A 3 way 99db multi configurable SEOS design - Page 33 - AVS Forum

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DIY Speakers and Subs

clausdk's Avatar clausdk
08:47 AM Liked: 47
post #961 of 2356
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Ahh sorry I didnt notice that been a while since I read the thread from the beginning.

Ok that looks solid for my use. We'll be inside +-20 degrees in the couch. Maybe on occasion we'll use our outer positions they would still be inside 45 degrees.

To obtain a clean front look I thought about adding a sub below and extending the baffle to 52". I saw mention of recommended ear height but at 15' listening distance +- a few degrees won't matter?

To match the 1099 should I am for a high sensitivity woofer? Looking at either AE TD10 or audiotechnology 10" with sandwich cone.
tuxedocivic's Avatar tuxedocivic
10:05 AM Liked: 666
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Like an MBM? On the floor as a stand? I'd want about 94db minimum if on the floor.
clausdk's Avatar clausdk
10:26 AM Liked: 47
post #963 of 2356
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As a stand but integrated into the whole speaker and baffle. So same width and high enough that the mid/wg is at earlevel. So I figure basicly it's another "cube" at the bottom.

Guess the TD10H is best suited then also cheaper and doesnt need alot of space/volume.
gpmbc's Avatar gpmbc
10:52 AM Liked: 84
post #964 of 2356
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I would think you need more output than the AE 10" for the purpose of an mbm to really outshine the 2 tens in the 1099 to begin with.
RockItScientist's Avatar RockItScientist
10:53 AM Liked: 11
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Quote:
Originally Posted by tuxedocivic View Post
Rocket, let me know if you'd like any help getting things straightened out.
Thanks Tux but I just went through FatShaft's thread and there is more than enough information to complete the crossovers. I'm about to get started.
clausdk's Avatar clausdk
11:11 AM Liked: 47
post #966 of 2356
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Quote:
Originally Posted by gpmbc View Post
I would think you need more output than the AE 10" for the purpose of an mbm to really outshine the 2 tens in the 1099 to begin with.
MBM = midbass module right?

The purpose is to extent the 1099 from 80hz down to 20hz in room response. From what I read about the 1099 it's build to cross over to subs. I'm just adding a sub at the bottom integrated due to WAF and the wish to play music fullrange with having to turn on my other 6 subwoofers along with their respective 3 Pro amps.

Also it would look more like a high tower speaker and well I think it will look cool:-)

I was also asking for woofer recommendations to extend the few last octaves:-)
tential's Avatar tential
11:27 AM Liked: 45
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Quote:
Originally Posted by clausdk View Post
MBM = midbass module right?

The purpose is to extent the 1099 from 80hz down to 20hz in room response. From what I read about the 1099 it's build to cross over to subs. I'm just adding a sub at the bottom integrated due to WAF and the wish to play music fullrange with having to turn on my other 6 subwoofers along with their respective 3 Pro amps.

Also it would look more like a high tower speaker and well I think it will look cool:-)

I was also asking for woofer recommendations to extend the few last octaves:-)
It sounds like exactly what BassThatHz did. He just took the SEOS design and added 2 Ultimax's to it.

Don't see why you can't just add a sub to the bottom of the tower in it's own separate chamber why not?

My concern would be not getting enough sub output from a 10 inch sub. I think BassThatHz's strategy of 2 Ultimax 15s is the most desirable personally, but I will always pick more subs+bigger subs if I see it lol.
Fatshaft's Avatar Fatshaft
11:30 AM Liked: 256
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Quote:
Originally Posted by clausdk View Post
From what I read about the 1099 it's build to cross over to subs.
To me they are perfect from 80HZ up.
I did numerous tests at full range...they still sound pretty good full range but I DO NOT recommend them FR.
Crossed at 80 or higher is f**ken awesome!
clausdk's Avatar clausdk
11:37 AM Liked: 47
post #969 of 2356
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Quote:
Originally Posted by tential View Post
It sounds like exactly what BassThatHz did. He just took the SEOS design and added 2 Ultimax's to it.

Don't see why you can't just add a sub to the bottom of the tower in it's own separate chamber why not?

My concern would be not getting enough sub output from a 10 inch sub. I think BassThatHz's strategy of 2 Ultimax 15s is the most desirable personally, but I will always pick more subs+bigger subs if I see it lol.
I agree with that. If i am creative I can manage 1.5 c.f. for the sub module. With a 12.5" baffle I am pretty much limited to a ported 10"?
clausdk's Avatar clausdk
11:42 AM Liked: 47
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Quote:
Originally Posted by Fatshaft View Post
To me they are perfect from 80HZ up.
I did numerous tests at full range...they still sound pretty good full range but I DO NOT recommend them FR.
Crossed at 80 or higher is f**ken awesome!
Awesome:-)

For HT I have plenty of subpower I really just want to run some fullrange stereo with minimal gear online. Hey I'm trying to be environmentally friendly here!:-)
gpmbc's Avatar gpmbc
11:47 AM Liked: 84
post #971 of 2356
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Quote:
Originally Posted by clausdk View Post
MBM = midbass module right?

The purpose is to extent the 1099 from 80hz down to 20hz in room response. From what I read about the 1099 it's build to cross over to subs. I'm just adding a sub at the bottom integrated due to WAF and the wish to play music fullrange with having to turn on my other 6 subwoofers along with their respective 3 Pro amps.

Also it would look more like a high tower speaker and well I think it will look cool:-)

I was also asking for woofer recommendations to extend the few last octaves:-)
I was confused, I understand what you're trying to do now and yes mbm = midbass module.
clausdk's Avatar clausdk
11:55 AM Liked: 47
post #972 of 2356
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Ah ok. English isn't my first language so maybe I wasn't clear enough in my initial describtion.

I noticed other builders of the 1099 adding stands or empty cabinet space below and it seemed like a perfect opportunity to squeze in another woofer!
tential's Avatar tential
01:01 PM Liked: 45
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Quote:
Originally Posted by clausdk View Post
I agree with that. If i am creative I can manage 1.5 c.f. for the sub module. With a 12.5" baffle I am pretty much limited to a ported 10"?
If you already have the 1099 parts then yes I guess so.

Or you could go with a Tempest Build and add in 2 subs instead =D. Or go with a Fusion Sentinel Build with subs beneath as well.

Maybe the 10 inch sub will be enough, but I would HATE to be disappointed and if you're going to go with subs in your tower speaker, you might as well go big! That's my reasoning anyway, I'm sure the 10 inch sub would work I'm just not sure how much output you're going to get with it.
Martycool007's Avatar Martycool007
05:07 AM Liked: 173
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As to whether or not a single 10" sub in each tower will be sufficient, It will depend on how big of a room he has these speakers in. If the room is small to medium sized, then a pair of quality 10" subs may be ok, but, if the room is big, then I would assume that it would not be optimal.

Have you considered mounting a larger sub, say...a 15" on the sides of the 1099 enclosure a la Definitive Technology BP-2000 style instead of mounting on the front baffle? I am not sure of the cabinet specs for the 1099, but. I am sure that you could play with the volume in order to get where you need to go'
clausdk's Avatar clausdk
04:34 PM Liked: 47
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Quote:
Originally Posted by tential View Post
If you already have the 1099 parts then yes I guess so.

Or you could go with a Tempest Build and add in 2 subs instead =D. Or go with a Fusion Sentinel Build with subs beneath as well.

Maybe the 10 inch sub will be enough, but I would HATE to be disappointed and if you're going to go with subs in your tower speaker, you might as well go big! That's my reasoning anyway, I'm sure the 10 inch sub would work I'm just not sure how much output you're going to get with it.
Yes that would be unfortunate I suppose. I guess I'll just have to try it out and see. For music I do not think it will be a problem and for movies my other subs will be available.

I always have the option to couple in more subs if the 1099 add on bottom sub isn't sufficient.
clausdk's Avatar clausdk
04:41 PM Liked: 47
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Quote:
Originally Posted by Martycool007 View Post
As to whether or not a single 10" sub in each tower will be sufficient, It will depend on how big of a room he has these speakers in. If the room is small to medium sized, then a pair of quality 10" subs may be ok, but, if the room is big, then I would assume that it would not be optimal.

Have you considered mounting a larger sub, say...a 15" on the sides of the 1099 enclosure a la Definitive Technology BP-2000 style instead of mounting on the front baffle? I am not sure of the cabinet specs for the 1099, but. I am sure that you could play with the volume in order to get where you need to go'
Thats a good idea and I thought about that. I had a silly dream of building curves cabinets so mounting on the side would be challenging although not impossible. Rockport does it However a 15" requires alot more cabinet volume and then keeping the baffle width intact would require a quite deep cabinet. I would be approaching SEOS-Maximus size and then I might as well go all in!

As I just wrote in the previous reply I think an addon 10" subs for music duty will be ok? I don't listen to insane levels with music, although I might with a clean sounding 1099??

