Monitor Audio Anthra W15 is a sealed 15-inch subwoofer built for systems that need substantial bass output with detailed control. Its Rigid Surface Technology II C-CAM driver uses a 50 mm peak-to-peak excursion and is backed by an amplifier capable of very high short-term power.
A rear colour display and rotary control cover the essential setup, while the MaestroUnite app opens the DSP, custom equalisation and multi-sub configuration. Balanced XLR and unbalanced RCA connections make the W15 suitable for both domestic receivers and more elaborate processor installations.
At 35.4 kg, the cabinet is not something to move casually after calibration. Plan the position and floor protection first, then use phase, low-pass and EQ tools to integrate it with the main speakers rather than simply chasing maximum output.
For official details on Monitor Audio Anthra W15, view the Monitor Audio Anthra W15 product page.
| ITEM | DESCRIPTION |
| Sealed fifteen-inch platform | The Anthra W15 combines deep extension with a controlled cabinet roll-off. |
| High-excursion RST II driver | A rigid patterned C-CAM cone handles large movement without excessive flex. |
| MaestroUnite configuration | The app manages DSP curves, custom filters and multi-sub setup. |
| Balanced and unbalanced audio | XLR and RCA paths support a wide range of processors and receivers. |
| Rear colour interface | The display and rotary control allow basic setup without a phone. |
| DETAIL | VALUE |
| System format | Active sealed subwoofer |
| Driver | 1 × 15 inch RST II C-CAM triple-suspension |
| Lower frequency limit | 16 Hz at -6 dB |
| Upper frequency limit | 400 Hz at -6 dB with low-pass filter off |
| Driver excursion | 50 mm peak to peak |
| Amplifier output | 2,500 W instantaneous and 1,400 W continuous short-term |
| Phase range | 0 to 360 degrees |
| Low-pass range | 20 to 200 Hz |
| Inputs | Stereo RCA and mono LFE balanced XLR |
| Dimensions without feet | 439 × 439 × 439 mm |
| Weight | 35.41 kg |
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