Short answer: the Genelec 8331A on measured sound quality, the Audioengine A5+ Classic on price. The Genelec 8331A ranks #1 of 100 powered bookshelf speakers, rated 4.8/5, at $5,750. The Audioengine A5+ Classic ranks #36, rated 4.0/5, at $399, $5,351 cheaper.
What the Audioengine A5+ Classic does well: ASR’s A5+ Powered measurements give 4.59 standalone and 7.06 with an ideal subwoofer, with a 2.7dB midrange span. It keeps a wired aux input, which the Genelec 8331A lacks. The catch: The measured -3dB point is around 69Hz, and the upper-bass recession can reduce body in voices and instruments.
The Genelec 8331A is the more accurate, deeper-bass option. Erin’s Klippel measurements support its reference-monitor credentials: a 1.4dB response span from 300Hz to 5kHz, low listening-window and predicted-room irregularity, and preference scores of 6.57 standalone and 8.51 with an ideal subwoofer. Its measured preference score, a predictor of how neutral it sounds, is 6.57 against 4.59 for the Audioengine A5+ Classic. Its bass reaches about 49Hz before falling 3dB, against 68Hz for the Audioengine A5+ Classic. The catch: Expensive, with studio-oriented XLR connectivity rather than consumer streaming.
Buy the Audioengine A5+ Classic if the price matters more than sound quality. Buy the Genelec 8331A if sound quality matters more than the price.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| Audioengine A5+ Classic | Genelec 8331A | |
|---|---|---|
| Price | $399.00 per pair | $5,750 per pair |
| Ranked | #36 of 100 in Medium Size Powered Bookshelf Speakers | #1 of 100 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 68Hz (measured, Audio Science Review) | 49Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 50Hz (measured, Audio Science Review) | 39Hz (measured, Erin’s Audio Corner) |
| Dimensions | 10.9”H x 7.2”W x 9.7”D (276.2 x 182.6 x 247.6 mm) | 12”H x 7.4”W x 8.3”D (305 x 189 x 212 mm) |
| Frequency Response | 50Hz - 22kHz (+/-1.5dB) (Manufacturer specified) | 45Hz - 37kHz (-6dB) (Manufacturer specified) |
| Weight | 15.4 lbs (7 kg) (left/powered), 9.7 lbs (4.4 kg) (right) | 14.8 lbs (6.7kg) each |
| Drivers | 5” Kevlar woofer, 0.75” silk dome tweeter | Dual 130x65mm woofers; 90mm coaxial mid; 19mm tweeter |
| App | No | - |
| EQ | No | - |
| DSP | No | - |
| Amplifier Power | 50W RMS / 75W peak | 72W LF + 36W MF + 36W HF |
| Spinorama Preference Score | 4.59 | 6.57 |
| Spinorama Preference Score with Perfect Sub | 7.06 | 8.51 |
| Subwoofer Output | Yes | - |
| Outputs | RCA variable output (subwoofer) | - |
| Inputs | RCA, Aux | XLR, AES/EBU |
| XLR Input | No | Yes |
| RCA Input | Yes | No |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | Yes |
| Aux Input | Yes | No |
| Bluetooth | No | No |
| Maximum SPL | - | 100dB at 3m before protection (measured, Erin’s Audio Corner) |
Related Speaker Comparisons
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Prices on this page were last checked October 9, 2026 at 8:01 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
Audioengine A5+ Classic: $399.00 per pair Amazon B&H Photo Video eBay
Same family: the Audioengine A2+ (smaller bookshelf, rated 3.4/5).
Pros: ASR’s A5+ Powered measurements give 4.59 standalone and 7.06 with an ideal subwoofer, with a 2.7dB midrange span. The analog powered pair is straightforward to use without an external amplifier. The measured result supports a more capable tonal balance than its former low position suggested. Measured bass extension of 68Hz (-3dB).
Cons: The measured -3dB point is around 69Hz, and the upper-bass recession can reduce body in voices and instruments. The existing review reports crossover-region directivity errors and a distortion feature around 800-900Hz. The score does not make it a reference monitor, and adding a subwoofer cannot correct those midrange and off-axis issues.
Full Audioengine A5+ Classic review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 50W RMS / 75W peak |
| App | No |
| Aux Input | Yes |
| Bass Extension (-10dB) | 50Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 68Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| 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) |
| HDMI Input | No |
| Inputs | RCA, Aux |
| Optical Input | No |
| Outputs | RCA variable output (subwoofer) |
| RCA Input | Yes |
| Spinorama Preference Score | 4.59 |
| Spinorama Preference Score with Perfect Sub | 7.06 |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | No |
| Weight | 15.4 lbs (7 kg) (left/powered), 9.7 lbs (4.4 kg) (right) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
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Genelec 8331A: $5,750 per pair B&H Photo Video eBay
Same family: the Genelec 8341A (larger bookshelf, rated 4.8/5), the Genelec 8351B (larger bookshelf, rated 4.8/5), the Genelec 8361A (larger bookshelf, rated 4.8/5) and the Genelec 8381A (floorstanding, estimated 4.9/5).
Pros: Erin’s Klippel measurements support its reference-monitor credentials: a 1.4dB response span from 300Hz to 5kHz, low listening-window and predicted-room irregularity, and preference scores of 6.57 standalone and 8.51 with an ideal subwoofer. The coaxial mid/tweeter and concealed woofers maintain coherent radiation as listening position changes. Bass reaches -3dB around 48Hz, and GLM adds level, delay and room-response calibration. Measured bass extension of 49Hz (-3dB).
Cons: Expensive, with studio-oriented XLR connectivity rather than consumer streaming. The compact woofers still limit deep-bass output, and the review reports protection muting when pushed beyond its operating range. GLM calibration hardware is an additional purchase. Its excellent tonal score does not remove the need for a subwoofer or larger monitor at demanding levels.
Full Genelec 8331A review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 72W LF + 36W MF + 36W HF |
| Aux Input | No |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 49Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 12”H x 7.4”W x 8.3”D (305 x 189 x 212 mm) |
| Drivers | Dual 130x65mm woofers; 90mm coaxial mid; 19mm tweeter |
| Frequency Response | 45Hz - 37kHz (-6dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, AES/EBU |
| Maximum SPL | 100dB at 3m before protection (measured, Erin’s Audio Corner) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 6.57 |
| Spinorama Preference Score with Perfect Sub | 8.51 |
| TRS Input | No |
| USB Input | No |
| Weight | 14.8 lbs (6.7kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons