Mark_Seaton
I spent much of this week finishing up a pre-production batch of 8 SubMersive F18 subwoofers. This is a new, modular, single 18" sealed subwoofer we will be offering as a black solution intended for behind screen walls and similar applications. We will be rolling out sleeker, veneered options soon after these in both single front firing and dual opposed configurations. I'll have some installation pictures posted in the next couple days as this system has the 6 sparks from Axpona as surrounds and an 8' tall stack of 4 F18 modules in each front corner.

Here are a couple fun pictures to start:

Awesome basement in a long time friend's brand new home not far from Boulder, CO.
CR-F18i-wide-shot-sm.jpg 
Lighting should never be underestimated. [cool]
F18i-LED-Dolby.jpg

That top module was fun to get in place!
Mark-4xF18i.jpg
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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Mark_Seaton
The earlier posted pictures were some quick shots I was able to take on my phone, but I fortunately was able to borrow a real camera to grab a few more shots in this somewhat dark, but very cool theater.

The owner of this theater is a friend from before Seaton Sound came to be from my time working more in the pro audio world with Tom Danley at ServoDrive/Sound Physics Labs.  Chris is a sound contractor who installs large house of worship systems, mostly with seating in the 1,000-5,000 capacity range.  After flipping many fixer-uppers over the past 15 years he and his family set out to building a new home from scratch not far from Boulder, CO.  When it came time to plan the basement entertainment space, he gave me a call and asked what I had available for subwoofers and surrounds.  He already had some larger, 3-way, EAW studio monitors for front LCR so we allowed for future upgrades there but focused on the subs and surrounds.  Being that his 35 person company installs premium concert-grade systems he wanted to have something special he could really have fun with when entertaining friends and guests without having to make the "plumber with the leaky faucet" excuse.  This spring we settled on his room being the proving ground for our new SubMersive F18 subwoofers and a first installation of the 6 Spark XC loudspeakers demonstrated at Axpona 2015.

Being a dealer for BSS & Crown he utilized a BSS London processor to control his whole house system along with the theater, allowing us to implement the Spark's in the XC1 version that utilizes 1 amplifier channel per speaker and DSP for response correction.

Of course the fun part is the 8 SubMersive F18 subwoofer system.  Prior to framing out the front wall, Chris measured a sealed subwoofer in the front corners and all along the front wall to verify we had a workable transfer function to the 2 rows of seats.  Fortunately the results were promising, so we proceeded with the plan for 2 stacks of 4 F18s in each front corner.

Box dimensions are 23.5" x 23.5" x 17.5" deep, making for a 95" tall stack with feet on the bottom unit and a rubber pad between upper units.  Please note the sides and back of this first set had to be quickly painted by us in house to meet the deadline for a housewarming party.  Fortunately the fully lock-mitered construction makes a quick coat of black much easier.  As you can see the sides really only need to be dark as they will never be seen behind the fabric panels.  The 1 1/8" thick face plate was finished by our cabinet shop as this is what gets illuminated by the remote controlled LED lighting.

F18i-pre-production.jpgF18i-2of4.jpg 

Getting the 4th unit in place without a lot of room to work on the sides was a bit of a trick, but everything fit very nicely:
Mark-4xF18i-setup.jpgMark-4xF18i.jpg

02-left-stack.jpg  01-right-stack.jpg

CR-Front-Wall.jpg

The shots from further back make it tough to see the detail of the thick face plate and large 3/8" flat head machine screws that hold it in place.  Here is a cool look up the stack of 18s:
03-UPstack.jpg 
Of course what fun is it to assemble such an impressive subwoofer system and not be able to peek under the hood, or behind the curtain...  Blue LED strip lighting to the rescue:
F18i-blueLEDstack.jpg 
I took these 2 shots as the Art of Flight BluRay was loading the Dolby intro [eek]
F18i-LED-bubbles.jpg

F18i-LED-Dolby.jpg   


Here you can see the Spark XC1s tucking into the corner of the ceiling as the 6 surrounds.
Right wall:
07-Right-Sparks.jpg

Rear wall:  
08-Rear-Sparks.jpg 
Left wall:
09-Left-Sparks.jpg 

They have some cool, custom printed acoustic panels on the way for the left wall you see above.

Of course the hardware wasn't the only well thought out part of the room.  The system really does look and function very well in their large basement entertainment area:

CR-F18i-wide-shot-sm.jpg 
05-right-rear.jpg
04-leftt-rear.jpg
06-rear.jpg   
With the blackout shades in place (left above) the hardware really does disappear and draw you into the movie:
10-Interstellar.jpg 
A fun side bit is that the owner is not only a movie lover, but has had his share of fun autos.  He has owned this bit of movie nostalgia for quite a few years which now has a nice home in the new garage (yes, it gets driven):
Delorian.jpg
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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nash23
Look forward to seeing the single subwoofer
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DC3
Ready to see this beast and hope it is as well engineered and manufactured as the current models.  I have really enjoyed my system and the submersives are the anchor.  Thanks again for making a very nice product, now hurry up and post some pix![biggrin][biggrin]
Don
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Stereodude
Even though I'm DIY'ing my HT subs, I'm always fascinated to see and hear what Mark comes up with.  They always set the bar everyone else aspires to.
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Mark_Seaton
Thanks guys. I just added a few pictures to the first post, more to come.
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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Rooster
I know you said it's intended for "behind the screens" but man that looks sharp. Particularly with its apparent size...it's got some WAF.

Eagerly wIting in the details of this guy!
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Kain
Rooster wrote:
I know you said it's intended for "behind the screens" but man that looks sharp. Particularly with its apparent size...it's got some WAF. Eagerly wIting in the details of this guy!


+1!
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Stereodude
Mark_Seaton wrote:

Mark-4xF18i.jpg 

The most dangerously living man in the world...  He doesn't always work around and with heavy objects, but when he does,...  It's barefoot!
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Mark_Seaton
Rooster wrote:
I know you said it's intended for "behind the screens" but man that looks sharp. Particularly with its apparent size...it's got some WAF.

Eagerly wIting in the details of this guy!


Dimensions were kept to reasonable depth of only 17.5" including the cover plate which fully recesses the surround making for ~18" total depth. The face dimension is 23.5" square. While grills are not standard for this application the big 3/8" machine screws on the face allow us to offer an optional magnetic grill that will match the 30deg bevel on the face similar to the new Spark. Coincidentally this theater also has 6 of the prototype Sparks as surrounds.
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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DC3
That space is super cool and the subs look fantastic!  Does he have an acoustically transparent screen?  Hope you got a day of snow in at Arapahoe!  Talk soon….
Don
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Rooster
Mark_Seaton wrote:
Rooster wrote:
I know you said it's intended for "behind the screens" but man that looks sharp. Particularly with its apparent size...it's got some WAF. Eagerly wIting in the details of this guy!
Dimensions were kept to reasonable depth of only 17.5" including the cover plate which fully recesses the surround making for ~18" total depth. The face dimension is 23.5" square. While grills are not standard for this application the big 3/8" machine screws on the face allow us to offer an optional magnetic grill that will match the 30deg bevel on the face similar to the new Spark. Coincidentally this theater also has 6 of the prototype Sparks as surrounds.


that's verrrrry interesting! So I guess the next questions are

- how does is compare to the SubM HP?
- what is the price and shipping date?
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Kain
Quick question!

You (Mark) stated that these are intended to be used behind the screen or in similar applications. Is there a reason for this because I think they would look mighty fine if placed in-room.
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FOH
A well placed offering within the product line.

Oh yeah;
"in both single front firing and DUAL OPPOSED configurations"

Exciting stuff for sure, very cool.



All the best
Kevin


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Mark_Seaton
I am now back in Chicago and I'll be adding more details and pictures as they are available.

Kain wrote:
Quick question!

You (Mark) stated that these are intended to be used behind the screen or in similar applications. Is there a reason for this because I think they would look mighty fine if placed in-room.


Like with many designs, the intention does not limit possible uses.  If you need a functional, black box that is well made but a little on the industrial side, this might work perfectly well in a dedicated room where the gear is in plain view.  Obviously many purchase other subwoofers with less aesthetic appeal than the F18.  

This version will be offered as flat black painted MDF.  Of course like most all of our products the mitered assembly gives us clean corners with no visible seams as this design uses very strong lock-miter joints cut on a CNC router with a diamond cutting head made specially for our cabinet shop.  The bevels around the driver cut-out and the perimeter of the face are machined from a solid piece of 1.125" thick MDF.

The finish on the cover panels will be given a little more attention than the main enclosure as this is what will be most visible in the majority of applications, but black paint on MDF can have some minor irregularities vs a buffed, satin finish.

Along with the large machine screws that secure the front cover panel, I have included 6 additional threaded inserts for 3/8" diameter machine screws which allow you to lock boxes together, secure them to a structure (ie earthquake concerns) or even mount them at various height on a wall with commonly available hardware and appropriate structure to support these ~ 100lb subwoofers.  The F18 ships with 6 flat head screws in each of these insert locations where the head sits flush with the enclosure.  The 6 inserts are all spaced 1.5" from an edge with 2 top and bottom at the rear, and top and bottom of the sides at the approximate front-back center of gravity.  This gives us many useful options for securing, stacking an mounting the modules to achieve various goals.  The flat head screws look the same as the 4 on the face of the F18 pictured above.

These first units had the cover panels painted by the cabinet shop, but a house warming party on Friday cut short our time to properly finish the main enclosures, so these have a rough coat a black paint on them.  Of course as you see in the pictures, the enclosures will never been directly seen again after being installed.

