Short answer: the Focal Alpha 50 EVO. It ranks #34 of 58 powered bookshelf speakers by sound quality at $308; the Audioengine A5+ Classic ranks #38 and costs $399, so there is not much of a tradeoff to weigh.
What the Focal Alpha 50 EVO offers: The available response trace suggests reasonably smooth on-axis and listening-window behavior, with Spinorama narrow-band-deviation values of 0.448 and 0.366 respectively. With a subwoofer its calculated preference score is 5.05, and the rear shelving controls provide some useful room and placement adjustment. Watch for: The only Spinorama data is a low-quality graph digitization rather than a Klippel measurement, so the extreme calculated bass and sound-power results should not be taken literally. That limited dataset produces a very low 0.40 full-range preference score, weak predicted in-room smoothness, and unusually inconsistent directivity. Independent high-quality measurements are still needed.
What the Audioengine A5+ Classic offers: CEA2034 spinorama shows a reasonably flat response outside of the upper bass. Internal Class AB amplification (50W RMS, 75W peak) with a linear power supply drives a 5” Kevlar woofer and 0.75” tweeter. Watch for: A valley in the upper bass (200-400Hz) recesses that range, and a distortion peak shows up around 800-900Hz even at 86dB SPL. Off-axis response doesn’t track the on-axis curve well through the crossover, suggesting the waveguide isn’t fully optimized. Resonances appear at 900Hz and 4.4kHz.
Buy the Focal Alpha 50 EVO. It ranks higher for sound quality than the Audioengine A5+ Classic and costs less, so there is no real case for the other one.
Specifications Side By Side
| Focal Alpha 50 EVO | Audioengine A5+ Classic | |
|---|---|---|
| Price | $308.00 | $399.00 |
| Ranked | #34 of 58 in Medium Size Powered Bookshelf Speakers | #38 of 58 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) | 10.9"H x 7.2"W x 9.7"D (276.2 x 182.6 x 247.6 mm) |
| Frequency Response | 45 Hz - 22 kHz (+-3 dB) (Manufacturer specified) | 50Hz - 22kHz (+/-1.5dB) (Manufacturer specified) |
| Inputs | XLR, TRS, RCA | - |
| Weight | 13.2 lbs / 6.0 kg each | 15.4 lbs / 7 kg (left/powered), 9.7 lbs / 4.4 kg (right) |
| Drivers | 5" (127mm) woofer | 5" Kevlar woofer, 0.75" silk dome tweeter |
| App | No | No |
| Bluetooth | No | - |
| EQ | Yes (Room adjustment) | No |
| Output Power | 60w Per Speaker | 50W RMS / 75W peak |
| Bass Extension (-3dB) | - | 68Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | - | 50Hz (measured, Audio Science Review) |
| DSP | - | No |
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Prices on this page were last checked August 24, 2026 at 6:53 AM 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: $308.00 Amazon eBay
Pros: The available response trace suggests reasonably smooth on-axis and listening-window behavior, with Spinorama narrow-band-deviation values of 0.448 and 0.366 respectively. With a subwoofer its calculated preference score is 5.05, and the rear shelving controls provide some useful room and placement adjustment.
Cons: The only Spinorama data is a low-quality graph digitization rather than a Klippel measurement, so the extreme calculated bass and sound-power results should not be taken literally. That limited dataset produces a very low 0.40 full-range preference score, weak predicted in-room smoothness, and unusually inconsistent directivity. Independent high-quality measurements are still needed.
Full Focal Alpha 50 EVO review and specifications →
| App | No |
|---|---|
| Bluetooth | 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) |
| Inputs | XLR, TRS, RCA |
| Output Power | 60w Per Speaker |
| Weight | 13.2 lbs / 6.0 kg each |
- Links
- Reviews, Comparisons and Sound Samples
- Independent Measurements (spinorama.org; low-quality graph digitization)
- DSAUDIO.review: DSAUDIO.review Focal Alpha 50 EVO vs Adam Audio T5V sound.DEMO More from DSAUDIOreview →
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- Reddit Search for Focal Alpha 50 EVO Review
- Head-to-Head Comparisons
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Audioengine A5+ Classic: $399.00 Amazon Bhphotovideo eBay
Pros: CEA2034 spinorama shows a reasonably flat response outside of the upper bass. Internal Class AB amplification (50W RMS, 75W peak) with a linear power supply drives a 5” Kevlar woofer and 0.75” tweeter.
Cons: A valley in the upper bass (200-400Hz) recesses that range, and a distortion peak shows up around 800-900Hz even at 86dB SPL. Off-axis response doesn’t track the on-axis curve well through the crossover, suggesting the waveguide isn’t fully optimized. Resonances appear at 900Hz and 4.4kHz.
Full Audioengine A5+ Classic review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 50Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 68Hz (measured, Audio Science Review) |
| DSP | No |
| Dimensions | 10.9"H x 7.2"W x 9.7"D (276.2 x 182.6 x 247.6 mm) |
| Drivers | 5" Kevlar woofer, 0.75" silk dome tweeter |
| EQ | No |
| Frequency Response | 50Hz - 22kHz (+/-1.5dB) (Manufacturer specified) |
| Output Power | 50W RMS / 75W peak |
| Weight | 15.4 lbs / 7 kg (left/powered), 9.7 lbs / 4.4 kg (right) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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