Short answer: the KEF Q100 for point-source imaging, the JBL Stage A130 for better-behaved directivity, though neither ranks well in its class. The Q100’s 5.25” Uni-Q keeps tweeter and woofer aligned, but its spinorama shows a 700Hz-1.5kHz lift, a 5kHz-and-up lift and a notch around 1.4kHz. The JBL holds a more constant pattern past its tweeter crossover, though it keeps the same “Batman” bass bump, midrange dip and a cabinet-resonance peak around 800Hz-1.7kHz. Both are rated below 3.0/5 among the 90 bookshelf speakers; for better sound, the Ascend Acoustics HTM-200SE2 ranks #7 at $368.
Buy the KEF Q100 only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the Ascend Acoustics HTM-200SE2 instead.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| KEF Q100 | JBL Stage A130 | |
|---|---|---|
| Price | $550 per pair Discontinued | $399 per pair Discontinued |
| Ranked | #71 of 90 in Medium Size Bookshelf Speakers | #78 of 90 in Medium Size Bookshelf Speakers |
| Bass Extension (-3dB) | 85Hz (measured, Audio Science Review) | 66Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 65Hz (measured, Audio Science Review) | 50Hz (measured, Erin’s Audio Corner) |
| Sensitivity | 85dB (2.83V/1m, measured, Audio Science Review) | 85.2dB (measured, Erin’s Audio Corner) |
| Impedance | 8 ohms nominal | 6 ohms nominal, about 4.3 ohms minimum (measured, Erin’s Audio Corner) |
| Frequency Response | 49Hz - 40kHz (+/-3dB) (Manufacturer specified) | - |
| Drivers | 5.25” Uni-Q aluminum coaxial driver, 1” aluminum dome tweeter | 5.25” (133mm) polycellulose woofer, 1” (25mm) aluminum dome tweeter |
| Weight | 13 lbs (5.9 kg) each | 12 lbs (5.45 kg) each |
| Dimensions | 11.8”H x 7.1”W x 10.7”D (300 x 180 x 272 mm) | 12.6”H x 7.5”W x 9.1”D (321 x 190 x 230 mm) |
| Woofer Cabinet | ported, rear | ported |
| Spinorama Preference Score | 4.96 (spinorama.org) | 4.04 |
| Spinorama Preference Score with Perfect Sub | 7.24 (spinorama.org) | 6.51 |
| DIY Kit | No | No |
| Crossover Frequency | - | 3.2kHz |
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The Two Speakers In Full
KEF Q100: $550 per pair Discontinued eBay
Newer model: the KEF Q1 Meta, ranked higher, rated 3.6/5.
Pros: 5.25” Uni-Q coaxial driver keeps the tweeter and woofer point-source aligned for consistent imaging. 86dB sensitivity is reasonably easy to drive. Measured bass extension of 85Hz (-3dB), with a measured sensitivity of 85dB.
Cons: CEA2034 spinorama shows broad, audible deviations from flat rather than narrow peaks: a lift from 700Hz-1.5kHz and again from 5kHz up, plus a cancellation notch around 1.4kHz from port/cabinet interaction. Bass sensitivity drops to about 80dB and impedance falls below 4 ohms in the bass, demanding a capable amplifier. The reviewer heard boomy, buzzing bass that improved somewhat with the port plugged, and could not recommend it, calling the famous reputation more about looks than sound. Discontinued.
Full KEF Q100 review and specifications →
| Bass Extension (-10dB) | 65Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 85Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 11.8”H x 7.1”W x 10.7”D (300 x 180 x 272 mm) |
| Drivers | 5.25” Uni-Q aluminum coaxial driver, 1” aluminum dome tweeter |
| Frequency Response | 49Hz - 40kHz (+/-3dB) (Manufacturer specified) |
| Impedance | 8 ohms nominal |
| Sensitivity | 85dB (2.83V/1m, measured, Audio Science Review) |
| Spinorama Preference Score | 4.96 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.24 (spinorama.org) |
| Weight | 13 lbs (5.9 kg) each |
| Woofer Cabinet | ported, rear |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
JBL Stage A130: $399 per pair Discontinued eBay
Newer model: the JBL Stage 250B, ranked higher, rated 3.2/5.
Pros: More constant, better-behaved directivity than the smaller A120 once past the tweeter crossover point, giving a more consistent radiation pattern that likely explains some of its positive reception among other reviewers. Distortion at 96dB measures slightly better than a direct competitor (Emotiva Airmotiv B1+) in the low end, though slightly worse at high frequencies. The tweeter itself sounded decent to the reviewer, who considers it a reasonable value at its price point despite other reservations. Wide, well-filled horizontal radiation through the midrange. Measured bass extension of 66Hz (-3dB), with a measured sensitivity of 85.2dB.
Cons: Still shows the same underlying “Batman”-shaped response pattern as the A120: a bass bump, a midrange dip, a cabinet-resonance peak around 800Hz-1.7kHz (confirmed via accelerometer testing on the cabinet panels), and roughly a 5dB treble bump around 10kHz. Does not include a port bung, so sealed-cabinet listening requires DIY stuffing rather than a proper factory solution. The reviewer’s own measurements notably diverge from another well-known publication’s results on this same model, possibly reflecting a running production change, though this couldn’t be confirmed. Overall sound quality struck the reviewer as not a good-sounding speaker despite the more favorable measurements relative to the A120. Output-limited at extreme volumes (102dB), similar to its smaller sibling. Loses to the similarly-priced Emotiva Airmotiv B1+ in overall linearity and neutrality, according to the reviewer’s direct comparison. Discontinued.
Full JBL Stage A130 review and specifications →
| Bass Extension (-10dB) | 50Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 66Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 3.2kHz |
| DIY Kit | No |
| Dimensions | 12.6”H x 7.5”W x 9.1”D (321 x 190 x 230 mm) |
| Drivers | 5.25” (133mm) polycellulose woofer, 1” (25mm) aluminum dome tweeter |
| Impedance | 6 ohms nominal, about 4.3 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 85.2dB (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 4.04 |
| Spinorama Preference Score with Perfect Sub | 6.51 |
| Weight | 12 lbs (5.45 kg) each |
| Woofer Cabinet | ported |
- Links
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