Short answer: the L-Acoustics SYVA-low+top. It ranks #1 of 13 line array and installation pa speakers by sound quality (rated 4.4/5); the JBL CBT 1000 + CBT 1000E ranks #2 (rated 4.3/5).
What the L-Acoustics SYVA-low+top does well: Vendor Spinorama data gives preference scores of 6.05 standalone and 8.11 with an ideal subwoofer, the best in this ranking. The tradeoff: A passive system that needs L-Acoustics amplified controllers (LA4X, LA12X or LA8).
The case for the JBL CBT 1000 + CBT 1000E: Adding the CBT 1000E extension below the CBT 1000 gives a 5.70 standalone preference score, one of the highest of any PA speaker we list, and 7.96 with an ideal subwoofer. The tradeoff: The measurements are manufacturer supplied and spinorama rates their quality as low.
Buy the L-Acoustics SYVA-low+top. It is rated higher for sound quality than the JBL CBT 1000 + CBT 1000E.
Want more options? Browse the full PA & Live Sound rankings.
Specifications Side By Side
| L-Acoustics SYVA-low+top | JBL CBT 1000 + CBT 1000E | |
|---|---|---|
| Price | - | $4,945.00 |
| Ranked | #1 of 13 in Line Array and Installation PA Speakers | #2 of 13 in Line Array and Installation PA Speakers |
| Configuration | Passive 2-way line source with dual 12” low extension (SYVA plus SYVA Low) | Passive 2-way Constant Beamwidth Technology column with matching extension |
| Drivers | 6x 5” cone drivers and 3x 1.75” compression drivers (SYVA), dual 12” cone drivers (SYVA Low) | CBT 1000: 6x 6.5” woofers, 24x 1” tweeters; CBT 1000E adds a matching extension array |
| Frequency Response | 40Hz - 20kHz (manufacturer specified) | 45Hz - 20kHz (-10dB, CBT 1000 alone, manufacturer specified) |
| Dimensions | 84.6”H x 13.1”W x 13.8”D (2150 x 334 x 350 mm) (measured stack) | - |
| Inputs | Speakon (via L-Acoustics amplified controller) | - |
| Amplifier Power | Passive speaker; requires an L-Acoustics amplified controller (LA4X, LA12X or LA8) | Passive speaker; requires external amplification |
| Cabinet Material | Baltic beech and birch plywood | - |
| Bass Extension (-3dB) | 50Hz (measured, vendor Spinorama data) | 51.5Hz (measured, vendor Spinorama data) |
| Coverage | 140° horizontal, about 25° vertical | Switchable vertical patterns, wide horizontal |
| Maximum SPL | 137dB (manufacturer specified) | - |
| DSP | No (passive; processing and protection come from the amplified controller) | No (passive) |
| Weight | 110.2 lbs (50 kg) | - |
| Spinorama Preference Score | 6.05 | 5.70 |
| Spinorama Preference Score with Perfect Sub | 8.11 | 7.96 |
| 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 |
| Power Handling | - | 1,500W (6,000W peak), CBT 1000 |
| Sensitivity | - | 102dB (highest setting, CBT 1000) |
| Impedance | - | 4 ohms (CBT 1000) |
| Bass Extension (-10dB) | - | about 39.6Hz (measured, vendor Spinorama data) |
Related Speaker Comparisons
More top alternatives to L-Acoustics SYVA-low+top:
- L-Acoustics SYVA-low+top vs JBL CBT 1000
- L-Acoustics SYVA-low+top vs Kling Freitag PIA M
- L-Acoustics SYVA-low+top vs Alcons Audio QR24
- JBL CBT 1000 + CBT 1000E vs Kling Freitag PIA M
- JBL CBT 1000 + CBT 1000E vs L-Acoustics SYVA
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 SYVA-low+top Passive eBay
Pros: Vendor Spinorama data gives preference scores of 6.05 standalone and 8.11 with an ideal subwoofer, the best in this ranking. Pairing the SYVA line source with SYVA Low adds two 12-inch drivers, extending bass to about 50Hz (-3dB) and 137dB peak SPL. Listening-window narrow-band deviation is 0.188, and the 140° horizontal pattern covers wide rooms from one slim column. Measured bass extension of 50Hz (-3dB).
Cons: A passive system that needs L-Acoustics amplified controllers (LA4X, LA12X or LA8). The two-element stack is 2.15m tall and about 50kg, so it is an installed or touring system rather than a grab-and-go box. Vertical coverage is only about 25°, which suits seated audiences but limits use on steep or multi-tier rooms.
Full L-Acoustics SYVA-low+top review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | Passive speaker; requires an L-Acoustics amplified controller (LA4X, LA12X or LA8) |
| Aux Input | No |
| Bass Extension (-3dB) | 50Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Baltic beech and birch plywood |
| Coaxial Input | No |
| Configuration | Passive 2-way line source with dual 12” low extension (SYVA plus SYVA Low) |
| Coverage | 140° horizontal, about 25° vertical |
| DSP | No (passive; processing and protection come from the amplified controller) |
| Dimensions | 84.6”H x 13.1”W x 13.8”D (2150 x 334 x 350 mm) (measured stack) |
| Drivers | 6x 5” cone drivers and 3x 1.75” compression drivers (SYVA), dual 12” cone drivers (SYVA Low) |
| Frequency Response | 40Hz - 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 | 6.05 |
| Spinorama Preference Score with Perfect Sub | 8.11 |
| TRS Input | No |
| USB Input | No |
| Weight | 110.2 lbs (50 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
JBL CBT 1000 + CBT 1000E: $4,945.00 Passive B&H Photo Video eBay
Pros: Adding the CBT 1000E extension below the CBT 1000 gives a 5.70 standalone preference score, one of the highest of any PA speaker we list, and 7.96 with an ideal subwoofer. Bass reaches 51.5Hz at -3dB and about 40Hz at -10dB, so the pair can run full range without a subwoofer, and a 1.4dB reference band keeps the tonal balance very even. JBL’s Constant Beamwidth Technology gives switchable vertical coverage for long rooms. Measured bass extension of 51.5Hz (-3dB).
Cons: The measurements are manufacturer supplied and spinorama rates their quality as low. At $4945 the combination is expensive, stands about 2m tall and weighs around 50kg, and it needs an external amplifier.
Full JBL CBT 1000 + CBT 1000E review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | Passive speaker; requires external amplification |
| Aux Input | No |
| Bass Extension (-10dB) | about 39.6Hz (measured, vendor Spinorama data) |
| Bass Extension (-3dB) | 51.5Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Coaxial Input | No |
| Configuration | Passive 2-way Constant Beamwidth Technology column with matching extension |
| Coverage | Switchable vertical patterns, wide horizontal |
| DSP | No (passive) |
| Drivers | CBT 1000: 6x 6.5” woofers, 24x 1” tweeters; CBT 1000E adds a matching extension array |
| Frequency Response | 45Hz - 20kHz (-10dB, CBT 1000 alone, manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| Impedance | 4 ohms (CBT 1000) |
| Microphone Input | No |
| Optical Input | No |
| Power Handling | 1,500W (6,000W peak), CBT 1000 |
| RCA Input | No |
| Sensitivity | 102dB (highest setting, CBT 1000) |
| Spinorama Preference Score | 5.70 |
| Spinorama Preference Score with Perfect Sub | 7.96 |
| TRS Input | No |
| USB Input | No |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons