”D (309.9 x 228.6 x 238.8 mm) | 9”H x 5.5”W x 6.5”D (228.6 x 139.7 x 165.1 mm) |
| Frequency Response | 45 Hz - 22 kHz (+-3 dB) (Manufacturer specified) | 60 Hz-20 kHz (-3dB) (Manufacturer specified) |
| Inputs | XLR, TRS, RCA | Bluetooth, Aux, RCA Input |
| Weight | 13.2 lbs (6.0 kg) each | 7.3 lbs (3.3 kg) |
| Drivers | 5” (127mm) woofer | 4” (102mm) woofer |
| App | No | No |
| Bluetooth | No | Yes |
| EQ | Yes (Room adjustment) | No |
| Amplifier Power | 60w Per Speaker | 50w RMS Per Speaker |
| Spinorama Preference Score | 1.04 | - |
| Spinorama Preference Score with Perfect Sub | 5.70 | - |
| XLR Input | Yes | No |
| RCA Input | Yes | Yes |
| TRS Input | Yes | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | Yes |
| Outputs | - | RCA variable output (subwoofer) |
| Bluetooth Codecs | - | SBC, AAC, aptX, aptX HD |
| Subwoofer Output | - | Yes |
Related Speaker Comparisons
How Focal Alpha 50 EVO compares with other leading options:
- Focal Alpha 50 EVO vs Genelec 8331A
- Focal Alpha 50 EVO vs Neumann KH120 MKII
- Focal Alpha 50 EVO vs Genelec 8030C
- Focal Alpha 50 EVO vs Neumann KH80 DSP
- Focal Alpha 50 EVO vs Dynaudio LYD 5
Prices on this page were last checked October 7, 2026 at 9:25 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Focal Alpha 50 EVO: $658 per pair Amazon eBay
Same family: the Focal Alpha 65 EVO (larger bookshelf, rated 4/5), the Focal Alpha 80 Evo (larger bookshelf, estimated 4/5) and the Focal Alpha Twin Evo (larger bookshelf, rated 3.8/5).
Pros: Rear shelving controls and a conventional studio-monitor layout provide practical placement adjustment.
Cons: Basic shelving controls are less flexible than parametric room correction. Careful placement is still important, especially near walls or on a desk.
Full Focal Alpha 50 EVO review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 60w Per Speaker |
| App | No |
| Aux Input | No |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 12.2”H x 9”W x 9.4”D (309.9 x 228.6 x 238.8 mm) |
| Drivers | 5” (127mm) woofer |
| EQ | Yes (Room adjustment) |
| Frequency Response | 45 Hz - 22 kHz (+-3 dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, TRS, RCA |
| Optical Input | No |
| RCA Input | Yes |
| Spinorama Preference Score | 1.04 |
| Spinorama Preference Score with Perfect Sub | 5.70 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 13.2 lbs (6.0 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Independent Measurements (spinorama.org)
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- Head-to-Head Comparisons
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Audioengine HD4: $429.00 per pair Amazon eBay
Same family: the Audioengine HD3 (smaller bookshelf, rated 3.2/5) and the Audioengine HD6 (larger bookshelf, ranked higher, rated 3.3/5).
Pros: Compact powered cabinets, analog input options and RCA output can simplify a desktop stereo system. Its modest footprint is useful where larger studio monitors are impractical.
Cons: The compact cabinets suit close desktop listening rather than a large-room system. A separate subwoofer adds cost and space if deeper bass is a priority.
Full Audioengine HD4 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 50w RMS Per Speaker |
| App | No |
| Aux Input | Yes |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD |
| Coaxial Input | No |
| Dimensions | 9”H x 5.5”W x 6.5”D (228.6 x 139.7 x 165.1 mm) |
| Drivers | 4” (102mm) woofer |
| EQ | No |
| Frequency Response | 60 Hz-20 kHz (-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | Bluetooth, Aux, RCA Input |
| Optical Input | No |
| Outputs | RCA variable output (subwoofer) |
| RCA Input | Yes |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | No |
| Weight | 7.3 lbs (3.3 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Audioengine HD4 vs Edifier R1700BT
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