Holy 1899! - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 127 Old 01-15-2015, 09:12 AM - Thread Starter
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Holy 1899!

http://www.diysoundgroup.com/home-th...kers/1899.html

18" woofers are too big for me, but I'm impressed!!
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post #2 of 127 Old 01-15-2015, 09:18 AM
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I'm in for (3) my fall 2015 start build upgrade!!
(build these, then re-do room for Atmos/3D sound with new AT screen/etc)
I won't be the first on the AVS block to do these, but can be one of the first in SE Michigan to do them
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post #3 of 127 Old 01-15-2015, 09:39 AM
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I'm guessing the prebuilt crossovers are gonna be a hot seller with these.

It's hard to tell from the pic but that looks like the 15" Seos. Why not use the 18"?

It doesn't look that big in the pic but it has to be adult sized.
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post #4 of 127 Old 01-15-2015, 10:02 AM
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post #5 of 127 Old 01-15-2015, 10:05 AM
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Main thread

https://www.avsforum.com/forum/155-di...s-maximus.html

I've been keeping tabs on this one. My LCR needs upgrading when I have the funds.
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post #6 of 127 Old 01-15-2015, 10:12 AM
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These look freaking awesome. I have zero need for them, but want to build them just because. I would say garage speaker but you can already hear my 1099's clearly in the garage.

Way to go Erich and all who worked on these.
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post #7 of 127 Old 01-15-2015, 10:32 AM
 
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That is maximus right? Yeah looks pretty kick ass.
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post #8 of 127 Old 01-15-2015, 10:50 AM
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Quote:
Originally Posted by Mfusick View Post
That is maximus right? Yeah looks pretty kick ass.
That's the 1899. Maximus is a single woofer design with two different woofer options, b and c for full range or eminence for a not so full range
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post #9 of 127 Old 01-15-2015, 11:24 AM
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Quote:
Originally Posted by Samps View Post
It's hard to tell from the pic but that looks like the 15" Seos. Why not use the 18"?
I'm far from the most qualified person to answer this, but I think once the waveguide is bigger than the midrange there is no benefit to going even bigger. It's about the waveguide being large enough to maintain directivity down the the crossover frequency, which in controlled directivity designs is dictated to some extent by the size of the mid. A huge waveguide that maintains pattern down to 650 Hz is pointless if you're going to cross at 1100 Hz anyway. (I made up both those numbers as an example, by the way.)
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post #10 of 127 Old 01-15-2015, 11:28 AM
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Originally Posted by antisuck View Post
I'm far from the most qualified person to answer this, but I think once the waveguide is bigger than the midrange there is no benefit to going even bigger. It's about the waveguide being large enough to maintain directivity down the the crossover frequency, which in controlled directivity designs is dictated to some extent by the size of the mid. A huge waveguide that maintains pattern down to 650 Hz is pointless if you're going to cross at 1100 Hz anyway. (I made up both those numbers as an example, by the way.)
Yeah but... it looks cooler!
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post #11 of 127 Old 01-15-2015, 11:52 AM
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Quote:
Originally Posted by mtbdudex View Post
I'm in for (3) my fall 2015 start build upgrade!!
I can't wait me too!

My Build Thread
Equipment Speakers:
3x 1099's for LCR duty
4x Fusion 8's for surround duty
8x subs: 4x FTW21's and 4x SI18's
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post #12 of 127 Old 01-15-2015, 12:03 PM
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I could move my 1099s up to front heights and get these for my LR
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post #13 of 127 Old 01-15-2015, 05:05 PM
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Originally Posted by Fatshaft View Post
I can't wait me too!
Are you no longer happy with your 1099's?
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post #14 of 127 Old 01-15-2015, 05:11 PM
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I can't wait me too!
I'm also wish to have 2 for LR and 1 center channel version
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post #15 of 127 Old 01-15-2015, 05:34 PM
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Not if I build them too.. Of course mine will be used in my up north theater.. I guess that places them in Mid-Michigan..

Marantz 7702mk2, Panasonic 8000 w/ 130" AT Screen HTPC w/48 tb
DIY QSC SC-2150 L,C,R (10) QSC SR-8101 sides, rears & atmos/dst-x
DIY (4) Fusion Tempest, 88 Special
DIY (6) JBL cx12" UM-15", SI-18" subs, BFM Tuba HT, Dayton MKIII 15", (2) PA460 mbm

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post #16 of 127 Old 01-15-2015, 05:45 PM
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I was expecting a stage coach. With subs.
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post #17 of 127 Old 01-15-2015, 06:26 PM - Thread Starter
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I'll buy 3 1099s from you guys if you wanna upgrade.
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post #18 of 127 Old 01-15-2015, 07:36 PM
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Quote:
Originally Posted by dman918 View Post
I'll buy 3 1099s from you guys if you wanna upgrade.
This whole thread was just an evil ploy for dman to get his hands on a set of 1099s.
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post #19 of 127 Old 01-15-2015, 07:45 PM
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Quote:
Originally Posted by mtbdudex View Post
I'm in for (3) my fall 2015 start build upgrade!!
(build these, then re-do room for Atmos/3D sound with new AT screen/etc)
I won't be the first on the AVS block to do these, but can be one of the first in SE Michigan to do them
Quote:
Originally Posted by rlhaudio View Post
Not if I build them too.. Of course mine will be used in my up north theater.. I guess that places them in Mid-Michigan..
I would love to hear these sometime.. Actually I'm not totally sure I want to seeing as I just recently bought 1099s

JVC DLA-RS40 w/003 lamp,DIY False-wall 125" acoustically transparent screen,Darbee Darblet,Sanyo PLV-Z2000 (gaming),7.1 DIYSoundGroup 1099 x3 LCR & Slanted Volt 6 rears x4,Onkyo TX-NR818,Emotiva LPA-1,Behringer EP4000 (x2),Sealed Stereo Integrity HT18"s (x8),Balanced MiniDSP,Cross·Spectrum UMIK-1,DIY Acoustic Treatments,PS3,Sony BDP-S590,Seiki SR4KP1 Region Free BDP,Toshiba HD-A1,Roku,Outdoor Antenna,APC H15 power conditioner,Harmony Smart Control,Rebuilding*HTPC,Leather Theater seating etc.
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post #20 of 127 Old 01-15-2015, 07:46 PM - Thread Starter
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Quote:
Originally Posted by Samps View Post
Quote:
Originally Posted by dman918 View Post
I'll buy 3 1099s from you guys if you wanna upgrade.
This whole thread was just an evil ploy for dman to get his hands on a set of 1099s.

Haha... Maybe
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post #21 of 127 Old 01-15-2015, 08:03 PM
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OH LAWD.

We need a picture of someone standing next to this beast

Receiver: Emotiva Fusion 8100
Fronts: Klipsch klf-10 / Center: Klipsch klf-c7 / Surrounds: Klipsch klf-10
Subs: Two 18" Dayton PA460's + Paradigm PS-1200
Sub amp: Behringer Inuke3000dsp
Television: Sharp Aquos LC70SQ15U
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post #22 of 127 Old 01-15-2015, 08:07 PM
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OH LAWD.

We need a picture of someone standing next to this beast

Werd
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post #23 of 127 Old 01-15-2015, 08:28 PM
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I need to redo that picture of Bwaslo. The oompa loompa head was too big and it makes the speaker look smaller!

Here it is next to some of the other big kits:

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post #24 of 127 Old 01-15-2015, 08:30 PM
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Now THAT is a speaker!

I'm sure it would make a 1099 sound small and weak by comparison. (Is this thing even... on? )

They should make a 1599 too, for those who don't need something so big and expensive as dual 18's.

Not sure if having the 18's 3.2ft apart like that is such a hot idea, but it might be ok with the XO at 100hz I guess.
A 1599 would be slightly better in that regard, but ultimately have slightly less SPL too, so...

Driver spacing was a huge design consideration when I built my fronts. I was able to get my bass woofers within 1.2ft of each other, while also not having dissymmetry, by not going with 18's or 4-way; just 15's 3-way.
[Without going transparent screen and loosing 2ft of room depth, there is no WAY to fit 18" mids and tweeters in my room; and the UM-18 wasn't available then... so an all-18's design was a no-go.]

You'd really have to be a treble-head to need more treble than a Sentinel-15 could output.
A Sentinel-15 will output about [email protected] above 90hz.
Mine would still beat the 1899 below 40hz, but between 40 to 1.2khz the 1899 would win by about 4db me thinks.
I guess it depends on how much mid-bass and mid-SPL and scare-factor you are looking for in that band.
I have kicbin subwoofers that go up to 300hz with the same efficiency as the 1899 does (about 111db/watt for a set), so the 1899 would be all the more important to have if you didn't have kickbin subwoofers.

Last edited by BassThatHz; 01-15-2015 at 08:45 PM.
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post #25 of 127 Old 01-15-2015, 08:34 PM
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So Erich, midbass I have no question will be potent. The description and measurements of the FL450 on the SEOS 15, again no question. How's the mid in comparison to say the Tempest or 1099?
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post #26 of 127 Old 01-15-2015, 08:59 PM
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Originally Posted by BassThatHz View Post

Not sure if having the 18's 3.2ft apart like that is such a hot idea, but it might be ok with the XO at 100hz I guess.
A 1599 would be slightly better in that regard, but ultimately have slightly less SPL too, so...

Driver spacing was a huge design consideration when I built my fronts. I was able to get my bass woofers within 1.2ft of each other, .
A 300 hz wavelength is about 45" long, those woofers look to be at least under that for CTC spacing.

I'm more curious about the low frequency capabilities of this speaker.
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post #27 of 127 Old 01-15-2015, 09:04 PM
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Originally Posted by BassThatHz View Post
A Sentinel-15 will output about [email protected] above 90hz.
Mine would still beat the 1899 below 40hz, but between 40 to 1.2khz the 1899 would win by about 4db.
I'm guessing it would be a bit more than 4db. Going by the Eminence page, just one of the 18's will do over 125db. So 2 per speaker can do some neat stuff.

There's a cheesy video of one 1899 hitting around 115db in my living room running off one channel of an old vintage Pioneer with maybe 90 watts per channel.....not even turned up half way. Nothing was even close to max and the 115db hits were from the bass, not the highs, because I asked Bwaslo to leave it hotter than everything else on the speaker.

He was going to pull the 18's down in the crossover but I asked him to 'leave 'em hot'. I figured anyone crazy enough to build 3 of these probably has a crazy sub set up and wouldn't mind having a lot of extra midbass to play with.

Cheesy video with a cheesy video recorder:





The Maximus-18 started out with an 18" B&C subwoofer. It was a bit crazy in my living room, even with a smaller pro amp. No where near max on that one either.

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post #28 of 127 Old 01-15-2015, 09:06 PM
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A 300 hz wavelength is about 45" long
It only takes a 1/4 of a wavelength to cancel a full crest, as per the visual:
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post #29 of 127 Old 01-15-2015, 09:21 PM
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Originally Posted by Erich H View Post
Just one Eminence 18 will do over 125db.
The 18's are still 99db/watt though right? So you'd only see the full SPL if you were using EQ to boost the <100hz extra hot. I'm sure the 12" mid would give out well before the dual-18's reached 130db+ if running it flat, from say two bridged nu3000's or an AVR.
I was talking about running it flat though, I suppose if you boosted it and ran it up to it's max-watts you could break drywall with it.

Last edited by BassThatHz; 01-15-2015 at 09:26 PM.
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post #30 of 127 Old 01-15-2015, 09:23 PM
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Originally Posted by BassThatHz View Post
It only takes a 1/4 of a wavelength to cancel a full crest, as per the visual:
I dont see what that has to do with preventing lobbing on axis. If they're within a wavelength they will play together on axis. It's going to be pretty hard to get off axis vertically with a tall speaker

edit: heck the typical mtm only has each woofer within a wavelength of the tweeter. The woofers usually arent even close to being within a wavelength of ctc spacing. Only causes problems off axis.

Last edited by Jay1; 01-15-2015 at 09:29 PM.
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