Short answer: the Neumann KH120 MKII if sound quality matters most, the Audioengine A5+ Classic if price matters most. The Neumann KH120 MKII ranks #2 of 100 powered bookshelf speakers, rated 4.7/5, at $1,898. The Audioengine A5+ Classic ranks #36, rated 4.0/5, at $399, $1,499 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 Neumann KH120 MKII lacks. The catch: The measured -3dB point is around 69Hz, and the upper-bass recession can reduce body in voices and instruments.
The Neumann KH120 MKII is the more accurate, deeper-bass option. ASR’s Klippel data shows exceptional neutrality: only a 1.5dB span from 300Hz to 5kHz and low listening-window narrow-band deviation of 0.208. Its measured preference score, a predictor of how neutral it sounds, is 6.49 against 4.59 for the Audioengine A5+ Classic. Its bass reaches about 46Hz before falling 3dB, against 68Hz for the Audioengine A5+ Classic. It has an adjustable EQ, which the Audioengine A5+ Classic lacks. The catch: Vertical crossover interference makes listening height important even though horizontal dispersion is well controlled.
Buy the Audioengine A5+ Classic if the price matters more than sound quality. Buy the Neumann KH120 MKII 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 | Neumann KH120 MKII | |
|---|---|---|
| Price | $399.00 per pair | $1,898.00 per pair |
| Ranked | #36 of 100 in Medium Size Powered Bookshelf Speakers | #2 of 100 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 68Hz (measured, Audio Science Review) | 46Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 50Hz (measured, Audio Science Review) | 36Hz (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) | 11.3”H x 7.2”W x 8.9”D (287 x 182.9 x 226.1 mm) |
| Frequency Response | 50Hz - 22kHz (+/-1.5dB) (Manufacturer specified) | 44Hz - 21kHz (±3dB) (Manufacturer specified) |
| Weight | 15.4 lbs (7 kg) (left/powered), 9.7 lbs (4.4 kg) (right) | 14.6 lbs (6.6 kg) each |
| Drivers | 5” Kevlar woofer, 0.75” silk dome tweeter | 5.25” woofer, 1” titanium fabric dome tweeter |
| App | No | Yes (MA 1 alignment) |
| EQ | No | Yes (via DSP) |
| DSP | No | Yes |
| Amplifier Power | 50W RMS / 75W peak | 245W (145W woofer + 100W tweeter) |
| Spinorama Preference Score | 4.59 | 6.49 |
| Spinorama Preference Score with Perfect Sub | 7.06 | 8.44 |
| Subwoofer Output | Yes | - |
| Outputs | RCA variable output (subwoofer) | - |
| Inputs | RCA, Aux | XLR |
| 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 | No |
| Aux Input | Yes | No |
| Bluetooth | No | No |
| Maximum SPL | - | 116.8dB @ 1m (manufacturer specified) |
Related Speaker Comparisons
How Neumann KH120 MKII compares with other leading options:
- Genelec 8331A vs Neumann KH120 MKII
- Genelec 8030C vs Neumann KH120 MKII
- Neumann KH120 MKII vs Neumann KH80 DSP
- Neumann KH120 MKII vs Dynaudio LYD 5
- Neumann KH120 MKII vs Genelec 8330A
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
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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Neumann KH120 MKII: $1,898.00 per pair B&H Photo Video eBay
Older model: the Neumann KH 120 A (ranked lower, rated 4.4/5).
Same family: the Neumann KH80 DSP (smaller bookshelf, ranked lower, rated 4.6/5), the Neumann KH 150 (larger bookshelf, rated 4.8/5), the Neumann KH 310 A (larger bookshelf, rated 4.6/5), the Neumann KH420 (larger bookshelf, rated 4.8/5) and the Neumann KH 750 DSP (subwoofer, rated 3.5/5).
Pros: ASR’s Klippel data shows exceptional neutrality: only a 1.5dB span from 300Hz to 5kHz and low listening-window narrow-band deviation of 0.208. Scores of 6.49 standalone and 8.44 with an ideal subwoofer place it among the strongest measured options here. Bass reaches -3dB around 45Hz. The review reports very low distortion at 86dB/1m and clean performance outside deep bass at 96dB. Measured bass extension of 46Hz (-3dB).
Cons: Vertical crossover interference makes listening height important even though horizontal dispersion is well controlled. A small directivity irregularity remains around 2kHz. Distortion increases below about 50Hz at high output; a subwoofer can extend the system and reduce low-frequency demands. High price, and a flat anechoic response still needs suitable placement in the room.
Full Neumann KH120 MKII review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 245W (145W woofer + 100W tweeter) |
| App | Yes (MA 1 alignment) |
| Aux Input | No |
| Bass Extension (-10dB) | 36Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 46Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | Yes |
| Dimensions | 11.3”H x 7.2”W x 8.9”D (287 x 182.9 x 226.1 mm) |
| Drivers | 5.25” woofer, 1” titanium fabric dome tweeter |
| EQ | Yes (via DSP) |
| Frequency Response | 44Hz - 21kHz (±3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR |
| Maximum SPL | 116.8dB @ 1m (manufacturer specified) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 6.49 |
| Spinorama Preference Score with Perfect Sub | 8.44 |
| TRS Input | No |
| USB Input | No |
| Weight | 14.6 lbs (6.6 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Neumann KH120 MKII vs Genelec 8030C
- Neumann KH120 MKII vs Genelec 8331A
- Neumann KH120 MKII vs Neumann KH80 DSP
- Neumann KH120 MKII vs Dynaudio LYD 5
- Neumann KH120 MKII vs Genelec 8330A
- Neumann KH120 MKII vs Genelec 8320A
- Neumann KH120 MKII vs Devialet Phantom II 98 dB
- Neumann KH120 MKII vs Topping MA4
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