Short answer: these RCF KX 08-A and RCF ART 708-A MK4 alternatives share a brand and size class, but their coverage, driver architecture, cabinet format, processing, and output priorities can make them fit very different jobs.
Why choose the RCF KX 08-A. 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.
Why choose the RCF ART 708-A MK4. The 10.4kg cabinet combines 127dB claimed peak output, a broad horn and RCF’s FiRPHASE processing in a straightforward, affordable package for an 8-inch box.
What to weigh before buying. The local measurement is truncated and cannot produce a preference score, and pricing/retail availability are not yet well established for this model. The low-quality vendor measurement is truncated and cannot produce a reliable preference score.
Buy the RCF KX 08-A when its stated coverage, output, processing, and deployment format best match the job.
Buy the RCF ART 708-A MK4 when its stated strengths are the better match for the room and the rest of the PA.
If sound quality matters at all to you, skip the RCF ART 708-A MK4. It ranks near the bottom of the 15 8-inch two-way powered pa speakers, so look higher up the list instead.
Specifications Side By Side
| RCF KX 08-A | RCF ART 708-A MK4 | |
|---|---|---|
| Price | $3,300.00 | $525.00 |
| Ranked | #6 of 15 in 8-Inch Two-Way Powered PA Speakers | #14 of 15 in 8-Inch Two-Way Powered PA Speakers |
| Configuration | Active 2-way bass-reflex point-source PA speaker | Active 2-way bass-reflex PA speaker |
| Drivers | 8" woofer, 1.75" voice-coil neodymium compression driver | 8" woofer, 1" compression driver |
| Frequency Response | 65Hz - 20kHz (manufacturer specified) | 60Hz - 20kHz (manufacturer specified) |
| Dimensions | 17.7"H x 10.2"W x 11.2"D (450 x 260 x 285.4 mm) | 18.9"H x 11.5"W x 10.9"D (480 x 291 x 276 mm) |
| Coverage | 90° x 70°, rotatable | 100° x 70° |
| Maximum SPL | 128dB peak (manufacturer specified) | 127dB peak (manufacturer specified) |
| Inputs | XLR and EtherCON RDNet input/link | XLR/jack combo input; XLR output |
| Amplifier Power | 2000W peak (1400W LF + 600W HF) | 800W peak / 400W RMS (600W LF + 200W HF peak, manufacturer specified) |
| Crossover Frequency | 1400Hz | 1.6kHz (manufacturer specified) |
| Cabinet Material | Baltic birch plywood | Polypropylene composite |
| Rigging | M10 inserts; 35mm pole mount | Two M10 fly points; 35mm pole socket |
| Network Control | RDNet | - |
| Bass Extension (-3dB) | 82.5Hz (measured, vendor Spinorama data) | 75Hz (measured, vendor Spinorama data) |
| DSP | Yes, RDNet remote management | Yes, FiRPHASE, EQ, limiting and protection |
| Bluetooth | No | No |
| Weight | 24.3 lbs / 11 kg | 22.9 lbs / 10.4 kg |
Related Speaker Comparisons
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- Martin Audio CDD8 vs Audiofocus VENU 8a
- Audiofocus VENU 8a vs QSC K10.2
- JBL PRX908 vs RCF ART 945-A
- Turbosound NuQ82 vs RCF KX 08-A
- RCF KX 08-A vs RCF ART 708-A MK5
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
RCF ART 708-A MK4: $525.00 B&H Photo Video Guitar Center eBay
Pros: The 10.4kg cabinet combines 127dB claimed peak output, a broad horn and RCF’s FiRPHASE processing in a straightforward, affordable package for an 8-inch box.
Cons: The low-quality vendor measurement is truncated and cannot produce a reliable preference score. This discontinued MK4 offers little reason to choose it over the newer ART 708-A MK5 unless the used price is substantially lower.
Full RCF ART 708-A MK4 review and specifications →
| Amplifier Power | 800W peak / 400W RMS (600W LF + 200W HF peak, manufacturer specified) |
|---|---|
| Bass Extension (-3dB) | 75Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Polypropylene composite |
| Configuration | Active 2-way bass-reflex PA speaker |
| Coverage | 100° x 70° |
| Crossover Frequency | 1.6kHz (manufacturer specified) |
| DSP | Yes, FiRPHASE, EQ, limiting and protection |
| Dimensions | 18.9"H x 11.5"W x 10.9"D (480 x 291 x 276 mm) |
| Drivers | 8" woofer, 1" compression driver |
| Frequency Response | 60Hz - 20kHz (manufacturer specified) |
| Inputs | XLR/jack combo input; XLR output |
| Maximum SPL | 127dB peak (manufacturer specified) |
| Rigging | Two M10 fly points; 35mm pole socket |
| Weight | 22.9 lbs / 10.4 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- RCF ART 708-A MK4 vs Martin Audio CDD8
- RCF ART 708-A MK4 vs Audiofocus VENU 8a
- RCF ART 708-A MK4 vs RCF ART 708-A MK5
- RCF ART 708-A MK4 vs JBL PRX908
- RCF ART 708-A MK4 vs Yamaha DXR8mkII
- RCF ART 708-A MK4 vs QSC K8.2
- RCF ART 708-A MK4 vs QSC K10.2
- RCF ART 708-A MK4 vs Yamaha DZR15
- See all 10 comparisons