Short answer: it depends on whether you want self-powered convenience or the better-measuring cabinet. These rank #6 and #7 out of 15 8-inch powered PA speakers, and the two take very different approaches to the same size class.
The KX 08-A is RCF’s flagship 8-inch point source, but it hasn’t produced a confirmed measurement result. It packs a 2000W amplifier, a PKX-dome neodymium compression driver and a rotatable 90° x 70° horn with RDNet remote control into a manageable 12.5kg cabinet, at $3300. Its local Spinorama measurement is truncated, though, so there’s no computed preference score to confirm its tonal performance.
The A-8 is passive, but its measured result is the strongest of the two. Low-quality vendor data still shows a 4.79 ideal-subwoofer preference score, the best documented result between these two, from a neodymium woofer and aluminum-dome compression driver on a rotatable 70° x 55° horn. Being passive, it needs external amplification and processing to run, adding setup cost and complexity the self-powered KX 08-A avoids, and its measured bass extension is shallow at roughly 90Hz.
What the KX 08-A adds:
- Built-in 2000W amplification, so there’s no external amp to buy or configure.
- RDNet remote control, letting you monitor and adjust the speaker from a networked system.
- A wider, rotatable 90° x 70° horn versus the A-8’s 70° x 55°.
Buy the KX 08-A if you want a self-powered, network-controllable point source and don’t need a confirmed measurement to trust RCF’s flagship engineering.
Buy the A-8 if you already have amplification in place and want the better-documented measured result, and don’t mind the shallower bass extension.
Specifications Side By Side
| RCF KX 08-A | Vue Audiotechnik A-8 | |
|---|---|---|
| Price | $3,300.00 | $999.00 |
| Ranked | #6 of 15 in 8-Inch Two-Way Powered PA Speakers | #7 of 15 in 8-Inch Two-Way Powered PA Speakers |
| Configuration | Active 2-way bass-reflex point-source PA speaker | Passive 2-way bass-reflex PA speaker |
| Drivers | 8" woofer, 1.75" voice-coil neodymium compression driver | 8" neodymium woofer, aluminum-dome compression driver |
| Frequency Response | 65Hz - 20kHz (manufacturer specified) | 75Hz - 20kHz (manufacturer specified) |
| Dimensions | 17.7"H x 10.2"W x 11.2"D (450 x 260 x 285.4 mm) | Not published by VUE in the current product page |
| Coverage | 90° x 70°, rotatable | 70° x 55°, rotatable |
| Maximum SPL | 128dB peak (manufacturer specified) | 124dB peak (manufacturer specified) |
| Inputs | XLR and EtherCON RDNet input/link | Passive input connections: not published by VUE in the current product page |
| Amplifier Power | 2000W peak (1400W LF + 600W HF) | Passive speaker; external amplifier required (manufacturer output rating not published in the current product page) |
| Crossover Frequency | 1400Hz | - |
| Cabinet Material | Baltic birch plywood | Multi-ply cross-grain laminated birch plywood |
| Rigging | M10 inserts; 35mm pole mount | Integrated fly points and pole-mount system |
| Network Control | RDNet | - |
| Bass Extension (-3dB) | 82.5Hz (measured, vendor Spinorama data) | 90Hz (measured, vendor Spinorama data) |
| DSP | Yes, RDNet remote management | - |
| Bluetooth | No | No |
| Weight | 24.3 lbs / 11 kg | 28.9 lbs / 13.1 kg |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- LD Systems Stinger 8-A-G3 vs Vue Audiotechnik H-8
- L-Acoustics 108P vs JBL PRX908
- QSC K8.2 vs JBL PRX908
- JBL PRX908 vs RCF KX 08-A
- RCF KX 08-A vs LD Systems Stinger 8-A-G3
Prices on this page were last checked September 7, 2026 at 7:47 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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The Two Speakers In Full
RCF KX 08-A: $3,300.00 B&H Photo Video Guitar Center eBay
Pros: The entry point into RCF’s flagship KX point-source range, with a 2000W amplifier, a PKX-dome neodymium compression driver, RDNet remote control and a rotatable 90° x 70° horn in a manageable 12.5kg cabinet.
Cons: The local measurement is truncated and cannot produce a preference score, and pricing/retail availability are not yet well established for this model.
Full RCF KX 08-A review and specifications →
| Amplifier Power | 2000W peak (1400W LF + 600W HF) |
|---|---|
| Bass Extension (-3dB) | 82.5Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Baltic birch plywood |
| Configuration | Active 2-way bass-reflex point-source PA speaker |
| Coverage | 90° x 70°, rotatable |
| Crossover Frequency | 1400Hz |
| DSP | Yes, RDNet remote management |
| Dimensions | 17.7"H x 10.2"W x 11.2"D (450 x 260 x 285.4 mm) |
| Drivers | 8" woofer, 1.75" voice-coil neodymium compression driver |
| Frequency Response | 65Hz - 20kHz (manufacturer specified) |
| Inputs | XLR and EtherCON RDNet input/link |
| Maximum SPL | 128dB peak (manufacturer specified) |
| Network Control | RDNet |
| Rigging | M10 inserts; 35mm pole mount |
| Weight | 24.3 lbs / 11 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Vue Audiotechnik A-8: $999.00 eBay
Pros: Low-quality vendor data shows a 4.79 ideal-subwoofer preference score, the strongest measured result among the passive entries in this ranking. A neodymium woofer and aluminum-dome compression driver on a rotatable 70° x 55° horn keep amplification and DSP choices flexible for installers.
Cons: Being passive, it needs an external amplifier and processing to perform correctly, adding cost and complexity that self-powered rivals avoid. Measured bass extension is shallow at roughly 90Hz.
Full Vue Audiotechnik A-8 review and specifications →
| Amplifier Power | Passive speaker; external amplifier required (manufacturer output rating not published in the current product page) |
|---|---|
| Bass Extension (-3dB) | 90Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Multi-ply cross-grain laminated birch plywood |
| Configuration | Passive 2-way bass-reflex PA speaker |
| Coverage | 70° x 55°, rotatable |
| Dimensions | Not published by VUE in the current product page |
| Drivers | 8" neodymium woofer, aluminum-dome compression driver |
| Frequency Response | 75Hz - 20kHz (manufacturer specified) |
| Inputs | Passive input connections: not published by VUE in the current product page |
| Maximum SPL | 124dB peak (manufacturer specified) |
| Rigging | Integrated fly points and pole-mount system |
| Weight | 28.9 lbs / 13.1 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons