If you want a rugged and powerful sub, then the JBL SRX818S fits the bill. It's a passive subwoofer that's equipped with an 18-inch speaker and is able to deliver impressive low tones. It boasts a frequency range of 28 to 150 Hz and a maximum SPL of 135 dB that will give your PA set a broad audio spectrum. Hooking it up is easy with the two SpeakOn connections; one for the incoming signal and the other to send it through. In terms of transport, the sub has four recessed handles and suitable for attaching wheels underneath. Finally, an M20 stand flange completes the picture. Specifications Product features 6.
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