Short answer: the Pioneer SP-BS22-LR (Philharmonic AAM Mod) is the value play, though neither ranks well in its class. This Dennis Murphy “Affordable Accuracy Monitor” mod costs $168 against the Dynaudio X14’s $1,500, a $1,332 gap, and its main flaw is some directivity error near the crossover. The X14 needs a waveguide it does not have, leaving an uneven on-axis response plus a port resonance that boosts the lower midrange. Both are rated below 3.0/5 among the 90 bookshelf speakers; for better sound, the Philharmonic Ceramic Mini ranks #2 at $900.
Buy the Dynaudio X14 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 Philharmonic Ceramic Mini instead.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| Dynaudio X14 | Pioneer SP-BS22-LR (Philharmonic AAM Mod) | |
|---|---|---|
| Price | $1,500 per pair Discontinued | $168 per pair Discontinued |
| Ranked | #62 of 90 in Medium Size Bookshelf Speakers | #63 of 90 in Medium Size Bookshelf Speakers |
| Bass Extension (-3dB) | 67.4Hz (measured, Audio Science Review) | 78Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 43.9Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) | 60Hz (measured, Audio Science Review) |
| Sensitivity | 82dB (2.83V/1m, measured, Audio Science Review) | 83dB (2.83V/1m, measured by Audio Science Review) |
| Impedance | 8 ohms nominal | 8 ohms nominal (approx. 5 ohms minimum, measured by Audio Science Review) |
| Frequency Response | 50Hz - 23kHz (+/-3dB) (Manufacturer specified) | - |
| Drivers | 1” silk dome tweeter, 5.7” magnesium-silicate-polymer woofer | 1x 4” curvilinear-cone woofer (stock Pioneer), 1x Peerless BC25TG15 1” silk dome tweeter (replacement) |
| Weight | 14.3 lbs (6.5 kg) each | 9 lbs (4.1 kg) |
| Dimensions | 11.2”H x 6.7”W x 10”D (285 x 170 x 255 mm) | 12.6”H x 7.1”W x 8.5”D (320.0 x 180.0 x 215.0 mm) |
| Woofer Cabinet | ported | ported, rear |
| Spinorama Preference Score | 4.57 (spinorama.org) | 5.07 |
| Spinorama Preference Score with Perfect Sub | 6.94 (spinorama.org) | 7.82 |
| DIY Kit | No | Yes |
| Crossover Frequency | - | 3000Hz |
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How Dynaudio X14 compares with other leading options:
- Dynaudio X14 vs Ascend Sierra 1 v2
- KEF LS50 Meta vs Dynaudio X14
- Dynaudio X14 vs Arendal 1961 Monitor
- Dynaudio X14 vs Revel M105
- Klipsch RP-500M II vs Dynaudio X14
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
Dynaudio X14: $1,500 per pair Discontinued eBay
Pros: 1” silk-dome tweeter and 5.7” magnesium-silicate-polymer woofer in a compact two-way stand-mount, rated at 85dB sensitivity. Measured bass extension of 67.4Hz (-3dB), with a measured sensitivity of 82dB.
Cons: CEA2034 spinorama shows an uneven on-axis response from the lack of a waveguide to control tweeter beam width, plus a port resonance that boosts the lower midrange and imperfect crossover matching between the drivers. Too much energy in the lower and upper treble reads as bright, and directivity narrows at higher frequencies rather than staying controlled. The reviewer’s verdict: out of the box, the objective performance isn’t that great, though EQ can make it a satisfying speaker. Discontinued.
Full Dynaudio X14 review and specifications →
| Bass Extension (-10dB) | 43.9Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
|---|---|
| Bass Extension (-3dB) | 67.4Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 11.2”H x 6.7”W x 10”D (285 x 170 x 255 mm) |
| Drivers | 1” silk dome tweeter, 5.7” magnesium-silicate-polymer woofer |
| Frequency Response | 50Hz - 23kHz (+/-3dB) (Manufacturer specified) |
| Impedance | 8 ohms nominal |
| Sensitivity | 82dB (2.83V/1m, measured, Audio Science Review) |
| Spinorama Preference Score | 4.57 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 6.94 (spinorama.org) |
| Weight | 14.3 lbs (6.5 kg) each |
| Woofer Cabinet | ported |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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
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