The opening paragraph of the S&V D-Box review you quoted:
Price: $12,000 as reviewed At A Glance: Industrial-grade actuators • Remarkably easy installation • Can be used for simple bass enhancement of music
(Color added by cj)
A little further down in the review:
Complete D-Box systems start at $8,700. For my system, D-Box sent the midmodel of its three Motion Platforms, the SRP-230 ($8,000) to try out with my own comfortably worn couch. In addition to being adjustable for use with sofa/love seats from 50 to 80 inches wide, the SRP-230 has a max load capacity—that’s people, pets, and seat combined—of 750 pounds. Although it has the same adjustable width, the SRP-330 ($10,000) can be loaded with 1,100 pounds. The narrower SRP-130 (also $8,000) is designed to accommodate single seats from 28 to 49 inches wide with a max load of 750 pounds.
(Color added by cj)
Here's an excerpt from one of the "Comments:
Even though I REALLY, REALLY love the experience, I still honestly believe they are too proud of their system. $12,000.00 is the cost at the time of his posting in 2012, I do believe at the present time a 4 actuator system now costs in upwards of $17,000.00. This, in my opinion, is definitely WAAAAAYYY too much!
(Color and emphasis added by cj)
$8,000 to $17,000, for a "shaker"?
Sure, they'll sell some simulators, and some movie theater seating, but just to do tactile response in a consumer HT, that's beyond ridiculous. My Crowson's, which are at the high end of HT tactile actuators, are 1/10
of that cost, and do a spectacular job. I would hope no one is dumb enough to buy D-Box to just use it as a shaker. It may "do" that, but that is clearly not its intended purpose. The MOTION is its intended purpose. Here's another quote from the review that emphasizes this:
The muscle behind the movement in a D-Box-equipped seat consists of four, relatively small (slightly larger than a can of beer), incredibly powerful actuators. Each cylindrical actuator gets attached at or near a corner of the particular piece of furniture that’s going to shake your booty. Working in combination, the quartet of actuators is capable of creating three types of “intelligent movement”—what D-Box refers to as pitch, roll, and heave—that will move the sofa/love seat/recliner forward and backward, side-to-side, and up and down. Each actuator’s range of motion is quite amazing, with the overall span of up/down travel, for example, being at least 1.5 inches. (Try doing that with the typical vibrating tactile transducer!) To make movement seem realistic, the actuators are superfast and ultraprecise. As a result, the D-Box hardware can easily re-create the same kind of resonant vibrations in your home theater chair that you’d feel if there were a Fathom f212-caliber subwoofer in your system.
An overall up/down travel of an inch and a half??? So, if the front moves up 1.5" and the back move down 1.5", that's a total of 3" of offset from front to rear? No wonder I got nauseous from that thing! Try shaking your head an inch and a half. Now do it multiple times in succession. That's not distracting?
"Try doing that with a typical vibrating tactile transducer"? No freakin' thank you! Tactile response is intended to be seamless with the sound. An inch and a half of movement in any direction is WAY beyond that.
Also, that quote puts the F212 comment in full perspective. Even on a suspended floor, there is NO WAY any subwoofer system can generate an inch and a half of motion of the floor. Hell, I don't know of any subwoofer driver capable of an inch and a half of driver displacement, much less the ability to acoustically couple to the structure to force that much motion. Worse yet, an inch and a half of motion of the floor would destroy the structure of the house pretty quickly. An 1/8th inch of motion is more than enough to impart a huge sense of tactile enhancement, even for the loudest and most powerful bass notes in a movie or music. So his comment that the D-Box can impart the same tactile as an F212 is way off
I can't tell if your intent is to convince people of the benefit of the D-Box, or if its to belittle any other kind of tactile actuators, but either way, your posts are not making your points.