Short answer: the L-Acoustics X8. It ranks #6 of 22 8-inch pa speakers by sound quality (rated 4.0/5); the RCF KX 08-A ranks #7 (rated 3.9/5).
What the L-Acoustics X8 does well: Vendor Spinorama data gives preference scores of 4.29 standalone and 7.09 with an ideal subwoofer, the best standalone score in this ranking. Watch for: It is a passive cabinet that needs an L-Acoustics amplified controller.
The case for 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. The tradeoff: The local measurement is truncated and cannot produce a preference score, and pricing/retail availability are not yet well established for this model.
Buy the L-Acoustics X8. It is rated higher for sound quality than the RCF KX 08-A.
Want more options? Browse the full PA & Live Sound rankings.
Specifications Side By Side
| L-Acoustics X8 | RCF KX 08-A | |
|---|---|---|
| Price | - | $3,300.00 |
| Ranked | #6 of 22 in 8-Inch PA Speakers | #7 of 22 in 8-Inch PA Speakers |
| Configuration | Passive 2-way coaxial PA speaker | Active 2-way bass-reflex point-source PA speaker |
| Drivers | 8” low-frequency driver, 1.5” compression driver (coaxial) | 8” woofer, 1.75” voice-coil neodymium compression driver |
| Frequency Response | 60Hz - 20kHz (manufacturer specified) | 65Hz - 20kHz (manufacturer specified) |
| Amplifier Power | Passive speaker; requires external amplification (L-Acoustics amplified controller) | 2000W peak (1400W LF + 600W HF) |
| Maximum SPL | 129dB (manufacturer specified) | 128dB peak (manufacturer specified) |
| Coverage | 100° axisymmetric | 90° x 70°, rotatable |
| DSP | No (passive; processing comes from the amplified controller) | Yes, RDNet remote management |
| Rigging | 35° monitoring angle | M10 inserts; 35mm pole mount |
| Weight | 26.5 lbs (12 kg) | 24.3 lbs (11 kg) |
| Bass Extension (-3dB) | 71Hz (measured, vendor Spinorama data) | 82.5Hz (measured, vendor Spinorama data) |
| Bluetooth | No | No |
| Spinorama Preference Score | 4.29 | - |
| Spinorama Preference Score with Perfect Sub | 7.09 | - |
| XLR Input | No | 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 | No | No |
| Aux Input | No | No |
| Microphone Input | No | No |
| Guitar Input | No | No |
| Dimensions | - | 17.7”H x 10.2”W x 11.2”D (450 x 260 x 285.4 mm) |
| Inputs | - | XLR and EtherCON RDNet input/link |
| Crossover Frequency | - | 1400Hz |
| Cabinet Material | - | Baltic birch plywood |
| Network Control | - | RDNet |
Related Speaker Comparisons
How L-Acoustics X8 compares with other leading options:
- L-Acoustics X8 vs Yamaha DXR8mkII
- L-Acoustics X8 vs JBL PRX908
- L-Acoustics X8 vs EAW MKC80
- RCF KX 08-A vs DAS Audio ARTEC 508A
- RCF KX 08-A vs Yamaha DZR12
Prices on this page were last checked September 26, 2026 at 11:14 PM 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
L-Acoustics X8 Passive eBay
Pros: Vendor Spinorama data gives preference scores of 4.29 standalone and 7.09 with an ideal subwoofer, the best standalone score in this ranking. Bass reaches about 71Hz (-3dB) with a deviation of only 1.0dB across the reference band, and the 100° axisymmetric coaxial pattern stays even off axis. It reaches 129dB from a 12kg cabinet with a 35° monitor angle. Measured bass extension of 71Hz (-3dB).
Cons: It is a passive cabinet that needs an L-Acoustics amplified controller. Listening-window narrow-band deviation is 0.363 and predicted in-room smoothness is 0.615, a step behind the best-measuring boxes. Pricing is dealer quoted and high for an 8-inch box.
Full L-Acoustics X8 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | Passive speaker; requires external amplification (L-Acoustics amplified controller) |
| Aux Input | No |
| Bass Extension (-3dB) | 71Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Coaxial Input | No |
| Configuration | Passive 2-way coaxial PA speaker |
| Coverage | 100° axisymmetric |
| DSP | No (passive; processing comes from the amplified controller) |
| Drivers | 8” low-frequency driver, 1.5” compression driver (coaxial) |
| Frequency Response | 60Hz - 20kHz (manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| Maximum SPL | 129dB (manufacturer specified) |
| Microphone Input | No |
| Optical Input | No |
| RCA Input | No |
| Rigging | 35° monitoring angle |
| Spinorama Preference Score | 4.29 |
| Spinorama Preference Score with Perfect Sub | 7.09 |
| TRS Input | No |
| USB Input | No |
| Weight | 26.5 lbs (12 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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. Measured bass extension of 82.5Hz (-3dB).
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 →
| AES Input | No |
|---|---|
| Amplifier Power | 2000W peak (1400W LF + 600W HF) |
| Aux Input | No |
| Bass Extension (-3dB) | 82.5Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Baltic birch plywood |
| Coaxial Input | No |
| 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) |
| Guitar Input | No |
| HDMI Input | No |
| Inputs | XLR and EtherCON RDNet input/link |
| Maximum SPL | 128dB peak (manufacturer specified) |
| Microphone Input | No |
| Network Control | RDNet |
| Optical Input | No |
| RCA Input | No |
| Rigging | M10 inserts; 35mm pole mount |
| TRS Input | No |
| USB Input | No |
| Weight | 24.3 lbs (11 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons