The Alcons Audio SR9 ranks #10 out of 12 total Compact 5 to 6.5-Inch PA Speakers for sound quality. See all PA & Live Sound rankings for every top pick.
Brand: Alcons
Prices on this page were last checked September 23, 2026 at 11:24 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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#10 Alcons Audio SR9 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.
How it compares: Just above it: Fulcrum Acoustic RX699. Just below it: Turbosound NuQ62.
| 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 |
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