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dvh99
Joined: 25 Dec 2009
Posts: 2158
Location: nederland
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| Posted: Sun Jan 30, 2011 3:22 am Post subject: |
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what is the lamp life of this projector, i see it says in the brochure 500hrs at 90% brightness.
these 7000 watt xenon bulbs are very expensive i would think.
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1 answer always poses multiple questions.
marquee 9500ultra HD10L moome hdmi1.3 v3+ some mods.
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Sun Jan 30, 2011 4:39 am Post subject: |
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| garyfritz wrote: | | You don't hear that. You FEEL it. |
I understand that Gary but do you FEEL or think it's worth worth 20 grand ? Let alone how many sound tracks really contain any useful information below 20hz ?
This reminds me of infrasonics and some animals ability to sense an impending earthquake .....
http://en.wikipedia.org/wiki/Infrasound
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achase
Joined: 03 Sep 2007
Posts: 113
Location: West Hartford
TV/Projector: Christie 4k DCI
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| Posted: Sun Jan 30, 2011 6:57 am Post subject: |
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| Spanky Ham wrote: | Nice job!
I agree about the sound. I get the appeal of Dbox, but I don't like it. Of course, I think the same thing about 3D. I mentioned this before and I know you have no interest, but the only thing I would have added was the Thigpen rotary sub to cover 0hz to 20hz. |
Around 1980 "Sensurround" was the new, big thing. I went out and bought a DBX model 100 subharmonic synthesizer to add to my HT. I then got a Velodyne 18" servo-powered sub-woofer system that looked like a cocktail table. Was it fun? Yes. Was it exciting? Yes...for about two times. After that, my guests started yelling to "turn that thing down". Just as the Sensurround appeal did not last, neither would a Thigpen, I suspect . People (including myself) quickly develop "bass overload". After the first one or two explosions, the "punch in the gut" effect gets annoying really fast. I'm sure the aspirin manufacturers loved those systems. If you've been to the "4-D" movies at Disney World, it's fun getting sprayed (once) in your seat. How many people would enjoy it happening 50 times an hour?
My approach has been to reach for natural smoothness. Like surround channels, you normally want them to be just that: surround augmentation channels. If they jump out at you so much that you sense the surround speakers are making the sound, then the system design is wrong, IMHO. I absolutely know the bass capability of my system is there. Pop a DTS Master Audio demo disc in, and there's all the bass you could ever want - and that's with the bass amp at about 1/4 the output setting. The fact that the system is capable of such massive bass on a demo disc (remember, there are 10 - 15" sub-woofers placed in exponential folded horns in the system), yet not on a typical film, tells me the program material does not call for the system's full capabilities as it is. Why deviate from what should be there?
I'm the type of guy who likes my popcorn just as it comes from the popper - no flavored salts, coloring, etc.
| Description: |
| "DBX BOOMBOX- SUB HARMONIC SYNTHESIZER. Here's a great old piece. All original, with wood sides. It's a Model 100, with control for low frequency boost, sub-harmonic level & a bypass. On back you have 2 RCA in's, 2 RCA out's, 2 optional to L.F. a |
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Last edited by achase on Mon Jan 31, 2011 6:41 am; edited 4 times in total
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achase
Joined: 03 Sep 2007
Posts: 113
Location: West Hartford
TV/Projector: Christie 4k DCI
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| Posted: Sun Jan 30, 2011 7:20 am Post subject: Re: Reflections on my theater ‘project’ |
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| kal wrote: |
| Quote: | | I am searching for an external “black box” / IR emitter driver that will allow the matte screen to handle 3D with active glasses. |
We've partnered with a company and have boxes coming out in the next few months that will offer 3D on any display... stay tuned to our newsletter for more information. The 3D-Gamer is the first in the line. More to follow...
Kal |
Kal, I can't tell you how happy hearing that news made me! I eagerly awaited the 3-D adapter for my Mits LaserVue, but when I actually viewed 3-D program material on a 65" screen, it was nothing like the 3-D IMAX presentations I've fallen in love with. With my HT, I've got the screen size to fill my peripheral vision, so 3-D should be very "IMAX-like". Anything other than a matte screen would not work in my theater, however, so active glasses is the only way I can go.
I can't wait!
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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Sun Jan 30, 2011 11:06 pm Post subject: |
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Since you guys are calling me out, I will respond. Arnold it is your thread and I don't want to thread crap, but I don't believe the Rotary is a gimmick. More than a few thought it really added to the HT experience. Here are some quotes from a demo a couple of years ago:
| Mark Seaton wrote: |
I whole heartedly agree that there is no presently available technology that can deliver the complete VLF performance that the Thigpen rotary subwoofer can. Even so, the experience this weekend should remove all doubt that sub 20Hz performance is valuable. To suggest that the gains come in an all or nothing increment seems presumptuous. |
| Mark Seaton wrote: |
By all means, Bruce's device works. As I stated to a few there, and to those who are back in the midwest, the experience was very much "more" of the difference observed in systems where I've measured significant LF coupling with response below 12Hz in-room. Actually experiencing all of the 12Hz, sustained component in SpiderMan2 (superbit/DTS) was quite an experience. Having the spectrum analyzer running allowed us to clearly see what we were experiencing.
I guess I've experienced a lot more of the sub 20Hz range than most, and expect a lot. I knew the experience would really pull together with the proper intensity of the main subwoofer range. I believe after we brought the level up to -8dB to -6dB Bruce brought the VLF level back down by 6-10dB which was more in line with the main subwoofer range. Basically the addition of the Thigpen VLF device at the higher levels gave the experience I usually am after when optimizing a system, while adding a visceral impact, scale, and emotion rollercoaster to the scenes that are usually only hinted at in systems that extend to the 10-14Hz range with much less headroom.
The headroom provided clearly confirmed what I've thought and hoped that such capability would add to a system. I am curious to compare multiples of some things I'm working on in moderate size rooms, where I hope we can achieve a good likeness to what we experienced. It is also was great to confirm that I'm not nuts (well that's debatable) for wanting to go after the extremely low extension in-room.
It was a pleasure to meet so many who I've previously only exchanged with here on AVS, especially Bruce Thigpen. |
| Morbius wrote: |
For me the kicker was when we played "Master and Commander" at the increased
volume. There's one part where you watch the adversary ship, the Archeron;
fire a canon right at you.
One summer while attending graduate school in Boston/Cambridge; I attended the
Boston Pops playing on the Esplanade on July 4. The program traditionally ends
with the playing of the 1812 Overture. The sounds of the canons in the
1812 Overture are provided by howitzers stationed on the bank of the Charles River
and fired by the Massachusetts National Guard. Earlier in the day, I was right by
the howitzers when they test fired them.
The firing of the Archeron's canon was very much like how I recalled the feeling of
being near real howitzers going off. This wave of pressure just hits you.
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| Dizzman wrote: |
It was tremendously impressive.
THe kicker for me was the clip from Hitchhikers guide to the galaxy when the vogon destructor fleet is announcing to earth waht is going on and then blows up earth. (I might add that they blew it up just moments before the answer to the Ultimate Question of Life, the Universe, and Everything was restated)
With the XS (no slouch of a sub) it sounded great.
With the fan, i was reaching for my towel. From the vogons voice, to the explosion itself... it was outstanding.
And to agree with Michael... it was not overpowering. (in the room... THe dead moles may not agree with outsude the room)
THe only reason we knew that air was moving was due to the fact that the doorway to the outdoors was open and they had built a "corridor" for the air that was filled with insulation to get rid of the fan noise. ANd sometimes... THat insulation was shaking like a mother.
I said to a few at the end that if you installed this thing, you would have to tie some streamers to the vent to prove it was working if they did not beleive you.
FOr me, i would far rather dump money on this sucker than many other items that only provide mimal results at best.
THis was Measurable, quantifiable, defineable and freakin cool. not overpowering in the least. It allowed a greater emotional involvement. |
| Michael Grant wrote: |
Two things in particular surprised me about the demo.
First of all, we didn't actually have the volume up that high, and yet the effect was very satisfying. Were it not for the potential installation difficulties this thing presents (it basically requires an infinite baffle), it would be a very wife-friendly device---in that you still get the satisfying bass without having to crank the volume as much. It seems that going deeper reduces the need to go louder. (There's a joke in there somewhere.)
The second surprise is a bit more difficult to describe. Yes, OB is right, this thing is capable of shaking the room, or even the whole house. So in one sense it's a powerful piece of equipment. And it goes deep: without the sub, Tzucc's system can hit about 18-20Hz comfortable; with it, it can go all the way to DC.
But given that, I was surprised by the fact that the addition of the sub didn't add inappropriate boominess: it refined the sound, and didn't dominate it. We did some A/B testing with the sub in place, and without it. With the sub in place, explosions, collisions, etc. were not louder, rather they were fuller, more impactful. It is hard to describe, except that after hearing the content we were missing, we were loathe to do without it.
I would have liked to have heard some music through the sub, but unfortunately we could not find any surround music that could exercise it; and the two-channel system was not piped through it. In terms of bass extension alone it could be a fine addition to two-channel playback; however, the added crossover needs and the slight fan noise might turn off some audiophiles. (The fan noise issue is likely rectifiable to a large extent, and is a non-issue for home theater at nominal volumes.) But at the very least, if someone had this in their system anyway, they could turn it on for material that really exercises that frequency range (pipe organ, for example) and turn it off for the rest.
I am very interested in this piece, without a doubt. I just wish I could figure out how to integrate it into my room design. I am, alas, not sure that I can. I do think that its baffle requirements pose a significant challenge for many installations, though anyone with the opportunity to build a new room can always plan for this. I for one would be willing to trade efficiency for more isolation. But hey, if it can't be done, it can't be done. |
http://archive2.avsforum.com/avs-vb/showthread.php?t=651499&page=10&pp=30&highlight=thigpen
http://bassment.wordpress.com/
I might add that Mark Seaton and Dizzman are in the industry. Curt has met Dizzman and I don't believe he would recommend anything that wasn't worthwhile. When I get a chance, I am going to demo one that Cineramax has installed. Unfortunately, he is a Dbox fanatic and 3D fanatic. I guess those gimmicks kind of go hand in hand.
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Mon Jan 31, 2011 12:44 am Post subject: Re: Reflections on my theater ‘project’ |
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| kal wrote: | | achase wrote: | | Yes, this all comes at a cost: a minimum of an hour warm-up, a HUGE footprint, three-phase power input, and more than a dozen (loud) cooling fans. But it’s all worth it. Like a fine dinner that needs hours of preparation, the results just can’t be matched a ‘microwave’ meal. |
Sounds a lot like CRT/ 
| Quote: | | I am searching for an external “black box” / IR emitter driver that will allow the matte screen to handle 3D with active glasses. |
We've partnered with a company and have boxes coming out in the next few months that will offer 3D on any display... stay tuned to our newsletter for more information. The 3D-Gamer is the first in the line. More to follow...
Enjoy your setup Arnold! There's nothing like sitting back in your own Home Theater that you had your hand in in designing with a big smile on your face! You could have easily just 'signed a cheque' to have it done but you're obviously passionate about HT and intimately involved... fantastic to see!
| Quote: | | In closing, this part of the house was responsible for 90% or more of the aggravation, delays, and problems of the entire house project. But when I’m sitting there, it was all worth it… |
90% of the aggravation but it'll give you likely 90%+ of the pleasure too! A house is just a frame for a home theater.
Kal |
Maybe kal can get you a unit for testing.... Arnold what is your maximum refresh rate ?
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achase
Joined: 03 Sep 2007
Posts: 113
Location: West Hartford
TV/Projector: Christie 4k DCI
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| Posted: Mon Jan 31, 2011 1:12 am Post subject: |
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| Tom.W wrote: | | Arnold you mentioned 3D and I was wondering what your maximum refresh rate is ? |
Sorry, I forgot to answer this earlier. It's 120 Hz.
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Clarence
Joined: 08 Mar 2006
Posts: 3827
Location: Smith Mtn Lake, VA
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| Posted: Mon Jan 31, 2011 4:06 am Post subject: |
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OT...
A group of guys I work with went skiing last week... enjoying CT's snowiest month in history. We were driving back from Ski Sundown ( http://skisundown.com )... I looked out the window and recognized your driveway. Great little ski slope... we had a blast night skiing.
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achase
Joined: 03 Sep 2007
Posts: 113
Location: West Hartford
TV/Projector: Christie 4k DCI
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| Posted: Mon Jan 31, 2011 6:49 am Post subject: |
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I think differing points of view are always useful to hear. I asked John Allen to give us some input, and he responded:
| Quote: | I would tell the story of a well known subwoofer maker who brought four of his quad 18 inch sub cabinets to a Boston Audio Society meeting. They were delivering 110 dB at 18 Hz in the room and there was no sound that one could hear. I did have the sense that there was something going on, but couldn't tell what. We could carry on normal conversations because there was no audible sound. The only way I knew that the speakers were in fact doing anything was to go over to the side wall and place my hand on it to feel some vibration.
If a sound system can deliver an honest 40 Hz at true program levels, and ours can do this with ease, the audience will experience very deep real bass. All the theatre sound systems including HPS-4000 turn on the low cut filters either in the amplifiers or the active crossovers. These filters are 2 to 3 dB down at 30 Hz. This is done for one very good reason: to protect the woofers. It's part of the SMPTE standard. Subwoofers are designed to go as low as 25 Hz. Our ears quit at about 27 Hz. Delivering these low frequencies at levels loud enough to be heard by humans and, more importantly, loud enough to be in balance with the rest of the program material is still beyond the capabilities of most sound systems. HPS-4000 systems are good well into the 30's and even the high 20's, depending on the installation, but when I play the organ recording with a solid 25 Hz note that is as loud as the 30 HZ sound, I don't hear it very much because the organ doesn't play those frequencies loud enough.
Your system has a total low frequency radiating area of 51.25 square feet, not counting the surrounds, or about six times more than typical cinema systems. It has the acoustic output of 797.5 acoustic watts or about 11.39 symphony orchestras, not counting additional acoustic power realized by mutual coupling of the subwoofer cabinets.
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BTW, I was mistaken in my 15" subwoofer count. John pointed out that each enclosure has only one driver, and there are ten subwoofer cabinets in total. I corrected my earlier post already.
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Wed Feb 02, 2011 12:27 am Post subject: |
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Oh great now we have something else to worry about. Now not only do I have to find speakers that are pleasing to look at, now they have to sound good when you can't feel them and feel good when you can't hear them 
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Wed Feb 02, 2011 7:50 pm Post subject: |
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Arnold have you checked out the new Oppo BDP 93 blu ray player yet ? Got one a month ago but just got it installed... Nice player though ! 
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Mon Feb 14, 2011 11:24 pm Post subject: |
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Anyone else here starting to feel like last years prom date?
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Sun Apr 10, 2011 4:52 am Post subject: |
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Arnold have you had any luck with 3D in the new HT ?
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sun Apr 10, 2011 3:52 pm Post subject: |
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I think the lamps are on but nobodys home
_________________
Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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garyfritz
Joined: 08 Apr 2006
Posts: 12088
Location: Fort Collins, CO
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| Posted: Sun Apr 10, 2011 4:34 pm Post subject: |
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Maybe he's too busy watching movies in his theater to write about it!
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Tue May 17, 2011 9:41 pm Post subject: Re: Reflections on my theater ‘project’ |
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| achase wrote: | | kal wrote: |
| Quote: | | I am searching for an external “black box” / IR emitter driver that will allow the matte screen to handle 3D with active glasses. |
We've partnered with a company and have boxes coming out in the next few months that will offer 3D on any display... stay tuned to our newsletter for more information. The 3D-Gamer is the first in the line. More to follow...
Kal |
Kal, I can't tell you how happy hearing that news made me! I eagerly awaited the 3-D adapter for my Mits LaserVue, but when I actually viewed 3-D program material on a 65" screen, it was nothing like the 3-D IMAX presentations I've fallen in love with. With my HT, I've got the screen size to fill my peripheral vision, so 3-D should be very "IMAX-like". Anything other than a matte screen would not work in my theater, however, so active glasses is the only way I can go.
I can't wait! |
Arnold how about a test drive and a review?
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achase
Joined: 03 Sep 2007
Posts: 113
Location: West Hartford
TV/Projector: Christie 4k DCI
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| Posted: Wed May 18, 2011 12:22 am Post subject: Re: Reflections on my theater ‘project’ |
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| Tom.W wrote: | | achase wrote: | | kal wrote: |
| Quote: | | I am searching for an external “black box” / IR emitter driver that will allow the matte screen to handle 3D with active glasses. |
We've partnered with a company and have boxes coming out in the next few months that will offer 3D on any display... stay tuned to our newsletter for more information. The 3D-Gamer is the first in the line. More to follow...
Kal |
Kal, I can't tell you how happy hearing that news made me! I eagerly awaited the 3-D adapter for my Mits LaserVue, but when I actually viewed 3-D program material on a 65" screen, it was nothing like the 3-D IMAX presentations I've fallen in love with. With my HT, I've got the screen size to fill my peripheral vision, so 3-D should be very "IMAX-like". Anything other than a matte screen would not work in my theater, however, so active glasses is the only way I can go.
I can't wait! |
Arnold how about a test drive and a review?
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Unit ordered!
As soon as my first fund-raiser is over this Friday, I'll fill everyone in on the latest HT developments.
Arnold
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kal
Forum Administrator
Joined: 06 Mar 2006
Posts: 18114
Location: Ottawa, Canada
TV/Projector: JVC DLA-NZ7
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achase
Joined: 03 Sep 2007
Posts: 113
Location: West Hartford
TV/Projector: Christie 4k DCI
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| Posted: Wed May 18, 2011 2:53 am Post subject: |
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My only concern at this point is the range of the Zigby transmitter. To ensure a robust signal in a busy RF environment (cellular repeaters, WI-FI, etc.), I ordered a high-power Zigby repeater which should cut through anything.
I can't wait to start playing with the converter!
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