Short answer: the MoFi SourcePoint 888. It ranks #4 of 71 floorstanding speakers by sound quality at $5495; the Ascend Acoustics ELX Ribbon Tower ranks #6 and costs $5698, so there is little reason to consider the other one.
What the MoFi SourcePoint 888 offers: Three-way vented design: an 8” coaxial mid-range/1.25” dome tweeter driver plus two additional 8” woofers crossed at about 130Hz, giving genuinely full-range output (F3 34Hz, F10 26Hz) other than the deepest subsonic content. Ranked by the reviewer among his personal top three speakers out of roughly 200 tested, alongside the KEF Blade 2 Meta and Dutch & Dutch 8C, despite costing a small fraction of either. Excellent compression/dynamic-range linearity, holding its own against much pricier speakers like the March Audio Sointuva AWG, KEF Reference 1 Meta, and KEF Blade 2 Meta. On-axis (0°) and 30°-off-axis estimated in-room responses track within about 1-1.5dB of each other above 500Hz, so tonal balance barely changes with placement or listening angle - excellent for multi-seat home theater or entertaining. Wide horizontal dispersion of about ±60°. Distortion stays low: under 1% at 86dB, and under 1% above 200Hz even at 96dB, with multitone distortion mostly under 1% as well. Not a difficult amplifier load (5-ohm minimum impedance, 4.2-ohm minimum EPDR). Checks the three boxes the reviewer considers essential for a home theater speaker: low compression, low distortion, and excellent directivity. Watch for: A significant investment, best ordered from a dealer with a good return policy. Large and heavy floorstander (about 96 lbs, 42” tall) requiring real floor space and rear clearance. Positioning is fairly specific: needs about 2 feet from the rear wall - closer causes boominess in the 40-50Hz region, farther loses bass extension. Vertical dispersion (about ±50°) is narrower than horizontal (about ±60°), since the two 8” woofers are spaced vertically apart on a tower cabinet, causing some vertical mismatch at lower frequencies. A small on-axis dip around 500Hz and a deliberately lower tweeter level (about 0.5dB below the midrange) are intentional design choices for smoother in-room response, but mean the raw on-axis measurement isn’t perfectly flat. A mild diffraction-related dip appears around 3kHz in directivity measurements. Toeing the speaker out more than about 10° starts to noticeably reduce top-end energy.
What the Ascend Acoustics ELX Ribbon Tower offers: A RAAL 70-20xram ribbon tweeter and dual SEAS Excel aluminum woofers in a 3-way, 4-driver bamboo tower measure a genuine 38.7Hz extension point with a nearly flat on axis slope of 0.05dB per octave, among the best measured towers in this batch. The bass alignment Q of 0.62 keeps the low end well damped rather than peaky. Backed by a 7 year parts and labor warranty and hand assembled in Orange County, California, with each pair matched within +/-1.5dB. Watch for: Listening window smoothness measures a moderate 0.40 and on axis deviation runs 0.286dB average, both trailing the tighter figures posted by some of the passive AsciLab and Ascend bookshelf models in this same batch. At $5,698/pair it is Ascend’s most expensive tower, well above the Titan dome tweeter version of the same cabinet. The manufacturer’s own claimed sensitivity (87.5dB) runs nearly 1.5dB higher than the independently measured average (86.1dB), worth accounting for when matching an amplifier.
Buy the MoFi SourcePoint 888. It ranks higher for sound quality than the Ascend Acoustics ELX Ribbon Tower and costs less, so there is no real case for the other one.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| MoFi SourcePoint 888 | Ascend Acoustics ELX Ribbon Tower | |
|---|---|---|
| Price | $5495 per pair | $5,698 per pair |
| Ranked | #4 of 71 in Large Size Floorstanding Speakers | #6 of 71 in Large Size Floorstanding Speakers |
| Bass Extension (-10dB) | 26Hz (measured, Erin's Audio Corner) | 28.5Hz (measured, spinorama.org vendor data) |
| Bass Extension (-3dB) | 34Hz (measured, Erin's Audio Corner) | 38.7Hz (measured, spinorama.org vendor data) |
| Dimensions | 41.2"H x 12.6"W x 16.1"D (1046.5 x 320 x 408.9 mm) | 43"H x 7.5"W x 10.5"D (1092 x 190 x 267 mm) |
| Impedance | 6 ohms nominal, 5 ohms minimum (measured, Erin's Audio Corner) | 8 ohms nominal |
| Drivers | Dual 8" paper cone woofers, 8" Paper Cone midrange, 1.25" wide roll soft dome tweeter | RAAL 70-20xram ribbon tweeter, 6" SEAS Excel Curv midrange (sealed sub-chamber), 2x 6" SEAS Excel aluminum woofers |
| Sensitivity | 85.6dB (measured, Erin's Audio Corner) | 87.5dB @ 2.83V/1m anechoic (manufacturer) |
| Weight | 94.8 lbs (43 kg) each | 56 lbs (25.4 kg) each |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 5.21 | 6.36 |
| Spinorama Preference Score with Perfect Sub | 6.33 | 7.81 |
| 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 MoFi SourcePoint 888 compares with other leading options:
- GR-Research NX-Treme vs MoFi SourcePoint 888
- KEF Blade Two Meta vs MoFi SourcePoint 888
- MoFi SourcePoint 888 vs MoFi SourcePoint V10 Master Edition
- Radiant Acoustics Clarity 66 vs MoFi SourcePoint 888
- MoFi SourcePoint 888 vs JBL HDI-3800
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
MoFi SourcePoint 888: $5495 per pair Crutchfield eBay
Pros: Three-way vented design: an 8” coaxial mid-range/1.25” dome tweeter driver plus two additional 8” woofers crossed at about 130Hz, giving genuinely full-range output (F3 34Hz, F10 26Hz) other than the deepest subsonic content. Ranked by the reviewer among his personal top three speakers out of roughly 200 tested, alongside the KEF Blade 2 Meta and Dutch & Dutch 8C, despite costing a small fraction of either. Excellent compression/dynamic-range linearity, holding its own against much pricier speakers like the March Audio Sointuva AWG, KEF Reference 1 Meta, and KEF Blade 2 Meta. On-axis (0°) and 30°-off-axis estimated in-room responses track within about 1-1.5dB of each other above 500Hz, so tonal balance barely changes with placement or listening angle - excellent for multi-seat home theater or entertaining. Wide horizontal dispersion of about ±60°. Distortion stays low: under 1% at 86dB, and under 1% above 200Hz even at 96dB, with multitone distortion mostly under 1% as well. Not a difficult amplifier load (5-ohm minimum impedance, 4.2-ohm minimum EPDR). Checks the three boxes the reviewer considers essential for a home theater speaker: low compression, low distortion, and excellent directivity. Measured bass extension of 34Hz (-3dB), with a measured sensitivity of 85.6dB.
Cons: A significant investment, best ordered from a dealer with a good return policy. Large and heavy floorstander (about 96 lbs, 42” tall) requiring real floor space and rear clearance. Positioning is fairly specific: needs about 2 feet from the rear wall - closer causes boominess in the 40-50Hz region, farther loses bass extension. Vertical dispersion (about ±50°) is narrower than horizontal (about ±60°), since the two 8” woofers are spaced vertically apart on a tower cabinet, causing some vertical mismatch at lower frequencies. A small on-axis dip around 500Hz and a deliberately lower tweeter level (about 0.5dB below the midrange) are intentional design choices for smoother in-room response, but mean the raw on-axis measurement isn’t perfectly flat. A mild diffraction-related dip appears around 3kHz in directivity measurements. Toeing the speaker out more than about 10° starts to noticeably reduce top-end energy.
Full MoFi SourcePoint 888 review and specifications →
| Bass Extension (-10dB) | 26Hz (measured, Erin's Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 34Hz (measured, Erin's Audio Corner) |
| Dimensions | 41.2"H x 12.6"W x 16.1"D (1046.5 x 320 x 408.9 mm) |
| Drivers | Dual 8" paper cone woofers, 8" Paper Cone midrange, 1.25" wide roll soft dome tweeter |
| Impedance | 6 ohms nominal, 5 ohms minimum (measured, Erin's Audio Corner) |
| Sensitivity | 85.6dB (measured, Erin's Audio Corner) |
| Spinorama Preference Score | 5.21 |
| Spinorama Preference Score with Perfect Sub | 6.33 |
| Weight | 94.8 lbs (43 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- MoFi SourcePoint 888 vs MoFi SourcePoint V10 Master Edition
- MoFi SourcePoint 888 vs Radiant Acoustics Clarity 66
- MoFi SourcePoint 888 vs KEF Blade Two Meta
- MoFi SourcePoint 888 vs GR-Research NX-Treme
- MoFi SourcePoint 888 vs JBL HDI-3800
- MoFi SourcePoint 888 vs Revel F328Be
- MoFi SourcePoint 888 vs KEF R5 Meta
- MoFi SourcePoint 888 vs KEF R5
- See all 35 comparisons
Ascend Acoustics ELX Ribbon Tower: $5,698 per pair Ascend Acoustics eBay
Pros: A RAAL 70-20xram ribbon tweeter and dual SEAS Excel aluminum woofers in a 3-way, 4-driver bamboo tower measure a genuine 38.7Hz extension point with a nearly flat on axis slope of 0.05dB per octave, among the best measured towers in this batch. The bass alignment Q of 0.62 keeps the low end well damped rather than peaky. Backed by a 7 year parts and labor warranty and hand assembled in Orange County, California, with each pair matched within +/-1.5dB. Measured bass extension of 38.7Hz (-3dB).
Cons: Listening window smoothness measures a moderate 0.40 and on axis deviation runs 0.286dB average, both trailing the tighter figures posted by some of the passive AsciLab and Ascend bookshelf models in this same batch. At $5,698/pair it is Ascend’s most expensive tower, well above the Titan dome tweeter version of the same cabinet. The manufacturer’s own claimed sensitivity (87.5dB) runs nearly 1.5dB higher than the independently measured average (86.1dB), worth accounting for when matching an amplifier.
Full Ascend Acoustics ELX Ribbon Tower review and specifications →
| Bass Extension (-10dB) | 28.5Hz (measured, spinorama.org vendor data) |
|---|---|
| Bass Extension (-3dB) | 38.7Hz (measured, spinorama.org vendor data) |
| Country | United States |
| Dimensions | 43"H x 7.5"W x 10.5"D (1092 x 190 x 267 mm) |
| Drivers | RAAL 70-20xram ribbon tweeter, 6" SEAS Excel Curv midrange (sealed sub-chamber), 2x 6" SEAS Excel aluminum woofers |
| Enclosure | ported |
| Frequency Response | 36-27,000Hz +/-3dB anechoic (manufacturer) |
| Impedance | 8 ohms nominal |
| Power Handling | 400W continuous, 600W peak |
| Sensitivity | 87.5dB @ 2.83V/1m anechoic (manufacturer) |
| Spinorama Preference Score | 6.36 |
| Spinorama Preference Score with Perfect Sub | 7.81 |
| Warranty | 7 years parts and labor |
| Weight | 56 lbs (25.4 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Ascend Acoustics ELX Ribbon Tower vs JBL HDI-3800
- Ascend Acoustics ELX Ribbon Tower vs Radiant Acoustics Clarity 66
- Ascend Acoustics ELX Ribbon Tower vs Revel F328Be
- Ascend Acoustics ELX Ribbon Tower vs MoFi SourcePoint V10 Master Edition
- Ascend Acoustics ELX Ribbon Tower vs KEF Blade Two Meta
- Ascend Acoustics ELX Ribbon Tower vs Revel F226Be
- Ascend Acoustics ELX Ribbon Tower vs JBL 4367
- Ascend Acoustics ELX Ribbon Tower vs Revel F228Be
- See all 24 comparisons