Short answer: the Pioneer SP-BS22-LR in Philharmonic AAM form, narrowly, though neither ranks well in its class. Both are budget monitors with directivity caveats, but the JBL Stage A130 carries a bass bump, a midrange dip, and a cabinet-resonance peak around 800Hz-1.7kHz confirmed by accelerometer testing. The Philharmonic AAM mod of the discontinued Pioneer, at $168 against $399, answers only for some directivity error near the crossover. Both are rated below 3.0/5 among the 90 bookshelf speakers, and the Ascend Acoustics HTM-200SE2, ranked #7 at $368, is a better place to start if sound quality matters.
Buy the Pioneer SP-BS22-LR (Philharmonic AAM Mod) 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
| Pioneer SP-BS22-LR (Philharmonic AAM Mod) | JBL Stage A130 | |
|---|---|---|
| Price | $168 per pair Discontinued | $399 per pair Discontinued |
| Ranked | #63 of 90 in Medium Size Bookshelf Speakers | #78 of 90 in Medium Size Bookshelf Speakers |
| Bass Extension (-3dB) | 78Hz (measured, Audio Science Review) | 66Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 60Hz (measured, Audio Science Review) | 50Hz (measured, Erin’s Audio Corner) |
| Drivers | 1x 4” curvilinear-cone woofer (stock Pioneer), 1x Peerless BC25TG15 1” silk dome tweeter (replacement) | 5.25” (133mm) polycellulose woofer, 1” (25mm) aluminum dome tweeter |
| Weight | 9 lbs (4.1 kg) | 12 lbs (5.45 kg) each |
| Sensitivity | 83dB (2.83V/1m, measured by Audio Science Review) | 85.2dB (measured, Erin’s Audio Corner) |
| Impedance | 8 ohms nominal (approx. 5 ohms minimum, measured by Audio Science Review) | 6 ohms nominal, about 4.3 ohms minimum (measured, Erin’s Audio Corner) |
| Crossover Frequency | 3000Hz | 3.2kHz |
| Dimensions | 12.6”H x 7.1”W x 8.5”D (320.0 x 180.0 x 215.0 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 | 5.07 | 4.04 |
| Spinorama Preference Score with Perfect Sub | 7.82 | 6.51 |
| DIY Kit | Yes | No |
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The Two Speakers In Full
Pioneer SP-BS22-LR (Philharmonic AAM Mod): $168 per pair Discontinued eBay
Pros: This is Dennis Murphy’s “Affordable Accuracy Monitor” (AAM) mod of the discontinued, budget Pioneer SP-BS22-LR: the stock tweeter is swapped for a Peerless BC25TG15 dome and a redesigned 3rd-order crossover is built to match it to the stock 4” woofer. CEA2034 spinorama shows only small variations from a flat on-axis response with some directivity error near the crossover, a marked improvement over the unmodified Pioneer, which the reviewer notes shows much more variation from flat. Distortion at 86dB SPL/1m is reasonably controlled above 200Hz, and tweeter distortion barely rises even at 96dB SPL/1m. Measured bass extension of 78Hz (-3dB), with a measured sensitivity of 83dB.
Cons: Some directivity error appears near the crossover frequency. Distortion climbs in the woofer’s range (below 200Hz) at both 86dB and 96dB SPL/1m. Minimum impedance dips to about 5 ohms with a couple of resonance peaks. This is a DIY project, not a finished retail product: Murphy sold ~$168 pre-built pairs for a while but no longer does, so it now requires sourcing a used/discontinued Pioneer SP-BS22-LR pair plus building the crossover and swapping the tweeter yourself. The mod itself is public domain, but there is no current turnkey way to buy this speaker.
Full Pioneer SP-BS22-LR (Philharmonic AAM Mod) review and specifications →
| Bass Extension (-10dB) | 60Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 78Hz (measured, Audio Science Review) |
| Crossover Frequency | 3000Hz |
| DIY Kit | Yes |
| Dimensions | 12.6”H x 7.1”W x 8.5”D (320.0 x 180.0 x 215.0 mm) |
| Drivers | 1x 4” curvilinear-cone woofer (stock Pioneer), 1x Peerless BC25TG15 1” silk dome tweeter (replacement) |
| Impedance | 8 ohms nominal (approx. 5 ohms minimum, measured by Audio Science Review) |
| Sensitivity | 83dB (2.83V/1m, measured by Audio Science Review) |
| Spinorama Preference Score | 5.07 |
| Spinorama Preference Score with Perfect Sub | 7.82 |
| Weight | 9 lbs (4.1 kg) |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- Pioneer SP-BS22-LR (Philharmonic AAM Mod) vs JBL L52 Classic
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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
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- JBL Stage A130 vs Fluance Signature HFS
- JBL Stage A130 vs JBL Control 1 Pro
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