Short answer: the Neumann KH 150 on measured sound quality, the Klipsch The Nines on price. The Neumann KH 150 ranks #8 of 113 powered bookshelf speakers, rated 4.8/5, at $3,398. The Klipsch The Nines ranks #63, rated 4.2/5, at $999.99, $2,398.01 cheaper.
Why pick the Klipsch The Nines: The 1.7dB response span from 300Hz to 5kHz supports even mids, and measured -3dB extension is 42.5Hz. It keeps a wired aux input, which the Neumann KH 150 lacks. The tradeoff: The 6.90 ideal-subwoofer score reflects limitations beyond the narrow midband span.
The Neumann KH 150 is the more accurate option. An exceptionally tight 1.0dB response span from 300Hz to 5kHz supports neutral vocals and instruments. Its measured preference score, a predictor of how neutral it sounds, is 6.65 against 5.32 for the Klipsch The Nines. Watch for: A two-way nearfield monitor cannot match the largest three-way systems for deep-bass output at distance.
Buy the Klipsch The Nines when the price outweighs sound quality for you, and the Neumann KH 150 when sound quality outweighs the price instead.
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Specifications Side By Side
| Klipsch The Nines | Neumann KH 150 | |
|---|---|---|
| Price | $999.99 per pair | $3,398 per pair |
| Ranked | #63 of 113 in Large Size Powered Bookshelf Speakers | #8 of 113 in Large Size Powered Bookshelf Speakers |
| Drivers | 8” high-excursion fiber-composite woofer, 1” titanium LTS vented tweeter with Tractrix horn | 1” tweeter, 6.5” woofer |
| Amplifier Power | 240W total (480W peak; 100W LF + 20W HF per powered speaker) | 245W total (145W woofer, 100W tweeter, 10% THD+N) |
| Inputs | HDMI ARC, Bluetooth 5.0, phono/line RCA, 3.5mm, USB, optical | XLR (balanced analog), RCA S/PDIF (digital) |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD | - |
| Dimensions | 19.13”H x 9.5”W x 13.38”D | 13.6”H x 8.9”W x 10.7”D (345 x 225 x 273 mm) |
| Weight | 28.4 lbs (12.9 kg) primary, 26.9 lbs (12.2 kg) secondary | 17.6 lbs (8.0 kg) each |
| Sensitivity | 82.5dB (measured at 0.30V/1m, Erin’s Audio Corner) | - |
| Bass Extension (-3dB) | 42.5Hz (measured, Erin’s Audio Corner) | 39.6Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 31Hz (measured, Erin’s Audio Corner) | 34.2Hz (measured, Audio Science Review) |
| Frequency Response | 34Hz - 25kHz +/-3dB (manufacturer specified) | 39Hz-20.4kHz +/-3dB |
| App | Klipsch Connect (bass/mid/treble EQ) | - |
| Woofer Cabinet | rear-ported bass reflex | - |
| Maximum SPL | 115dB at 1m (stereo pair, manufacturer specified) | 118.7dB @ 1m half space (manufacturer specified) |
| Spinorama Preference Score | 5.32 | 6.65 |
| Spinorama Preference Score with Perfect Sub | 6.90 | 8.38 |
| Subwoofer Output | Yes | - |
| Outputs | Subwoofer | - |
| XLR Input | No | Yes |
| RCA Input | Yes | Yes |
| TRS Input | No | No |
| Optical Input | Yes | No |
| Coaxial Input | No | Yes |
| USB Input | Yes | No |
| HDMI Input | Yes | No |
| AES Input | No | No |
| Aux Input | Yes | No |
| Bluetooth | Yes | No |
| Bluetooth Version | 5.0 | - |
| Enclosure | - | ported |
| Crossover Frequency | - | 1.7kHz |
| Warranty | - | 2 years |
| Country | - | Germany |
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Prices on this page were last checked October 7, 2026 at 9:25 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
Klipsch The Nines: $999.99 per pair Crutchfield eBay
Newer model: the Klipsch The Nines II, ranked higher, estimated 4.3/5.
Same family: the Klipsch The Fives (smaller bookshelf, rated 4.3/5) and the Klipsch The Sevens (smaller bookshelf, ranked lower, rated 3.7/5).
Pros: The 1.7dB response span from 300Hz to 5kHz supports even mids, and measured -3dB extension is 42.5Hz. Extensive consumer connections and app adjustment make it convenient for TV and music, while the horn provides a focused listening presentation. Erin called it his favorite Klipsch speaker. Measured bass extension of 42.5Hz (-3dB), with a measured sensitivity of 82.5dB.
Cons: The 6.90 ideal-subwoofer score reflects limitations beyond the narrow midband span. Horizontal coverage is relatively focused, so placement matters for multiple seats. The reviewer preferred reduced treble, and bass limiting at higher playback levels means the large woofer is not a guarantee of unlimited output. The app’s flat setting leaves treble elevated; Erin preferred a -2dB tweeter trim.
Full Klipsch The Nines review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 240W total (480W peak; 100W LF + 20W HF per powered speaker) |
| App | Klipsch Connect (bass/mid/treble EQ) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 31Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 42.5Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, aptX, aptX HD |
| Bluetooth Version | 5.0 |
| Coaxial Input | No |
| Dimensions | 19.13”H x 9.5”W x 13.38”D |
| Drivers | 8” high-excursion fiber-composite woofer, 1” titanium LTS vented tweeter with Tractrix horn |
| Frequency Response | 34Hz - 25kHz +/-3dB (manufacturer specified) |
| HDMI Input | Yes |
| Inputs | HDMI ARC, Bluetooth 5.0, phono/line RCA, 3.5mm, USB, optical |
| Maximum SPL | 115dB at 1m (stereo pair, manufacturer specified) |
| Optical Input | Yes |
| Outputs | Subwoofer |
| RCA Input | Yes |
| Sensitivity | 82.5dB (measured at 0.30V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.32 |
| Spinorama Preference Score with Perfect Sub | 6.90 |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | Yes |
| Weight | 28.4 lbs (12.9 kg) primary, 26.9 lbs (12.2 kg) secondary |
| Woofer Cabinet | rear-ported bass reflex |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Klipsch The Nines vs Klipsch The Nines II
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- Klipsch The Nines vs JBL 4329P
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Neumann KH 150: $3,398 per pair B&H Photo Video eBay
Same family: the Neumann KH80 DSP (smaller bookshelf, rated 4.6/5), the Neumann KH120 MKII (smaller bookshelf, rated 4.7/5), the Neumann KH 310 A (larger bookshelf, ranked lower, rated 4.6/5), the Neumann KH420 (larger bookshelf, ranked higher, rated 4.8/5) and the Neumann KH 750 DSP (subwoofer, rated 3.5/5).
Pros: An exceptionally tight 1.0dB response span from 300Hz to 5kHz supports neutral vocals and instruments. The measured ideal-subwoofer score is 8.38, 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 →
| AES Input | No |
|---|---|
| Amplifier Power | 245W total (145W woofer, 100W tweeter, 10% THD+N) |
| Aux Input | No |
| Bass Extension (-10dB) | 34.2Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 39.6Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | Yes |
| 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 |
| HDMI Input | No |
| Inputs | XLR (balanced analog), RCA S/PDIF (digital) |
| Maximum SPL | 118.7dB @ 1m half space (manufacturer specified) |
| Optical Input | No |
| RCA Input | Yes |
| Spinorama Preference Score | 6.65 |
| Spinorama Preference Score with Perfect Sub | 8.38 |
| TRS Input | No |
| USB Input | No |
| Warranty | 2 years |
| Weight | 17.6 lbs (8.0 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons