Short answer: choose between the RCF ART 945-A and JBL PRX915 for the requirements of the venue and system, not from rank alone. In this size class, coverage, bass extension, output capability, DSP, cabinet construction, and service support often decide the better fit.
Why choose the RCF ART 945-A. This is the strongest-measuring 15-inch RCF here: medium-quality vendor data produces a 6.69 ideal-subwoofer preference score with roughly 50Hz extension. The top-tier compression driver and 41.4 lbs (18.8 kg) enclosure combine unusually high output with easy portability for a 15-inch box.
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. Pricing and wide retail distribution are not yet well established for this model, and the RCF ART9 range above the 912/932-A pair has a shorter market track record. Coverage and full connector details were not confirmed in local data. 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 ART 945-A when its stated coverage, output, processing, and deployment format best match the job.
Buy the JBL PRX915 when its stated strengths are the better match for the room and the rest of the PA.
Still deciding? The full PA & Live Sound rankings cover every ranked option.
A 15 inch PA speaker with very high output and good sound, and light for its size.
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 ART 945-A | JBL PRX915 | |
|---|---|---|
| Price | $2,099.00 | $999.00 |
| Ranked | #1 of 76 in 15-Inch PA Speakers | #15 of 76 in 15-Inch PA Speakers |
| Passive | No | No |
| Configuration | Active 2-way bass-reflex PA speaker | Active 2-way bass-reflex PA speaker |
| Drivers | 15” woofer, 1.4” exit/3” diaphragm compression driver | 15” woofer, 1.5” compression driver |
| Frequency Response | 45Hz - 20kHz (manufacturer specified) | 48Hz - 19kHz (-10dB, manufacturer specified) |
| Dimensions | 28.2”H x 16.3”W x 16.1”D (717 x 415 x 410 mm) | 28.2”H x 18.3”W x 15.1”D (717 x 465 x 383 mm) |
| Coverage | 100° x 60° | 90° x 50° |
| Maximum SPL | 135dB peak (manufacturer specified) | 133dB peak (manufacturer specified) |
| Inputs | XLR and 1/4-inch jack input; XLR output | 2 x XLR/TRS combo, 3.5mm aux; 2 x XLR thru and XLR mix outputs |
| Amplifier Power | 2100W peak (1400W LF + 700W HF) | 2000W peak / 1000W RMS |
| Crossover Frequency | 650Hz | 1920Hz |
| Cabinet Material | PP composite | Polypropylene/talc composite |
| Rigging | M10 inserts; 35mm pole mount | 6 x M10 suspension points; dual 36mm pole sockets |
| Bass Extension (-3dB) | 50.5Hz (measured, vendor Spinorama data) | 58Hz (measured, vendor Spinorama data) |
| DSP | Yes, FiRPHASE and Bass Motion Control | Yes, 12-band parametric EQ and dbx DriveRack |
| Bluetooth | No | Yes, control via JBL Pro Connect app |
| Weight | 49.4 lbs (22.4 kg) | 53.1 lbs (24.1 kg) |
| Spinorama Preference Score | 4.50 | 2.40 |
| Spinorama Preference Score with Perfect Sub | 6.69 | 4.77 |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | Yes | 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 |
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. The two were measured by different sources, so small differences, especially in the bass, can come from the measurement setup rather than the speakers.
Measurement data: RCF ART 945-A (measured by an independent reviewer) and JBL PRX915 (measured by the manufacturer), via spinorama.org.
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