M&K Sound X12 Subwoofer


Setup of the M&K Sound X12 Subwoofer

Weighing in at almost 80 pounds, and being 26" high, the M&K Sound X12 subwoofer is not a small beast. After a very enlightening discussion with Claus Glaesner, I was able to procure two of these rather intimidating subs for my review. He believes, as I do, a home theater should have at least two subwoofers, the second preferably along the opposite wall from the first. After maneuvering these rather Spartan-esque boxes into place along the right front and left rear wall, I set out to dial them in to my room.

At first glance (and second and third) the backside of the M&K Sound X12 is a bit intimidating. There are more selectable/usable controls on the M&K Sound X12 than any other speaker I have dealt with. In addition to the usual two RCA inputs, there are two balanced inputs. There are also two RCA outputs and two balanced outputs for optional pass through. The phase selector is a continuous knob from 0-1800 rather than the usual 00 – 1800 rocker switch. There are three low-pass crossover point options. The first is a fixed crossover point which would be used if the rest of your speaker system were comprised of M&K Sound professional monitors, as these all have their internal crossovers set to 80 Hz to match. The second position on the switch is continuously variable, which then leads over to an adjacent dial with crossover points selectable from 50 Hz to 125 Hz. The last position on the switch is "No Low-Pass THX Mode" crossover, recommended if you use your surround processer's room correction software such as "Audyssey" for bass management.

There is an input level control with selectable continuously variable dial (-3 dB to +3 dB) or fixed THX specified level. If your receiver or pre/pro is THX certified, you should use the "THX Fixed" setting, as the component will supply the sub with input gain to match the overall system volume adjustment. On top of all this, there is a selectable bass equalizer with either THX specified processing for movies which utilize bass reproduction according to THX standards of 20 Hz at -6 dB, or anechoic M&K EQ (no) processing, which the manual suggests is ideal for smaller listening spaces. While I am generally in favor of giving the consumer more control, even I found the selectable combinations somewhat confusing.