Short answer: the Neumann KH 310 A if sound quality matters most, the Cambridge Audio L/R X if price matters most. The Neumann KH 310 A ranks #17 of 67 powered bookshelf speakers at $2499. The Cambridge Audio L/R X ranks #47 at $2399, $100 cheaper.
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 Cambridge Audio L/R X offers: A 2.5-way active design with a 28mm aluminum tweeter, a front-facing 5-inch mid-woofer, a second 5-inch woofer at the base whose passband overlaps the first (the source of the “.5”), and dual 6-inch side-firing passive radiators per speaker. Erin’s Audio Corner measured wide, even horizontal dispersion (a broad flare out to about the -6dB point around 1.5 to 3kHz) and deeper extension than the smaller L/R S, with an F3 of about 43Hz and F10 of about 37Hz. In-app DSP for room size, speaker distance from the front wall, and reflective surface type gave an audible change in bass tightness in testing. Connectivity covers HDMI eARC, RCA aux, a moving-magnet phono input, optical digital, USB-C, USB-A, Wi-Fi streaming, and a subwoofer output, making it a full living-room hub rather than just a stereo pair. Watch for: On-axis response is less linear than the L/R S, with dips in the bass, a peak around 1-2kHz, and a dip spanning the upper mid-range into the lower treble; Cambridge confirmed the dip is a deliberate DSP notch for a tweeter breakup resonance rather than a driver flaw, but it was audible as a mild suck-out in an AB pink-noise comparison. Vertical dispersion is narrower and asymmetric than the L/R S, at about plus 20 to minus 10 degrees, because the greater distance between the tweeter and mid-woofer creates more lobing, so listening height and stand placement matter more. Multitone distortion rides close to the 3% threshold at 96dB measured at 1 meter in the far field, limiting headroom for loud, wide-band material. Output falls off quickly below about 50Hz, so home-theater use with deep bass content benefits from an added subwoofer.
Buy the Neumann KH 310 A if sound quality matters more than the price. Buy the Cambridge Audio L/R X if the price matters more than sound quality.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| Neumann KH 310 A | Cambridge Audio L/R X | |
|---|---|---|
| Price | $4,998 per pair | $2,399.00 per pair |
| Ranked | #17 of 67 in Large Size Powered Bookshelf Speakers | #47 of 67 in Large Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 70Hz (measured, Audio Science Review) | 43Hz (measured, Erin's Audio Corner) |
| Bass Extension (-10dB) | 42Hz (measured, Audio Science Review) | 37Hz (measured, Erin's Audio Corner) |
| Dimensions | not published by manufacturer | 7.9" (200 mm) W x 330mm H x 260mm D (each) |
| Frequency Response | 34Hz - 21kHz (+/-3dB) (Manufacturer specified) | 35Hz - 24kHz (±3dB, manufacturer specified) |
| Weight | not published by manufacturer | 22.9 lbs (10.4kg) each |
| Drivers | 8.25" woofer, 3" midrange, 1" tweeter | 28mm aluminum tweeter, 2x 5" mid-woofers, 2x 6" side-firing passive radiators |
| App | No | Yes |
| EQ | No | - |
| DSP | No | Yes, room size, wall distance, and reflective surface correction |
| Amplifier Power | 290W total (150W woofer, 70W mid, 70W tweeter) | 800W total (400W per speaker) |
| Spinorama Preference Score | 5.36 | - |
| Spinorama Preference Score with Perfect Sub | 6.86 | - |
| Inputs | - | HDMI eARC, RCA aux, RCA phono (MM), optical digital, USB-C, USB-A, Ethernet, Wi-Fi |
| Bluetooth Codecs | - | SBC, AAC |
| Subwoofer Output | - | Yes |
| Outputs | - | Subwoofer |
Related Speaker Comparisons
How Neumann KH 310 A compares with other leading options:
- AsciLab C8C vs Neumann KH 310 A
- Neumann KH 310 A vs Mesanovic CDM65
- Genelec 8351B vs Neumann KH 310 A
- Neumann KH420 vs Neumann KH 310 A
- Genelec 8361A vs Neumann KH 310 A
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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Cambridge Audio L/R X: $2,399.00 per pair Amazon eBay
Pros: A 2.5-way active design with a 28mm aluminum tweeter, a front-facing 5-inch mid-woofer, a second 5-inch woofer at the base whose passband overlaps the first (the source of the “.5”), and dual 6-inch side-firing passive radiators per speaker. Erin’s Audio Corner measured wide, even horizontal dispersion (a broad flare out to about the -6dB point around 1.5 to 3kHz) and deeper extension than the smaller L/R S, with an F3 of about 43Hz and F10 of about 37Hz. In-app DSP for room size, speaker distance from the front wall, and reflective surface type gave an audible change in bass tightness in testing. Connectivity covers HDMI eARC, RCA aux, a moving-magnet phono input, optical digital, USB-C, USB-A, Wi-Fi streaming, and a subwoofer output, making it a full living-room hub rather than just a stereo pair. Measured bass extension of 43Hz (-3dB).
Cons: On-axis response is less linear than the L/R S, with dips in the bass, a peak around 1-2kHz, and a dip spanning the upper mid-range into the lower treble; Cambridge confirmed the dip is a deliberate DSP notch for a tweeter breakup resonance rather than a driver flaw, but it was audible as a mild suck-out in an AB pink-noise comparison. Vertical dispersion is narrower and asymmetric than the L/R S, at about plus 20 to minus 10 degrees, because the greater distance between the tweeter and mid-woofer creates more lobing, so listening height and stand placement matter more. Multitone distortion rides close to the 3% threshold at 96dB measured at 1 meter in the far field, limiting headroom for loud, wide-band material. Output falls off quickly below about 50Hz, so home-theater use with deep bass content benefits from an added subwoofer.
Full Cambridge Audio L/R X review and specifications →
| Amplifier Power | 800W total (400W per speaker) |
|---|---|
| App | Yes |
| Bass Extension (-10dB) | 37Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 43Hz (measured, Erin's Audio Corner) |
| Bluetooth Codecs | SBC, AAC |
| DSP | Yes, room size, wall distance, and reflective surface correction |
| Dimensions | 7.9" (200 mm) W x 330mm H x 260mm D (each) |
| Drivers | 28mm aluminum tweeter, 2x 5" mid-woofers, 2x 6" side-firing passive radiators |
| Frequency Response | 35Hz - 24kHz (±3dB, manufacturer specified) |
| Inputs | HDMI eARC, RCA aux, RCA phono (MM), optical digital, USB-C, USB-A, Ethernet, Wi-Fi |
| Outputs | Subwoofer |
| Subwoofer Output | Yes |
| Weight | 22.9 lbs (10.4kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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