Short answer: the Neumann KH 150. It ranks #8 of 67 powered bookshelf speakers by sound quality at $3398; 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 150 offers: An exceptionally tight 1.0dB response span from 300Hz to 5kHz supports neutral vocals and instruments. The measured ideal-subwoofer score is 7.58, with -3dB bass extension to 39.6Hz. DSP and optional MA 1 alignment offer useful control over room-related response errors. Watch for: 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.
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 150. 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.
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Specifications Side By Side
| Neumann KH 150 | HEDD Type 20 MK2 | |
|---|---|---|
| Price | $3,398 per pair | $4800 per pair |
| Ranked | #8 of 67 in Large Size Powered Bookshelf Speakers | #18 of 67 in Large Size Powered Bookshelf Speakers |
| Enclosure | ported | - |
| Drivers | 1" tweeter, 6.5" woofer | 7" honeycomb composite woofer, 4" honeycomb composite midrange, HEDD AMT (Air Motion Transformer) tweeter |
| Dimensions | 13.6"H x 8.9"W x 10.7"D (345 x 225 x 273 mm) | 14.1"H x 11"W x 13.3"D (358.1 x 279.4 x 337.8 mm) |
| Weight | 17.6 lbs (8.0 kg) each | 34 lbs (15.4 kg) each |
| Amplifier Power | 245W total (145W woofer, 100W tweeter, 10% THD+N) | 900W (3x300W) |
| Frequency Response | 39Hz-20.4kHz +/-3dB | 32Hz - 40kHz (Manufacturer specified) |
| Bass Extension (-3dB) | 39.6Hz (measured, Audio Science Review) | 32Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 34.2Hz (measured, Audio Science Review) | 26Hz (measured, Audio Science Review) |
| Crossover Frequency | 1.7kHz | - |
| Warranty | 2 years | - |
| Country | Germany | - |
| Maximum SPL | 118.7dB @ 1m half space (manufacturer specified) | 120dB @ 1m (per pair) (manufacturer specified) |
| Spinorama Preference Score | 5.84 | 5.34 |
| Spinorama Preference Score with Perfect Sub | 7.58 | 6.92 |
| App | - | Yes (HEDD CTRL) |
| Bluetooth | - | No |
| DSP | - | Yes (96kHz/32-bit) |
| EQ | - | Yes (Desk filter, shelf filters) |
| Inputs | - | XLR (Analog/AES) |
| Outputs | - | XLR (AES pass-through) |
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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 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 7.58, 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 →
| Amplifier Power | 245W total (145W woofer, 100W tweeter, 10% THD+N) |
|---|---|
| Bass Extension (-10dB) | 34.2Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 39.6Hz (measured, Audio Science Review) |
| 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 |
| Maximum SPL | 118.7dB @ 1m half space (manufacturer specified) |
| Spinorama Preference Score | 5.84 |
| Spinorama Preference Score with Perfect Sub | 7.58 |
| Warranty | 2 years |
| Weight | 17.6 lbs (8.0 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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
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