Short answer: the L-Acoustics SYVA. It ranks #5 of 13 line array and installation pa speakers by sound quality (rated 4.0/5); the Alcons Audio QRP20 ranks #8 (rated 3.6/5).
The case for the L-Acoustics SYVA: Vendor Spinorama data gives preference scores of 4.01 standalone and 7.58 with an ideal subwoofer. The catch: On its own it reaches only about 106Hz (-3dB), so it cannot be used without a subwoofer.
Why pick the Alcons Audio QRP20: High-quality manufacturer measurements of the 90° version give preference scores of 3.38 standalone and 6.69 with an ideal subwoofer. The tradeoff: Bass reaches only 90Hz at -3dB and about 81Hz at -10dB, so it needs a subwoofer for music.
Buy the L-Acoustics SYVA. It is rated higher for sound quality than the Alcons Audio QRP20.
Still deciding? The full PA & Live Sound rankings cover every ranked option.
Specifications Side By Side
| L-Acoustics SYVA | Alcons Audio QRP20 | |
|---|---|---|
| Price | - | - |
| Ranked | #5 of 13 in Line Array and Installation PA Speakers | #8 of 13 in Line Array and Installation PA Speakers |
| Configuration | Passive 2-way line source | Passive 2-way point-source column (pro-ribbon) |
| Drivers | 6x 5” cone drivers, 3x 1.75” compression drivers | 1x 4” RBN401 pro-ribbon driver, 4x 5” woofers (sealed) |
| Frequency Response | 87Hz - 20kHz (manufacturer specified) | 72Hz - 20kHz (±3dB, manufacturer specified) |
| Dimensions | 51.2”H x 5.7”W x 8.2”D (1301 x 144 x 209 mm) | 29.2”H x 5.9”W x 5.9”D (742 x 150 x 150 mm) |
| Inputs | Speakon (via L-Acoustics amplified controller) | - |
| Amplifier Power | Passive speaker; requires an L-Acoustics amplified controller (LA4X, LA12X or LA7.16i) | Passive speaker; requires external amplification (Alcons Sentinel) |
| Cabinet Material | Baltic beech and birch plywood | - |
| Bass Extension (-3dB) | 106Hz (measured, vendor Spinorama data) | 90Hz (measured, vendor Spinorama data) |
| Coverage | 140° horizontal, +5°/-21° vertical | 90° x 15° (120° version available) |
| Maximum SPL | 137dB (manufacturer specified) | 128dB peak (manufacturer specified) |
| DSP | No (passive; processing and protection come from the amplified controller) | No (passive) |
| Weight | 46.3 lbs (21 kg) | 26.5 lbs (12 kg) |
| Spinorama Preference Score | 4.01 | 3.38 |
| Spinorama Preference Score with Perfect Sub | 7.58 | 6.69 |
| Bluetooth | No | No |
| XLR Input | No | No |
| 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 |
| Sensitivity | - | 99dB (200Hz - 10kHz) |
| Impedance | - | 4 ohms |
| Bass Extension (-10dB) | - | about 80.8Hz (measured, vendor Spinorama data) |
Related Speaker Comparisons
How L-Acoustics SYVA compares with other leading options:
- JBL CBT 1000 + CBT 1000E vs L-Acoustics SYVA
- JBL CBT 1000 vs L-Acoustics SYVA
- Kling Freitag PIA M vs L-Acoustics SYVA
- L-Acoustics SYVA vs Alcons Audio QR24
- L-Acoustics SYVA vs JBL COL600
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
L-Acoustics SYVA Passive eBay
Pros: Vendor Spinorama data gives preference scores of 4.01 standalone and 7.58 with an ideal subwoofer. Six 5-inch drivers and three compression drivers form a slim 21kg line source with 140° horizontal coverage and 137dB peak SPL. It is intended to be paired with SYVA Low or a subwoofer, which is where the system’s bass comes from. Measured bass extension of 106Hz (-3dB).
Cons: On its own it reaches only about 106Hz (-3dB), so it cannot be used without a subwoofer. It is a passive line source that needs L-Acoustics amplified controllers, and the narrow 25° vertical coverage limits placement flexibility. Listening-window narrow-band deviation is 0.319 and on-axis deviation is higher than the coaxial competition.
Full L-Acoustics SYVA review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | Passive speaker; requires an L-Acoustics amplified controller (LA4X, LA12X or LA7.16i) |
| Aux Input | No |
| Bass Extension (-3dB) | 106Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Baltic beech and birch plywood |
| Coaxial Input | No |
| Configuration | Passive 2-way line source |
| Coverage | 140° horizontal, +5°/-21° vertical |
| DSP | No (passive; processing and protection come from the amplified controller) |
| Dimensions | 51.2”H x 5.7”W x 8.2”D (1301 x 144 x 209 mm) |
| Drivers | 6x 5” cone drivers, 3x 1.75” compression drivers |
| Frequency Response | 87Hz - 20kHz (manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| Inputs | Speakon (via L-Acoustics amplified controller) |
| Maximum SPL | 137dB (manufacturer specified) |
| Microphone Input | No |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 4.01 |
| Spinorama Preference Score with Perfect Sub | 7.58 |
| TRS Input | No |
| USB Input | No |
| Weight | 46.3 lbs (21 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Alcons Audio QRP20 Passive eBay
Pros: High-quality manufacturer measurements of the 90° version give preference scores of 3.38 standalone and 6.69 with an ideal subwoofer. A 4-inch pro-ribbon driver on a Morpher lens above four sealed 5-inch woofers gives 99dB sensitivity and a 128dB peak from a slim 150mm-square, 12kg column, with 90° or 120° horizontal versions. Measured bass extension of 90Hz (-3dB).
Cons: Bass reaches only 90Hz at -3dB and about 81Hz at -10dB, so it needs a subwoofer for music. The 120° version measures slightly worse, at 3.00 standalone. It needs Alcons Sentinel amplification and is sold only through pro dealers with no published price.
Full Alcons Audio QRP20 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | Passive speaker; requires external amplification (Alcons Sentinel) |
| Aux Input | No |
| Bass Extension (-10dB) | about 80.8Hz (measured, vendor Spinorama data) |
| Bass Extension (-3dB) | 90Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Coaxial Input | No |
| Configuration | Passive 2-way point-source column (pro-ribbon) |
| Coverage | 90° x 15° (120° version available) |
| DSP | No (passive) |
| Dimensions | 29.2”H x 5.9”W x 5.9”D (742 x 150 x 150 mm) |
| Drivers | 1x 4” RBN401 pro-ribbon driver, 4x 5” woofers (sealed) |
| Frequency Response | 72Hz - 20kHz (±3dB, manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| Impedance | 4 ohms |
| Maximum SPL | 128dB peak (manufacturer specified) |
| Microphone Input | No |
| Optical Input | No |
| RCA Input | No |
| Sensitivity | 99dB (200Hz - 10kHz) |
| Spinorama Preference Score | 3.38 |
| Spinorama Preference Score with Perfect Sub | 6.69 |
| 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