Short answer: choose between the RCF KX 45-A and Yamaha DXR15mkIII 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 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.
Why choose the Yamaha DXR15mkIII. The third-generation DXR15 raises claimed output to 134dB with 2000W amplification, app-based control and Yamaha’s newest onboard DSP, while its 90° x 60° pattern matches the well-regarded DXR12mkIII.
What to weigh before buying. The local measurement is truncated and cannot produce a preference score. At 62.6 lbs (28.4 kg) it is one of the heaviest boxes here, and pricing/retail availability are not yet established. The low-quality local data is truncated and cannot produce a preference score, so its tonal advantage over the proven DXR15mkII is unconfirmed. Wireless connectivity is for remote control, not audio streaming.
Buy the RCF KX 45-A when its stated coverage, output, processing, and deployment format best match the job.
Buy the Yamaha DXR15mkIII 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 flagship powered 15 inch PA speaker with huge amplifier power, very loud peaks, remote control and rotatable coverage.
A powered 15 inch PA speaker with loud output, app control and Yamaha’s latest onboard DSP.
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 45-A | Yamaha DXR15mkIII | |
|---|---|---|
| Price | $4,618.50 | $1,099.99 |
| Ranked | #5 of 76 in 15-Inch PA Speakers | #20 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 | 15” neodymium woofer, 1.4” exit/3” dome compression driver | 15” woofer, 1” throat/1.75” diaphragm compression driver |
| Frequency Response | 50Hz - 20kHz (manufacturer specified) | 46Hz - 20kHz (-10dB, manufacturer specified) |
| Dimensions | 27.8”H x 16.5”W x 16.9”D (705 x 419.6 x 430 mm) | 27.5”H x 17.6”W x 15”D (699 x 447 x 380 mm) |
| Coverage | 100° x 70°, rotatable | 90° x 60° |
| Maximum SPL | 137dB peak (manufacturer specified) | 134dB peak (manufacturer specified) |
| Inputs | XLR audio input/link and EtherCON RDNet | 2 x XLR/TRS combo; XLR thru and DSP outputs |
| Amplifier Power | 3200W peak (2000W LF + 1200W HF) | 2000W peak / 1000W RMS (1700W LF + 300W HF peak) |
| Crossover Frequency | 750Hz | 1800Hz (FIR-X) |
| Cabinet Material | Baltic birch plywood | PP plastic |
| Rigging | Quick-lock rigging; 6 x M10 inserts; 35mm pole mount | 3 x M10 points plus U-bracket points; 35mm dual-angle pole mount |
| Network Control | RDNet | - |
| DSP | Yes, FiRPHASE, Bass Motion Control, presets and RDNet | Yes, FIR-X tuning, Drive Motion Calibration and D-Remote |
| Bluetooth | No | Yes |
| Weight | 62.6 lbs (28.4 kg) | 46.3 lbs (21 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 | No |
| Microphone Input | No | No |
| Guitar Input | No | No |
| Bass Extension (-3dB) | 54.5Hz (measured, manufacturer spinorama data) | 54.5Hz (measured, vendor Spinorama data) |
| Bluetooth Version | - | 5.0 |
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 45-A (measured by the manufacturer) and Yamaha DXR15mkIII (measured by the manufacturer), via spinorama.org.
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