here is the quote on his "ask Richard" section of his website:
Binger (2/19/15): Hello Richard. Hope things are well in sunny California. Any plans to upgrade the terrific coaxial drivers you use in the VCC-5 and the VSM's to the balsa stiffened perfect-piston design ? I am thinking of trading my Quatros in on Quatro CT's but I use a Meridian G68 processor and the Trifield DSP to get three channels from stereo sources. I am concerned that if my VCC-5 is not as clean as the Quatro CT's in the midrange , it won't work as well as it does now, ( which is phenomenal). Also Meridian's digital room correction works as well as your analog equalizer, but is a LOT easier to use (I've done it both ways). Also, have you heard the Meridiam M6's ? This is Meridian's first (and only) phase coherent speaker and they sound stunning in my office. Very interesting approach which uses a very low crossover (200 hz) for the integral 5.5" subwoofer and a full- range, digitally equalized 3" driver from there up. It shouldn't work but it does - very similar sound to your Quatros.
HELLO BINGER, WE ARE NOT CONSIDERING PERFECT-PISTON DRIVERS FOR OUR COAX-BASED SPEAKERS BECAUSE OF COST. THE TOOLING, MATERIALS AND LABOR WOULD INCREASE THE VCC-5’S RETAIL PRICE TO WELL OVER $12,000. AT THIS PRICE SALES WOULD BE MUCH LOWER AND MAKING IT A PROFITABLE PRODUCT WOULD REQUIRE INCREASING THE RETAIL PRICE EVEN MORE. I USE THE VSM-1 SIGNATURES AND THE VCC-5 WITH MY MODEL SEVENS AND EXPERIENCE GREAT SOUND. THANK YOU FOR THE COMPLIMENT THAT OUR ALL-ANALOG BASS-EQ SYSTEM WORKS AT LEAST AS WELL AT THOSE FREQUENCIES AS YOUR DIGITAL ROOM CORRECTION SYSTEM WITHOUT DIGITIZING THE WHOLE SIGNAL. WHEN YOU UPGRADE TO THE QUATRO CT OR 5A CARBON THE RESOLUTION OF YOUR SYSTEM WILL INCREASE DRAMATICALLY AND I GUARANTEE YOU CAN USE AN ALL-ANALOG SYSTEM WITH OUR POWERED-BASS EQ SYSTEM AND MAKE IT SOUND BETTER THAN ANY DIGITAL DSP-BASED SYSTEM. IT DOES TAKE EXPERIENCE AND TIME BUT WITH PATIENCE AND PERSISTENCE THE REWARD IS GREAT. MANY PEOPLE WILL USE AUTOMATED DIGITAL ROOM CORRECTION SYSTEMS BECAUSE IT IS EASY. BUT ENOUGH HIGH-END DEVOTEES ARE GOING BACK TO TURNTABLES AND LP RECORDS BECAUSE IT SOUNDS BETTER. WE NEED TO KEEP OUR BEST SPEAKERS PURE ANALOG AND DIGITAL-FREE SO THAT ADVANTAGE IS NOT LOST. WE ARE INVESTIGATING DSP FOR LOWER-PRICED SPEAKER APPLICATIONS BECAUSE IT COULD BE LESS COSTLY THAN USING EXPENSIVE HAND-SELECTED COMPONENTS.
ard1