Short answer: choose between the RCF KX 10-A and JBL PRX915 by matching the speaker to the deployment rather than treating their ranking positions as a universal verdict. Coverage, cabinet format, bass extension, output capability, DSP, and service support all matter in a PA system.
Why choose the RCF KX 10-A. The entry point into RCF’s flagship KX point-source range, with a 130dB claimed peak, a neodymium woofer and wide 100° x 50° coverage in a manageable 34.2 lbs (15.5 kg) cabinet.
Why choose the JBL PRX915. High-quality vendor data shows a 4.77 ideal-subwoofer preference score with 51Hz measured extension, backed by JBL’s extensive service network and 12-band parametric EQ with dbx DriveRack feedback suppression carried over from the PRX912.
What to weigh before buying. The local measurement is truncated and cannot produce a preference score, and pricing/retail availability are not yet well established for this model. Its measured preference trails the 12-inch PRX912, and at 53.1 lbs (24.1 kg) it is meaningfully heavier to carry to a gig than the smaller model.
Buy the RCF KX 10-A when its stated coverage, output, processing, and installation format fit the job better.
Buy the JBL PRX915 when its stated strengths better suit the venue and the rest of the system.
Want more options? Browse the full PA & Live Sound rankings.
A loud, wide covering 10 inch powered PA speaker from a flagship pro range, in a manageable cabinet for installs and events.
A powered 15 inch PA speaker with good sound, fairly deep bass, app control and built in EQ and feedback suppression.
Prices on this page were last checked October 23, 2026 at 8:27 AM 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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Specifications Side By Side
| RCF KX 10-A | JBL PRX915 | |
|---|---|---|
| Price | $2,798.50 | $999.00 |
| Ranked | #8 of 42 in 10-Inch PA Speakers | #15 of 76 in 15-Inch PA Speakers |
| Passive | No | No |
| Configuration | Active 2-way bass-reflex point-source PA speaker | Active 2-way bass-reflex PA speaker |
| Drivers | 10” neodymium woofer, compression driver | 15” woofer, 1.5” compression driver |
| Frequency Response | 60Hz - 20kHz (manufacturer specified) | 48Hz - 19kHz (-10dB, manufacturer specified) |
| Dimensions | 20.1”H x 11.8”W x 17.5”D (510 x 300 x 445 mm) | 28.2”H x 18.3”W x 15.1”D (717 x 465 x 383 mm) |
| Coverage | 100° x 50° | 90° x 50° |
| Maximum SPL | 130dB peak (manufacturer specified) | 133dB peak (manufacturer specified) |
| Inputs | XLR and EtherCON RDNet input/link | 2 x XLR/TRS combo, 3.5mm aux; 2 x XLR thru and XLR mix outputs |
| Amplifier Power | 2000W peak (1400W LF + 600W HF) | 2000W peak / 1000W RMS |
| Crossover Frequency | 1600Hz | 1920Hz |
| Cabinet Material | Baltic birch plywood | Polypropylene/talc composite |
| Rigging | M10 inserts; 35mm pole mount | 6 x M10 suspension points; dual 36mm pole sockets |
| Network Control | RDNet | - |
| Bass Extension (-3dB) | 73Hz (measured, vendor Spinorama data) | 58Hz (measured, vendor Spinorama data) |
| DSP | Yes, FiRPHASE, Bass Motion Control and presets | Yes, 12-band parametric EQ and dbx DriveRack |
| Bluetooth | No | Yes, control via JBL Pro Connect app |
| Weight | 34.2 lbs (15.5 kg) | 53.1 lbs (24.1 kg) |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | No | Yes |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | No | No |
| Aux Input | No | Yes |
| Microphone Input | No | No |
| Guitar Input | No | No |
| Spinorama Preference Score | - | 2.40 |
| Spinorama Preference Score with Perfect Sub | - | 4.77 |
Frequency Response Compared
Both speakers’ spinorama measurements, overlaid. A flatter line is more neutral: peaks sound forward or harsh, dips sound recessed. Each curve is shifted so its average from 300 Hz to 3 kHz sits at 0 dB, so loudness differences between the two are removed and only the shape is compared.
Measurement data: RCF KX 10-A (measured by the manufacturer) and JBL PRX915 (measured by the manufacturer), via spinorama.org.
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