Definitive Owners Thread - Page 102

Originally Posted by petmic10

I finally received my Mythos ST Supertowers this weekend and let me start off
by saying they are well worth the money.

These speakers sound incredible, and imho they sound just as good as the
7002's, if not better. Don't be fooled by their slim and sleek design because
at 70lbs each they can be a handful to move around. The build quality is
superb and the granite base adds a nice touch of class.

Def. Tech. claims a break in period of 40 to 60 hours of normal playing to
reach full performance capability but they sounded extraordinary right out
of the box.

Most of my listening is 5.1 home theater, so I had to hear how these
babies handled Dolby True HD from the The Matrix. The two ST's were
mated with an Infinity TSS4000 center and two matching Infinity surrounds
and an SVS 20-39pci sub.

The Infinity's had a hard time keeping up with ST's, so Mythos all around
would probably be a better match but it sounded terrific nonetheless.

I am patiently waiting for the Mythos Ten center speaker to be released which
is supposed to be a perfect match for the ST's. and at least match the front
soundstage.

I picked these Mythos ST's up from Adz523(Next Level Audio & Video) from this forum who is a
Def. Tech. dealer in the New York area and who saved me a pretty penny also.
I want to thank him for giving me a tour of his theater room and showing me
a demo which was very impressive. The Def. Tech. Trinity sub he was using
in his room was amazing it was one of the best subs I have ever heard, deep
and powerful.

Originally Posted by stevec325

No piano... but, my accoustic guitar sits on a stand about 10' away from my sub. If I'm "shaking the house" with SW output, during the quiet passages, I can hear the harmonic vibration from the guitar strings.

I'd think that placing a sub under the piano would be a bad idea.

Originally Posted by Gordon1080p

Agreed. You said in an earlier post to take the manufacturers specs with a huge grain of salt. This 'guide' falls into the same category.

Gordon

Originally Posted by Adz523

The Trinity is the best $3,000 (list price) and under subwoofer I've ever had in my home theater showroom. In fact, in my room, it has, without a doubt, more percussive slam than my Velodyne DD18 which costs 66% more, and that's a huge statement.

Originally Posted by bakpakva

I agree completely! There are may be many things in your room that resonate at their natural frequency. A good way to test is with one of the buzz and rattle tests available. Set your sub at normal listening levels and play the test. I had to go back and either move, isolate, or cover a lot of things in my theater to stop the vibrations. Some of the things I would never have thought of, like my popcorn machine doors! Any stringed instrument would definitely vibrate with a sub in the room.

Originally Posted by otk

can i have some popcorn?


how's that new 3000 working out? you got it all tweeked out yet?

Originally posted by bslep:
Petmic10: Where did you hear that Def Tech was releasing a Mythos 10 Center channel and, if you know, when is the release date? I also recently purchased the ST Towers and complimented them with a Trinity sub. A matching center channel would be ideal.

Originally Posted by wldchld22

i do i only worry because i wouldn't know what to do with the extra 350 since they come in pairs. the next thing i do want to do is upgrade the center if that mythos center is in the works.

Originally Posted by LowellG

Petmic10 can give you his response, but I talked to a Def Tech rep at my local store in San Antonio about 2-months ago. He said the Mythos 10 was going to be introduced at CEDIA.

Originally Posted by otk

and i want 4 of them

i think my theater room need bracing just like the insides of a good subwoofer, LOL

Originally posted by wldchld22:
hey what do you guys think about me upgrading my procenter1000 with GASP not another 350 but a pro monitor 1000 bookshelf. if you guys saw my setup you saw i had the height. or sould i go with a gem xl standing tall in the middle? think any of those would do better center duties?

i can't get teh procenter 2000 around here and the other centers won't sit on my shelf underneath my tv. plus with a pair of 350's i have an extra speaker i don't know what to do with.

Originally Posted by LowellG

I think you have a couple of options. I have owned the 350s and ran them in phantom center mode. They image so well I really don't think you would notice missing the center speaker considering the distance between the 350s. I think you would agree the 3 way sound of the 350s are superior to the PC1000 and probably even a PC2000. I you must have a center, I would go with another 350.

Again I want to emphasize giving them a try in phantom center considering the L/R fronts distance from each other. I ran mine on the side of my 50" TV about 5' apart and they sounded great. I upgraded to a pair of used BP2006s and bought a CLR2300. I thought it was an upgrade, but the 2, 350s in phantom center were much better than the 2300. I now have the 2006s about 8'-9' apart so the 2300 ties them together better, but I do miss the clearer dialoge from the 350s. Just give it a try and toe them in very slightly towards the center of the listening position. I bet you won't miss the PC1000.

Originally Posted by Adz523

I'd love to lay down 4 of them positioned on their back against the back wall of a dedicated home theater (one from each corner and two centered), handling just the LFE track. Put in War of the Worlds (WOTW), and run.

Originally Posted by otk

i see you're bass crazy like me

the problem with laying them down would be you'd be laying them down on 2 of their passive radiators and i don't think you could lay them on their backs because of the wires and controls. the trinity's have 2 passive radiators on each side and 2 forward firing active drivers

the way i would like to do it is to have 2 on the front left and 2 on the front right and have them stacked on top of each other

when you stack 2 subwoofers, the 2 subwoofers couple together and give you about 6 db more output

when you put one sub on each side of the room in a "stereo" sub type set-up, you're not getting much extra output but you are getting a much smoother, even frequency response throughout the room and if placed right, can help to eliminate peaks and dips in the frequency curve

when you use 2 subs on each side, you're getting your increased output and frequency smoothness, you're getting your cake and eating it too

if you want even more output, put 4 subs on each side and so on

i currently have 6 powerfields on my LFE channel. i'm looking to pick up 2 more so that i can have 4 on each side of the room, 2 stacked on top of 2 forward firing from the front of the room, 4 on the left and 4 on the right

however, since my subs are now a decade old, i'm toying with the idea of getting all new ones. subwoofer technology has come a long way in the last 10 years and subs are now going louder and lower than they used to and movie soundtracks seem to keep going lower and lower on the LFE channel

so, i might keep what i got and add 2 more, i might get all new subs (right now i'm looking at the trinity, the JL fathoms, and a few others) or, i might go DIY and have something really sick built

if i have something sick built, it will be something along the lines of using 16 TC sounds LMS-5400's in sealed boxes or 8 of them with 16 passive radiators

i'm still up in the air about sealed vs. ported. everything i ever read about subwoofers (10 years ago) said that sealed enclosures give you the best possible sound quality but now i've been hearing that there's no difference and that going with a sealed box, you're wasting output and extension. i don't know, i'm still researching it all and there seem to be strong opinions from both camps

Originally Posted by wldchld22

hey what do you guys think about me upgrading my procenter1000 with GASP not another 350 but a pro monitor 1000 bookshelf. if you guys saw my setup you saw i had the height. or sould i go with a gem xl standing tall in the middle? think any of those would do better center duties?

i can't get teh procenter 2000 around here and the other centers won't sit on my shelf underneath my tv. plus with a pair of 350's i have an extra speaker i don't know what to do with.

Originally Posted by gte747e

Along the front, I am going to go with 2 350's as my left and right, and a ProMon 2000 as my center. I have the room for a large center. Would another 350 be a better center than the ProCenter2000? I see that the MSRP is $100 less.

Originally Posted by otk

from everything i've read, having 3 identical vertical speakers across the front is the best for the ultimate front sound stage

when you go out to the movies, there are 3 identical loudspeakers behind a perforated screen

it give you the ultimate experience in timbre matching

when sound moves from one speaker to the next, the blending is seamless

Originally Posted by gte747e

And in this case, for less money, correct? The 350 is cheaper than the ProCenter 2000.

Originally Posted by Adz523

Actually I'm fine with one Trinity handling LFE. I meant if you were going to go with four, I would love to hear them all laying on their side in the back of a room. You actually can lay the Trinity on its side, woofer facing out towards the room. It requires some custom work (i.e., girders) to slightly raise the passive radiator off the floor (it only needs a couple of inches of clearance), but its doable, and could sound fantastic.

In my Def Tech room, I run my 7000SC front soundstage as full range/no LFE, with the Trinity handling the LFE in the back corner. In my Triad Room, I run my InRoom Platinums as small/xover of 80Hz with stereo left and right Platinum 18" subwoofers to make the front soundstage full range (again with the Trinity handling the LFE).

Remember most technology advances in speakers/subwoofers are simply trying to get around Hoffman's Iron Law which states that one can choose only two of three variables in a speaker design: 1. efficiency, 2. box size, and 3. playing very low; Getting around it by using passive Radiators and other ported designs which still result in increased distortion and accuracy.

(Copied from web article). Hoffman's Iron Law states that the efficiency of a woofer system is directly proportional to its cabinet volume and the cube of its cutoff frequency (the lowest frequency it can usefully reproduce). The obvious implication is that to reduce the cutoff frequency by a factor of two, e.g. from 40 Hz to 20 Hz, while still retaining the same system efficiency, you need to increase the enclosure volume by 2 cubed, or 8 times! In other words, to reproduce ever lower frequencies at the same output level you need an extremely large box!

However, box size isn't the only variable. You can continue to use a small box by accepting a much lower efficiency. In order to retain the same sound pressure level (SPL, meaured in dB's), though, this requires both a very large amplifier and a driver that can handle a lot of power and move a lot of air (requiring high excursions). Furthermore, it must be able to do so with minimal distortion.

So, low-frequency capability, box size, and efficiency form the three key aspects of system design. To increase any of the three, you have to give up something from the other two, with box size being the most sensitive. The often unpopular bottom line is therefore to plan on using the largest box you can comfortably live with. This partially explains the popularity of subwoofers, which can be both large and hidden from view, and often include their own built-in high power amplifier.

Originally Posted by MatthewB.

Wow again, that is so strange. Oh well. Anyone know why when I first click this thread it tells me there are only 51 pages but when I post a response it says that there are over 100 pages on this thread.