Short answer: the MoFi SourcePoint 8. It ranks #17 of 203 bookshelf speakers by sound quality (rated 4.5/5) at $2,594 and is still sold new; the JBL XPL-90 ranks #166 (rated 3.1/5) and is discontinued, so it is only an option used.
The MoFi SourcePoint 8 is the more accurate, deeper-bass pick. 8” twin-drive concentric driver paired with a 1.25” soft dome tweeter, in a diffraction-reducing baffle design; rated 47Hz-30kHz. Its measured preference score, a predictor of how neutral it sounds, is 5.15 against 3.70 for the JBL XPL-90. Its bass reaches about 52Hz before falling 3dB, against 77.6Hz for the JBL XPL-90. Watch for: Like other coincident designs, produces diffraction dips around 4kHz and 7kHz when pointed directly on-axis; needs about 10-15° of toe-out to smooth those out.
The case for the JBL XPL-90: Nearly ruler-flat on-axis response up to 1kHz with even horizontal directivity until the tweeter beams above 10kHz. The tradeoff: Crossover region peaking around 3kHz and treble peaking above 10kHz color the top end, and poor vertical directivity means the tweeter needs to be at ear level.
Buy the MoFi SourcePoint 8. It is rated higher for sound quality, and the JBL XPL-90 is discontinued, so it is only available used.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| MoFi SourcePoint 8 | JBL XPL-90 | |
|---|---|---|
| Price | $2594 per pair | $1,298 per pair used (vintage, late 1980s), Discontinued |
| Ranked | #17 of 203 in Large Size Bookshelf Speakers | #166 of 203 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) | 48.7Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 52Hz (measured, Erin’s Audio Corner) | 77.6Hz (measured, Audio Science Review) |
| Dimensions | 18”H x 11.4”W x 13.2”D (457.2 x 289.6 x 335.3 mm) | 15.5”H x 9.5”W x 9.8”D (394 x 241 x 248 mm) |
| Impedance | 8 ohms nominal (8 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 6 ohms |
| Sensitivity | 86.3dB (measured, Erin’s Audio Corner) | 85dB (2.83V/1m, measured, Audio Science Review) |
| Drivers | 8” woofer, 1.25-inch soft-dome tweeter | 6.5” bass/mid driver, 1” titanium dome tweeter |
| Weight | 28 lbs (12.7 kg) each | 20.1 lbs (9.1 kg) each |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 5.15 | 3.7 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.28 | 6.31 (spinorama.org) |
| DIY Kit | No | No |
| Power Handling | - | 100W nominal, 400W max |
Related Speaker Comparisons
How MoFi SourcePoint 8 compares with other leading options:
- MoFi SourcePoint 8 vs Perlisten S4b
- MoFi SourcePoint 8 vs KEF Reference 1 Meta
- MoFi SourcePoint 8 vs GR-Research NX-Studio
- MoFi SourcePoint 8 vs March Audio Sointuva AWG
- MoFi SourcePoint 8 vs AsciLab C6B
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The Two Speakers In Full
MoFi SourcePoint 8: $2594 per pair Crutchfield eBay
Same family: the MoFi SourcePoint 10 (larger bookshelf, ranked lower, rated 4.4/5) and the MoFi SourcePoint 888 (floorstanding, rated 4.7/5).
Pros: 8” twin-drive concentric driver paired with a 1.25” soft dome tweeter, in a diffraction-reducing baffle design; rated 47Hz-30kHz. Notably more neutral and true-to-source than its sibling MoFi SourcePoint 10, which the reviewer found a bit too bright in the treble by comparison: measured about 4-5dB less high-frequency output. Excellent imaging: passed multiple stereo-panning and depth tests, including smooth continuous left-to-right pans without wobble and correct front-to-back layering of vocals versus percussion. Wide horizontal dispersion of about ±60°, broader than the reviewer expected from a coaxial design, and forgiving enough in placement that about 10° of toe-out variance and moving above or below the tweeter axis both still sound good. Excellent dynamic range and compression linearity: about 26dB of headroom up to 102dB/1m equivalent, with issues only appearing below about 60Hz. 8-ohm nominal impedance made it easy to drive on everything from a budget Denon AVR to a high-end Macintosh amplifier. No significant evidence of woofer-cone modulation distortion affecting the tweeter, even at 96dB/1m. Measured bass extension of 52Hz (-3dB), with a measured sensitivity of 86.3dB.
Cons: Like other coincident designs, produces diffraction dips around 4kHz and 7kHz when pointed directly on-axis; needs about 10-15° of toe-out to smooth those out. The rear-ported cabinet (two ports) means it can’t be placed too close to a wall without the bass becoming overblown: the reviewer settled on about 2 feet of clearance. F3 of 52Hz and F10 of 43Hz mean genuine deep bass tops out in the mid-40s Hz in-room: a subwoofer is still needed for true low-end extension. Harmonic distortion crosses the reviewer’s 3% threshold at 96dB (though it’s second-order and less audibly significant), and multitone distortion becomes noticeably more audible at that same output level. Vertical response doesn’t perfectly mirror horizontal, since the cabinet is a rectangle rather than a perfect square around the driver.
Full MoFi SourcePoint 8 review and specifications →
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 52Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 18”H x 11.4”W x 13.2”D (457.2 x 289.6 x 335.3 mm) |
| Drivers | 8” woofer, 1.25-inch soft-dome tweeter |
| Impedance | 8 ohms nominal (8 ohms minimum above 80Hz, measured, Erin’s Audio Corner) |
| Sensitivity | 86.3dB (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.15 |
| Spinorama Preference Score with Perfect Sub | 7.28 |
| Weight | 28 lbs (12.7 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Why Do People Love the MoFi SourcePoint 8? More from Erin’s Audio Corner →
- Erin’s Audio Corner Website MoFi SourcePoint 8
- Erin’s Audio Corner: Upgrade Your Sound with These 6 Surprisingly Affordable Speakers!
- Erin’s Audio Corner: My Personal Favorite Speakers Under $2500
- Erin’s Audio Corner: My Top Picks of 2023: Must-Haves Under $3000
- GR-Research: Danny Tackles Andrews Jones: The Source Point 8! Spoiler Alert (It’s Really Good) More from GR-Research →
- Erin’s Audio Corner Measurements (spinorama.org)
- Head-to-Head Comparisons
- MoFi SourcePoint 8 vs Buchardt Audio E50
- MoFi SourcePoint 8 vs KEF R3
- MoFi SourcePoint 8 vs Epos ES14N
- MoFi SourcePoint 8 vs AsciLab F6Bs
- MoFi SourcePoint 8 vs Wharfedale Aura 2
- MoFi SourcePoint 8 vs KEF Q Concerto Meta
- MoFi SourcePoint 8 vs Arendal 1528 Monitor 8
- MoFi SourcePoint 8 vs KEF R3 Meta
- See all 59 comparisons
JBL XPL-90: $1,298 per pair used (vintage, late 1980s) Discontinued eBay
Pros: Nearly ruler-flat on-axis response up to 1kHz with even horizontal directivity until the tweeter beams above 10kHz. The reviewer found real strength with vocals and simpler instrumentation, calling it “the first speaker I have liked that has some clear response errors” and “an enjoyable speaker” despite the flaws. Titanium tweeter and internal Monster cable wiring reflect JBL’s higher-end late-1980s engineering. Measured bass extension of 77.6Hz (-3dB), with a measured sensitivity of 85dB.
Cons: Crossover region peaking around 3kHz and treble peaking above 10kHz color the top end, and poor vertical directivity means the tweeter needs to be at ear level. Distortion rises at 96dB SPL, especially around 3kHz. Long discontinued; only available on the used market.
Full JBL XPL-90 review and specifications →
| Bass Extension (-10dB) | 48.7Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 77.6Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 15.5”H x 9.5”W x 9.8”D (394 x 241 x 248 mm) |
| Drivers | 6.5” bass/mid driver, 1” titanium dome tweeter |
| Impedance | 6 ohms |
| Power Handling | 100W nominal, 400W max |
| Sensitivity | 85dB (2.83V/1m, measured, Audio Science Review) |
| Spinorama Preference Score | 3.7 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.31 (spinorama.org) |
| Weight | 20.1 lbs (9.1 kg) each |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons