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The IMPACT-X18B is a passive bass-reflex subwoofer with one 18" driver and a 2.5" voice coil, rated at 500 W continuous and 2000 W peak into 4 Ω. It reaches 133 dB maximum SPL at 1 m in half space, with a response of 45 Hz to 220 Hz (+/-3 dB). The MDF cabinet has two handles and a 35 mm pole mount.
| Active or Passive | Passive |
|---|---|
| System Type | Subwoofer |
| Configuration | Bass-reflex |
| System Continuous Power | 500 W |
| System Programme Power | 1000 W |
| System Peak Power | 2000 W |
| Max SPL @ 1m | 133 dB (Half Space) |
| Freq Response (+/-3 dB) | 45 Hz - 220 Hz |
| Freq Range (-10 dB) | 30 Hz - 250 Hz |
| Bluetooth | No |
| IP Certification | None |
| Driver Brand | Wharfedale Pro |
| LF Driver Size | 18" |
| LF Voice Coil Size | 2.5” |
| LF Rated Impedance | 4 Ω |
| LF Power (RE:AES2-2012) | 500 W |
| Preset Library | No |
| Input Connector | 2 x 2 Pole Speaker Connector + 1/4″ Jack Combo |
| Enclosure Material | MDF |
| Grille Material and Finish | Steel Black |
| Finish | Black Tough-Tone |
| Handles | 2 |
| Deployment | Ground |
| Pole Mount | 35 mm |
| Brackets Included | No |
| Rigging | No |
| Sensitivity 2.83 V / 1 m | 100 dB |
| System Rated Impedance | 4 Ω |
| Crossover Frequency | 250 Hz |
| Recommended HPF = BW 18 dB/OCT. | 30 Hz |
| Transformer (T) | No |
| Unpacked - Height (mm) | 526 |
|---|---|
| Unpacked - Width Front (mm) | 611 |
| Unpacked - Width Rear (mm) | 611 |
| Unpacked - Depth (mm) | 607 |
| Packed - Height (mm) | 660 |
| Packed - Width Front (mm) | 710 |
| Packed - Width Rear (mm) | 710 |
| Packed - Depth (mm) | 635 |
| Weight - Nett (kg) | 34.52 |
| Weight - Gross (kg) | 41.2 |
Deployment is listed as ground, and a 35 mm pole mount is listed. Rigging is listed as No.
2 x 2 Pole Speaker Connector + 1/4" Jack Combo.
No. Preset Library is listed as No.
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