Short answer: the Audioengine A5+ Classic. It ranks #27 of 65 powered bookshelf speakers by sound quality at $399; the Adam Audio A4V ranks #42 and costs $599.99, so there is not much of a tradeoff to weigh.
What the Audioengine A5+ Classic offers: ASR’s A5+ Powered measurements give 3.68 standalone and 6.15 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. Watch for: 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.
What the Adam Audio A4V offers: Compact monitor with onboard DSP, placement controls and room-correction integration. ASR’s Klippel data gives a -3dB point around 59Hz and preference scores of 3.02 standalone and 5.43 with an ideal subwoofer. Its adjustment facilities are useful when placement or tonal correction is needed. Watch for: A small average-deviation figure hides a major localized response irregularity: the selected measurement spans 10.8dB from 300Hz to 5kHz, and listening-window narrow-band deviation is 0.547. The native response should therefore not be called smoothly neutral. Correction potential is not the same as stock performance, and analog audio inputs mean a separate interface is needed for USB sources.
Buy the Audioengine A5+ Classic. It ranks higher for sound quality than the Adam Audio A4V and costs less, so the other one has nothing left to offer.
Want more options? Browse the full Powered Home rankings.
Specifications Side By Side
| Audioengine A5+ Classic | Adam Audio A4V | |
|---|---|---|
| Price | $399.00 per pair | $1,199.98 per pair |
| Ranked | #27 of 65 in Medium Size Powered Bookshelf Speakers | #42 of 65 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 68Hz (measured, Audio Science Review) | - |
| Bass Extension (-10dB) | 50Hz (measured, Audio Science Review) | - |
| Dimensions | 10.9"H x 7.2"W x 9.7"D (276.2 x 182.6 x 247.6 mm) | 10.6H x 6.2W x 8.7D in |
| Frequency Response | 50Hz - 22kHz (+/-1.5dB) (Manufacturer specified) | - |
| Weight | 15.4 lbs (7 kg) (left/powered), 9.7 lbs (4.4 kg) (right) | 12.8 lbs (5.8 kg) each |
| Drivers | 5" Kevlar woofer, 0.75" silk dome tweeter | X-ART folded-ribbon tweeter, 4" MLM woofer |
| App | No | - |
| EQ | No | - |
| DSP | No | - |
| Amplifier Power | 50W RMS / 75W peak | 130W RMS each |
| Spinorama Preference Score | 3.68 | 3.02 |
| Spinorama Preference Score with Perfect Sub | 6.15 | 5.43 |
| Subwoofer Output | Yes | - |
| Outputs | RCA variable output (subwoofer) | - |
| Enclosure | - | 2-way active, dual front ports |
| Inputs | - | XLR and RCA; Ethernet for control |
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Prices on this page were last checked September 16, 2026 at 12:41 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
Pros: ASR’s A5+ Powered measurements give 3.68 standalone and 6.15 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 →
| Amplifier Power | 50W RMS / 75W peak |
|---|---|
| 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) |
| Outputs | RCA variable output (subwoofer) |
| Spinorama Preference Score | 3.68 |
| Spinorama Preference Score with Perfect Sub | 6.15 |
| Subwoofer Output | Yes |
| Weight | 15.4 lbs (7 kg) (left/powered), 9.7 lbs (4.4 kg) (right) |
- Links
- Reviews, Comparisons and Sound Samples
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Adam Audio A4V: $1,199.98 per pair B&H Photo Video eBay
Pros: Compact monitor with onboard DSP, placement controls and room-correction integration. ASR’s Klippel data gives a -3dB point around 59Hz and preference scores of 3.02 standalone and 5.43 with an ideal subwoofer. Its adjustment facilities are useful when placement or tonal correction is needed.
Cons: A small average-deviation figure hides a major localized response irregularity: the selected measurement spans 10.8dB from 300Hz to 5kHz, and listening-window narrow-band deviation is 0.547. The native response should therefore not be called smoothly neutral. Correction potential is not the same as stock performance, and analog audio inputs mean a separate interface is needed for USB sources.
Full Adam Audio A4V review and specifications →
| Amplifier Power | 130W RMS each |
|---|---|
| Dimensions | 10.6H x 6.2W x 8.7D in |
| Drivers | X-ART folded-ribbon tweeter, 4" MLM woofer |
| Enclosure | 2-way active, dual front ports |
| Inputs | XLR and RCA; Ethernet for control |
| Spinorama Preference Score | 3.02 |
| Spinorama Preference Score with Perfect Sub | 5.43 |
| Weight | 12.8 lbs (5.8 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
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