Short answer: the Alcons Audio QRP40 if sound quality matters most, the Coda Audio CoRay4 if price matters most. The Alcons Audio QRP40 ranks #8 of 33 column and line array PA speakers, rated 3.7/5, at $7,500. The Coda Audio CoRay4 ranks #26, rated 3.0/5, at $2,380, $5,120 cheaper.
The Alcons Audio QRP40 is the more accurate, deeper-bass option. A shallow wall-mount ribbon column with high output and wide coverage that is easy to hide in a room. Its measured preference score, a predictor of how neutral it sounds, is 3.80 against 1.96 for the Coda Audio CoRay4. Its bass reaches about 73Hz before falling 3dB, against 82.5Hz for the Coda Audio CoRay4. Watch for: A 4.22 directivity-index deviation means off-axis tone varies more than its Alcons Audio QR24 sibling, and it needs a subwoofer below about 70Hz.
The case for the Coda Audio CoRay4: A touring and installation column with planar wave drivers and very high peak output, and columns link into longer arrays for big venues. The tradeoff: High-quality manufacturer measurements give a low 1.96 standalone preference score and 5.04 with an ideal subwoofer, with a 0.619 listening-window deviation, so tonal balance is uneven.
Buy the Alcons Audio QRP40 if sound quality is the priority over the price, or the Coda Audio CoRay4 if the price is the priority over sound quality.
Want more options? Browse the full PA & Live Sound rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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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Specifications Side By Side
| Alcons Audio QRP40 | Coda Audio CoRay4 | |
|---|---|---|
| Price | $7,500 Passive | $2,380 Passive |
| Ranked | #8 of 33 in Column and Line Array PA Speakers | #26 of 33 in Column and Line Array PA Speakers |
| Passive | Yes | Yes |
| Configuration | Passive 2-way point-source column (pro-ribbon) | Passive 2-way line source column (requires Coda controller) |
| Drivers | 1x 12” RBN1203 pro-ribbon driver, 8x 5” woofers (sealed) | 2x 4” neodymium planar wave drivers, 4x 5” woofers |
| Frequency Response | 71Hz - 20kHz (±3dB, manufacturer specified) | 80Hz - 20kHz (-6dB, manufacturer specified) |
| Dimensions | 44”H x 6.3”W x 9.3”D (1118 x 161 x 236 mm) | 29.8”H x 6”W x 8.4”D (758 x 152 x 214 mm) |
| Amplifier Power | Passive speaker; requires external amplification (Alcons Sentinel) | Passive speaker; requires a Coda Audio LINUS amplifier/controller |
| Maximum SPL | 131dB peak (manufacturer specified) | 144dB peak (manufacturer specified) |
| Coverage | 90° x 20° (120° version available) | 120°, 60° or 90° asymmetric horizontal x 12° vertical |
| Sensitivity | 103dB (200Hz - 10kHz) | 97dB |
| Impedance | 4 ohms | 4 ohms |
| DSP | No (passive) | No (passive) |
| Weight | 48.5 lbs (22 kg) | 34.6 lbs (15.7 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) | 73Hz (measured, vendor Spinorama data) | 82.5Hz (measured, vendor Spinorama data) |
| Bass Extension (-10dB) | about 63.8Hz (measured, vendor Spinorama data) | about 71.6Hz (measured, vendor Spinorama data) |
| Spinorama Preference Score | 3.80 | 1.96 |
| Spinorama Preference Score with Perfect Sub | 6.67 | 5.04 |
| Rigging | - | CODA mobile suspension and flange adapter; optional CF4 flying frame |
| Power Handling | - | 700W AES / 2,800W peak |
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