Short answer: the JBL Stage A120 on ranking, the Polk T15 on price, though neither ranks well in its class. The T15 costs $149 against $299 and is an extremely affordable 2-way that measured better at +/-20 degrees vertical off-axis than on-axis, but spinorama analysis reveals what Amir called a “horrific drop in upper mids/lower treble region of 3 to 6 kHz” from tweeter-woofer phase cancellation. The A120 places #69 of 90 against #81 of 90. Both are rated below 3.0/5 among the 90 bookshelf speakers, so if sound quality matters, consider the Ascend Acoustics HTM-200SE2 instead, ranked #7 at $368.
Buy the Polk T15 if you want one new; the JBL Stage A120 is discontinued, so only look for it used.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| JBL Stage A120 | Polk T15 | |
|---|---|---|
| Price | $299 per pair Discontinued | $149.00 per pair |
| Ranked | #69 of 90 in Medium Size Bookshelf Speakers | #81 of 90 in Medium Size Bookshelf Speakers |
| Drivers | 0.75” tweeter + 5” woofer | 0.75” tweeter, 5.25” woofer |
| Weight | 10.6 lbs (4.8 kg) | 8.2 lbs (3.74 kg) each |
| Woofer Cabinet | ported | - |
| Sensitivity | 83dB (measured, Erin’s Audio Corner) | 89dB (manufacturer specified, 1W/1m); 88.98dB measured, spinorama.org |
| Impedance | 6 ohms | 8 ohms nominal |
| Dimensions | 11.3”H x 6.8”W x 7.4”D (285.8 x 171.5 x 188.9 mm) | 10.63H x 6.5W x 7.25D in |
| Bass Extension (-3dB) | 71Hz (measured, Erin’s Audio Corner) | 88.6Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 53Hz (measured, Erin’s Audio Corner) | 58.1Hz (measured, Audio Science Review) |
| Spinorama Preference Score | 3.50 | 0.34 |
| Spinorama Preference Score with Perfect Sub | 6.24 | 3.39 |
| DIY Kit | No | No |
| Frequency Response | - | 60Hz - 24kHz (Manufacturer specified) |
Related Speaker Comparisons
How JBL Stage A120 compares with other leading options:
- JBL Stage A120 vs Ascend Sierra 1 v2
- KEF LS50 Meta vs JBL Stage A120
- JBL Stage A120 vs Arendal 1961 Monitor
- JBL Stage A120 vs Revel M105
- JBL Stage A120 vs Klipsch RP-500M II
Prices on this page were last checked October 2, 2026 at 10:18 PM 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 Stage A120: $299 per pair Discontinued eBay
Newer model: the JBL Stage 2 240B. It’s likely to perform similarly, though we don’t have measurements to confirm that yet.
Pros: Comes with a port bung, letting you experiment between ported and sealed configurations: the reviewer found the sound improved somewhat with the port sealed. Distortion at 96dB is broadly comparable to competitors in this price range outside of some elevated low-end THD. Wide horizontal radiation pattern for a compact bookshelf speaker in the low-to-midrange. Measured bass extension of 71Hz (-3dB), with a measured sensitivity of 83dB.
Cons: A pronounced “Batman”-shaped frequency response: boosted bass, a scooped midrange, and elevated treble (about 3-4dB above the midrange), driven partly by confirmed cabinet panel resonance around 800Hz-1.7kHz. Directivity shows significant back-to-back peaks and dips, making the speaker harder to correct with EQ since the off-axis sound doesn’t track the direct sound cleanly. Elevated treble that some might call “detailed” reads as an unwelcome boost to the reviewer rather than genuine resolution. Compression testing shows the low end degrading substantially at high output (102dB). Overall considered one of the weaker speakers the reviewer has tested in this class, with a competing model (Emotiva Airmotiv B1+) recommended instead at a similar price. Discontinued.
Full JBL Stage A120 review and specifications →
| Bass Extension (-10dB) | 53Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 71Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 11.3”H x 6.8”W x 7.4”D (285.8 x 171.5 x 188.9 mm) |
| Drivers | 0.75” tweeter + 5” woofer |
| Impedance | 6 ohms |
| Sensitivity | 83dB (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 3.50 |
| Spinorama Preference Score with Perfect Sub | 6.24 |
| Weight | 10.6 lbs (4.8 kg) |
| Woofer Cabinet | ported |
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Polk T15: $149.00 per pair Amazon eBay
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. Measured bass extension of 88.6Hz (-3dB), with a measured sensitivity of 89dB.
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 →
| Bass Extension (-10dB) | 58.1Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 88.6Hz (measured, Audio Science Review) |
| DIY Kit | No |
| 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 |
| Sensitivity | 89dB (manufacturer specified, 1W/1m); 88.98dB measured, spinorama.org |
| Spinorama Preference Score | 0.34 |
| Spinorama Preference Score with Perfect Sub | 3.39 |
| Weight | 8.2 lbs (3.74 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons