Short answer: choose between the JBL PRX912 and RCF NX 912-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 JBL PRX912. High-quality manufacturer Spinorama data, 132dB claimed peak output, app control and unusually deep onboard processing make this one of the most versatile choices. The measured 54Hz bass extension is useful for speech and lighter music without a subwoofer.
Why choose the RCF NX 912-A. The plywood enclosure, 2100W amplification, FiRPHASE/Bass Motion Control and flexible rigging make it a sturdier systems alternative to the ART 912-A. Medium-quality data indicates extension to roughly 58Hz with broad 100° x 60° coverage.
What to weigh before buying. Its 6.05 ideal-subwoofer preference score trails the QSC and FBT ProMaxX, with less even sound-power behavior in the supplied data. At 43 lbs (19.5 kg) it is not especially light, and Bluetooth is for control rather than audio streaming. The truncated vendor measurement does not yield a preference score, preventing a confident tonal comparison with the scored leaders. Its 130dB peak claim matches the cheaper ART 912-A rather than exceeding it.
Buy the JBL PRX912 when its stated coverage, output, processing, and deployment format best match the job.
Buy the RCF NX 912-A 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 versatile, loud 12 inch powered PA speaker with app control, deep onboard processing and enough bass for speech and lighter music.
A sturdy plywood 12 inch powered PA speaker with strong amplification, wide coverage and flexible rigging for professional systems.
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Specifications Side By Side
| JBL PRX912 | RCF NX 912-A | |
|---|---|---|
| Price | $899.00 | $1,449.00 |
| Ranked | #6 of 83 in 12-Inch PA Speakers | #20 of 83 in 12-Inch PA Speakers |
| Passive | No | No |
| Configuration | Active 2-way bass-reflex PA speaker | Active 2-way bass-reflex PA speaker |
| Drivers | 12” woofer, 1.5” compression driver | 12” woofer, 1.75” compression driver |
| Frequency Response | 50Hz - 20kHz (-10dB, manufacturer specified) | 50Hz - 20kHz (manufacturer specified) |
| Bass Extension (-3dB) | 54Hz (measured, vendor Spinorama data) | 58Hz (measured, vendor Spinorama data) |
| Coverage | 90° x 50° | 100° x 60° |
| Maximum SPL | 132dB peak (manufacturer specified) | 130dB peak (manufacturer specified) |
| Inputs | 2 x XLR/TRS combo, 3.5mm aux | XLR/TRS combo input and XLR output |
| App | Yes (JBL Pro Connect) | - |
| DSP | Yes | Yes, FiRPHASE and Bass Motion Control |
| Bluetooth | Control only; no Bluetooth audio | No |
| Weight | 43 lbs (19.5 kg) | 45.9 lbs (20.8 kg) |
| Dimensions | 25”H x 15.5”W x 13.1”D (636 x 394 x 332 mm) | 24.4”H x 14.2”W x 15.9”D (620 x 361.4 x 404.5 mm) |
| Amplifier Power | 2000W peak / 1000W RMS | 2100W peak (1400W LF + 700W HF) |
| Crossover Frequency | 1920Hz | 1600Hz |
| Cabinet Material | Polypropylene/talc composite | Polyurea-coated plywood |
| Rigging | 6 x M10 suspension points; dual 36mm pole sockets | 6 x M10 inserts |
| Spinorama Preference Score | 3.57 | - |
| Spinorama Preference Score with Perfect Sub | 6.05 | - |
| 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 | Yes | 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: JBL PRX912 (measured by the manufacturer) and RCF NX 912-A (measured by the manufacturer), via spinorama.org.
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