Short answer: these are both genuinely elite large monitors: choose the Neumann KH420 for deeper extension and slightly cleaner measured midrange, or the Genelec 8361A for coaxial imaging and room-calibration workflow. Their prices and physical demands are close enough that installation should decide the comparison.
The case for the Genelec 8361A: Three-way coaxial design: 5” mid-range with an inset 1” metal dome tweeter. Set against that: Flagship-level pricing.
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. Set against that: Horizontal beamwidth, while well controlled, is on the narrow side at about ±55 degrees.
The KH420 reaches roughly 27.8Hz at -3dB and posts a 1.2dB 300Hz to 5kHz response span. The 8361A is still exceptionally controlled, with 33.7Hz extension, low distortion, strong output, and the imaging benefits of its coaxial layout. Neither is a casual desktop speaker.
Buy the Neumann KH420 for the strongest measured bass extension and tonal accuracy in a large monitoring room.
Buy the Genelec 8361A for consistent coaxial imaging and a Genelec GLM-based setup.
Still deciding? The full Powered Home rankings cover every ranked option.
Big coaxial studio monitors with highly accurate sound, deep bass, and the headroom to play cleanly from farther away.
Large three-way studio monitors with highly accurate mids and genuinely deep bass, built for bigger rooms and dynamic material.
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Specifications Side By Side
| Genelec 8361A | Neumann KH420 | |
|---|---|---|
| Price | $11,700 per pair | $11,198 per pair |
| Ranked | #6 of 119 in Large Size Powered Bookshelf Speakers | #5 of 119 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 29Hz (measured, Erin’s Audio Corner) | 24.4Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Bass Extension (-3dB) | 34Hz (measured, Erin’s Audio Corner) | 27.8Hz (measured, Audio Science Review) |
| Dimensions | 22.5”H x 14”W x 13.6”D (571.5 x 355.6 x 345.4 mm) | 25.4”H x 13”W x 17.5”D (645.2 x 330.2 x 444.5 mm) |
| Inputs | XLR | XLR |
| Drivers | Dual 263 x 137 mm woofers, 5.1” coaxial with tweeter midrange, 1” (25mm) coaxial tweeter | 10” woofer, 4” dome midrange, 1” fabric dome tweeter |
| Weight | 70.3 lbs (31.9 kg) each | 77.2 lbs (35 kg) each |
| App | Yes (GLM) | Yes (MA 1 alignment) |
| Bluetooth | No | No |
| DSP | Yes | No |
| EQ | Yes (via GLM software) | Yes (Room response controls) |
| Frequency Response | 30Hz - 43kHz (±2dB) (Manufacturer specified) | 31Hz - 21kHz (±3dB) (Manufacturer specified) |
| Amplifier Power | 1000w Per Speaker | 555w Per Speaker |
| Maximum SPL | 118dB @ 1m (manufacturer specified) | 124dB @ 1m (manufacturer specified) |
| Spinorama Preference Score | 6.76 | 7.02 |
| Spinorama Preference Score with Perfect Sub | 8.08 | 8.14 |
| XLR Input | Yes | Yes |
| RCA Input | No | 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 | No | No |
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