"Direct Coupling -vs- The Typical Isobaric Design"
Patented here is an Electronic, Acoustical, and Mechanical network of sorts:
The Electronic network introduces a delay with two functions. 1) It introduces the appropriate delay between the two woofers so they operate in perfect signal alignment, and 2) it reduces the bandwidth being produced inside the cabinet by more than 3 octaves so that no midrange frequencies exit the port or reflect back through the external woofer.
There is also an engineered progressive Acoustical and Mechanical impedance (inverse to each other) that helps to control the woofers and introduces a precise delay so that the waves being produced by the internal woofer exit the cabinet (through the port) in phase with those being produced by the external woofer. This further extends the lows and makes the entire system more musically expressive.
The result of Direct Coupling is a response time at least 20x faster than other designs in any loading. Increased speed of this magnitude equates to an overall increase in musicality (i.e. image placement, dynamics, transparency, harmonic fill, timbre, soundstage, and air). Additionally, Direct Coupling extends the upper bandwidth by 2 full octaves and the lower bandwidth by 1.5 octaves (in comparison to sealed or ported alignments). A typical isobaric loading limits the upper bandwidth to 200Hz and only extends the lower by a 0.5 octave. Direct Coupling also increases power handling by 10 to 30 times of other loudspeakers while Isobaric will reduce power handling by 50% with all driver sizes.
