Short answer: the MoFi SourcePoint 888. It ranks #8 of 188 floorstanding speakers by sound quality, rated 4.7/5, at $5,495. The JBL HDI-3600 ranks #58, rated 4.3/5, at $3,800, $1,695 cheaper, which does not close the gap in sound quality.
The case for the JBL HDI-3600: CEA2034 spinorama shows a fairly even on-axis response and flat overall frequency response, with high 90dB sensitivity and very low distortion through the midrange. The catch: A wide shelving-down above 2kHz affects the in-room response, and vertical dispersion is a bigger issue than horizontal: the reviewer noted the dip is wider here than on the smaller JBL HDI-1600, making it more audible.
The MoFi SourcePoint 888 is the more accurate, deeper-bass pick. 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. Its measured preference score, a predictor of how neutral it sounds, is 6.09 against 4.64 for the JBL HDI-3600. Its bass reaches about 34Hz before falling 3dB, against 78Hz for the JBL HDI-3600. The catch: A significant investment, best ordered from a dealer with a good return policy.
Buy the MoFi SourcePoint 888. It is rated higher for sound quality, and saving $1,695 with the JBL HDI-3600 does not make up for the sound-quality gap.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| JBL HDI-3600 | MoFi SourcePoint 888 | |
|---|---|---|
| Price | $3800 per pair | $5495 per pair |
| Ranked | #58 of 188 in Large Size Floorstanding Speakers | #8 of 188 in Large Size Floorstanding Speakers |
| Bass Extension (-3dB) | 78Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review) | 34Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 62Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review) | 26Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 89.5dB (2.83V/1m, measured, Audio Science Review) | 85.6dB (measured, Erin’s Audio Corner) |
| Impedance | 4 ohms nominal | 6 ohms nominal, 5 ohms minimum (measured, Erin’s Audio Corner) |
| Frequency Response | 38Hz - 30kHz (+/-3dB) (Manufacturer specified) | - |
| Drivers | 2410H-2 1” compression driver, 3x 6.5” Advanced Aluminum Matrix woofers | Dual 8” paper cone woofers, 8” Paper Cone midrange, 1.25” wide roll soft dome tweeter |
| Weight | 61.7 lbs (28 kg) each | 94.8 lbs (43 kg) each |
| Dimensions | 40.5”H x 10.2”W x 13.5”D (1029 x 260 x 343 mm) | 41.2”H x 12.6”W x 16.1”D (1046.5 x 320 x 408.9 mm) |
| Woofer Cabinet | ported, dual rear-firing | ported, rear |
| Spinorama Preference Score | 4.64 (spinorama.org) | 6.09 |
| Spinorama Preference Score with Perfect Sub | 6.95 (spinorama.org) | 7.21 |
| DIY Kit | No | No |
Related Speaker Comparisons
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Prices on this page were last checked October 9, 2026 at 8:01 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
JBL HDI-3600: $3800 per pair Audio Advice eBay
Same family: the JBL HDI-1600 (bookshelf, rated 4.2/5), the JBL HDI-3800 (larger floorstanding, ranked higher, rated 4.5/5) and the JBL HDI-4500 (center, rated 3.7/5).
Pros: CEA2034 spinorama shows a fairly even on-axis response and flat overall frequency response, with high 90dB sensitivity and very low distortion through the midrange. Triple 6.5” Advanced Aluminum Matrix woofers and a 1” compression driver in JBL’s HDI waveguide. Measured bass extension of 78Hz (-3dB), with a measured sensitivity of 89.5dB.
Cons: A wide shelving-down above 2kHz affects the in-room response, and vertical dispersion is a bigger issue than horizontal: the reviewer noted the dip is wider here than on the smaller JBL HDI-1600, making it more audible. Narrow vertical sweet spot means careful listener-height positioning matters more than usual.
Full JBL HDI-3600 review and specifications →
| Bass Extension (-10dB) | 62Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 78Hz - the on-axis curve also shows an unusual step/dip around 40-55Hz that may be a near-field-scan artifact for this tower (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 40.5”H x 10.2”W x 13.5”D (1029 x 260 x 343 mm) |
| Drivers | 2410H-2 1” compression driver, 3x 6.5” Advanced Aluminum Matrix woofers |
| Frequency Response | 38Hz - 30kHz (+/-3dB) (Manufacturer specified) |
| Impedance | 4 ohms nominal |
| Sensitivity | 89.5dB (2.83V/1m, measured, Audio Science Review) |
| Spinorama Preference Score | 4.64 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.95 (spinorama.org) |
| Weight | 61.7 lbs (28 kg) each |
| Woofer Cabinet | ported, dual rear-firing |
- Links
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MoFi SourcePoint 888: $5495 per pair Crutchfield eBay
Same family: the MoFi SourcePoint 8 (smaller bookshelf, rated 4.5/5) and the MoFi SourcePoint 10 (larger bookshelf, rated 4.4/5).
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 Two 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 Two 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) |
| DIY Kit | No |
| 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 | 6.09 |
| Spinorama Preference Score with Perfect Sub | 7.21 |
| 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 Revel F328Be
- MoFi SourcePoint 888 vs Radiant Acoustics Clarity 66
- MoFi SourcePoint 888 vs MoFi SourcePoint V10 Master Edition
- MoFi SourcePoint 888 vs Ascend Acoustics ELX Ribbon Tower
- MoFi SourcePoint 888 vs KEF Blade Two Meta
- MoFi SourcePoint 888 vs GR-Research NX-Treme
- MoFi SourcePoint 888 vs KEF R5 Meta
- MoFi SourcePoint 888 vs Revel F226Be
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