Hey guys...we need a little rallying here... - Page 10 - AVS Forum
Forum Jump: 
 291Likes
Reply
 
Thread Tools
post #271 of 11435 Old 12-02-2010, 06:30 AM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
Quote:
Originally Posted by 3AMRecords View Post
*Gets up, puts down popcorn and puts on fire suit.*

So, all this back and forth about xover points and beaming and this driver can't go past 1.3k or 1.5k or whatnot, this CD/WG combo does not sound good below 1.6k, or 1.3k or whatever...

This might be a dumb idea, but why not then make it a 3 way design, xover the 15 lower and the CD/WG higher and put in something nice to handle the mids?

I Max
not a dumb idea at all but it requires more XOs which is just more measurement/simulation hassles. On the active side more amps, more XO channels.

There is something too keeping the 400Hz to 2KHz (or 3KHz) on one driver. Many designers talk about XOs within that region causing SQ issues.

Just another one of those compromising choices in audio.

It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
Sponsored Links
Advertisement
 
post #272 of 11435 Old 12-02-2010, 06:45 AM
AVS Special Member
 
steve71's Avatar
 
Join Date: Nov 2006
Posts: 1,202
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Liked: 14
The potential problem with a three way is the C2C spacing (lobbing issues), between the mid and HF waveguides/horns.
steve71 is offline  
post #273 of 11435 Old 12-02-2010, 06:51 AM
AVS Special Member
 
Erich H's Avatar
 
Join Date: Dec 2007
Location: Cincinnati OH
Posts: 5,452
Mentioned: 3 Post(s)
Tagged: 1 Thread(s)
Quoted: 358 Post(s)
Liked: 655
The speakers I'm building now have the XD120 waveguide crossed to a 10" Eminence, and that's sitting on a 15" sub driver that only gets the LFE up to about 120hz. I'll be starting a build thread shrortly.

If most people will be running some type of subwoofer with these (I'm sure they will), then I'm fine using 10", or 12" drivers for the woofers instead of going up to a 15".

My guess is that there are plenty setups using 10's or 12's that can easily do reference levels and handle the higher crossovers, but no 15's are going to dig deep enough to satisfy the bass hungry folks here.

So why use 15's at all if they can't be crossed up high enough and still have a need for a subwoofer? Just curious.
Erich H is online now  
post #274 of 11435 Old 12-02-2010, 07:03 AM
AVS Special Member
 
A9X-308's Avatar
 
Join Date: Mar 2008
Location: Australia; now run by adults.
Posts: 5,411
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 153 Post(s)
Liked: 111
Quote:
Originally Posted by 3AMRecords View Post

This might be a dumb idea, but why not then make it a 3 way design, xover the 15 lower and the CD/WG higher and put in something nice to handle the mids?

That's what I'm doing. Never been a 2 way fan in general. Active via DCX is more than most want to spend though or it's too hard for most to do passive.
A9X-308 is offline  
post #275 of 11435 Old 12-02-2010, 07:03 AM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
Quote:


So why use 15's at all if they can't be crossed up high enough and still have a need for a subwoofer? Just curious.


If used with a subwoofer then there isnt a lot of reasons to go with a 15" woofer unless its a superior choice over the 12" or 10" for the same frequency range. Example, the TD15M is a better driver then the TD12M played from 80Hz to 1KHz based on the specs and measurements.

Really there isnt a blanket statement for using one size over another. It depends on the drivers you have available in a certain budget range.

Knowing specs and measurements about a lot of drivers helps with these decisions. Zilch, Brandon and a few others have done amazing work in measuring many choices.

It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
post #276 of 11435 Old 12-02-2010, 07:04 AM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
Quote:
Originally Posted by A9X-308 View Post

That's what I'm doing. Never been a 2 way fan in general. Active via DCX is more than most want to spend though or it's too hard for most to do passive.

Is this a new project or you did it already?

