6.5 vs 8 vs 10 woofer

My wife say after having 6” and the 8” she like my 10” best of all. 

8" is a good. Mid-bass is a compromise so to minimize Doppler on the low end I needed 6 on each side, sealed box. Kind of blew the budget.

Then XO @ 58 Hz to 15" corner horns which is all right to 25 Hz for most music.

Then XO to the sub-sub 14’ T-line 4x15". Three of those. Flat to 4Hz. Could not measure dB. Had to estimate via Richter. Also doubles as a hair dryer. 

Couldn’t find the Hartley at the time of the build.

Full range drivers are always a complete compromise anyways where you sacrifice some aspect of the sound/characteristics to get what you want. It is actually incredibly difficult to engineer and manufacture a full range driver that really works well throughout the entire frequency range.


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Yeah I'm now firguring this  weakness of a  FR 8. Its super in the midrange,
But by itself, it does not have enough width and depth = soundstage was a  bit ~flat~~
so i pondered what can i do in the meantime while i save up some audio buget cash for the Vox 8...hummm, well lets see, I have the Thors collecting dust,,,thinking kind of liked something about the thors,,but not sure what the issue was that made me slam the Thors,,,so i figured since i have a  nice rich mids/some upper highs,,in the 8 FR,,thought i might as well disconnect the Millenium tweet ad run the other speaker cable to the Thors. 
BINGO, Soundstage returned very nicely. 
Just this moning wanted to ck what the dual W18's sounded all  alone on one channel and the other with the FR8,,,,sure enough the Excel W18 magnesius 87 db 6.5's were a  smash hit.
The lowes only go to 40hz. But what is so unique about this EXCEL W18 is the fq's between say 100-2000.
Here is where this driver really shines.
This super critcal range is voiced with no stress, no faatigue, just pure music.
I could not live without this W18 Excel. It simply must be in my system/ 
Now i note the Vox 8 is really FULL range,  that driver rocks, I know after countless YT vid listening sessions. 
How will the Vox8 intergrate with the dual W18's, Remains to be seen/= heard.

If the Vox seems a bit flat, I have no choice but to interfrate the dual W18's.
Will not mploya  compression horn tweet  either Davidlouis or 18 Sound. 
The Vox 8 has stunning highs. 
So taht saves me $400/DavidLouis or $650/18 Sound. 

Its good i did not dump the Thors for asking $800,  that would have been a gigantic mistake.
The new xovers, the cabinets, the dual W18's for $800?? I must  have lost my mind.
, , The tweeters will be dumped on Ebay, brand new for some change/ going auction style.
As per Richard Gray, **I hate dome tweets*. 
The dual W18's, really voice gorgeous in the upper bass, low mids. 
 Those W18's I could not live w/o.
The LII fast 8 FR is worth only what you pay for it.
The bass is a  bit thin and  mids  a bit too warm = muddy.  All my system is geared to be clear/ clean,  that is i attempt to eliminate all *warm*. 

 The LII Fast 8  will  have to do til I get the Vox8. 

hi-eff 1.5" tweeter (seas t35 are 96 db)


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When i order a new pair of Millenium, instead the far superior dome tweet is this Exotic T35 you mentioned.
Its 94db eff.
No doubt would have blown away the Millenium and thus , may have been completely satisfied and not looked any further into going FR.
But as it is, FR is on my agenda.
The T35's voice coil is only 1.3 inch.
Thats just too small to voice large full orchestra.
Just can not  deliver the wide sound stage that i am looking for.
But indeed, the T35 Exotic might just be the exception to Richard's opinion  about the weakness of all dome tweets. 
But then the T35 is going up against the new compression horn tweets with 100++ sens. 
I'm done with midrange tweets (1500-20k) 
The new FR voices midrange with wider/deeper sound stage. A fullness  with fidelity, purity. Accuracy.
Dome tweets squeeze the complex passages thougha  minisclue 1-1.5 inch exit chamber.  = Nice try, no cigar. 

I was with you in the wideband hi-eff thread, but this 10" theory makes little sense.



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Not sure what topic i posted, that i am now of the opinion, dual 6.5's  superior toa  single 8 or 10.
The Seas Excel W18 are so well behaved in 40hz- 1500hz. that  really makes this a  full rich voicing in this critical register. 
On heavy complex  passages of 50hz/lower as in some Schnittke symphonies when all hell breaks lose, the W18's do get a  bit befuddled. 8 or 10 is better in this short passages.
But its not very often this attack of  50hz/lower makes its appearance in such an onslaught violence.
The W18 are not cheap, But as with anything in speakers, you get what you pay for. If you want the best gotta pay.
The newest Excel line is the Graphene, add  another 25%. Beasts!
So yeah dual Excel W18;'s in my opinion delivers the fullest bass of any design in the 40+ hz- say through  2000.  vs a   single bass woofer, 
Conside, how many 20-40 hz's are in your music? 
Well jazz, maybe,,,, but orchestra, not enough in that range to be noticed that its missing. 
The Excel W18's exhibit a   purity in the lower mid's  which is just laid-back, , natural, zero distortion/fatigue.
They are 87db, so only used  as a  ~filler~, adding  a ~subtle~wider/deeper soundstage in those fq's = 40hz-2000hz. when joined with a  FR. Preferably a  6.5 FR.
 But since Vox offers the 6 inch FR same price as 8, I'll opt for the 8. 

OK to recap,
A single 6.5 FR will not  offer ~slam~ in the 40hz-60hz. You will need some bass configure. 
A single 8 FR may offer some deeper bass in the 30hz-50hz, but not ~deep/rick/thick~ for some  some critical recordings. 
Bottom line: Dual 6.5's MM (skip the tweet) is the ideal bass configure for backing up a  single FR 6.5 or 8. 
A good quality FR does not require adding a  compression tweet. 
I'm kind of  joining up ~best of both worlds~ some depth in  the 40-60hz_ from the dual 6.5 low eff 87 db midbass, and then the critcal midrange of 100hz-5k with the high eff  FR. 
This configure may not work with the Vox, can't say til i acutally set it up. 
But with a  lower budget priced FR8  requires adding some sort of bass configure.