JBL SRX718S 18-inch Passive Subwoofer

Deep 18-inch bass to sit under your PA

The JBL SRX718S is a single 18-inch passive subwoofer that adds deep, controlled low-end beneath your main PA tops at events, DJ nights and live shows. It runs from an external power amp over Speakon.

This is a JBL SRX718S professional subwoofer, a single 18-inch cabinet built around one JBL 2268H Differential Drive woofer.

It is rated at 800W continuous, 1600W program and 3200W peak at 8 ohms, so it moves a lot of air and lays down the deep bass that full-range tops cannot reach on their own.

The enclosure is 13-ply birch plywood with a tough black DuraFlex finish, and it has a top-mounted pole socket so you can fly a matching top directly above it.

Connection is through dual Neutrik Speakon NL-4 sockets, one input and one thru, which lets you feed the sub from your amp and daisy-chain a second sub off the same run.

The most important thing to understand before you rent it is that the SRX718S is passive. That means it has no amplifier built into the cabinet, so it will not make a sound on its own.

You drive it from a separate power amp rated for an 8 ohm subwoofer, connected with a Speakon lead, and you pair it with full-range PA tops so the mid and high range is covered too.

This is the standard way club and touring rigs are built, and it gives you clean, punchy low frequencies for a room or an open-air function.

If you do not already have an amp or Speakon cable, rent them alongside the sub and we will supply a matched set so everything works together on the day.