Short answer: the Neumann KH120 MKII for real bass extension, the Vanatoo Transparent Zero Plus for desktop neutrality. The Vanatoo is genuinely neutral for a small desktop-class speaker, but its 8th-order Butterworth high-pass at 58Hz sharply limits bass, with an F3 of 92Hz and F10 of 53Hz. The KH120 MKII stays flat almost to 50Hz and is about as flat as the reviewer has measured.
What the Vanatoo Transparent Zero Plus offers: Genuinely neutral tonal balance in a small desktop-class powered speaker - a rarity in this size and price range, where the reviewer says most competitors have a scooped mid-range, one-note bass. Watch for: An 8th-order Butterworth high-pass at 58Hz sharply limits bass below that point - F3 measures 92Hz and F10 53Hz, so kick drum fundamentals and true low end need a subwoofer.
Buy the Neumann KH120 MKII if sound quality matters more than the price. Buy the Vanatoo Transparent Zero Plus if the price matters more than sound quality.
Looking for alternatives? See the complete Powered Home rankings.
Specifications Side By Side
| Neumann KH120 MKII | Vanatoo Transparent Zero Plus | |
|---|---|---|
| Price | $2000 per pair | $499.99 per pair |
| Ranked | #2 of 68 in Medium Size Powered Bookshelf Speakers | #35 of 68 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 36Hz (measured, Audio Science Review) | 53Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 46Hz (measured, Audio Science Review) | 92Hz (measured, Erin’s Audio Corner) |
| Dimensions | 11.3”H x 7.2”W x 8.9”D (287 x 182.9 x 226.1 mm) | 8.5”H x 5.5”W x 6”D |
| Inputs | XLR | Bluetooth (aptX HD), USB (24-bit/96kHz), Toslink Optical (24-bit/96kHz), 3.5mm Analog |
| Drivers | 5.25” woofer, 1” titanium fabric dome tweeter | 4” aluminum cone woofer, 4” long-throw passive radiator, 1” soft dome tweeter |
| Weight | 14.6 lbs (6.6 kg) each | 7.1 lbs (3.2 kg) each |
| App | Yes (MA 1 alignment) | - |
| Bluetooth | No | Yes |
| DSP | Yes | Yes (8th-order Butterworth high-pass at 58Hz) |
| EQ | Yes (via DSP) | - |
| Frequency Response | 44Hz - 21kHz (±3dB) (Manufacturer specified) | 56Hz - 20kHz (+/-3dB) (Manufacturer specified) |
| Amplifier Power | 245W (145W woofer + 100W tweeter) | 120W total (Class D) |
| Maximum SPL | 116.8dB @ 1m (manufacturer specified) | - |
| Spinorama Preference Score | 6.49 | 4.07 |
| Spinorama Preference Score with Perfect Sub | 8.44 | 6.73 |
| XLR Input | Yes | No |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | No | Yes |
| Coaxial Input | No | No |
| USB Input | No | Yes |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | Yes |
| Bluetooth Codecs | - | SBC, AAC, aptX, aptX HD |
| Sensitivity | - | 88.5dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Subwoofer Output | - | Yes |
| Outputs | - | RCA subwoofer |
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Prices on this page were last checked October 2, 2026 at 10:18 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 KH120 MKII: $2000 per pair B&H Photo Video eBay
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
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Vanatoo Transparent Zero Plus: $499.99 per pair Amazon eBay
Pros: Erin’s data shows a small 1.7dB span from 300Hz to 5kHz and a broadly level midrange trend. Scores of 4.07 standalone and 6.73 with an ideal subwoofer support it as a useful compact desktop option. Flexible cabinet orientation, multiple inputs and automatic subwoofer crossover behavior help with setup. Measured bass extension of 92Hz (-3dB), with a measured sensitivity of 88.5dB.
Cons: The measured -3dB point is around 95Hz, with a much lower F10 in the original review; this is not flat bass to the low-50Hz region. Vertical listening angle changes the upper-midrange response. The review finds cleaner results at moderate levels than near maximum output, where multitone distortion increases. A subwoofer is particularly valuable here. An 8th-order high-pass filter at 58Hz sharply cuts bass below that point, so kick drum fundamentals need a subwoofer.
Full Vanatoo Transparent Zero Plus review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 120W total (Class D) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 53Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 92Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD |
| Coaxial Input | No |
| DSP | Yes (8th-order Butterworth high-pass at 58Hz) |
| Dimensions | 8.5”H x 5.5”W x 6”D |
| Drivers | 4” aluminum cone woofer, 4” long-throw passive radiator, 1” soft dome tweeter |
| Frequency Response | 56Hz - 20kHz (+/-3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | Bluetooth (aptX HD), USB (24-bit/96kHz), Toslink Optical (24-bit/96kHz), 3.5mm Analog |
| Optical Input | Yes |
| Outputs | RCA subwoofer |
| RCA Input | No |
| Sensitivity | 88.5dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 4.07 |
| Spinorama Preference Score with Perfect Sub | 6.73 |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | Yes |
| Weight | 7.1 lbs (3.2 kg) each |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Vanatoo Transparent Zero Plus Review. More from Erin’s Audio Corner →
- Erin’s Audio Corner Website: Vanatoo Transparent Zero Plus
- Erin’s Audio Corner Measurements (spinorama.org)
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