KRS Active Column Array System – KRS-804E + KRS-15SW
Highlight Features
KRS Active Column Array System – KRS-804E + KRS-15SW
The KRS Active Column Array System is a coordinated sound reinforcement solution combining the KRS-804E column array loudspeaker with the KRS-15SW powered subwoofer. Each component is responsible for a specific frequency range: the column array delivers clear vocals, detailed high frequencies, and controlled sound projection, while the subwoofer provides the low-frequency depth and impact required for music and live performances. Together, they form a compact yet powerful system for stages, event venues, auditoriums, houses of worship, clubs, and permanent installations.
Product Description
- Complete two-component system: The package combines the KRS-804E column array loudspeaker and the KRS-15SW powered subwoofer to provide balanced full-range sound reproduction.
- Dedicated frequency operation: The KRS-804E covers the mid and high-frequency range from 70 Hz to 20 kHz, while the KRS-15SW extends system response down to 30 Hz for stronger and more defined bass.
- High-output sound reinforcement: Maximum peak SPL reaches 133 dB from the column array and 135 dB from the subwoofer, supporting demanding professional applications.
- Integrated Class D amplification: Both system components feature efficient Class D power amplifier technology for high output, reduced energy loss, and reliable long-term operation.
- Controlled audience coverage: The KRS-804E provides an 80° horizontal by 30° vertical coverage pattern, helping distribute sound evenly while limiting unnecessary dispersion.
- Clear and focused vocal reproduction: Eight 4-inch low-frequency drivers work together with a neodymium compression driver to improve projection, speech intelligibility, and tonal detail.
- Powerful low-frequency support: The KRS-15SW uses a 15-inch woofer with a 100 mm voice coil to reproduce deep bass with strong output and greater dynamic control.
- Installation-ready construction: Multiple M8 suspension points, NL4-compatible connectors, and durable CNC-machined plywood enclosures support both portable and fixed-installation configurations.
Product Specification
| Specification | KRS-804E Column Array | KRS-15SW Subwoofer |
|---|---|---|
| Integrated Power Amplifier | ||
| Stereo Output Power (8 Ω) | 800 W × 2 | 1500 W × 2 |
| Stereo Output Power (4 Ω) | 1200 W × 2 | 2200 W × 2 |
| Amplifier Topology | Class D | Class D |
| Power Amplifier Performance | ||
| Slew Rate | > 35 V/µs | > 35 V/µs |
| Damping Factor | > 300 | > 300 |
| Signal-to-Noise Ratio (S/N) | ≥ 97 dB | ≥ 97 dB |
| Channel Crosstalk | > 80 dB | > 80 dB |
| Loudspeaker Specifications | ||
| System Type | Column array loudspeaker | Powered subwoofer |
| LF Drivers | 8 × 4-inch woofers with 25 mm voice coils | 1 × 15-inch woofer with 100 mm voice coil |
| HF Driver | 1 × 1-inch neodymium compression driver with 25 mm voice coil | Not applicable |
| Power Handling | 600 W RMS / 1000 W Peak | 1100 W RMS / 1800 W Peak |
| Frequency Response | 70 Hz – 20 kHz (±3 dB) | 30 Hz – 300 Hz (±3 dB) |
| Sensitivity | 105 dB (1 W / 1 m) | 104 dB (1 W / 1 m) |
| Maximum SPL | 125 dB Continuous / 133 dB Peak | 126 dB Continuous / 135 dB Peak |
| Nominal Impedance | 4 Ω | 8 Ω |
| Coverage Angle (H × V) | 80° × 30° | Not applicable |
| Construction and Connectivity | ||
| Enclosure Material | CNC-machined high-density plywood | CNC-machined high-density birch plywood |
| Rigging Points | 14 × M8 threaded suspension points | 8 × M8 threaded suspension points |
| Input Connectors | 2 × NL4 Speakon®-compatible connectors (+1, -1) | 2 × NL4 Speakon®-compatible connectors (+1, -1) |
| Handles | — | 2 |
| Dimensions (W × D × H) | 130 × 145 × 1110 mm | 451 × 551 × 627 mm |
| Net Weight | 11.2 kg | 35 kg |
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