Short answer: the L-Acoustics X6i. It ranks #4 of 16 compact 5 to 6.5-inch pa speakers by sound quality (rated 3.9/5); the Alcons Audio SR9 ranks #16 (rated 3.2/5).
The case for the L-Acoustics X6i: Vendor Spinorama data gives preference scores of 4.20 standalone and 7.34 with an ideal subwoofer. The tradeoff: A passive cabinet that needs an L-Acoustics amplified controller such as the LA2Xi, LA4X or LA7.16i.
Why pick the Alcons Audio SR9: High-quality vendor Spinorama data gives preference scores of 2.46 standalone and 6.18 with an ideal subwoofer. Watch for: Bass reaches only about 150Hz (-3dB), the shallowest of the group, so it is a fill and speech box that depends on a subwoofer.
Buy the L-Acoustics X6i. It is rated higher for sound quality than the Alcons Audio SR9.
Looking for alternatives? See the complete PA & Live Sound rankings.
Specifications Side By Side
| L-Acoustics X6i | Alcons Audio SR9 | |
|---|---|---|
| Price | - | - |
| Ranked | #4 of 16 in Compact 5 to 6.5-Inch PA Speakers | #16 of 16 in Compact 5 to 6.5-Inch PA Speakers |
| Configuration | Passive 2-way coaxial PA speaker | Passive 2-way ribbon-fill PA speaker |
| Drivers | 6.5” low-frequency driver, 1.5” compression driver (coaxial) | Dual 5” sealed woofers, RBN401 pro-ribbon |
| Frequency Response | 69Hz - 20kHz (manufacturer specified) | - |
| Dimensions | 14.3”H x 7.4”W x 6.7”D (362 x 187 x 170 mm) | - |
| Inputs | 2-point terminal block input and link | - |
| Amplifier Power | Passive speaker; requires an L-Acoustics amplified controller (LA2Xi, LA4X or LA7.16i) | Passive speaker; requires external amplification within the 800W peak handling rating |
| Cabinet Material | Baltic beech and birch plywood | - |
| Bass Extension (-3dB) | 90Hz (measured, vendor Spinorama data) | 150Hz (measured, vendor Spinorama data) |
| Coverage | 90° axisymmetric | 120° horizontal x 15° vertical |
| Maximum SPL | 123dB (manufacturer specified) | - |
| DSP | No (passive; processing and protection come from the amplified controller) | No (passive) |
| IP Rating | IP55 | - |
| Weight | 13.9 lbs (6.3 kg) | - |
| Spinorama Preference Score | 4.20 | 2.46 |
| Spinorama Preference Score with Perfect Sub | 7.34 | 6.18 |
| 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 | - | 800W peak (manufacturer specified) |
Related Speaker Comparisons
More top alternatives to L-Acoustics X6i:
- DAS Audio ARTEC 526A vs L-Acoustics X6i
- DAS Audio ARTEC 506A vs L-Acoustics X6i
- Alcons Audio VR5 V1 vs L-Acoustics X6i
- L-Acoustics X6i vs EAW MKC60
- L-Acoustics X6i vs Coda Audio HOPS5
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 X6i Passive eBay
Pros: Vendor Spinorama data gives preference scores of 4.20 standalone and 7.34 with an ideal subwoofer. The 90° axisymmetric coaxial pattern is even, with listening-window narrow-band deviation of 0.23 and predicted in-room smoothness of 0.572. It is an IP55 rated 6.3kg cabinet that reaches 123dB, which suits weather-exposed installs and near-field monitoring. Measured bass extension of 90Hz (-3dB).
Cons: A passive cabinet that needs an L-Acoustics amplified controller such as the LA2Xi, LA4X or LA7.16i. Bass reaches only about 90Hz (-3dB), so a subwoofer is required for anything beyond speech and light music. Pricing is dealer quoted and high for a 6.5-inch box.
Full L-Acoustics X6i review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | Passive speaker; requires an L-Acoustics amplified controller (LA2Xi, LA4X or LA7.16i) |
| Aux Input | No |
| Bass Extension (-3dB) | 90Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Cabinet Material | Baltic beech and birch plywood |
| Coaxial Input | No |
| Configuration | Passive 2-way coaxial PA speaker |
| Coverage | 90° axisymmetric |
| DSP | No (passive; processing and protection come from the amplified controller) |
| Dimensions | 14.3”H x 7.4”W x 6.7”D (362 x 187 x 170 mm) |
| Drivers | 6.5” low-frequency driver, 1.5” compression driver (coaxial) |
| Frequency Response | 69Hz - 20kHz (manufacturer specified) |
| Guitar Input | No |
| HDMI Input | No |
| IP Rating | IP55 |
| Inputs | 2-point terminal block input and link |
| Maximum SPL | 123dB (manufacturer specified) |
| Microphone Input | No |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 4.20 |
| Spinorama Preference Score with Perfect Sub | 7.34 |
| TRS Input | No |
| USB Input | No |
| Weight | 13.9 lbs (6.3 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Alcons Audio SR9 Passive eBay
Pros: High-quality vendor Spinorama data gives preference scores of 2.46 standalone and 6.18 with an ideal subwoofer. The RBN401 pro-ribbon and 120° horizontal pattern make it a discreet ribbon-fill and front-fill box, and the sealed woofers give a smooth roll-off. Measured bass extension of 150Hz (-3dB).
Cons: Bass reaches only about 150Hz (-3dB), the shallowest of the group, so it is a fill and speech box that depends on a subwoofer. It is passive, listening-window narrow-band deviation is 0.463, and the very narrow 15° vertical pattern limits placement.
Full Alcons Audio SR9 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | Passive speaker; requires external amplification within the 800W peak handling rating |
| Aux Input | No |
| Bass Extension (-3dB) | 150Hz (measured, vendor Spinorama data) |
| Bluetooth | No |
| Coaxial Input | No |
| Configuration | Passive 2-way ribbon-fill PA speaker |
| Coverage | 120° horizontal x 15° vertical |
| DSP | No (passive) |
| Drivers | Dual 5” sealed woofers, RBN401 pro-ribbon |
| Guitar Input | No |
| HDMI Input | No |
| Microphone Input | No |
| Optical Input | No |
| Power Handling | 800W peak (manufacturer specified) |
| RCA Input | No |
| Spinorama Preference Score | 2.46 |
| Spinorama Preference Score with Perfect Sub | 6.18 |
| TRS Input | No |
| USB Input | No |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons