Short answer: the Ascend Acoustics ELX Ribbon Tower. It ranks #12 of 228 floorstanding speakers by sound quality, rated 4.6/5, at $5,698; the KEF R11 Meta ranks #46, rated 4.4/5, and costs $6,999.98, so there is little reason to consider the other one.
Why pick the KEF R11 Meta: Slim floorstanding speakers with accurate sound, very deep bass and extremely low distortion even when played loud, with excellent coaxial imaging. Watch for: A dip around 1-1.2kHz on-axis is attributed to a diffraction effect, and shows up as a smaller dip in the predicted in-room response.
The Ascend Acoustics ELX Ribbon Tower is the more accurate, deeper-bass pick. Highly accurate three way bamboo towers with a ribbon tweeter, deep tight bass and a long warranty. Its measured preference score, a predictor of how neutral it sounds, is 6.97 against 5.91 for the KEF R11 Meta. Its bass reaches about 38.7Hz before falling 3dB, against 64Hz for the KEF R11 Meta. The catch: Listening window smoothness measures a moderate 0.40 and on axis deviation runs 0.286dB average, both trailing the tighter figures posted by some smaller passive AsciLab and Ascend bookshelf models.
Buy the Ascend Acoustics ELX Ribbon Tower. It is rated higher for sound quality than the KEF R11 Meta and costs less, which makes it the one to get unless you need something the other one does better.
Still deciding? The full Passive Home rankings cover every ranked option.
Slim floorstanding speakers with accurate sound, very deep bass and extremely low distortion even when played loud, with excellent coaxial imaging.
Highly accurate three way bamboo towers with a ribbon tweeter, deep tight bass and a long warranty.
Prices on this page were last checked October 31, 2026 at 7:11 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.
As an eBay Partner, we may be compensated if you make a purchase.
Specifications Side By Side
| KEF R11 Meta | Ascend Acoustics ELX Ribbon Tower | |
|---|---|---|
| Price | $6,999.98 per pair | $5,698 per pair |
| Ranked | #46 of 228 in Large Size Floorstanding Speakers | #12 of 228 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 31Hz (measured, Audio Science Review) | 28.5Hz (measured, spinorama.org vendor data) |
| Bass Extension (-3dB) | 64Hz (measured, Audio Science Review) | 38.7Hz (measured, spinorama.org vendor data) |
| Dimensions | 51”H x 12.2”W x 15.1”D (1295.4 x 309.9 x 383.5 mm) | 43”H x 7.5”W x 10.5”D (1092 x 190 x 267 mm) |
| Impedance | 4 ohms | 8 ohms nominal |
| Drivers | 4 x 165 mm (6.5 in.) hybrid aluminium cone woofers, 125 mm (5 in.) aluminium cone midrange, 25 mm (1 in.) vented aluminium dome with MAT tweeter | RAAL 70-20xram ribbon tweeter, 6” SEAS Excel Curv midrange (sealed sub-chamber), 2x 6” SEAS Excel aluminum woofers |
| Sensitivity | 89.5dB | 87.5dB @ 2.83V/1m anechoic (manufacturer) |
| Weight | 80.5 lbs (36.5 kg) each | 56 lbs (25.4 kg) each |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 5.91 | 6.97 |
| Spinorama Preference Score with Perfect Sub | 7.32 | 8.42 |
| DIY Kit | No | No |
| Enclosure | - | ported |
| Power Handling | - | 400W continuous, 600W peak |
| Frequency Response | - | 36-27,000Hz +/-3dB anechoic (manufacturer) |
| Warranty | - | 7 years parts and labor |
| Country | - | United States |
Related Speaker Comparisons
How Ascend Acoustics ELX Ribbon Tower compares with other leading options:
- Ascend Acoustics ELX Ribbon Tower vs KEF Blade Two Meta
- MoFi SourcePoint V10 Master Edition vs Ascend Acoustics ELX Ribbon Tower
- MoFi SourcePoint 888 vs Ascend Acoustics ELX Ribbon Tower
- Ascend Acoustics ELX Ribbon Tower vs Revel F328Be
- Radiant Acoustics Clarity 66 vs Ascend Acoustics ELX Ribbon Tower