Short answer: the KX 45-A if you want RCF’s flagship networked point source, the H-15 if you specifically want its narrower, feedback-resistant pattern. These rank #3 and #5 out of 76 15-inch powered PA speakers, priced at $6,500 and $4,618.50.
The H-15 uses a beryllium-diaphragm compression driver and a narrow horn. Low-quality vendor data still returns a strong 5.2 ideal-subwoofer preference score with roughly 70Hz extension, continuing the h-Class’s beryllium-diaphragm compression driver and narrow, feedback-resistant 60° x 40° pattern from the h-12. At 83.8 lbs (38 kg) and a $6,500 asking price this is among the heaviest and most expensive 15-inch boxes here, aimed at rental and touring use rather than casual portability, and the low-quality measurement source limits confidence in the exact result.
The KX 45-A has the highest claimed peak output in this entire ranking, plus RDNet control. 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 among the 15-inch boxes here. Rotatable 100° x 70° coverage suits both main and monitor use, but the local measurement is truncated and cannot produce a preference score, and at 62.6 lbs (28.4 kg) it’s one of the heaviest boxes here as well, with pricing and retail availability not yet well established.
What the H-15 adds:
- A beryllium-diaphragm compression driver, a premium material over the KX 45-A’s titanium dome.
- Ethernet/IP remote monitoring and control, an alternative networking approach to RCF’s RDNet.
What the KX 45-A adds:
- RDNet remote control integrated with RCF’s system ecosystem.
- A significantly higher claimed peak output, 137dB versus the H-15’s 136dB.
- A wider, rotatable 100° x 70° horn, versus the H-15’s fixed 60° x 40°.
- Roughly 22 lbs (10 kg) less weight at 62.6 lbs (28.4 kg) versus the H-15’s 83.8 lbs (38 kg).
Buy the KX 45-A for RCF’s networked ecosystem, the highest claimed output, and meaningfully less weight to carry.
Buy the H-15 if you specifically need its narrow, feedback-resistant pattern and beryllium driver for monitor or stage-fill work.
Still deciding? The full PA & Live Sound rankings cover every ranked option.
A premium powered 15 inch PA speaker with a beryllium compression driver, clear sound and a feedback resistant pattern for touring.
A flagship powered 15 inch PA speaker with huge amplifier power, very loud peaks, remote control and rotatable coverage.
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
| Vue Audiotechnik H-15 | RCF KX 45-A | |
|---|---|---|
| Price | $6,500 | $4,618.50 |
| Ranked | #3 of 76 in 15-Inch PA Speakers | #5 of 76 in 15-Inch PA Speakers |
| Passive | No | No |
| Configuration | Active 2-way bass-reflex PA speaker | Active 2-way bass-reflex point-source PA speaker |
| Drivers | 15” woofer, beryllium-diaphragm compression driver | 15” neodymium woofer, 1.4” exit/3” dome compression driver |
| Frequency Response | 42Hz - 21kHz (±1.5dB, manufacturer specified) | 50Hz - 20kHz (manufacturer specified) |
| Dimensions | 27.2”H x 17.2”W x 18”D (692 x 438 x 457 mm) | 27.8”H x 16.5”W x 16.9”D (705 x 419.6 x 430 mm) |
| Inputs | XLR analog/AES input with XLR loop output | XLR audio input/link and EtherCON RDNet |
| Amplifier Power | 1,105W long-term (830W LF + 275W HF); 2,400W burst (2,000W LF + 400W HF) | 3200W peak (2000W LF + 1200W HF) |
| Cabinet Material | Multi-ply birch hardwood | Baltic birch plywood |
| Network Control | Ethernet/IP remote monitoring and control | RDNet |
| Coverage | 60° x 40° | 100° x 70°, rotatable |
| Maximum SPL | 136dB peak (manufacturer specified) | 137dB peak (manufacturer specified) |
| Bass Extension (-3dB) | 90Hz (measured, vendor Spinorama data) | 54.5Hz (measured, manufacturer spinorama data) |
| DSP | Yes | Yes, FiRPHASE, Bass Motion Control, presets and RDNet |
| Bluetooth | No | No |
| Weight | 83.8 lbs (38 kg) | 62.6 lbs (28.4 kg) |
| Spinorama Preference Score | 3.10 | - |
| Spinorama Preference Score with Perfect Sub | 6.07 | - |
| XLR Input | Yes | Yes |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | No | No |
| Coaxial Input | No | No |
| USB Input | No | No |
| HDMI Input | No | No |
| AES Input | Yes | No |
| Aux Input | No | No |
| Microphone Input | No | No |
| Guitar Input | No | No |
| Rigging | Integrated M10 fly points plus built-in pole mount; optional flying hardware for array/support configurations | Quick-lock rigging; 6 x M10 inserts; 35mm pole mount |
| Crossover Frequency | - | 750Hz |
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: Vue Audiotechnik H-15 (measured by the manufacturer) and RCF KX 45-A (measured by the manufacturer), via spinorama.org.
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