Short answer: the ART 945-A, on measured performance and portability. These rank #1 and #3 out of 29 15-inch powered PA speakers, priced at $1999 and $4620, a $2621 difference.
The ART 945-A is the strongest-measuring 15-inch RCF in this ranking. Medium-quality vendor data produces a 5.91 ideal-subwoofer preference score with roughly 50Hz extension. The top-tier compression driver and 18.8kg enclosure combine unusually high output with easy portability for a 15-inch box. Pricing and wide retail distribution aren’t yet well established for this model, and the RCF ART9 range above the 912/932-A pair has a shorter market track record, but the measured result is the standout here.
The KX 45-A is RCF’s flagship point source with RDNet, but its measurement is unconfirmed. It pairs a 3200W amplifier with a 3-inch titanium-dome compression driver, RDNet remote control and a 137dB claimed peak, the highest maximum-output claim in this ranking. Rotatable 100° x 70° coverage suits both main and monitor use, but the local measurement is truncated and cannot produce a preference score. At 28.4kg it’s also nearly 10kg heavier than the ART 945-A.
What the KX 45-A adds:
- RDNet remote monitoring and control, unavailable on the ART 945-A.
- A higher claimed peak output, 137dB versus the ART 945-A’s 135dB.
- A wider, rotatable 100° x 70° horn, versus the ART’s fixed 100° x 60°.
- A 3200W amplifier, nearly 50% more than the ART 945-A’s 2100W.
Buy the ART 945-A for the strongest confirmed measured result in RCF’s 15-inch line, plus meaningfully lighter weight.
Buy the KX 45-A if RDNet networked control and the highest available claimed output matter more than a confirmed measurement.
Specifications Side By Side
| RCF ART 945-A | RCF KX 45-A | |
|---|---|---|
| Price | $1,999.00 | $4,620.00 |
| Ranked | #1 of 29 in 15-Inch Two-Way Powered PA Speakers | #3 of 29 in 15-Inch Two-Way Powered PA Speakers |
| Configuration | Active 2-way bass-reflex PA speaker | Active 2-way bass-reflex point-source PA speaker |
| Drivers | 15" woofer, 1.4" exit/3" diaphragm compression driver | 15" neodymium woofer, 1.4" exit/3" dome compression driver |
| Frequency Response | 45Hz - 20kHz (manufacturer specified) | 50Hz - 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 16.9"D (705 x 419.6 x 430 mm) |
| Coverage | 100° x 60° | 100° x 70°, rotatable |
| Maximum SPL | 135dB peak (manufacturer specified) | 137dB peak (manufacturer specified) |
| Inputs | XLR and 1/4-inch jack input; XLR output | XLR audio input/link and EtherCON RDNet |
| Amplifier Power | 2100W peak (1400W LF + 700W HF) | 3200W peak (2000W LF + 1200W HF) |
| Crossover Frequency | 650Hz | 750Hz |
| Cabinet Material | PP composite | Baltic birch plywood |
| Rigging | M10 inserts; 35mm pole mount | Quick-lock rigging; 6 x M10 inserts; 35mm pole mount |
| Bass Extension (-3dB) | 50.5Hz (measured, vendor Spinorama data) | - |
| DSP | Yes, FiRPHASE and Bass Motion Control | Yes, FiRPHASE, Bass Motion Control, presets and RDNet |
| Bluetooth | No | No |
| Weight | 49.4 lbs / 22.4 kg | 62.6 lbs / 28.4 kg |
| Network Control | - | RDNet |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Vue Audiotechnik H-15 vs HK Audio LINEAR 7 115 FA
- Vue Audiotechnik H-15 vs RCF NX 945-A
- HK Audio LINEAR 7 115 FA vs RCF NX 945-A
- RCF KX 45-A vs HK Audio LINEAR 7 115 FA
- RCF KX 45-A vs RCF NX 945-A
Prices on this page were last checked September 7, 2026 at 7:47 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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The Two Speakers In Full
RCF ART 945-A: $1,999.00 B&H Photo Video Guitar Center eBay
Pros: This is the strongest-measuring 15-inch RCF here: medium-quality vendor data produces a 5.91 ideal-subwoofer preference score with roughly 50Hz extension. The top-tier compression driver and 18.8kg enclosure combine unusually high output with easy portability for a 15-inch box.
Cons: 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.
Full RCF ART 945-A review and specifications →
| Amplifier Power | 2100W peak (1400W LF + 700W HF) |
|---|---|
| Bass Extension (-3dB) | 50.5Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | PP composite |
| Configuration | Active 2-way bass-reflex PA speaker |
| Coverage | 100° x 60° |
| Crossover Frequency | 650Hz |
| DSP | Yes, FiRPHASE and Bass Motion Control |
| Dimensions | 28.2"H x 16.3"W x 16.1"D (717 x 415 x 410 mm) |
| Drivers | 15" woofer, 1.4" exit/3" diaphragm compression driver |
| Frequency Response | 45Hz - 20kHz (manufacturer specified) |
| Inputs | XLR and 1/4-inch jack input; XLR output |
| Maximum SPL | 135dB peak (manufacturer specified) |
| Rigging | M10 inserts; 35mm pole mount |
| Weight | 49.4 lbs / 22.4 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
RCF KX 45-A: $4,620.00 B&H Photo Video Guitar Center eBay
Pros: RCF’s flagship 15-inch point source pairs a 3200W amplifier with a 3-inch titanium-dome compression driver, RDNet remote control and a 137dB claimed peak, the highest maximum-output claim in this ranking. Rotatable 100° x 70° coverage suits both main and monitor use.
Cons: The local measurement is truncated and cannot produce a preference score. At 28.4kg it is one of the heaviest boxes here, and pricing/retail availability are not yet established.
Full RCF KX 45-A review and specifications →
| Amplifier Power | 3200W peak (2000W LF + 1200W HF) |
|---|---|
| Bluetooth | No |
| Cabinet Material | Baltic birch plywood |
| Configuration | Active 2-way bass-reflex point-source PA speaker |
| Coverage | 100° x 70°, rotatable |
| Crossover Frequency | 750Hz |
| DSP | Yes, FiRPHASE, Bass Motion Control, presets and RDNet |
| Dimensions | 27.8"H x 16.5"W x 16.9"D (705 x 419.6 x 430 mm) |
| Drivers | 15" neodymium woofer, 1.4" exit/3" dome compression driver |
| Frequency Response | 50Hz - 20kHz (manufacturer specified) |
| Inputs | XLR audio input/link and EtherCON RDNet |
| Maximum SPL | 137dB peak (manufacturer specified) |
| Network Control | RDNet |
| Rigging | Quick-lock rigging; 6 x M10 inserts; 35mm pole mount |
| Weight | 62.6 lbs / 28.4 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons