Short answer: choose between the Yamaha DZR12 and RCF NX 945-A by matching the speaker to the deployment rather than treating their ranking positions as a universal verdict. Coverage, cabinet format, bass extension, output capability, DSP, and service support all matter in a PA system.
Why choose the Yamaha DZR12. Premium cabinet construction, 139dB claimed output and deep onboard 96kHz DSP suit demanding live work. The local vendor data shows useful 48Hz measured extension, the deepest result among the scored Yamaha models here.
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.
What to weigh before buying. It is heavy at roughly 46.3 lbs (21 kg) and has no Bluetooth audio. 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.
Buy the Yamaha DZR12 when its stated coverage, output, processing, and installation format fit the job better.
Buy the RCF NX 945-A when its stated strengths better suit the venue and the rest of the system.
Looking for alternatives? See the complete PA & Live Sound rankings.
A very loud 12 inch powered PA speaker with premium build, advanced onboard DSP and deep bass for demanding live work.
A loud powered 15 inch PA speaker in a plywood cabinet with wide coverage and onboard processing that keeps bass tidy.
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
| Yamaha DZR12 | RCF NX 945-A | |
|---|---|---|
| Price | $1,198.49 | $2,299.00 |
| Ranked | #22 of 83 in 12-Inch PA Speakers | #8 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 | 12” woofer, 2” compression driver | 15” woofer, compression driver |
| Frequency Response | 39Hz - 20kHz (manufacturer specified) | 45Hz - 20kHz (manufacturer specified) |
| Dimensions | 25.4”H x 16.1”W x 15.5”D (646 x 410 x 394 mm) | 27.8”H x 16.5”W x 17.8”D (705 x 420 x 451 mm) |
| Bass Extension (-3dB) | 48Hz (measured, vendor Spinorama data) | 65Hz (measured, vendor Spinorama data) |
| Coverage | 90° x 60° | 100° x 70° |
| Maximum SPL | 139dB peak (manufacturer specified) | 135dB peak (manufacturer specified) |
| Inputs | 2 x XLR/TRS combo | XLR/TRS combo input and XLR output |
| Amplifier Power | 2000W dynamic / 1100W burst / 950W continuous | 2100W peak (1400W LF + 700W HF) |
| Crossover Frequency | 1800Hz (FIR-X) | 650Hz |
| Cabinet Material | Plywood with polyurea coating | Plywood |
| Rigging | M10 points; dual 35mm pole mounts | M10 and quick-lock rigging; 35mm pole mount |
| DSP | Yes | Yes, FiRPHASE and Bass Motion Control |
| Bluetooth | No | No |
| Weight | 47.2 lbs (21.4 kg) | 60.2 lbs (27.3 kg) |
| Spinorama Preference Score | 2.64 | - |
| Spinorama Preference Score with Perfect Sub | 4.91 | - |
| 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 DZR12 (measured by the manufacturer) and RCF NX 945-A (measured by the manufacturer), via spinorama.org.
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