1899 LCR Build - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 108 Old 11-05-2015, 11:01 AM - Thread Starter
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1899 LCR Build

Well, it's finally time! I'll be building 3 x 1899's for front left, center and right channels for my home theater. I will also be running 4 x Pure 10's for surrounds. All speakers will be driven with a Hypex amp (build in my signature). Each channel of the amp will do 300-400 watts @ 4 ohms, although, I doubt any of these DIYSG speakers will ever see that much.

My future home theater room is still in construction...it will be 20'x12'x8' when completed. A sealed baffle wall will be built at the front of the room. The wall will hold all 3 1899's, as well as 8 x HT18 subwoofer drivers. There will also be 4-8 sealed HT18's in the back of the room. I don't know if I should call it an IB or a large sealed setup, but it will be very similar to what MKTheater is currently running. I still own and currently use a lil wrecker horn subwoofer (which is amazing). The plan was to build 3 more lil wreckers for the future room, but I feel like I'm missing out on the <15Hz stuff, so that's what pushed me to try this IB/large sealed setup.

The 1899's will sit flush on the baffle wall. The plan is to build the speaker enclosures as designed (or close to anyway), install a cleat edge on the speakers near the front baffle, then mount/seal them onto the baffle wall. I plan to "toe" in the left/right sides of the baffle wall, so that the left and right 1899 speakers are aimed directly at the mlp. A 130'-140' AT screen will sit in front of the baffle wall, and "cover up" all drivers. I realize placing the 1899's in a baffle wall will have an effect on their frequency response. I source all content through JRiver/HTPC, so I have plenty of tools and eq filtering available to use if anything needs to be tweaked or ironed out.

I am fully aware of how much overkill, extra headroom, and craziness this 1899 + 12-16 HT18 setup will be in my small room. I'm single, own my home, and have the time/resources to go crazy at this stage in my life, so please, no haters. Only positive energy allowed here!

So far, I've received the CNC front baffles, the 18" woofer drivers, 12" mid ranges and most of the crossover parts. Erich will get me the CD's, waveguides and remaining crossover parts soon.

I hope to have these built and finished by December, but depending on how weekends go and when Erich can get me the remaining parts, it may be closer to Christmas. Once they're done, I'll do my best to provide unbiased impressions. Anyone in the DFW area is welcome to come over and have a listen. Another local AVS member and I might try to get an assortment of DIYSG speakers (1899, 1099, Pure 10, Volt 10) into the same room at one time and do some live comparisons.

Picture of the front baffles...if you look really close, there's a Pure 10 enclosure on the bottom right

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post #2 of 108 Old 11-05-2015, 11:01 AM - Thread Starter
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Final pictures! Some sealed SI HT18 cabs too! All cabinets got a 1/4" roundover on edges and painted with Black Behr's Restore 4x.








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post #3 of 108 Old 11-05-2015, 11:17 AM
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wow. I did not expect the first 1899 build on here to be in a room that size! lol. Thats about the same size as the room I am building and I thought the 1099's were going to be overkill

How far from the screen is the seating and what screen/ pj are you going to use?

Good Luck with the build! will be epic for sure! At least you wont have to wonder "what if?"

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post #4 of 108 Old 11-05-2015, 11:30 AM - Thread Starter
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Originally Posted by brian6751 View Post
wow. I did not expect the first 1899 build on here to be in a room that size! lol. Thats about the same size as the room I am building and I thought the 1099's were going to be overkill

How far from the screen is the seating and what screen/ pj are you going to use?

Good Luck with the build! will be epic for sure! At least you wont have to wonder "what if?"
No doubt, I'm sure the 1099 would be perfect in my room, buttt...I just feel so bad for all you guys who have to consider WAF. I feel like I owe it to the community to not hold back, hehe.

I'll be 8-10' from the screen. I know, I know, that's wayyy too close, please don't flame me. Right now I sit 6' from a 100" screen and it still doesn't seem big enough. With 4k around the corner, I think sitting this close to such a large screen isn't all that crazy. Until then, I'm ok with seeing the pixels @ 1080

Right now I'm looking at an Optoma HD26 or HD28...should be enough light for a ~140' screen. I know several people will say those projectors don't belong in a HT, but DLP is crazy sharp and even though the black levels aren't great, they're still a great value. I'll save up the cash for a "good" 4k projector when the prices finally come down.

EDIT: I'll be building the screen, likely using Seymour Center Stage UF material.
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Last edited by Patzig; 11-05-2015 at 11:33 AM.
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post #5 of 108 Old 11-05-2015, 11:42 AM
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keep the BenQ 1070 in mind as well. I had one a few years ago and its super sharp with great colors.
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post #6 of 108 Old 11-05-2015, 12:16 PM
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How could anyone hate this !!! Looking forward to someone as crazy as Erich build these beasts.
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post #7 of 108 Old 11-05-2015, 01:24 PM
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Those poor Fusion 10s, it's just not fair
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post #8 of 108 Old 11-05-2015, 01:43 PM - Thread Starter
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Originally Posted by tuxedocivic View Post
Those poor Fusion 10s, it's just not fair
Lol, I love my fusion 10's though, they will make some mean surrounds. Got 2 of them painted and buttoned up. Oh and I dusted the woofers with some flat black spray paint too . I cut out a circle in some cardboard to make sure I didn't get any spray on the surrounds.

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post #9 of 108 Old 11-05-2015, 01:54 PM
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Very cool painting the cones. I wanna try that and see how it goes.
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post #10 of 108 Old 11-05-2015, 02:24 PM
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Reserved, this should be awesome!!
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post #11 of 108 Old 11-05-2015, 03:14 PM
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Oh this will be epic, I am in.
Will these be the first 1899's in the wild?
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post #12 of 108 Old 11-05-2015, 03:18 PM
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Subscribed, looking forward to many build pictures and most importantly your listening impression
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post #13 of 108 Old 11-05-2015, 03:20 PM
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I've been waiting for this thread. Was about to start a thread asking when this thread was gonna start haha
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post #14 of 108 Old 11-06-2015, 06:57 AM
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Definitely subscribed! I can't wait to see this come together!
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post #15 of 108 Old 11-06-2015, 07:05 AM
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post #16 of 108 Old 11-06-2015, 07:14 AM
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If you're going this far, you might as well make it 16- HS24's instead of the 18"s!
You could run the place like a dentist's office and start charging people to remove their fillings for them using their song or movie of choice!
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post #17 of 108 Old 11-06-2015, 07:38 AM - Thread Starter
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If you're going this far, you might as well make it 16- HS24's instead of the 18"s!
You could run the place like a dentist's office and start charging people to remove their fillings for them using their song or movie of choice!
Lol, 2 x HS24's would cost more than the 16 x HT18's I bought. Man, 2 of them in a front baffle wall sure would be sweet though.
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post #18 of 108 Old 11-06-2015, 07:49 AM
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Lol, 2 x HS24's would cost more than the 16 x HT18's I bought. Man, 2 of them in a front baffle wall sure would be sweet though.
Yeah, no doubt! Maybe you could buy a couple of HS24 baskets/cones from Nick just to showcase up front just like giant stacks of fake Marshall guitar cabs that some bands would use on stage!
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post #19 of 108 Old 11-06-2015, 08:03 AM
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From a WAF strangled HT guy--I salute you!

What I'm pondering for mains, the Fusion 10--you use for surrounds (I'm not worthy) I guess your next project is to use my proposed Volt 10 surrounds as headphones?

Back in my single days, I used a pair of 4 foot tall 3-way bi-amped PA speakers in the living room--there is just something about having more than you can handle yet the drivers are snoozing along. If you are going to build a room around the system, overkill is the rule since most of us don't need to alter the structure of the house to swap speakers!

Looking forward to reading the dream, getting comparisons between Fusion 10's and Volt 10's--and the 1899 VS 1099. May the paint never run, the glue always harden correctly and the sanding remain smooth.
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post #20 of 108 Old 11-06-2015, 08:13 AM
 
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thing is...I CAN fit these...behind my AT wall...I just wish they were out in the wild already for me to hear the impression haha
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post #21 of 108 Old 11-06-2015, 08:25 AM - Thread Starter
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Originally Posted by 18Hurts View Post
From a WAF strangled HT guy--I salute you!

What I'm pondering for mains, the Fusion 10--you use for surrounds (I'm not worthy) I guess your next project is to use my proposed Volt 10 surrounds as headphones?

Back in my single days, I used a pair of 4 foot tall 3-way bi-amped PA speakers in the living room--there is just something about having more than you can handle yet the drivers are snoozing along. If you are going to build a room around the system, overkill is the rule since most of us don't need to alter the structure of the house to swap speakers!

Looking forward to reading the dream, getting comparisons between Fusion 10's and Volt 10's--and the 1899 VS 1099. May the paint never run, the glue always harden correctly and the sanding remain smooth.
Haha, agreed on everything. I'm using the Fusion 10's for mains right now, and honestly, I tap out long before they do. The main reason for getting the 1899's is tactile feel/slam. Even if I end up boosting the upper-mid bass frequencies a ton, the dual 18's will provide all the headroom needed.