The in-room versions with premium aesthetics will pick up many similar design details while better allowing for our various veneer options.  Of course we'll see...  If pricing comes back very attractive on this version, I might consider just doing the F18 with a veneered box and black painted cover plate as the assembly is rather elegant.
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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audioguy
Awesome looking subs and given Mark's demonstrated ability to design, build and deliver super performing subs (and other speakers) I have no doubt these will deliver sonically as well!!

Congrats to Mark on another great product!!!
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Mark_Seaton
audioguy wrote:
Awesome looking subs and given Mark's demonstrated ability to design, build and deliver super performing subs (and other speakers) I have no doubt these will deliver sonically as well!! Congrats to Mark on another great product!!!


Thank you audioguy!  It's always a battle to stay out of races for ever lower prices and bigger SPL numbers.  I focus on solutions that deliver what I want in a product I would want to own for a suitable space.  Effective locations for subwoofers in a room is still a huge factor in the performance each owner realizes where I expect the new modular offerings to allow some unique options in placement and arrays which previously were not available without major compromises in performance.

In my mind even a black box being concealed behind fabric should look polished enough to generate some pride in ownership reflecting the effort and details that go into its execution and resulting sound.  While I'm sure many will end up visible in room, the original concept here was a design that customers will want to install LED backlights on to show what's under the hood without having to pull fabric panels down.  There is of course plenty of function and protection in handling behind the cool looking cover plate, not just aesthetics, but with our very capable cabinet makers it always feels better when something looks like it reflects the effort that goes into bringing it to market.
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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audioguy
Great idea, by the way, to included the ability to interlock the stacked subs.  Since designs of this type (and this power -as opposed to your dual opposed designs) have the potential to "walk", one would certainly like to know that a sub 6 feet off the ground would not decide to sit on the floor, or more importantly, on someone's head !  Very well thought out!!
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FOH
Having always been a fan of the chamfered edges that distinguish much of the Seaton product line, the beveled driver opening combined with the cabinet edge chamfer, really sets it off even more. I really dig the front elevation symmetry.


Also, like audioguy pointed out; the ability to secure multiple cabinets together can sure be worthwhile for practical safety reasons, and secondarily (to a lesser extent) for performance reasons. It’s funny encountering such measures in HT, as in pro audio, ratchet strapping multiple ground stacked cabinets is often used for the same reasons.


Excited to learn more details.

Kevin
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PaulTimm
Mark, so do you think you will be able to make this sub with a slave option available, or in the configuration of the submersive f2, or would that be to heavy to ship?
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Mark_Seaton
PaulTimm wrote:
Mark, so do you think you will be able to make this sub with a slave option available, or in the configuration of the submersive f2, or would that be to heavy to ship?


For a variety of reasons I'll be keeping the 18" offerings to a single front firing 18" and a dual opposed 18".  A dual "F2" style design gets very large (40" height at minimum) and heavy while limiting some options and requiring more inventory.  A stack of 3 18"s makes for a nice ~6' tall stack, and can be powered rather efficiently.  The 18" SubMersive offerings will allow for + and slave units, where the F18i is currently configured for external powering from the rack such as with our SS2-8000 or SS2-12000 (230/240 V) which can power as many as 8 F18i modules. [cool]
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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audioguy
F18i?  "F" = front firing? "18" = driver diameter.  and "i" stands for ???  Maybe independent?  Just wondering
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Mark_Seaton
FOH wrote:
Having always been a fan of the chamfered edges that distinguish much of the Seaton product line, the beveled driver opening combined with the cabinet edge chamfer, really sets it off even more. I really dig the front elevation symmetry. Also, like audioguy pointed out; the ability to secure multiple cabinets together can sure be worthwhile for practical safety reasons, and secondarily (to a lesser extent) for performance reasons. It’s funny encountering such measures in HT, as in pro audio, ratchet strapping multiple ground stacked cabinets is often used for the same reasons. Excited to learn more details. Kevin


Happy to hear you appreciate some of the subtle details beyond SPL numbers I felt worked out very well with this package.

Having dealt with some monster size subwoofers and speakers, a modular approach makes the realization of such ambitious systems possible vs. spending another ~$1000 or more on movers and lifts with greatly increased chances of damage during delivery and installation.  More options to fit more spaces and preferences is always a welcome benefit as well.
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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Mark_Seaton
audioguy wrote:
F18i?  "F" = front firing? "18" = driver diameter.  and "i" stands for ???  Maybe independent?  Just wondering


"i" = install from when I had first thrown a name on it, but I've been thinking it might need to change to not confuse with the international amplifier versions such as the HPi+ or F2i+.  Fortunately at this time changes are but a few mouse clicks away. [smile]
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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Stereodude
Mark_Seaton wrote:
"i" = install from when I had first thrown a name on it, but I've been thinking it might need to change to not confuse with the international amplifier versions such as the HPi+ or F2i+.  Fortunately at this time changes are but a few mouse clicks away. [smile]

The internet never forgets Mr. Spark HC er... XC. [nono]
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