JBL SRX818SP, 18-inch Powered Subwoofer
The JBL SRX818SP is a self‑powered (active) 18″ subwoofer in JBL’s SRX800 series.
Because it is self‑powered, it includes its own built‑in amplifier and DSP (digital signal processing), so you don’t need a separate amplifier to drive it.
It is intended for professional live sound, tour, DJ, rental, and installation applications — essentially wherever strong, deep low-frequency reinforcement is needed in a flexible and robust format.
Product Specifications
| System Type | Self powered 18”, subwoofer system |
| Maximum SPL (1m) | 135 dB |
| Frequency Range (-10dB) | 29 Hz - 150 Hz |
| Frequency Response (-3 dB) | 35 Hz - 120 Hz |
| Amplifier Design | Class D |
| Power Rating | 1000 W Peak |
| Dimensions (H x W x D) | 683mm x 684mm x 575mm (26.89in x 26.92in x 22.62in) |
| Net Weight (each) | 39.5 kg (87 lb) |
| EQ | 20 parametric EQ's, speaker delay, and 50 available slots for presets |
| Inputs | Neutrik ¼ - XLR input; Neutrik XLR Output |
| Outputs | 2 x XLR |
| Enclosure | 18 mm Duraflex coated plywood |
| LF Driver | 1 x 18 in Differential Drive® |
| System Processing | DSP based, resident in Input Module |
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
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We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.