After spending the weekend at Art's home I had a lot to catch up with this week in the office, so my apologies for the late contribution. Just as with Art's previous upgrades, with everyone involved the result ended up even more enjoyable than I expected. It seems every time I am involved in an upgrade of Art's system I am able to confirm a hunch and see it realized in his system. As usual the results will have impact on what I push forward with in the future.
Thank you again Art for including me in the now 10 year adventure with your awesome home theater.
Originally Posted by bscool
What are the new 18" subs called, they don't look like the F18. Almost look like the Submersive with 18"?
I see after scrolling down the amps are on the back it looks like so just 1 18" per enclosure?
Good catch. As Art confirmed, these are the first of 2 new models from our upcoming Designer Series. Art received the first of the DS18-20 model which is 20" square on the face and 23.5" deep with the option to have a plate amplifier in the unit as a + model. Brad, aka,
is getting the first 2 of the related DS18-12 model which is 30" x 26" but only 12" deep (+1/2" cover around driver) for his theater currently in construction
Here are some quick pictures I grabbed of both of their subs together before they headed out to each theater:
These deliver all the performance of our F18 subwoofers but were conceived with system designers, installers, and integrators in mind. We run these in much smaller batches and largely per order. They will be a bit higher cost and priced with shipping included and magnetic grills optional if desired. The F18 is a useful size when sitting in room and when visible. While not hard to fit in many dedicated theaters, there are many cases where the dimensions ultimately limit options and when the best location for the subwoofers don't allow the performance we would prefer to install. The goal here is to allow some more creative solutions and better performing results. While I know it's popular and fun to lust and banter over the biggest, baddest, and most obscenely sized boxes available, the right location with a very good sub almost always sounds and performs better than a big brute in the wrong place.
Originally Posted by ccool96
Same goes for the work Mark Seaton did in adding the rear subwoofers. He was able to remove all wall material from the back side of the theater, only leaving the back of wall fabric exposed from the equipment room. Great job!
The results all around were pretty awesome. I've been eyeing poking subs through the back wall of Art's theater for years after taking my first measurements in the room, but I know the other construction coming through with such good aesthetic result and the larger screen making the 2nd row viewing of greater interest, it was time to make it happen.
It should be known that the construction and cutting into the rear wall wasn't done on a whim or guess. I had on file grouped measurements of the 3 in-wall Triad subwoofers, but none of just the rear wall location. In a previous visit to get the desired wow factor in the calibration, Art agreed to have me bring a compact, 12" test subwoofer to verify the efficacy of the intended subwoofer locations in the room. This was very similar to what I did in
's room prior to the eventual SubMersive upgrade where we determined we needed to keep the deep bass power at the front wall of his room. This required measurement of the same subwoofer at the front of the room in the various seating locations as well as at the rear and side wall locations to determine how we could use each in the final calibration. The front and rear locations make for a somewhat tricky, but useful blend at the seats. Finding a best balance for both rows was not obvious, but with appropriate delays we were able to hugely reduce the variations between the rows where the rear row was originally about +/-8dB from the front row before we started. I even put the side wall Triad's to use with a 45Hz high pass filter and lower level to help fill in two narrow, upper bass dips between the rows. All subwoofers outputs were configured as a multi-way speaker so the delays, level, and filtering could be set prior to the Trinnov's response correction. The resulting combination allowed for a much tighter match with less correction needed, where the front rows have a little more punch, and the 2nd row has a little more heft down low with both being very satisfying.
The combination was not about maximum output, where we actually traded some of the maximum combination in either row for a more even response at both seats and through the room. Subjectively this made a very obvious increase in the perceived bass energy in the room as it wasn't just at one area, but rather everywhere in the room. That energy more evenly working throughout the room adds even more of the floor-rippling effect, and in the "subwoofer demo" preset we can easily achieve a hair-shaking experience with common demo material.
Many thanks again to Art for allowing for the time to do the required head-scratching with the bass combination and the tweaking of the Trinnov correction parameters to best work with his room acoustics and the speaker's interactions. The end result really is a big step beyond where we started after the the first default run through the correction. Hopefully more than a few here will get to experience his room if schedules allow for an AVS meet.