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mc86
Joined: 20 Sep 2008
Posts: 767
Location: pittsburgh, pa
TV/Projector: ECP 4500 (Vidikron box), ECP4500+, wanting 07MS/07MTS, evaluating pc soft-blend
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| Posted: Sun Mar 20, 2011 7:19 pm Post subject: Why were't split racks made more? |
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I didn't want to sidetrack another thread and didn't find anything in AVS archives, so I'll ask here: why didn't some of PJs go the split pack route once tubes got over 7" tubes. My gosh, the 9"LC machines are over 200 pounds. Split systems might have offered advantages: easier to ship, install, service, conceal/keep quiet and cool, etc. So...there must be bigger design/cost issues. Safety of the HV lines? Noise and shielding of low-voltage signals from the HV lines between the two boxes? Design inertia (cost of change)? I dunno.
Matt
PS - Just to fantasize about what split racks could have morphed into given today's electronics costs and PC power: The "smarts" box would be gone. The power supplies, tubes+optics, and neck boards would be in the "projection box" that would communicate with a HTPC using a single cat5e cable. A custom board (or two?) plus software would do everything and provide instructions to the neckboard, power supply, etc. Is there no way or does this seem feasible?
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Sun Mar 20, 2011 7:47 pm Post subject: |
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Hello
The Marquee 9520 is offered at MSRP $45,995, about a $7K premium over the standard 9500 so cost is a factor for uses other than simulation.
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mc86
Joined: 20 Sep 2008
Posts: 767
Location: pittsburgh, pa
TV/Projector: ECP 4500 (Vidikron box), ECP4500+, wanting 07MS/07MTS, evaluating pc soft-blend
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| Posted: Mon Mar 21, 2011 7:04 pm Post subject: |
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Tim / all -
Why is it true that the split rack is more expensive? I presume my noob mind might be missing something totally obvious. Is it because they aren't setup to knock those out? The Hitachi RPTV I tore apart had all the boards on the bottom and then one fixed assembly up top that projected...seemed really simple.
Matt
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Mon Mar 21, 2011 7:56 pm Post subject: |
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I'm guessing it's at least partly due to the military connectors and cable assemblies they use, one of those multipin connectors can easily be $75 or so, at least when I bought them. If nothing else, the split packs are pretty labor intensive with not only extenal wiring needed, but all the pins within both units need hand soldering I'd assume.
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ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
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| Posted: Mon Mar 21, 2011 8:02 pm Post subject: |
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Probably economy-of-scale, mostly... The all-in-one-chassis design would be cheaper to design, manufacture and ship, so they sold thousands of them. The split-pack just wasn't necessary in most installations, so much more rare - they probably sold one for every 100 of the standard machines, so the bulk of the difference in the price was probably just the costs of design and chassis construction amortized over a lot less units. Add the expensive connectors, cabling, shielding, etc. and I can easily see how a 9520 would be $7k over a similar 9500.
SC
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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Tue Mar 22, 2011 3:07 am Post subject: |
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There probably isn't that big of a demand for them. I may have Curt run interference in a couple of weeks, as I pack up a half dozen.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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