Short answer: the JBL CBT 1000. It ranks #3 of 13 line array and installation pa speakers by sound quality, rated 4.1/5, at $3,075. The JBL CBT 70J-1 ranks #10, rated 3.4/5, at $1,480, $1,595 cheaper, not enough of a saving to outweigh the sound-quality gap.
What the JBL CBT 1000 does well: Its 8.13 preference score with an ideal subwoofer is one of the highest of any PA speaker we list, and a 0.168 listening-window deviation shows a very even tonal balance for listeners across the coverage area. The tradeoff: The measurements are manufacturer supplied and spinorama rates their quality as low.
What the JBL CBT 70J-1 does well: Independently measured by Audio Science Review, with a 5.87 preference score with an ideal subwoofer and a 3.20 directivity-index deviation. Watch for: Bass measures 120Hz at -3dB and about 62Hz at -10dB, and the standalone score is only 2.95, so it needs a subwoofer for music.
Buy the JBL CBT 1000. It is rated higher for sound quality, and the $1,595 saving on the JBL CBT 70J-1 is not enough to make up the difference.
Still deciding? The full PA & Live Sound rankings cover every ranked option.
Specifications Side By Side
| JBL CBT 1000 | JBL CBT 70J-1 | |
|---|---|---|
| Price | $3,075.00 | $1,480.00 |
| Ranked | #3 of 13 in Line Array and Installation PA Speakers | #10 of 13 in Line Array and Installation PA Speakers |
| Configuration | Passive 2-way Constant Beamwidth Technology column | Passive 2-way Constant Beamwidth Technology column |
| Drivers | 6x 6.5” neodymium woofers, 24x 1” neodymium tweeters | 4x 5” neodymium woofers, 16x 1” neodymium tweeters |
| Frequency Response | 45Hz - 20kHz (-10dB, manufacturer specified) | 60Hz - 20kHz (-10dB, manufacturer specified) |
| Dimensions | 40.2”H x 9.8”W x 13.6”D (1020 x 250 x 345 mm) | 27.3”H x 6.7”W x 9.3”D (694 x 170 x 237 mm) |
| Amplifier Power | Passive speaker; requires external amplification | Passive speaker; requires external amplification |
| Power Handling | 1,500W (6,000W peak) | 500W (2,000W peak) |
| Coverage | Switchable vertical patterns, wide horizontal | Switchable 25° or 45° vertical |
| Sensitivity | 102dB (highest setting) | - |
| Impedance | 4 ohms | 8 ohms |
| DSP | No (passive) | No (passive) |
| Weight | 54 lbs (24.5 kg) | 20.9 lbs (9.5 kg) |
| 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 |
| Bass Extension (-3dB) | 115Hz (measured, vendor Spinorama data) | 120.1Hz (measured, Audio Science Review data on spinorama.org) |
| Bass Extension (-10dB) | about 48.3Hz (measured, vendor Spinorama data) | about 61.5Hz (measured, Audio Science Review data on spinorama.org) |
| Spinorama Preference Score | 4.67 | 2.95 |
| Spinorama Preference Score with Perfect Sub | 8.13 | 5.87 |
| Maximum SPL | - | 131dB peak (narrow, speech mode, manufacturer specified) |
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- JBL CBT 1000 vs L-Acoustics SYVA
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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
JBL CBT 1000: $3,075.00 Passive B&H Photo Video eBay
Pros: Its 8.13 preference score with an ideal subwoofer is one of the highest of any PA speaker we list, and a 0.168 listening-window deviation shows a very even tonal balance for listeners across the coverage area. Six 6.5-inch woofers and 24 one-inch tweeters in JBL’s Constant Beamwidth design give switchable vertical coverage, 102dB sensitivity and a 1,500W rating. The optional CBT 1000E extension adds bass and throw. Measured bass extension of 115Hz (-3dB).
Cons: The measurements are manufacturer supplied and spinorama rates their quality as low. On its own the standalone score is 4.67, and the measured bass response is uneven, reaching 115Hz at -3dB but about 48Hz at -10dB, so a subwoofer or the CBT 1000E helps. It is passive, weighs 24.5kg and needs an external amplifier.
Full JBL CBT 1000 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | Passive speaker; requires external amplification |
| Aux Input | No |
| Bass Extension (-10dB) | about 48.3Hz (measured, vendor Spinorama data) |
| Bass Extension (-3dB) | 115Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Coaxial Input | No |
| Configuration | Passive 2-way Constant Beamwidth Technology column |
| Coverage | Switchable vertical patterns, wide horizontal |
| DSP | No (passive) |
| Dimensions | 40.2”H x 9.8”W x 13.6”D (1020 x 250 x 345 mm) |
| Drivers | 6x 6.5” neodymium woofers, 24x 1” neodymium tweeters |
| Frequency Response | 45Hz - 20kHz (-10dB, manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| Impedance | 4 ohms |
| Microphone Input | No |
| Optical Input | No |
| Power Handling | 1,500W (6,000W peak) |
| RCA Input | No |
| Sensitivity | 102dB (highest setting) |
| Spinorama Preference Score | 4.67 |
| Spinorama Preference Score with Perfect Sub | 8.13 |
| TRS Input | No |
| USB Input | No |
| Weight | 54 lbs (24.5 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
JBL CBT 70J-1: $1,480.00 Passive B&H Photo Video eBay
Pros: Independently measured by Audio Science Review, with a 5.87 preference score with an ideal subwoofer and a 3.20 directivity-index deviation. Sixteen 1-inch tweeters and four 5-inch woofers give switchable 25° or 45° vertical coverage for long-throw or medium rooms, with a 131dB peak and a speech or music voicing switch. A pan and tilt wall bracket is included. Measured bass extension of 120.1Hz (-3dB).
Cons: Bass measures 120Hz at -3dB and about 62Hz at -10dB, and the standalone score is only 2.95, so it needs a subwoofer for music. A 4.0dB reference band and 0.573 listening-window deviation mean tonal balance is uneven. It is passive and needs an external amplifier.
Full JBL CBT 70J-1 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | Passive speaker; requires external amplification |
| Aux Input | No |
| Bass Extension (-10dB) | about 61.5Hz (measured, Audio Science Review data on spinorama.org) |
| Bass Extension (-3dB) | 120.1Hz (measured, Audio Science Review data on spinorama.org) |
| Bluetooth | No |
| Coaxial Input | No |
| Configuration | Passive 2-way Constant Beamwidth Technology column |
| Coverage | Switchable 25° or 45° vertical |
| DSP | No (passive) |
| Dimensions | 27.3”H x 6.7”W x 9.3”D (694 x 170 x 237 mm) |
| Drivers | 4x 5” neodymium woofers, 16x 1” neodymium tweeters |
| Frequency Response | 60Hz - 20kHz (-10dB, manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| Impedance | 8 ohms |
| Maximum SPL | 131dB peak (narrow, speech mode, manufacturer specified) |
| Microphone Input | No |
| Optical Input | No |
| Power Handling | 500W (2,000W peak) |
| RCA Input | No |
| Spinorama Preference Score | 2.95 |
| Spinorama Preference Score with Perfect Sub | 5.87 |
| TRS Input | No |
| USB Input | No |
| Weight | 20.9 lbs (9.5 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons