The JBL Project K2 S9900 ranks #113 out of 163 total Large Size Floorstanding Speakers for sound quality. See all Passive Home rankings for every top pick.
Brand: JBL
Prices on this page were last checked October 6, 2026 at 10:23 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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#113 JBL Project K2 S9900: $44,000 per pair Discontinued eBay
Pros: JBL’s former flagship: a three-way horn speaker with a 15” pulp cone woofer, a 4” magnesium compression driver on a Bi-Radial horn and a 1” beryllium ultra-high-frequency driver. Sensitivity is 93dB. Measurements show a preference score of 4.86 that reaches 6.82 with an ideal subwoofer, with 0.41 listening window deviation. Measured bass extension of 56.8Hz (-3dB).
Cons: It is very large and was sold through JBL Synthesis dealers. JBL no longer makes it. Bass reaches 56.8Hz (-3dB) and about 33Hz (-10dB). That data is low quality. Discontinued.
How it compares: Just above it: Klipsch Icon KF-26 - $21650 cheaper, 4Hz higher bass extension (-3dB). Just below it: CSS Criton 3TD-X DIY - 5.2Hz lower bass extension (-3dB).
| Bass Extension (-10dB) | about 32.7Hz (measured, third-party data via spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 56.8Hz (measured, third-party data via spinorama.org) |
| DIY Kit | No |
| Drivers | 15” pulp-cone woofer, 4” magnesium compression driver on Bi-Radial horn, 1” beryllium UHF driver |
| Frequency Response | 48Hz-50kHz -6dB (manufacturer specified) |
| Impedance | 8 ohms |
| Sensitivity | 93dB (2.83V/1m, manufacturer specified) |
| Spinorama Preference Score | 4.86 |
| Spinorama Preference Score with Perfect Sub | 6.82 |
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