15 inch and 18 inch subwoofer driver
Low distortion, low compression subsonic to upper bass driver
The subtle transient pulses in your favourite sci-fi movie, the crashing break of the surf followed by the deep rumble as it collides and collapses within itself and rolls onto the shore. These sensations are meant to bring you into the theatrical experience, not as an observer, but as a participant. An emotional respite and all encompassing feeling.
In cinema and movies, deep bass often exists all on its own, like the examples above, whereas music has highs and lows combined that mask distortion and mechanical noises from the subwoofer that are commonly generated from the very low frequencies. Therefore, movie audio reproduction does not have the luxury of hiding behind other audio sound in hopes of skirting poor engineering and low quality manufacturing in favor of a lower price point. To best resolve these demanding characteristics of cinema audio, a driver with lots of clean linear stroke and a stiff magnetic field is needed. This is where an underhung driver should work best in principle, however common problems with underhung drivers are low Xmax and power handling. The magnetic field is much longer for underhung designs than for overhung, therefore the underhung motor design is much more expensive to manufacture. As a result some manufacturers usually favour smaller voice coils, lower Xmax, and weaker magnets, and sacrifice the needed power handling and low mechanical driver noise that cinema sound requires. This has given the underhung design a bad reputation, but at Harbottle Audio change has arrived. Enter the GUJvX, the solution for cinema sound. An upgrade to the GUJv1, the GUJ18vX moves just as much air as the famous LMS Ultra, if not more and with far less overall distortion and less power compression, which means that you get a clean and clear bass experience that is far beyond the THX benchmark.
To get the most out of your home cinema system, you need long excursion drivers with very high power handling and very low distortion. These driver characteristics make easy work of the dynamic material found in todays' blurays. However, when room modes get out of control, the general consensus by the masses is to add another subwoofer. What is usually overlooked is the fact that room modes are antagonized and excited by harmonic distortion caused by the physical properties of the driver. So adding more subwoofers only evens out the distortion that causes the room mode issues, it doesn't actually get rid of the room mode itself. The GUJvX motor group offers extremely low distortion by making the magnetic field very stiff and even throughout the steel of the motor along with excellent control over flux modulation. This helps quiet excited room modes and replaces them with crystal clear bass, right up to the limit of what the driver can handle. The GUJvX is safe to push hard or even overdrive, because it is designed to give you audible signals in the mechanical parts of the driver that indicate when it is pushed past its limit well before it will suffer damage.
If you are looking for a lower compression and lower distortion alternative to the LMS Ultra 5400, the GUJvX driver in a 18 inch layout will satisfy that need and give you Nathan Funks signature driver characteristic of smooth and seamless system blending due to an excessively wide frequency response, which allows you to use a higher than average crossover point.
In car audio, the main issue is that the bass tends to sound like one note. The Xcursion Series subwoofer drivers are designed to eliminate this problem by focusing on deep bass with lots of usable frequency response. This will give your car audio system detail and depth of sound quality that has never been experienced before. If you want high end sound in your car, the FWA GUJ (Judge) is the subwoofer you need.
The GUJvX, the first choice for awesome deep bass reproduction.