Short answer: these RCF ART 945-A and RCF NX 915-A alternatives share a brand and size class, but their coverage, driver architecture, cabinet format, processing, and output priorities can make them fit very different jobs.
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 RCF NX 915-A. The plywood enclosure, FiRPHASE/Bass Motion Control processing and flexible rigging make it a sturdier systems alternative to the ART 715-A MK5, with a wide 100° x 60° pattern and 131dB claimed peak.
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. The truncated vendor measurement does not yield a preference score, preventing a confident tonal comparison with the scored leaders. At 53.1 lbs (24.1 kg) it is notably heavier than the ART-series alternatives.
Buy the RCF ART 945-A when its stated coverage, output, processing, and deployment format best match the job.
Buy the RCF NX 915-A when its stated strengths are the better match for the room and the rest of the PA.
Want more options? Browse the full PA & Live Sound rankings.
A 15 inch PA speaker with very high output and good sound, and light for its size.
A sturdy powered 15 inch PA speaker in plywood with wide coverage, flexible rigging and onboard bass processing.
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 | RCF NX 915-A | |
|---|---|---|
| Price | $2,099.00 | $1,541.00 |
| Ranked | #1 of 76 in 15-Inch PA Speakers | #31 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, compression driver |
| Frequency Response | 45Hz - 20kHz (manufacturer specified) | 45Hz - 20kHz (manufacturer specified) |
| Dimensions | 28.2”H x 16.3”W x 16.1”D (717 x 415 x 410 mm) | 27.8”H x 16.5”W x 17.7”D (705 x 419.6 x 450.4 mm) |
| Coverage | 100° x 60° | 100° x 60° |
| Maximum SPL | 135dB peak (manufacturer specified) | 131dB peak (manufacturer specified) |
| Inputs | XLR and 1/4-inch jack input; XLR output | XLR/TRS combo input and XLR output |
| Amplifier Power | 2100W peak (1400W LF + 700W HF) | 2100W peak (1400W LF + 700W HF) |
| Crossover Frequency | 650Hz | 1600Hz |
| Cabinet Material | PP composite | Polyurea-coated plywood |
| Rigging | M10 inserts; 35mm pole mount | 6 x M10 inserts |
| Bass Extension (-3dB) | 50.5Hz (measured, vendor Spinorama data) | 53Hz (measured, vendor Spinorama data) |
| DSP | Yes, FiRPHASE and Bass Motion Control | Yes, FiRPHASE and Bass Motion Control |
| Bluetooth | No | No |
| Weight | 49.4 lbs (22.4 kg) | 53.1 lbs (24.1 kg) |
| Spinorama Preference Score | 4.50 | - |
| Spinorama Preference Score with Perfect Sub | 6.69 | - |
| 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 | No |
| 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 RCF NX 915-A (measured by the manufacturer), via spinorama.org.
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