It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
post #277 of 11435 Old 12-02-2010, 07:09 AM
AVS Special Member
 
A9X-308's Avatar
 
Join Date: Mar 2008
Location: Australia; now run by adults.
Posts: 5,411
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 153 Post(s)
Liked: 111
Quote:
Originally Posted by penngray View Post

Is this a new project or you did it already?

I built a slap together proto with the 2225, 2123 and Ewave/DE250 ages ago and am slowly assembling 4 units of the same now with the TD10M in the middle instead.
A9X-308 is offline  
post #278 of 11435 Old 12-02-2010, 07:10 AM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
Thanks, Im adding AV15X bass bins to my mains, using the TD12M as a mid range driver (300Hz to 1200Hz).

It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
post #279 of 11435 Old 12-02-2010, 07:17 AM
AVS Special Member
 
A9X-308's Avatar
 
Join Date: Mar 2008
Location: Australia; now run by adults.
Posts: 5,411
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 153 Post(s)
Liked: 111
Mine are for my surrounds, with 300hz and 1k7 xovers, that's what they were in the protos so the small Ewave lines up well.
A9X-308 is offline  
post #280 of 11435 Old 12-02-2010, 08:01 AM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
Another option

http://archives.telex.com/archives/E...HR90%20EDS.pdf

btw, I got this from this current thread on DIYaudio.com
http://www.diyaudio.com/forums/multi...ml#post2384732

Great thread for showing waveguide options.

It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
post #281 of 11435 Old 12-02-2010, 08:17 AM
Advanced Member
 
ZilchLab's Avatar
 
Join Date: May 2009
Location: Berkeley, CA
Posts: 944
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Quote:
Originally Posted by Antripodean View Post

While we are throwing ideas in the pot, which means deviating from the design of an optimal waveguide, why aren't we designing with an MTM in mind? That gives us greater flexibility on the XO value and improved sensitivity with the woofers. Just an idea...

Building a full-spectrum 2-way is tough duty, especially if one expects reference-level SPL, though it can be done with modern technology for the price of leading-edge components. The better answer is to assume subs(s) and design killer mid/high boxes to mate with them, as Erich H suggests, above.

There's nothing available "Big Box" that can approach this level of performance, as Geddes et al. have demonstrated....

.
....Crank up the SIGNAL ... cut back the noise....
ZilchLab is offline  
post #282 of 11435 Old 12-02-2010, 10:57 AM
AVS Special Member
 
DS-21's Avatar
 
Join Date: Jun 2005
Posts: 3,513
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 177 Post(s)
Liked: 219
Quote:
Originally Posted by noah katz View Post

Those look great!

But looking at the pdf brochures, they have really high XO's - 1.8 kHz for the 15" and 2.4 kHz for the 12".

So either the WG's only hold pattern control down to those freq, or they opted for higher power handling for the CD at the cost of pattern matching between the drivers.

Look at the prices, though. I suspect they're using a really cheap element inside the WG. Maybe even a piezo. Not exactly the B&C/BMS/Beyma compression drivers that most of us want to use.

Quote:
Originally Posted by 3AMRecords View Post

This might be a dumb idea, but why not then make it a 3 way design, xover the 15 lower and the CD/WG higher and put in something nice to handle the mids?

Complexity for one thing. Getting one driver handoff seamless is hard enough! Also, with modern stuff there's just no need. Plenty of 10-15" woofers that can go up to 1kHz or a bit higher cleanly, and plenty of compression drivers that, properly loaded, can take over from there and go high enough for human ears.

Quote:
Originally Posted by ZilchLab View Post

Building a full-spectrum 2-way is tough duty, especially if one expects reference-level SPL, though it can be done with modern technology for the price of leading-edge components. The better answer is to assume subs(s) and design killer mid/high boxes to mate with them, as Erich H suggests, above.

I think that's a better answer regardless of component cost, though. Unless the room is auditorium-sized, smooth upper bass just ain't gonna happen from three speakers placed appropriately for LCR use.

I'm surprised that the prefab speaker industry hasn't begun to catch up yet. Even assuming that nasty compromise that is the 7" 2-way remains the de facto standard for prefab speakers, I don't get why they're not shooting for medium efficiency and 80-100Hz lower cutoffs, rather than abysmal efficiency and high-distortion ~40Hz low end.

--
"In many cases there aren’t two sides unless one side is 'reality' and the other is 'nonsense.'" - Phil Plait
Serious Audio Blog 
Multichannel music (and video) urban loft living room system 
DS-21 is offline  
post #283 of 11435 Old 12-02-2010, 10:59 AM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
Quote:


rather than abysmal efficiency and high-distortion ~40Hz low end.

Because they are somehow still stuck with the old mindset that they need to build speakers that can run on their own without subs.

Of course a main speaker still needs an F3 below 60Hz to get a smooth transition with a sub @ 80Hz.

It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
post #284 of 11435 Old 12-02-2010, 11:06 AM
Senior Member
 
LBDiver's Avatar
 
Join Date: May 2008
Posts: 436
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Penn,

Still thinking of buying those local Wharfedales to test??.

How bout these EV HP9040's, do these old designs with long narrow throats "honk" like crazy?
LBDiver is offline  
post #285 of 11435 Old 12-02-2010, 11:10 AM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
lol, too funny, have you been reading DIYaudio.com today?

Im not considering that one but Im considering some other EV horns on ebay.

As for the Wharfedales, Im going to that pawn shop to look at them tomorrow. from the pics, I believe the waveguide is only about 12" wide, its definitely smaller then the 15" woofer. Im not interested in smaller waveguides any more. 14" is the min I want these days.

It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
post #286 of 11435 Old 12-02-2010, 11:33 AM
Senior Member
 
LBDiver's Avatar
 
Join Date: May 2008
Posts: 436
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by penngray View Post

lol, too funny, have you been reading DIYaudio.com today?

Im not considering that one but Im considering some other EV horns on ebay.

As for the Wharfedales, Im going to that pawn shop to look at them tomorrow. from the pics, I believe the waveguide is only about 12" wide, its definitely smaller then the 15" woofer. Im not interested in smaller waveguides any more. 14" is the min I want these days.

Sure have.

Another guy has a pair of the smaller EV HP940 horns w/ the DH1A 2" CD's on eBay, he just sold 2 pairs of the horns alone and one set went for only $20, a week too late.

So you've decided to set a minimum size, uh oh. What pattern control frequency are you shooting for? Are we gonna see an updated avatar in a few months with some huge white acrylic tractrix horns dominating the room.
LBDiver is offline  
post #287 of 11435 Old 12-02-2010, 11:35 AM
Advanced Member
 
ZilchLab's Avatar
 
Join Date: May 2009
Location: Berkeley, CA
Posts: 944
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Quote:
Originally Posted by DS-21 View Post

I'm surprised that the prefab speaker industry hasn't begun to catch up yet. Even assuming that nasty compromise that is the 7" 2-way remains the de facto standard for prefab speakers, I don't get why they're not shooting for medium efficiency and 80-100Hz lower cutoffs, rather than abysmal efficiency and high-distortion ~40Hz low end.

They're in business to make money, and that's the dominant paradigm.

Wherever I go with DIY EconoWave, it's generally unfamiliar territory, a challenge to conventional wisdom, change perceived as a loss, and unless/until there are adopters among core membership willing to take the risk of building them, I am viewed as an interloping heretic and even pariah; there's plenty of haters out there.

HT was quick to accept E-Wave, though, largely because it meets spec like few alternative design approaches ever could, with minimal investment....

.
....Crank up the SIGNAL ... cut back the noise....
ZilchLab is offline  
post #288 of 11435 Old 12-02-2010, 11:52 AM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
Quote:
Originally Posted by LBDiver View Post

Sure have.

Another guy has a pair of the smaller EV HP940 horns w/ the DH1A 2" CD's on eBay, he just sold 2 pairs of the horns alone and one set went for only $20, a week too late.

Definitely some interesting choices on Ebay for older horns, I should start searching daily.

Quote:


So you've decided to set a minimum size, uh oh. What pattern control frequency are you shooting for? Are we gonna see an updated avatar in a few months with some huge white acrylic tractrix horns dominating the room.

I would love to get down to 600-700Hz but that has its own compromises so many pushing down to 900Hz would be okay. The 15" EOS I posted early might do 900Hz with the DE250. Geddes XOs around there with his Summas and Abbeys so there is potential.

It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
post #289 of 11435 Old 12-02-2010, 11:53 AM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
Quote:


I am viewed as an interloping heretic and even pariah; there's plenty of haters out there.

Zilch, I have always thought of you as a pioneer in the DIY horn world. Your ability to focus on core design without all the subjectivity of other factors is amazing.

It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
post #290 of 11435 Old 12-02-2010, 12:08 PM
AVS Special Member
 
coctostan's Avatar
 
Join Date: Oct 2005
Location: Indy
Posts: 1,960
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 129
Quote:
Originally Posted by ZilchLab View Post

I am viewed as an interloping heretic and even pariah

That is how you know you are doing something right. That is how my wife introduces me.
coctostan is offline  
post #291 of 11435 Old 12-02-2010, 12:09 PM
Senior Member
 
3AMRecords's Avatar
 
Join Date: Jul 2008
Location: Louisiana
Posts: 274
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Well, if we are going to keep this discussion going further I think there are a few things that need to be defined in the idea of this design research.

Most of us have settled on a 2 Way design WG/CD up top and a 15 (Or 12) on the bottom.

The next step is to agree what we want down low, lock that in place so we can start to get to work on this WG design.

Yes Penn wants a larger WG than some of the others out there, I say why not. That though, is because I have the space and now WAF to worry about.

So, Let's discuss what we want the LF driver to be. Most of us who are reading this have built some sort of sub (pure assumption) and are pretty much happy with it. So let's assume for a minute that we don't need to get super low with these things, (I know, you can burn me at the stake later). Can we still get a 15 to play nice like a 12 would? As was pointed out, it really depends on the driver and the specs as well as a whole manner of other things that we can deal with in the future like exact enclosure size sealed/ported etc.

It also seems that we should pick and stick to a CD (though the 250 seems popular) I cannot help at all on this matter as I have not heard any of them yet.

I should also add that what truly got me interested in the entire WG EWave build idea was this simple statement:

augerpro / Branon
In his thread about his Wave variant.
Quote:


The ability to play loud and clean is obviously a goal, but so is the ability to also be delicate when needed. It should be able to go from Wagner to Chemical Brothers to Diana Krall with equal ease. This became a goal as I was listening to a Led Zeppelin song that perfectly captures what this speaker is all about, No Quarter

Obviously We are not trying to mimic this design, I just wanted to point out the reason I am so interested in it is 2ch Audio. If I am going to spend the time and effort on designing/building something, I want it to be as awesome as I can possibly build.

So, lets start to iron out what we want out of this design. If that means we have to compromise something, then lets discuss it and see if we are ok with making that compromise, and then settle on a design.

/rantoff

Max

Max

Dual Dayton RSS390HF-4 15" Sonosub Build thread:
http://www.avsforum.com/avs-vb/showthread.php?t=1223658
"You mean, you um, you built those things?"
"Yep!" "Why?" *Power on* "Oh, that's why"
3AMRecords is offline  
post #292 of 11435 Old 12-02-2010, 01:16 PM
AVS Addicted Member
 
noah katz's Avatar
 
Join Date: Apr 1999
Location: Mountain View, CA USA
Posts: 20,656
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 318 Post(s)
Liked: 172
Quote:
Originally Posted by 3AMRecords View Post

So let's assume for a minute that we don't need to get super low with these things, (I know, you can burn me at the stake later). Can we still get a 15 to play nice like a 12 would?

Why even try?

If XO'd to a sub at 80 Hz, a 12" (or a 10" for that matter) has ample output, behaves better at the upper end, allows a smaller box, and is cheaper.

Noah
noah katz is offline  
post #293 of 11435 Old 12-02-2010, 03:58 PM - Thread Starter
AVS Addicted Member
 
LTD02's Avatar
 
Join Date: Oct 2003
Posts: 16,787
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 528 Post(s)
Liked: 1147
the best bang for the buck 15" driver that i have seen for this purpose (low-mid driver) is the bms 15s320 available from assistance audio for $174. flat frequency response, high sensitivity, low distortion (triple demodulating rings), no nasty breakup, 3 inch coil, medium-low q strong motor, high power handling, etc. it doesn't seem to do anything wrong.

in a 1.9 cubic foot enclosure tuned to 42hz and with a 2nd order highpass, it models just like a sealed 0.707 (with the same thx spec 2nd order highpass) above the crossover point and is only a db or so higher below the crossover point and it is down exactly 6db at the crossover point. of course that will change with placement and crossover component eq'ing, but it is a good place to start.

impedance is pretty flat around 1khz, which is about where this one should be crossed (i have not seen the off axis, so it would need to be measured to know). i think the crossover would be simple and that means cheap.

the measurement is anechoic, so it will pick up ~6db from 500hz down to 100hz in 2 pi space and perhaps more in room.

edit: bms also measures xmax conservatively. using the (hc-hg)/2+hg/4, which would be roughly the 10% distortion point, xmax would be 7mm.

http://bmsspeakers.com/cone-speaker-...-introduction/

http://bmsspeakers.com/fileadmin/bms...320_t_data.pdf



"Why even try?"

lower distortion for any given output level, higher max output. seaton uses two 12's on his theater speaker. i don't think a 15" is wasteful overkill. it will also beam a little sooner, so allows for more sound in the horn. geddes prefers his summas over all the rest. he has made that comment several times.

but, everytime it comes to a vote, the 12" will always be preferred for its smaller size, so i recognize that i am kind of posting in futility.






.

Listen. It's All Good.
LTD02 is offline  
post #294 of 11435 Old 12-02-2010, 04:05 PM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
LTD02, Im all for a 15" woofer if we can get a waveguide that has controlled directivity under 1KHz since I will never run a 15" driver above 1KHz.

12" just works easier with XOs, IMO.

It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
post #295 of 11435 Old 12-02-2010, 04:10 PM
AVS Addicted Member
 
penngray's Avatar
 
Join Date: Feb 2006
Location: Florida
Posts: 26,779
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 30
Quote:


Yes Penn wants a larger WG than some of the others out there, I say why not. That though, is because I have the space and now WAF to worry about.

3AMRecords, I have always consider all WG design big or small to be kind of anti-WAF but I just know the problems that exist with small waveguides. Look at Zilch's measurements of a similar waveguide to the one used in the Pro-10s being rant and raved about on the speaker forum. You should not use a larger driver with them if you care about measurements/accuracy and directivity and if you want sensitivity then you have a smaller driver that does not go to low and it becomes a 3-way.

Remember high sensitivity drivers have limited Xmax so you need surface area to produce lower frequencies. 6.5" and 8" high sensitivity drivers really do not go low enough to be used as the bass section.

Its just another one of those compromises to a speaker design, a person needs a high level flow chart to figure this stuff out

btw, this discussion reminds me of the initial thread I started about waveguides. One that kicked off what Brandon and I built and brought Zilch to AVS. There are lots of discussion threads on what is an optimal design but there are several camps on the topic.

To me its simple. There are enough builds to emulate from what Paul W. has done to what Augerpro has built, then there are the many, many choices Zilch offers.

No one is going to agree on the exact one build that is the best so we just have to pick the build that suits our needs the best. I only push the 15" EOS because its not offered but talked about so much as a "Man, I wish I had that" type of design. Im really not looking for a majority effort neither because I have posted already that it never happens so essentially I will try really hard to push the 15" EOS myself as much as I can. The files have been created and sent. I will continue to search for resources to get one built. Obviously the more people on board and helping the better chance we have of success but after 10 pages, there is not even a consensus of anyone else wanting the 15" EOS.

So its really the breakdown looks like this

What waveguide do you want?
1. Penngray - 15" EOS
2. unknown
3. unknown
4. unknown
5.
6.
7.


It is not "open-minded" to reject knowledge - Bob Lee
penngray is offline  
post #296 of 11435 Old 12-02-2010, 04:14 PM
Senior Member
 
3AMRecords's Avatar
 
Join Date: Jul 2008
Location: Louisiana
Posts: 274
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
Quote:
Originally Posted by penngray View Post

LTD02, Im all for a 15" woofer if we can get a waveguide that has controlled directivity under 1KHz since I will never run a 15" driver above 1KHz.

12" just works easier with XOs, IMO.

I will agree here, If we can get a 15 to play nice why not?
I know the 3015/HO/LF have been preferred lately.
I have not had a chance to compare this and the aforementioned bms 15s320 though.
So what would we gain/lose by using each?

Max

Dual Dayton RSS390HF-4 15" Sonosub Build thread:
http://www.avsforum.com/avs-vb/showthread.php?t=1223658
"You mean, you um, you built those things?"
"Yep!" "Why?" *Power on* "Oh, that's why"
3AMRecords is offline  
post #297 of 11435 Old 12-02-2010, 04:39 PM - Thread Starter
AVS Addicted Member
 
LTD02's Avatar
 
Join Date: Oct 2003
Posts: 16,787
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 528 Post(s)
Liked: 1147
What waveguide do you want?
1. Penngray - 15" EOS
2. LTD02 - 15" EOS
3. 3AMRecords - 15" EOS
4. unknown
5. unknown
6. unknown
7. unknown
8.
9.
10.

.

Listen. It's All Good.
LTD02 is offline  
post #298 of 11435 Old 12-02-2010, 04:40 PM
Senior Member
 
3AMRecords's Avatar
 
Join Date: Jul 2008
Location: Louisiana
Posts: 274
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 11
15" eos

Max

Dual Dayton RSS390HF-4 15" Sonosub Build thread:
http://www.avsforum.com/avs-vb/showthread.php?t=1223658
"You mean, you um, you built those things?"
"Yep!" "Why?" *Power on* "Oh, that's why"
3AMRecords is offline  
post #299 of 11435 Old 12-02-2010, 04:45 PM - Thread Starter
AVS Addicted Member
 
LTD02's Avatar
 
Join Date: Oct 2003
Posts: 16,787
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 528 Post(s)
Liked: 1147
typically you copy the list into your post and add your name in order to keep the list near the most recent thread, so folks don't have to go digging back to find the list.

What waveguide do you want?
1. Penngray - 15" EOS
2. LTD02 - 15" EOS
3. 3AMRecords - 15" EOS
4. unknown
5. unknown
6. unknown
7. unknown
8.
9.
10.

.

Listen. It's All Good.
LTD02 is offline  
post #300 of 11435 Old 12-02-2010, 07:19 PM
AVS Addicted Member
 
noah katz's Avatar
 
Join Date: Apr 1999
Location: Mountain View, CA USA
Posts: 20,656
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 318 Post(s)
Liked: 172
Quote:
Originally Posted by LTD02 View Post

geddes prefers his summas over all the rest. he has made that comment several times.

Yes, and he also says the Abbey gives nearly all the performance at way less cost and box size

What waveguide do you want?
1. Penngray - 15" EOS
2. LTD02 - 15" EOS
3. 3AMRecords - 15" EOS
4. Noah - 12" EOS (assuming it holds pattern control down to ~1.2 kHz or less)

Noah
noah katz is offline  
Reply DIY Speakers and Subs

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off