KEF LS50 Meta vs Parts Express C-Note

Last updated: August 25, 2026

Short answer: the KEF LS50 Meta for better sound quality, the Parts Express C-Note for the lower price. The KEF LS50 Meta ranks #4 of 87 bookshelf speakers at $1599. The Parts Express C-Note ranks #27 at $100, $1499 cheaper.

What the KEF LS50 Meta offers: Uni-Q concentric driver mounts a 1” vented aluminum dome tweeter at the center of a 5.25” aluminum cone woofer, rated 79Hz-20kHz+. Speaker-to-speaker matching measured tight at roughly 0.5dB deviation between the pair tested, versus 2-3dB seen on some other speakers - likely why imaging stayed so precise. Imaging stays tight and focused even toed out, unlike most coincident designs where toe-out typically diffuses the image, giving more of an oval-shaped soundstage than a hard rectangular boundary. Horizontal and vertical directivity both hold to about ±50° at the -6dB point, so tonality stays consistent across roughly a 100° listening cone. The extended bass shelf is deliberately tuned for near-wall/boundary placement rather than the usual “pull it 3 feet into the room” advice, playing lower without excess boominess when placed close to a wall. At $1,000 (a frequent sale price versus $1,600 list), called a no-brainer for a compact stand-mount speaker. Independent ASR Klippel measurements corroborate this: very good directivity with the on- and off-axis curves tracking closely, and a predicted in-room response the reviewer called “very close to ideal.” Watch for: F3 of 67Hz and F10 of 42Hz mean it doesn’t get much below 50Hz in-room; a subwoofer is recommended for real bass. A 2-3dB scoop around 2-4kHz shows up in both the listening window and sound power measurements, matching a subjectively noticed lack of attack and vocal clarity that the reviewer wanted to correct with about 2dB of EQ. An on-axis diffraction dip around 8kHz smooths out with about 15° of toe-out (typical for concentric designs, but still present at 0°). Distortion is elevated at low frequencies since the single 5.25” cone shares surface area with the tweeter housing, reducing effective radiating area; multitone distortion crosses the 3% threshold at 96dB/1m, making roughly 88dB or below the safer output ceiling. Moderate sensitivity (~83dB average) needed 2-3dB more amplifier gain than typical in testing. Adding a subwoofer at an 80Hz crossover only helps lower-midrange distortion, not the elevated distortion in the 1-2kHz and above-5kHz regions. ASR’s own Klippel testing found the same pattern in starker terms: THD is very good at 86dB SPL/1m but climbs past 100% in the bass at 96dB SPL/1m, confirming this is not a near-field speaker for high-output bass-heavy material. Cumulative spectral decay (waterfall) also shows a couple of resonances lingering in the 1-2kHz region.

What the Parts Express C-Note offers: CEA2034 spinorama shows a reasonably flat response in the critical midrange with good directivity control near the crossover point, courtesy of a waveguide-integrated tweeter. High power handling let it play very loud in a large room with no sign of bottoming out - unusual for a $100 pair. The MDF cabinet felt stout in hand despite the unfinished, DIY flat-pack construction. Watch for: Reduced bass output and a resonance peak around 700Hz both show up clearly in the measurements; worst-case distortion above 1kHz sits about 40dB below listening level. Ships as unfinished MDF flat-pack cabinets, requiring assembly and finishing (gluing, painting or veneering) before use.

Buy the KEF LS50 Meta if sound quality matters more than the price. Buy the Parts Express C-Note if the price matters more than sound quality.

Buy the KEF LS50 Meta at Amazon ($1,599.00) →Buy the Parts Express C-Note at Parts Express ($100) →

KEF LS50 Meta vs Parts Express C-Note

Specifications Side By Side

KEF LS50 Meta Parts Express C-Note
Price$1,599.00$100
Ranked#4 of 87 in Medium Size Bookshelf Speakers#27 of 87 in Medium Size Bookshelf Speakers
Bass Extension (-10dB)43Hz (measured, Erin’s Audio Corner)-
Bass Extension (-3dB)68Hz (measured, Erin’s Audio Corner)90Hz (measured, Audio Science Review) - the reviewer explicitly flagged this measurement as unreliable below 70Hz, so no -10dB figure is given
Dimensions11.9"H x 7.9"W x 11"D (302 x 200 x 280.5 mm)11H x 7.5W x 9.5D in (unfinished MDF flat-pack)
Impedance8 ohms nominal (3.7 ohms minimum above 80Hz, measured by Erin’s Audio Corner)8 ohms
Sensitivity83dB (measured average, Erin’s Audio Corner; 85dB manufacturer specified)83dB (2.83V/1m, measured, Audio Science Review)
Drivers130 mm (5.25 in.) aluminium cone woofer, 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption tweeterDayton Audio DSA135-8 5" woofer, Dayton ND25FW-4 1" soft dome tweeter (waveguide-loaded)
Weight17.2 lbs / 7.8 kg eachnot published (DIY kit)
Woofer Cabinetported, rearported
Frequency Response-43Hz - 20kHz +/-3dB (Manufacturer specified)
Power Handling-60W RMS / 120W max
Buy the KEF LS50 Meta at Amazon ($1,599.00) →Buy the Parts Express C-Note at Parts Express ($100) →

More useful head-to-heads from the same speaker class:

Prices on this page were last checked August 25, 2026 at 6:19 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.

