Short answer: the Neumann KH 150 on measured engineering, the Focal Alpha 65 EVO on features. The KH 150’s Mathematically Modelled Dispersion waveguide gives a 0.69 listening window smoothness score and the 6.5 inch woofer reaches a genuine 39.6Hz, though its 3.89 sound power directivity standard deviation is the widest in this matchup. The Focal is neutral with better soundstage and instrument definition than the HS8, but ignores sub-bass and its trim dials lack a center detent.
What the Neumann KH 150 offers: Neumann’s Mathematically Modelled Dispersion waveguide produces a listening window smoothness score of 0.69 with a steadily narrowing directivity index through the treble, and the 6.5 inch woofer reaches a genuine 39.6Hz extension point. The tradeoff: The sound power directivity index has the widest standard deviation of any speaker in this batch, 3.89, meaning off axis energy tracks the on axis response a little less consistently than the tightest speakers here as frequency rises.
On the Focal Alpha 65 EVO side: Very neutral, not quite as good as the Klasik 2020 in the midrange, but with better soundstage and instrument definition than the HS8. The catch: Ignores sub-bass, and the LF/HF trim dials lack a center detent so getting back to flat takes trial and error.
Buy the Neumann KH 150 if sound quality matters more than the price. Buy the Focal Alpha 65 EVO if the price matters more than sound quality.
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Specifications Side By Side
| Neumann KH 150 | Focal Alpha 65 EVO | |
|---|---|---|
| Price | $3,398 per pair | $804 per pair |
| Ranked | #8 of 68 in Large Size Powered Bookshelf Speakers | #51 of 68 in Large Size Powered Bookshelf Speakers |
| Enclosure | ported | - |
| Drivers | 1” tweeter, 6.5” woofer | 6.5” (165mm) woofer |
| Dimensions | 13.6”H x 8.9”W x 10.7”D (345 x 225 x 273 mm) | 13.4”H x 10.3”W x 11.4”D (340.4 x 261.6 x 289.6 mm) |
| Weight | 17.6 lbs (8.0 kg) each | 16.8 lbs (7.6 kg) each |
| Amplifier Power | 245W total (145W woofer, 100W tweeter, 10% THD+N) | 85w Per Speaker |
| Frequency Response | 39Hz-20.4kHz +/-3dB | 40Hz - 22kHz (+-3dB) (Manufacturer specified) |
| Bass Extension (-3dB) | 39.6Hz (measured, Audio Science Review) | 45Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 34.2Hz (measured, Audio Science Review) | 36Hz (measured, Audio Science Review) |
| Crossover Frequency | 1.7kHz | - |
| Warranty | 2 years | - |
| Country | Germany | - |
| Maximum SPL | 118.7dB @ 1m half space (manufacturer specified) | - |
| Spinorama Preference Score | 6.65 | 4.71 |
| Spinorama Preference Score with Perfect Sub | 8.38 | 6.59 |
| Inputs | XLR (balanced analog), RCA S/PDIF (digital) | TRS, XLR, RCA |
| XLR Input | Yes | Yes |
| RCA Input | Yes | Yes |
| TRS Input | No | Yes |
| Optical Input | No | No |
| Coaxial Input | Yes | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
| Bluetooth | No | No |
| App | - | No |
| EQ | - | Yes (Room adjustment) |
| DSP | - | No |
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Prices on this page were last checked October 3, 2026 at 10:26 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
Neumann KH 150: $3,398 per pair B&H Photo Video eBay
Pros: An exceptionally tight 1.0dB response span from 300Hz to 5kHz supports neutral vocals and instruments. The measured ideal-subwoofer score is 8.38, with -3dB bass extension to 39.6Hz. DSP and optional MA 1 alignment offer useful control over room-related response errors. Measured bass extension of 39.6Hz (-3dB).
Cons: A two-way nearfield monitor cannot match the largest three-way systems for deep-bass output at distance. Keep the tweeter near ear height to avoid crossover-related changes off the vertical axis. MA 1 calibration requires additional equipment, and studio connections are less convenient than a consumer streaming system.
Full Neumann KH 150 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 245W total (145W woofer, 100W tweeter, 10% THD+N) |
| Aux Input | No |
| Bass Extension (-10dB) | 34.2Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 39.6Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | Yes |
| Country | Germany |
| Crossover Frequency | 1.7kHz |
| Dimensions | 13.6”H x 8.9”W x 10.7”D (345 x 225 x 273 mm) |
| Drivers | 1” tweeter, 6.5” woofer |
| Enclosure | ported |
| Frequency Response | 39Hz-20.4kHz +/-3dB |
| HDMI Input | No |
| Inputs | XLR (balanced analog), RCA S/PDIF (digital) |
| Maximum SPL | 118.7dB @ 1m half space (manufacturer specified) |
| Optical Input | No |
| RCA Input | Yes |
| Spinorama Preference Score | 6.65 |
| Spinorama Preference Score with Perfect Sub | 8.38 |
| TRS Input | No |
| USB Input | No |
| Warranty | 2 years |
| Weight | 17.6 lbs (8.0 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Focal Alpha 65 EVO: $804 per pair Amazon eBay
Pros: ASR measured 42.5Hz -3dB extension, providing useful low-end reach for music. Analog input options and tonal controls make it straightforward to integrate into a studio, with a 6.59 ideal-subwoofer score indicating respectable but not leading tonality. Measured bass extension of 45Hz (-3dB).
Cons: The measured 2.7dB response span from 300Hz to 5kHz and listening-window variation do not support a claim of reference-level neutrality. Placement and external correction may help. An anomalous distortion result from an individual sample should not be treated as a proven defect in every unit.
Full Focal Alpha 65 EVO review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 85w Per Speaker |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 36Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 45Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | No |
| Dimensions | 13.4”H x 10.3”W x 11.4”D (340.4 x 261.6 x 289.6 mm) |
| Drivers | 6.5” (165mm) woofer |
| EQ | Yes (Room adjustment) |
| Frequency Response | 40Hz - 22kHz (+-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | TRS, XLR, RCA |
| Optical Input | No |
| RCA Input | Yes |
| Spinorama Preference Score | 4.71 |
| Spinorama Preference Score with Perfect Sub | 6.59 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 16.8 lbs (7.6 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Audio Science Review Measurements More from Audio Science Review →
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- Audio Science Review Measurements (spinorama.org)
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