Short answer: choose between the Yamaha DZR15 and RCF NX 915-A 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 Yamaha DZR15. Medium-quality vendor data returns a 5.25 ideal-subwoofer preference score with 39Hz measured extension, deeper than the DZR12. The bi-amped 2-inch compression driver and sophisticated onboard DSP target serious main-speaker duty.
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. The bass-extension figure comes from truncated manufacturer data and should be read cautiously. 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 Yamaha DZR15 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.
Still deciding? The full PA & Live Sound rankings cover every ranked option.
A powered 15 inch PA speaker with good sound, very deep bass and advanced onboard DSP for main speaker duty.
A sturdy powered 15 inch PA speaker in plywood with wide coverage, flexible rigging and onboard bass processing.
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Specifications Side By Side
| Yamaha DZR15 | RCF NX 915-A | |
|---|---|---|
| Price | $1,519.99 | $1,541.00 |
| Ranked | #12 of 76 in 15-Inch PA Speakers | #31 of 76 in 15-Inch PA Speakers |
| Passive | No | No |
| Configuration | Active 2-way bi-amped bass-reflex PA speaker | Active 2-way bass-reflex PA speaker |
| Drivers | 15” woofer, 2” compression driver | 15” woofer, compression driver |
| Frequency Response | 34Hz - 20kHz (-10dB, manufacturer specified) | 45Hz - 20kHz (manufacturer specified) |
| Dimensions | 30”H x 17.7”W x 18.1”D (761 x 450 x 460 mm) | 27.8”H x 16.5”W x 17.7”D (705 x 419.6 x 450.4 mm) |
| Coverage | 90° x 50°, rotatable | 100° x 60° |
| Maximum SPL | 139dB peak (manufacturer specified) | 131dB peak (manufacturer specified) |
| Inputs | 2 x XLR/TRS combo; 2 x XLR output | XLR/TRS combo input and XLR output |
| Amplifier Power | 2000W dynamic / 1100W burst / 950W continuous | 2100W peak (1400W LF + 700W HF) |
| Crossover Frequency | 1700Hz (FIR-X) | 1600Hz |
| Cabinet Material | Plywood with polyurea coating | Polyurea-coated plywood |
| Rigging | 12 x M10 points; dual 35mm pole mounts | 6 x M10 inserts |
| Bass Extension (-3dB) | 46.2Hz (measured, vendor Spinorama data) | 53Hz (measured, vendor Spinorama data) |
| DSP | Yes, FIR-X tuning and Drive Motion Calibration | Yes, FiRPHASE and Bass Motion Control |
| Bluetooth | No | No |
| Weight | 55.6 lbs (25.2 kg) | 53.1 lbs (24.1 kg) |
| Spinorama Preference Score | 3.35 | - |
| Spinorama Preference Score with Perfect Sub | 5.25 | - |
| 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.
Measurement data: Yamaha DZR15 (measured by the manufacturer) and RCF NX 915-A (measured by the manufacturer), via spinorama.org.
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