Short answer: the JBL Stage A130 for better sound quality, the Polk T15 for the lower price. The JBL Stage A130 ranks #44 of 56 bookshelf speakers at $399. The Polk T15 ranks #47 at $149, $250 cheaper.
On the JBL Stage A130 side: 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. Set against that: 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).
The case for the Polk T15: Extremely affordable 2-way design that actually measured better at +/-20 degrees vertical off-axis than directly on-axis. The tradeoff: Spinorama analysis reveals what Amir called a “horrific drop in upper mids/lower treble region of 3 to 6 kHz,” likely from tweeter-woofer phase cancellation directly on-axis.
Buy the JBL Stage A130 if sound quality matters more than the price. Buy the Polk T15 if the price matters more than sound quality.
If sound quality matters at all to you, skip both of these and look higher up the 56 bookshelf speakers instead.
Specifications Side By Side
| JBL Stage A130 | Polk T15 | |
|---|---|---|
| Price | $399 Discontinued | $149.00 |
| Ranked | #44 of 56 in Medium Size Bookshelf Speakers | #47 of 56 in Medium Size Bookshelf Speakers |
| Crossover Frequency | 3.2kHz | - |
| Dimensions | 12.6"H x 7.5"W x 9.1"D (321 x 190 x 230 mm) | 10.63H x 6.5W x 7.25D in |
| Impedance | 6 ohms nominal, about 4.3 ohms minimum (measured, Erin’s Audio Corner) | 8 ohms nominal |
| Sensitivity | 85.2dB (measured, Erin’s Audio Corner) | - |
| Drivers | 5.25" (133mm) polycellulose woofer, 1" (25mm) aluminum dome tweeter | 0.75" tweeter, 5.25" woofer |
| Discontinued | Yes | - |
| Weight | 12 lbs / 5.45 kg each | 8.2 lbs / 3.74 kg each |
| Woofer Cabinet | ported | - |
| Bass Extension (-3dB) | 66Hz (measured, Erin’s Audio Corner) | - |
| Bass Extension (-10dB) | 50Hz (measured, Erin’s Audio Corner) | - |
| Frequency Response | - | 60Hz - 24kHz (Manufacturer specified) |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Q Acoustics 3020i vs Definitive Technology ProMonitor 1000
- Q Acoustics 3020i vs Fluance Signature HFS
- JBL Stage A120 vs Fluance Signature HFS
- JBL Stage A130 vs Klipsch R-41M
- Micca RB42 vs JBL Stage A130
The Two Speakers In Full
JBL Stage A130: $399 Discontinued
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.
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 |
| Dimensions | 12.6"H x 7.5"W x 9.1"D (321 x 190 x 230 mm) |
| Discontinued | Yes |
| 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) |
| Weight | 12 lbs / 5.45 kg each |
| Woofer Cabinet | ported |
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- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- JBL Stage A130 vs Fluance Signature HFS
- JBL Stage A130 vs JBL Control 1 Pro
- JBL Stage A130 vs Q Acoustics 5020
- JBL Stage A130 vs Micca RB42
- JBL Stage A130 vs Definitive Technology ProMonitor 1000
- JBL Stage A130 vs Q Acoustics 3020i
- JBL Stage A130 vs KEF Q100
- JBL Stage A130 vs ELAC Uni-Fi 2.0 UB52
- See all 20 comparisons
Polk T15: $149.00 Amazon
Pros: Extremely affordable 2-way design that actually measured better at +/-20 degrees vertical off-axis than directly on-axis. In near-field desktop use, the reviewer found the T15 “didn’t sound that horrible,” partly because nearby desk reflections mask the frequency response dip.
Cons: Spinorama analysis reveals what Amir called a “horrific drop in upper mids/lower treble region of 3 to 6 kHz,” likely from tweeter-woofer phase cancellation directly on-axis. Measured impedance ranges from 4-8 ohms, contradicting the specified 6-8 ohm range, and there’s a distortion peak around 400Hz. On- and off-axis response “vary a ton,” making listening position unusually important. The reviewer recommends saving up for the Pioneer SP-BS22-LR instead: “I can’t justify recommending the Polk T15 even though subjective performance was not horrible.”
Full Polk T15 review and specifications →
| Dimensions | 10.63H x 6.5W x 7.25D in |
|---|---|
| Drivers | 0.75" tweeter, 5.25" woofer |
| Frequency Response | 60Hz - 24kHz (Manufacturer specified) |
| Impedance | 8 ohms nominal |
| Weight | 8.2 lbs / 3.74 kg each |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons