The biggest single improvement you can do to any sound system, regardless of price! The kosmos® is a low frequency energy and stereo image enhancement system. It can provide planet-rattling bass while simultaneously causing the vocals to stand out in a mix and spread the stereo image. In operation, its sub-harmonic (Quake) processor watches the source material, analyzes the bass, then generates additional low frequencies an octave below it. It tracks the original bass without the mud of other bass processors, and is tuned to your speaker size for best performance. The Quakes activity is seismically monitored and indicated by an LED. Its output level is fully adjustable. In addition to the Quake process, there is an additional bass boost circuit - Thud® -- tuned an octave above the sub-harmonic range, which can be used to fill in and fatten out the low end. The left-right stereo image can also be intensified with the Xpanse® control, which gives improved separation and clarity (atmosphere). All inputs and outputs are balanced. To guarantee proper levels, an input gain control is provided. A 0 dBu green signal LED and a +10 dBu red signal LED assist in input level setting. The subwoofer output has its own crossover and level control which supplies an equalized bass signal for systems with subs. The effects (including the added Quake and Thud® signals sent to the subwoofer) can be bypassed for the occasional reality check.