As an eBay Partner, we may be compensated if you make a purchase.

The Two Speakers In Full

KEF LS50 Meta: $1,599.00 Amazon Crutchfield eBay

KEF LS50 Meta ranking card

Pros: Uni-Q concentric driver mounts a 1” vented aluminum dome tweeter at the center of a 5.25” aluminum cone woofer, rated 79Hz-20kHz+. Speaker-to-speaker matching measured tight at roughly 0.5dB deviation between the pair tested, versus 2-3dB seen on some other speakers - likely why imaging stayed so precise. Imaging stays tight and focused even toed out, unlike most coincident designs where toe-out typically diffuses the image, giving more of an oval-shaped soundstage than a hard rectangular boundary. Horizontal and vertical directivity both hold to about ±50° at the -6dB point, so tonality stays consistent across roughly a 100° listening cone. The extended bass shelf is deliberately tuned for near-wall/boundary placement rather than the usual “pull it 3 feet into the room” advice, playing lower without excess boominess when placed close to a wall. At $1,000 (a frequent sale price versus $1,600 list), called a no-brainer for a compact stand-mount speaker. Independent ASR Klippel measurements corroborate this: very good directivity with the on- and off-axis curves tracking closely, and a predicted in-room response the reviewer called “very close to ideal.”

Cons: F3 of 67Hz and F10 of 42Hz mean it doesn’t get much below 50Hz in-room; a subwoofer is recommended for real bass. A 2-3dB scoop around 2-4kHz shows up in both the listening window and sound power measurements, matching a subjectively noticed lack of attack and vocal clarity that the reviewer wanted to correct with about 2dB of EQ. An on-axis diffraction dip around 8kHz smooths out with about 15° of toe-out (typical for concentric designs, but still present at 0°). Distortion is elevated at low frequencies since the single 5.25” cone shares surface area with the tweeter housing, reducing effective radiating area; multitone distortion crosses the 3% threshold at 96dB/1m, making roughly 88dB or below the safer output ceiling. Moderate sensitivity (~83dB average) needed 2-3dB more amplifier gain than typical in testing. Adding a subwoofer at an 80Hz crossover only helps lower-midrange distortion, not the elevated distortion in the 1-2kHz and above-5kHz regions. ASR’s own Klippel testing found the same pattern in starker terms: THD is very good at 86dB SPL/1m but climbs past 100% in the bass at 96dB SPL/1m, confirming this is not a near-field speaker for high-output bass-heavy material. Cumulative spectral decay (waterfall) also shows a couple of resonances lingering in the 1-2kHz region.

Full KEF LS50 Meta review and specifications →

Bass Extension (-10dB)43Hz (measured, Erin's Audio Corner)
Bass Extension (-3dB)68Hz (measured, Erin's Audio Corner)
Dimensions11.9"H x 7.9"W x 11"D (302 x 200 x 280.5 mm)
Drivers130 mm (5.25 in.) aluminium cone woofer, 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption tweeter
Impedance8 ohms nominal (3.7 ohms minimum above 80Hz, measured by Erin's Audio Corner)
Sensitivity83dB (measured average, Erin's Audio Corner; 85dB manufacturer specified)
Weight17.2 lbs / 7.8 kg each
Woofer Cabinetported, rear
Check current price at Amazon ($1,599.00) →Check current price at Crutchfield ($1599.99) →Search eBay for KEF LS50 Meta →

Parts Express C-Note: $100 Parts Express eBay

Parts Express C-Note ranking card

Pros: CEA2034 spinorama shows a reasonably flat response in the critical midrange with good directivity control near the crossover point, courtesy of a waveguide-integrated tweeter. High power handling let it play very loud in a large room with no sign of bottoming out - unusual for a $100 pair. The MDF cabinet felt stout in hand despite the unfinished, DIY flat-pack construction.

Cons: Reduced bass output and a resonance peak around 700Hz both show up clearly in the measurements; worst-case distortion above 1kHz sits about 40dB below listening level. Ships as unfinished MDF flat-pack cabinets, requiring assembly and finishing (gluing, painting or veneering) before use.

Full Parts Express C-Note review and specifications →

Bass Extension (-3dB)90Hz (measured, Audio Science Review) - the reviewer explicitly flagged this measurement as unreliable below 70Hz, so no -10dB figure is given
Dimensions11H x 7.5W x 9.5D in (unfinished MDF flat-pack)
DriversDayton Audio DSA135-8 5" woofer, Dayton ND25FW-4 1" soft dome tweeter (waveguide-loaded)
Frequency Response43Hz - 20kHz +/-3dB (Manufacturer specified)
Impedance8 ohms
Power Handling60W RMS / 120W max
Sensitivity83dB (2.83V/1m, measured, Audio Science Review)
Weightnot published (DIY kit)
Woofer Cabinetported
Check current price at Parts Express ($100) →Search eBay for Parts Express C-Note →