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thing is...I CAN fit these...behind my AT wall...I just wish they were out in the wild already for me to hear the impression haha
Dooo ittttt
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post #22 of 108 Old 11-06-2015, 09:07 AM
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I'm using the Fusion 10's for mains right now, and honestly, I tap out long before they do. The main reason for getting the 1899's is tactile feel/slam. Even if I end up boosting the upper-mid bass frequencies a ton, the dual 18's will provide all the headroom needed.
I know the feeling--the monster PA speakers of yore did not lack in mid-bass slam. Looking at the Fusion 10's due to the 98dB efficiency so an AVR will easily and happily drive them to ear damage levels. Most people don't know a dB from an STD but fully understand ringing in the ears.

Since my wife suffers from trauma induced by 4 foot tall carpeted 157 pound speakers, the Fusion 10's will be a win for her--and I can show pictures of what they look like as surrounds. They are also the perfect size to be placed on 24" tall subwoofers to get the proper ear height.

If the Fusion 10's sound good and go to ear bleeding levels in a 20x20x8 room, I can safely assume they will work in a 12x16x8 room--thanks for the review of the Fusion 10. Always the option to add MBM 12's and additional amps if I need more slam!

The 1899's are the ultimate garage speakers for those of us chained to the one that must be obeyed. Hmmmm....

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post #23 of 108 Old 11-06-2015, 10:30 AM
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I'm jealous. ☺
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post #24 of 108 Old 11-06-2015, 11:38 AM - Thread Starter
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These boxes are a little too big for me to handle on my own, so most of the build process will take place at dad's man cave (better tools, better engineer, extra set of hands).

Started with the front baffles. I decided early on that I prefer built in slot ports over the plastic oval shape inserts. Similar to what I did with the Fusion 10's. It's alot more work to build the box that way (especially with the slot ports being on both ends of the enclosure), but I really like the look/feel of it. So we trimmed off ~3 inches at each end.



The CNC baffles were 1" thick, but the woofers and mids needed to be recessed quite a bit to be flush. This didn't leave much MDF for driver mounting screws to grab onto, so an extra layer of mdf was needed. We totally cheated by gluing a solid mdf layer on, then using a router + flush bit to match up all outer edges, as well as cut out the driver holes. Made the job really easy, but probably could've filled a 5 gallon bucket with all the mdf dust we made.



1.75" thick baffles

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post #25 of 108 Old 11-06-2015, 12:59 PM - Thread Starter
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Next up was all other baffles, braces, and midrange chamber. I decided to build the enclosures around 4 inches deeper than designed, just to make sure these end up ridiculously heavy. Jk, just figured a little more volume would help the 18's dig a little bit deeper. I'm not entirely sure on the tuning yet...Erich said they shot for 35 Hz, but I might try for 40-45. Final outer dimensions came out to 62.5" tall x 22" wide x 18" deep. I also decided that we'd build the box with the front baffle INSIDE, rather than the standard "front baffle on top" method. With the slot ports, this is the easiest way to go.

These 2 braces also serve as the 2 sides for the midrange chamber. The speaker is laid on it's side in these pictures. Don't mind the Cowboys losing in the background



Midrange chamber glued up, face down.



Started gluing everything up. There will only be these 3 full window braces. You can see the bottom 2 port supports on the right end, 1.5" thick. I ran those the full length of the enclosure. The actual ports will only come out 2-4" from the front baffle though. There will be more braces added...I'm just not 100% sure where yet. There needs to be bracing behind the 18's for sure.



This is as far as we got. Sat the front baffle up there to see how it would look, but didn't glue it yet.

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post #26 of 108 Old 11-06-2015, 01:44 PM
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Any pictures of those Eminence woofers?
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post #27 of 108 Old 11-06-2015, 01:48 PM - Thread Starter
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Any pictures of those Eminence woofers?
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post #28 of 108 Old 11-06-2015, 02:31 PM
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post #29 of 108 Old 11-06-2015, 03:47 PM
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How deep is that midrange chamber? And where are the braces for it??? The midrange chamber should be braced out the yin yang!

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post #30 of 108 Old 11-06-2015, 04:15 PM - Thread Starter
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How deep is that midrange chamber? And where are the braces for it??? The midrange chamber should be braced out the yin yang!
Lol, ugh, I knew you were gonna tell me that. Alright, I'll add some braces to the chamber.

The internal dimensions came out to 12" x12" x10". I made it a little more narrow, and deeper. A little more volume, but not much.
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