At any rate, I need to raise the 1099 by 12-15 inches so instead of just making a stand I could put in a sub and try it out. Also I would be able to distribute some bassresponse in the room this way for possibly smoother seat to seat variation across our couch.
chalugadp's Avatar chalugadp
04:48 PM Liked: 1182
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That's what I am going to try. I will have four smaller ported sub's and on the two front ones will be fusion 15's. I am going to do a curved build for the sentinels.
atabea's Avatar atabea
06:40 PM Liked: 71
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Quote:
Originally Posted by chalugadp View Post
That's what I am going to try. I will have four smaller ported sub's and on the two front ones will be fusion 15's. I am going to do a curved build for the sentinels.
Hey Donny, am curious; what made you go with the Sentinels before hearing the 1099s at JBrowns GTG?. Just wondering as these two speakers have my interest.
chalugadp's Avatar chalugadp
06:59 PM Liked: 1182
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Quote:
Originally Posted by atabea View Post
Hey Donny, am curious; what made you go with the Sentinels before hearing the 1099s at JBrowns GTG?. Just wondering as these two speakers have my interest.
I haven't bought the sentinels yet. Tallest I can go on top of my sub is 32" I just don't have room for towers and sub's separate in my living room. The 1099 are too tall. If I just love them I could maybe go with 1096.

I change my mind a lot so who knows. One week I have this plan and then the next another idea. In my messaging with mtg90 the v2 of sentinels sound exactly what I want at my price point. Can only go up to 450 max for each front.
atabea's Avatar atabea
07:11 PM Liked: 71
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Quote:
Originally Posted by chalugadp View Post
I haven't bought the sentinels yet. Tallest I can go on top of my sub is 32" I just don't have room for towers and sub's separate in my living room. The 1099 are too tall. If I just love them I could maybe go with 1096.

I change my mind a lot so who knows. One week I have this plan and then the next another idea. In my messaging with mtg90 the v2 of sentinels sound exactly what I want at my price point. Can only go up to 450 max for each front.
Thanks, Donny, looking forward to hearing your thoughts on the 1099s at the GTG. Pity you won't have a couple V2 Sents to compare them to. I think Erich mentioned that the V2 Sents might even be a bit less than the V1s, so you shouldn't have anything to worry about, insofar as your "max" is concerned anyway.
chalugadp's Avatar chalugadp
07:22 PM Liked: 1182
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I'm sure the 1099's will be awesome. If I had the dough I would just buy the jtrs 228 but don't have that kind of scratch. I will try to give you a flavour as I am sure several others will.
atabea's Avatar atabea
07:38 PM Liked: 71
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Quote:
Originally Posted by chalugadp View Post
I'm sure the 1099's will be awesome. If I had the dough I would just buy the jtrs 228 but don't have that kind of scratch. I will try to give you a flavour as I am sure several others will.
I've been drooling over some noesis 212s forever but I'll probably never be able to afford them. Thankfully, the SEOS kits can get me within acceptable proximity to sonic bliss.
tuxedocivic's Avatar tuxedocivic
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If you're tight for space, Why not Fusion 8 MTM chalugadp? Isn't that your center? And you like that...
chalugadp's Avatar chalugadp
09:08 PM Liked: 1182
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Quote:
Originally Posted by tuxedocivic View Post
If you're tight for space, Why not Fusion 8 MTM chalugadp? Isn't that your center? And you like that...
It has really weak midbass 60-100hz but more important I am replacing my mtm with the cinema 88 with 15" seos. My wife has hearing aids and I think the 88 will help with dialogue. I have always wanted beefy mains ( never had a pair). Then I will have all seos 15 up front. Plan is in jello at this point. I think I have upgradreitis, its a disease isn't it
tuxedocivic's Avatar tuxedocivic
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Ah gotcha. The special 88 will probably do speech better. Output will be about the same though. If you have big L and R you'll have punch.

Don't forget you can always eq midbass into the speaker unless you are output limited.
lemans24's Avatar lemans24
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Quote:
Originally Posted by tuxedocivic View Post
Ah gotcha. The special 88 will probably do speech better. Output will be about the same though. If you have big L and R you'll have punch.

Don't forget you can always eq midbass into the speaker unless you are output limited.
Which would make a better center for the Maximus-18 that EricH is currently building: 1099 or 88 special??
Probably neither...
jbrown15's Avatar jbrown15
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Quote:
Originally Posted by chalugadp View Post
I'm sure the 1099's will be awesome. If I had the dough I would just buy the jtrs 228 but don't have that kind of scratch. I will try to give you a flavour as I am sure several others will.
What if I gave you the SUPER good guy deal on mine!...lol
chalugadp's Avatar chalugadp
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Originally Posted by jbrown15 View Post
What if I gave you the SUPER good guy deal on mine!...lol
Don't tempt me like that. Would be 4-6 months before I could pay them off
jbrown15's Avatar jbrown15
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Well it's something to consider because that would probably work with my time line for building some new speakers.
chalugadp's Avatar chalugadp
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Quote:
Originally Posted by jbrown15 View Post
Well it's something to consider because that would probably work with my time line for building some new speakers.
I'll let you know at the gtg. If there my clear favorites at the event you may be able to twist my arm.

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