Short answer: the Neumann KH420 on measured accuracy, the Kali Audio LP-6 V2 on value. The KH420’s CEA2034 spinorama matches Neumann’s published measurement to within 0.08dB at its minor dip around 60Hz, with excellent off-axis behavior. The LP-6 V2 is outstandingly neutral for the money with no audible amplifier hiss, though a vertical directivity disturbance around 1.5-2kHz makes ear height important.
What the Neumann KH420 gets right: CEA2034 spinorama shows an extended, flat on-axis response that matches Neumann’s own published measurement to within 0.08dB at its one minor dip (around 60Hz), with excellent off-axis behavior. The catch: Horizontal beamwidth, while well controlled, is on the narrow side at about ±55 degrees.
Buy the Neumann KH420 when sound quality outweighs the price for you, and the Kali Audio LP-6 V2 when the price outweighs sound quality instead.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| Neumann KH420 | Kali Audio LP-6 V2 | |
|---|---|---|
| Price | $10500 per pair | $398 per pair |
| Ranked | #5 of 68 in Large Size Powered Bookshelf Speakers | #25 of 68 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 24.4Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | 39.1Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 27.8Hz (measured, Audio Science Review) | 42Hz (measured, Erin’s Audio Corner) |
| Dimensions | 25.4”H x 13”W x 17.5”D (645.2 x 330.2 x 444.5 mm) | 14.1”H x 8.8”W x 10.2”D |
| Inputs | XLR | XLR, balanced TRS and RCA |
| Weight | 77.2 lbs (35 kg) each | 15.5 lbs (7.05 kg) each |
| Drivers | 10” woofer, 4” dome midrange, 1” fabric dome tweeter | 1” soft-dome tweeter; 6.5” woofer |
| App | Yes (MA 1 alignment) | - |
| Bluetooth | No | No |
| DSP | No | Yes; boundary presets and LF/HF trims |
| EQ | Yes (Room response controls) | - |
| Frequency Response | 31Hz - 21kHz (±3dB) (Manufacturer specified) | 47Hz - 21kHz (±3dB) (Manufacturer specified) |
| Amplifier Power | 555w Per Speaker | 40W LF + 40W HF per speaker; Bi-amplified Class D |
| Maximum SPL | 124dB @ 1m (manufacturer specified) | Approximately 102dB per pair with good measured linearity (Erin’s Audio Corner) (manufacturer specified) |
| Spinorama Preference Score | 7.02 | 5.53 |
| Spinorama Preference Score with Perfect Sub | 8.14 | 7.48 |
| XLR Input | Yes | Yes |
| RCA Input | No | Yes |
| TRS Input | No | Yes |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | No |
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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 KH420: $10500 per pair B&H Photo Video eBay
Pros: A 1.2dB response span from 300Hz to 5kHz, 8.14 ideal-subwoofer score and 27.8Hz measured -3dB extension combine accurate mids with genuinely deep bass. Its three-way design and low distortion at normal levels make it particularly attractive for larger listening distances and dynamic material. Measured bass extension of 27.8Hz (-3dB).
Cons: It is a large, heavy studio monitor rather than an easy desktop speaker. Vertical alignment matters around the crossover regions. Bass distortion rises as playback levels increase, and the measured high-level limits still apply despite the substantial drivers and amplifiers. Horizontal beamwidth is well controlled but on the narrow side at about ±55°.
Full Neumann KH420 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 555w Per Speaker |
| App | Yes (MA 1 alignment) |
| Aux Input | No |
| Bass Extension (-10dB) | 24.4Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Bass Extension (-3dB) | 27.8Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | No |
| Dimensions | 25.4”H x 13”W x 17.5”D (645.2 x 330.2 x 444.5 mm) |
| Drivers | 10” woofer, 4” dome midrange, 1” fabric dome tweeter |
| EQ | Yes (Room response controls) |
| Frequency Response | 31Hz - 21kHz (±3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR |
| Maximum SPL | 124dB @ 1m (manufacturer specified) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 7.02 |
| Spinorama Preference Score with Perfect Sub | 8.14 |
| TRS Input | No |
| USB Input | No |
| Weight | 77.2 lbs (35 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Kali Audio LP-6 V2: $398 per pair Amazon B&H Photo Video eBay
Older model: the Kali Audio LP-6 (ranked lower, rated 4.3/5).
Pros: Erin’s measurements give a 7.48 ideal-subwoofer score and 42.5Hz -3dB bass extension, a strong combination for an affordable nearfield monitor. The waveguide and placement switches help with practical setup, and the second generation improves close-range noise behavior. Measured bass extension of 42Hz (-3dB).
Cons: The 2.5dB response span from 300Hz to 5kHz leaves some tonal unevenness. Vertical crossover behavior makes ear-height placement important, and compression limits loud bass playback. Its good tonal score is not evidence of the output capability of a much larger monitor.
Full Kali Audio LP-6 V2 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 40W LF + 40W HF per speaker; Bi-amplified Class D |
| Aux Input | No |
| Bass Extension (-10dB) | 39.1Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 42Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | Yes; boundary presets and LF/HF trims |
| Dimensions | 14.1”H x 8.8”W x 10.2”D |
| Drivers | 1” soft-dome tweeter; 6.5” woofer |
| Frequency Response | 47Hz - 21kHz (±3dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, balanced TRS and RCA |
| Maximum SPL | Approximately 102dB per pair with good measured linearity (Erin’s Audio Corner) (manufacturer specified) |
| Optical Input | No |
| RCA Input | Yes |
| Spinorama Preference Score | 5.53 |
| Spinorama Preference Score with Perfect Sub | 7.48 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 15.5 lbs (7.05 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
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