D-Fins create a bigger, more detailed stereo image
PMC engineered the distinctive, finned HF driver surround — known on the result6 as the D-Fins — to resolve both of these issues, delivering major sonic benefits. The design widens the stereo sweet spot (which is already generous, in keeping with other PMC designs). The result is an excellent off-axis response over a wider area. The D-Fins also eradicate the cabinet edge effects, ensuring high-frequency sound remains razor-sharp and unsmeared. This means that you have greater freedom to change your position as you work without adversely affecting what you hear, and that the frequency response of the speakers is flat and natural-sounding.
ATL provides sonically superior bass
PMC’s unique ATL (Advanced Transmission Line) places the bass driver near one end of a long tunnel (the Advanced Transmission Line), which is heavily damped with acoustic material carefully specified to absorb the upper bass and higher frequencies radiating from the rear of the bass driver. The lowest frequencies are allowed to pass down the line and emerge from the front vent in the same polarity as the bass unit’s output, so that the vent acts like a second LF driver
ATL bass-loading technology offers exceptional LF extension with no colouration, identical tonal balance at all levels, and higher SPLs without compression or listener fatigue.
Laser Measurement — for the ultimate precision
The result6 is the first PMC product to benefit from their groundbreaking laser-based measurement system. This performs extremely accurate assessments of the drivers’ performance by rapidly and repeatedly scanning the surface of the drive unit during operation, measuring every micro-movement with phenomenal accuracy.
In PMC's two-stage driver refinement process, the design of the bass unit is first optimized following a series of laser measurements conducted in free space. At the second stage, the driver is fitted into the loudspeaker cabinet and ATL. The laser measurement system is then used again, this time on the complete loudspeaker, and the drivers, cabinet and ATL are honed in situ, the process being repeated until their optimum performance is attained. In particular, the ATL and bass driver are tuned so that the driver produces the maximum possible output for the minimum possible excursion, which eradicates distortion and colouration.