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  1. RodN

    142.5L shiva box help.....yet again

    Russel, nice theatre. Fred. If its constructed properly you don't need legs that wide/large. Think of the physics. There should be minimal lateral pressure on them. All the pressure is vertical. Do you think that several hundred kilos could squash 1 1/2" dowel vertically? Now your sub won't...
  2. RodN

    Interesting IB woofer from John at Stryke, and great deal!

    Joe if they were true IB that would be enough. If you are thinking of sealing or porting them in a confined space then it's nowhere near it.
  3. RodN

    Size of shelves for flexy rack?

    Those holes are a great idea! Wish I had of though of that when I built mine. About your shelves, in Home Theatre, can I suggest that "size DOES matter" ? :wink:
  4. RodN

    Size of shelves for flexy rack?

    Hi Michael, Thicker is better if you ask me, good move :) I used 2 18mm sheets laminated making 36mm (almost 1.5 inches thick) per shelf - why the hell not, MDF is cheap enough. Because it's solid there is no chance of vibration from things like your HTPC to work their way up to things...
  5. RodN

    diy Shiva sub

    You are right Kyle you don't need to screw. The bond with MDF glue will break the MDF before the glue join as it basically soaks into the MDF, and, as it's harder, becomes tougher than just solid MDF. Screws might help keep a job square if the clamping is not done properly but that's about it...
  6. RodN

    Longest possibly HDMI run?

    Try http://www.hdmi.org/
  7. RodN

    Proven Dual Tempest Designs?

    Why not just follow the low Q design from the whitepapers then mount one sub on top of the other?
  8. RodN

    Tempest Excursion Confusion

    Greg, Dunno why you would want to go that close to the tempest excursion limits. Isn't the question flat response to around 20Hz without reaching that limit? Your graph would suggest you are achieving this. Joe L, Are you sure there's any rumble filter in that amp? I'm using the 250W amp...
  9. RodN

    Help!! Building New Home W/ Theater Room (Merged)

    I have a Sanyo Z2 which has lens shift and can say that it works beautifully with no degradation in picture quality. It isn't just 'advanced keystoning' so you'll be able to adjust your screen to suit your requirements although I'm not sure if the sharp will let you do this most 'good' digital...
  10. RodN

    DIY Sub Information

    If I could just support what Graham has said. If woodworking is not an issue for you then correct engineering/design of the electrical components is (i.e not knowing 'what this frequency stuff is') would mean that a 'pure kit' (just instructions) would solve this problem. This would lead me to...
  11. RodN

    Flexy Rack & Equipment position - some opinions needed

    Hi Robert, The shelves are 18mm*2 making for a 36mm thick shelf. I went for this as for cd/dvd playback a stable platform makes for cleaner sound. I have not experienced 'cleaner sound' as that would take too much to setup and test but I am trusting the experts. This is why you see audiophile...
  12. RodN

    Flexy Rack & Equipment position - some opinions needed

    I find my behringer BFD display to be a distraction. I use old x-rays to put over the display to really darken it up. It really depends on the equipment, I removed all of the lights connections on my HTPC because of the same thing. The amp is fine, all depends on your equipment. Dark glass might...
  13. RodN

    Flexy Rack Progress

    Thanks for that! It's a shame you can't see it IRL, I really surprised myself, looked so much better than I'd hoped for. You can't see the washers because I painted them black. I used tap washers for the rubber component. They're a nice stiff rubber and, hopefully because they're tap...
  14. RodN

    Flexy Rack Progress

    Hi Jarret, I just finished my Flexy-rack: I used laminated mdf (18*2) for 36mm thick shelves. The top is pine stained with rose mahogany. I have a build diary here if you're interested.
  15. RodN

    Painting 101

    Ken, Yes, on my WWW link :) (Top of each post) It has gone further than this, I'm putting it together tomorrow after one more coat of clear. By the end I was down to 1200grit wet sands. You'll notice I used a roller with black enamel paint for a base coat. Worked ok but if I had my time...
  16. RodN

    cutting sonotube caps

    Cut around using a jigsaw first, leaving about 5mm (1/4") for the router to take off. Makes things MUCH easier for the router.
  17. RodN

    Painting 101

    I'm in the process of doing my flexy. By hand, definitely by hand. Because the palm sanders are orbital they are ok for a quick rough sand down but if you want a really smooth flat surface you just cant beat by hand. If there is even the remotest of chances of the sand paper getting clogged with...
  18. RodN

    Jasper Jig Model 200 deficiencies

    I did my own too, just modified the straight jig the router comes with so I could use some thread for the router fixing. Works like a charm! Although the jasper would be nice for consistent measurements.
  19. RodN

    CSS Elf Spires completed!!( Pics inside)

    Curt, Wow, fantastic work, that design is interesting, the picture with the sand in it really raised my eyebrows! And so you should be proud of yourself, they look loads better than anything you'll see in a shop! They'll probably improve over the next 100 odd hours of breakin time too. So...
  20. RodN

    Does the shape of the enclosure matter ?

    Ok so it's determined that standing waves are not an issue for subs - so why then does more stuffing in a sealed sub effectively increase an enclosures Q? I thought it was because they broke up standing waves?
  21. RodN

    Placing a vertical MTM horizontal?

    To define whether you think horizontal placement is desirable just try what you have horizontally. SIt in your listening position and get someone to sit the speakers you have horizontal, then vertical. You'll be surprised at the difference in sound and it might change your priorities. For me...
  22. RodN

    Sitting on subwoofers...

    Furniture like couches absorb sound. Unless you want single-noted and muffled bass I would avoid it. You would also lose some SPL.
  23. RodN

    Pro audio vs consumer audio

    Wayne, This makes a lot of sense. You've answered questions I didn't even know I had, thank you very much for the detailed response. As I was considering Kit amplification which produces oustanding results I don't think I'll pursue the pro-amp route, thanks again! Rod
  24. RodN

    Pro audio vs consumer audio

    Hi, I was wondering what peoples thoughts were on the difference in quality between professional audio gear (like Crown amps, Alesis etc vs 'regular' consumer audio stuff (like Marantz, Rotel etc). There seems to be a lot of high wattage amps on Ebay and elsewhere from the Pro Audio side...
  25. RodN

    Show off your sub!!!

  26. RodN

    What kind of wire should I use for a 45' sub-woofer run?

    Just strip it back and away you go (strip the shielding at the same level as the insulation. I had tried running the shielding to amplifier ground but found that made no difference, the shielding was acting as an EMF buffer anyway. Solid core vs stranded is an argument for another thread I...
  27. RodN

    What kind of wire should I use for a 45' sub-woofer run?

    Although it's speaker level I'd use quad shield RG6 for a run that long, just to be sure.
  28. RodN

    Pics of my new Tempest sub

    That's cool, yeah it's an AVA 250 from Adire Audio, nice amp. I particularly liked the crossover bypass switch, the lack of any sort of boosting in the frequency range and the phase dial (rather than a switch). Many of the more budget amps don't offer these things.
  29. RodN

    marble sub

    Yury, Nice subs, I wonder if you have any pictures of one in Black Marble??? Now that would look nice!
  30. RodN

    Pics of my new Tempest sub

    Thanks people! It really was fun to build - and yes, they do bridge the gap between furniture and musical devices, don't all good speakers do that? (B&W nautilus come to mind)...
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