Don’t forget that deep bass and maximum power isn’t everything when it comes to a subwoofer. If you’re planning on using the subwoofer for live performances, then you’ve got to make sure that it isn’t a hassle to carry. The built-in 5000W Class D amplifier is now in its 3rd generation, proving incredible performance with unparalleled efficiency and minimal thermal waste. With the systems DSP running everything via monitored inputs and outputs, The XW118 has features such as automatic input overload protection, overvoltage protection, and thermal shutdown with a energy saving ECO mode when no input signal is being received. The RCF SUB 8003-AS II is a 2200w active subwoofer that is equipped with an 18-inch woofer, a powerful DSP and a digital amplifier that gives you an incredibly high output with amazingly low distortion and a super-clear, natural sound. The 8003-AS II is perfect for any 12/15-inch satellite speaker setup and works best alongside RCF Art 7, D-Line or 4PRO speakers.

Only passive subwoofers need a separate power source, their active counterparts already have one built inside. Passive subs must be connected to a separate power amplifier to work efficiently whereas an active subwoofer draws its own power directly from the mains. The two main attributes that contribute to portability are the design of the handles and the weight of the unit. An ergonomic design – often with handles inside deep recesses – will allow for much easier carrying.

Features

This beast of an active subwoofer comprises a pair of long excursion, direct radiating 4-inch voice coil, neodymium magnet, 18-inch loudspeakers. Front loaded in a bass-reflex tuned enclosure with laminar ports and a set of highly efficient perforation gradient speaker grilles. Its design is classic Amate, with a vertical layout and smart appearance that only hints at its huge 141dB capability. Please note that this extended warranty is currently only available on products sold within the UK, EU or EEA, and is subject to the terms and conditions as detailed on the extended warranty certificate provided. Like every JBL Professional product, the 718S undergoes stringent testing that goes above and beyond any conditions the product would face in the real world. Our industry-leading 100-hour power test ensures longevity so musicians and audio engineers can rely on JBL components in any scenario. In an installed application, multiple KLA Series loudspeakers can be "daisy-chained" for total gain control from a single remote pot wired to the on-board Phoenix-style connector. Additional power module characteristics on KLA include a balanced, line-level XLR input in parallel with an XLR "Thru" connector, powerCON In and Thru connectors, Attenuation Control and LED indicators for Signal and Limit, as well as discrete LED indicators for Power/Standby status.

Higher power subs are preferred by many professionals as the larger wattage denotes the overall power of the driver itself. The size of the inner speaker driver does not always mean it is the better choice, this comes down to power and wattage alone. For instance, subwoofers at 600W do not necessarily need to be used six times as loud as a 100W sub, it is just an indicator of the subs potential and not necessarily a finish line so to speak. Subs connected to a television provide a far more effective sonic clarity, a connection is simple to do and it will immediately improve the sound quality of all TV-based entertainment. The above does depend on the quality of your TV, you may have an expensive system with excellent built-in speakers but lesser TVs tend to sound rather tinny, especially during movies. As mentioned, a subwoofer's main purpose is refining bass tones, but coupled with lesser speakers you can get the very best out of your existing equipment by incorporating one into your home. Does a subwoofer need a power source? The JBL EON718S 18-inch subwoofer is part of JBL’s new EON700 Series of powered PAs, which represents a major step forward in innovation and technology by delivering truly intelligible, clearly consistent coverage at any volume level.The EON700 Series leverages the latest acoustic science, transducer designs, cabinet materials and advanced DSP and control technologies to deliver extraordinary performance in a fully professional, highly flexible, easy to use, portable system. When it comes to the voice coil in an 18-inch subwoofer, you’ll tend to have a choice between a 3-inch voice coil or a 4-inch voice coil. The difference between the two is minimal, and this feature should only be considered as one element of the subwoofer. There’s no need to simply choose one subwoofer over another because of the size difference in the voice coil. Pole Mountable