Short answer: choose between the RCF KX 45-A and KV2 Audio EX15 for the deployment, not from the automatic ranking alone. Their driver format, power requirements, coverage, bass reach, output capability, and control features determine which is the more practical PA for a particular room or system.
The case for the RCF KX 45-A. 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.
The case for the KV2 Audio EX15. Medium-quality vendor data gives it a 4.22 ideal-subwoofer preference score with 42Hz measured extension, the deepest bass reach of any 15-inch box in this ranking. Its 3-inch-diaphragm compression driver and integrated DSP target vocal clarity and controlled throw.
Important trade-offs. 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.
Buy the RCF KX 45-A when its stated format, coverage, and system features fit the job better.
Buy the KV2 Audio EX15 when its stated output, control, and deployment strengths better match the system.
Specifications Side By Side
| RCF KX 45-A | KV2 Audio EX15 | |
|---|---|---|
| Price | $4,620.00 | $6,000.00 |
| Ranked | #3 of 29 in 15-Inch Two-Way Powered PA Speakers | #6 of 29 in 15-Inch Two-Way Powered PA Speakers |
| Configuration | Active 2-way bass-reflex point-source PA speaker | Active 2-way bass-reflex PA speaker |
| Drivers | 15" neodymium woofer, 1.4" exit/3" dome compression driver | 15" neodymium woofer, 1.4" exit/3" diaphragm compression driver |
| Frequency Response | 50Hz - 20kHz (manufacturer specified) | 44Hz - 18kHz (-3dB, manufacturer specified) |
| Dimensions | 27.8"H x 16.5"W x 16.9"D (705 x 419.6 x 430 mm) | 27.6"H x 17.7"W x 17.7"D (700 x 450 x 450 mm) |
| Coverage | 100° x 70°, rotatable | - |
| Maximum SPL | 137dB peak (manufacturer specified) | - |
| Inputs | XLR audio input/link and EtherCON RDNet | Balanced female XLR input; male XLR through output |
| Amplifier Power | 3200W peak (2000W LF + 1200W HF) | 1,000W continuous (850W LF + 100W mid + 50W HF, manufacturer specified) |
| Crossover Frequency | 750Hz | 500Hz / 2.7kHz (manufacturer specified) |
| Cabinet Material | Baltic birch plywood | Baltic birch plywood |
| Rigging | Quick-lock rigging; 6 x M10 inserts; 35mm pole mount | - |
| Network Control | RDNet | - |
| DSP | Yes, FiRPHASE, Bass Motion Control, presets and RDNet | Integrated crossover, phase alignment, EQ and protection |
| Bluetooth | No | No |
| Weight | 62.6 lbs / 28.4 kg | - |
| Bass Extension (-3dB) | - | 50Hz (measured, vendor Spinorama data) |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Vue Audiotechnik H-15 vs RCF NX 945-A
- RCF ART 945-A vs Vue Audiotechnik H-15
- Vue Audiotechnik H-15 vs HK Audio LINEAR 7 115 FA
- Vue Audiotechnik H-15 vs RCF KX 45-A
- RCF NX 945-A vs KV2 Audio EX15
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
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
KV2 Audio EX15: $6,000.00 eBay
Pros: Medium-quality vendor data gives it a 4.22 ideal-subwoofer preference score with 42Hz measured extension, the deepest bass reach of any 15-inch box in this ranking. Its 3-inch-diaphragm compression driver and integrated DSP target vocal clarity and controlled throw.
Cons: At a roughly $6,000 asking price this specialist box is far less accessible than the mainstream leaders, and user controls are comparatively spare without an onboard mixer or app control.
Full KV2 Audio EX15 review and specifications →
| Amplifier Power | 1,000W continuous (850W LF + 100W mid + 50W HF, manufacturer specified) |
|---|---|
| Bass Extension (-3dB) | 50Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Baltic birch plywood |
| Configuration | Active 2-way bass-reflex PA speaker |
| Crossover Frequency | 500Hz / 2.7kHz (manufacturer specified) |
| DSP | Integrated crossover, phase alignment, EQ and protection |
| Dimensions | 27.6"H x 17.7"W x 17.7"D (700 x 450 x 450 mm) |
| Drivers | 15" neodymium woofer, 1.4" exit/3" diaphragm compression driver |
| Frequency Response | 44Hz - 18kHz (-3dB, manufacturer specified) |
| Inputs | Balanced female XLR input; male XLR through output |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons