Short answer: the Neumann KH 310 A. It ranks #17 of 67 powered bookshelf speakers by sound quality at $2499; the HEDD Type 20 MK2 ranks #18 and costs $4800, which makes this an easy call rather than a real tradeoff.
What the Neumann KH 310 A offers: The sealed three-way design combines 35.2Hz measured -3dB extension with low distortion in the review’s demanding playback tests. Its 2.2dB response span from 300Hz to 5kHz and 6.86 ideal-subwoofer score support balanced monitoring with useful full-range capability. Watch for: Its measured tonal balance is not as even as the KH 150 or the best coaxial alternatives. Correct orientation and listening height matter for the separated drivers. The analog system lacks the integrated calibration workflow of newer DSP models, so room correction requires additional equipment.
What the HEDD Type 20 MK2 offers: The measured ported configuration reaches 35.2Hz at -3dB and scores 6.92 with an ideal subwoofer. A 2.4dB response span from 300Hz to 5kHz supports broadly balanced mids, while ported operation reduces deep-bass strain compared with the sealed setting in the review. Watch for: These results are for ported operation, not every bass or phase setting. Horizontal asymmetry and vertical crossover behavior make orientation and listening position important. Distortion rises at higher output, and linear-phase processing can add latency for live monitoring.
Buy the Neumann KH 310 A. It ranks higher for sound quality than the HEDD Type 20 MK2 and costs less, so there is no real case for the other one.
Looking for alternatives? See the complete Powered Home rankings.
Specifications Side By Side
| Neumann KH 310 A | HEDD Type 20 MK2 | |
|---|---|---|
| Price | $4,998 per pair | $4800 per pair |
| Ranked | #17 of 67 in Large Size Powered Bookshelf Speakers | #18 of 67 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 70Hz (measured, Audio Science Review) | 32Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 42Hz (measured, Audio Science Review) | 26Hz (measured, Audio Science Review) |
| Dimensions | not published by manufacturer | 14.1"H x 11"W x 13.3"D (358.1 x 279.4 x 337.8 mm) |
| Frequency Response | 34Hz - 21kHz (+/-3dB) (Manufacturer specified) | 32Hz - 40kHz (Manufacturer specified) |
| Weight | not published by manufacturer | 34 lbs (15.4 kg) each |
| Drivers | 8.25" woofer, 3" midrange, 1" tweeter | 7" honeycomb composite woofer, 4" honeycomb composite midrange, HEDD AMT (Air Motion Transformer) tweeter |
| App | No | Yes (HEDD CTRL) |
| EQ | No | Yes (Desk filter, shelf filters) |
| DSP | No | Yes (96kHz/32-bit) |
| Amplifier Power | 290W total (150W woofer, 70W mid, 70W tweeter) | 900W (3x300W) |
| Spinorama Preference Score | 5.36 | 5.34 |
| Spinorama Preference Score with Perfect Sub | 6.86 | 6.92 |
| Bluetooth | - | No |
| Inputs | - | XLR (Analog/AES) |
| Outputs | - | XLR (AES pass-through) |
| Maximum SPL | - | 120dB @ 1m (per pair) (manufacturer specified) |
Related Speaker Comparisons
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Prices on this page were last checked September 16, 2026 at 12:41 AM 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 310 A: $4,998 per pair B&H Photo Video eBay
Pros: The sealed three-way design combines 35.2Hz measured -3dB extension with low distortion in the review’s demanding playback tests. Its 2.2dB response span from 300Hz to 5kHz and 6.86 ideal-subwoofer score support balanced monitoring with useful full-range capability. Measured bass extension of 70Hz (-3dB).
Cons: Its measured tonal balance is not as even as the KH 150 or the best coaxial alternatives. Correct orientation and listening height matter for the separated drivers. The analog system lacks the integrated calibration workflow of newer DSP models, so room correction requires additional equipment.
Full Neumann KH 310 A review and specifications →
| Amplifier Power | 290W total (150W woofer, 70W mid, 70W tweeter) |
|---|---|
| App | No |
| Bass Extension (-10dB) | 42Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 70Hz (measured, Audio Science Review) |
| DSP | No |
| Dimensions | not published by manufacturer |
| Drivers | 8.25" woofer, 3" midrange, 1" tweeter |
| EQ | No |
| Frequency Response | 34Hz - 21kHz (+/-3dB) (Manufacturer specified) |
| Spinorama Preference Score | 5.36 |
| Spinorama Preference Score with Perfect Sub | 6.86 |
| Weight | not published by manufacturer |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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HEDD Type 20 MK2: $4800 per pair B&H Photo Video eBay
Pros: The measured ported configuration reaches 35.2Hz at -3dB and scores 6.92 with an ideal subwoofer. A 2.4dB response span from 300Hz to 5kHz supports broadly balanced mids, while ported operation reduces deep-bass strain compared with the sealed setting in the review. Measured bass extension of 32Hz (-3dB).
Cons: These results are for ported operation, not every bass or phase setting. Horizontal asymmetry and vertical crossover behavior make orientation and listening position important. Distortion rises at higher output, and linear-phase processing can add latency for live monitoring.
Full HEDD Type 20 MK2 review and specifications →
| Amplifier Power | 900W (3x300W) |
|---|---|
| App | Yes (HEDD CTRL) |
| Bass Extension (-10dB) | 26Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 32Hz (measured, Audio Science Review) |
| Bluetooth | No |
| DSP | Yes (96kHz/32-bit) |
| Dimensions | 14.1"H x 11"W x 13.3"D (358.1 x 279.4 x 337.8 mm) |
| Drivers | 7" honeycomb composite woofer, 4" honeycomb composite midrange, HEDD AMT (Air Motion Transformer) tweeter |
| EQ | Yes (Desk filter, shelf filters) |
| Frequency Response | 32Hz - 40kHz (Manufacturer specified) |
| Inputs | XLR (Analog/AES) |
| Maximum SPL | 120dB @ 1m (per pair) (manufacturer specified) |
| Outputs | XLR (AES pass-through) |
| Spinorama Preference Score | 5.34 |
| Spinorama Preference Score with Perfect Sub | 6.92 |
| Weight | 34 lbs (15.4 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons