Short answer: choose between the RCF NX 945-A and Yamaha DXR15mkII 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. The Yamaha DXR15mkII is discontinued; its replacement is the Yamaha DXR15mkIII.
Why choose the RCF NX 945-A. The top NX-series 15-inch box pairs a plywood cabinet with a 135dB claimed peak, the highest in the NX range, and a wide 100° x 70° pattern. RCF’s FiRPHASE and Bass Motion Control processing carry over from the smaller NX models.
Why choose the Yamaha DXR15mkII. A proven, broadly distributed workhorse: medium-quality vendor data shows a 4.98 ideal-subwoofer preference score with 61Hz measured extension, and Yamaha’s FIR-X processing and D-CONTOUR presets simplify setup.
What to weigh before buying. The measurement is truncated and does not produce a preference score, so its tonal position relies on published engineering rather than a confirmed result. At 60.2 lbs (27.3 kg) it is heavier than the ART 945-A alternative. The preference score sits mid-pack for this ranking, and it lacks app control or Bluetooth audio found on some newer competitors.
Buy the RCF NX 945-A when its stated coverage, output, processing, and deployment format best match the job.
Buy the Yamaha DXR15mkII when its stated strengths are the better match for the room and the rest of the PA.
Looking for alternatives? See the complete PA & Live Sound rankings.
A loud powered 15 inch PA speaker in a plywood cabinet with wide coverage and onboard processing that keeps bass tidy.
A proven, widely available powered 15 inch PA speaker with presets that make setup simple.
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Specifications Side By Side
| RCF NX 945-A | Yamaha DXR15mkII | |
|---|---|---|
| Price | $2,299.00 | $798.00 Discontinued |
| Ranked | #8 of 76 in 15-Inch PA Speakers | #26 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, compression driver | 15” woofer, 1.75” compression driver |
| Frequency Response | 45Hz - 20kHz (manufacturer specified) | 49Hz - 20kHz (-10dB, manufacturer specified) |
| Dimensions | 27.8”H x 16.5”W x 17.8”D (705 x 420 x 451 mm) | 27.6”H x 17.5”W x 15”D (700 x 445 x 380 mm) |
| Coverage | 100° x 70° | 90° x 60° (constant directivity horn) |
| Maximum SPL | 135dB peak (manufacturer specified) | 134dB peak (manufacturer specified) |
| Inputs | XLR/TRS combo input and XLR output | XLR, dual 1/4-inch, stereo RCA; XLR thru and link outputs |
| Amplifier Power | 2100W peak (1400W LF + 700W HF) | 1100W dynamic / 700W continuous (950W LF + 150W HF dynamic) |
| Crossover Frequency | 650Hz | - |
| Cabinet Material | Plywood | Matte-finish ABS |
| Rigging | M10 and quick-lock rigging; 35mm pole mount | 3 x M10 points; 35mm dual-angle pole mount |
| Bass Extension (-3dB) | 65Hz (measured, vendor Spinorama data) | 67Hz (measured, vendor Spinorama data) |
| DSP | Yes, FiRPHASE and Bass Motion Control | Yes |
| Bluetooth | No | No |
| Weight | 60.2 lbs (27.3 kg) | 48.1 lbs (21.8 kg) |
| XLR Input | Yes | Yes |
| RCA Input | No | Yes |
| 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 |
| Spinorama Preference Score | - | 2.28 |
| Spinorama Preference Score with Perfect Sub | - | 4.98 |
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 NX 945-A (measured by the manufacturer) and Yamaha DXR15mkII (measured by the manufacturer), via spinorama.org.
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