My first sub due friday-pb 12+two, any tips.

Discussion in 'Subwoofers' started by martinoslice, Jan 9, 2008.

  1. martinoslice

    martinoslice
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    This is my first sub and wouldnt mind a few tips on setting it up. My room is an L shape livingroom/kitchen 15 x 30 x 28 the ceiling is average, im using a pioneer lx70, kef xq 5's, xq 2c, xq1's, rotel 1095, and the sub is the svs pb12+2, ive no spl metre or set up cd and i know im going to be told to buy them and i will, any tips for the meantime.
     
  2. Badger0-0

    Badger0-0
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    Yep.
    Duck the first time you hear it in anger and be amazed :rotfl:

    That apart, get a SPL and some sub tones :D

    Not much to say really. Start at low sub volume, play a bassy track, turn the sub volume up untill it sounds loud enough and then turn it down a touch.

    SVS have a good saying, which you'll read in the manual.

    "Would you adjust your tyre pressure by feeling the tyres?"
     
  3. martinoslice

    martinoslice
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    Where's a good place to get a test cd, also are the spl metre's from bk ok for this.
     
  4. Badger0-0

    Badger0-0
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    The BK one is exactly the one you want :smashin:

    If you have a "line in" socket on your computer soundcard, download a free program called "REW".
    And start reading the help files straightaway :D
    Everything you need to know is in there.
    You'll need a couple of cables, but they're not expensive.

    That'll save you having to mess about with tones.

    Otherwise, type "sub test tones" into your favourite engine. They're easily found.

    If all else fails, I can mail you some no doubt :smashin:
     
  5. Badger0-0

    Badger0-0
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    Oh, REW = Room Equalisation wizard :smashin:
     
  6. martinoslice

    martinoslice
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    ok ill get on that, also what about placement considering the shape of the room should i put it close to the wall or corner or just leave it sitting out beside the floorstanders.
     
  7. Badger0-0

    Badger0-0
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    Hmm, I take it you haven't had a look at the stickeys at the top of the forum then? :D

    Only playing you up mate, but it is a good source of info :smashin:

    Consensus says stick it in the corner, a few inches from the wall to make sure you don't restrict any ports. This will give you room gain that may or may not work in your favour.
    Sticking it between the fronts may well work well too.

    But seeing as moving a sub a few inches can make a big difference, it's all about experimentation and you should try as many different positions as possible.
    Trouble is, seeing as the human ear can't differentiate lower frequencies as well as it can higher ones, you'll never really know what's going on exactly.
    Which is why you need a SPL meter.

    Weren't we saying that in the first place? ;)
     
  8. suniil

    suniil
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    :) - make sure you have someone else to assist you to move around your sub. It's big, heavy and difficult to lift due to its size & shape.

    There are some youtube videos kicking around, showing how you can place this sub in vertical position.

    If you google for "rew radioshack", you could find some online help files

     
  9. Morb

    Morb
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    Besides all the resposible suggestions about REW etc and reading the stickies on setup i have a few things i think you should consider.

    1. Make sure you have plenty of time to play.
    2. Get out all the films you like, especially the bass heavy ones. You will want to re watch your entire collection.
    3. Get some beers and snacks, this will help with 2.
    4. Invite people over and scare them with bass from animations, Darla fish tank scene anyone?
    5. Prepare to think you have also got new speakers.
    6. Make sure your house is sturdy its about to get shaken.
    7. Prepare for lots of smiling your in for a great time.

    Hope everything goes well and you have some help your in for a very nice surprise. :D
     
  10. martinoslice

    martinoslice
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    Ok cheers, i ordered an spl metre today should be here tomorrow, i also downloaded an rew program but theres no instructions i just need to get the jist of it, i need a microphone then what?
     
  11. Badger0-0

    Badger0-0
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    Install and run the program.
    The instructions are under Help mate.

    Be aware that as soon as you run it, it will silence your soundcard, so you need to know how to turn it back on (which isn't hard).
     
  12. martinoslice

    martinoslice
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    Ok cheers, feel a bit stupid now.
     
  13. Badger0-0

    Badger0-0
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    Hey, not at all mate :smashin:

    No worries :)

    This is a very complicated program and needs some major effort to make it work for you.
    But if you're willing to have a go, you couldn't find a better place for help, trust me ;)

    Most people bottle it just at the thought :)

    Not one of us are in the computer programming level (as far as I know) but we all have a passion. If you get into this program, you'll see what I mean :)

    Just ask the questions, if you get stuck, someone will be able to help you out :thumbsup:
     
  14. martinoslice

    martinoslice
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    Ok ive measured all my speakers with the spl at 75db what db do i set the sub at? i tried 78db with the amp set to 00 but on the amp settings its went right down to -10(for the sub). Do i adjust the amp to a higher setting and start again. The subs gain is set to 1/3.
     
  15. martinoslice

    martinoslice
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    Ok i got that sorted, i have positioned the plus 2 in a corner would i be better with the ports facing me or into the corner.
     
  16. martinoslice

    martinoslice
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    Anyone.
     
  17. Nimby

    Nimby
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    The ports produce a lot of air movement when the sub is pushed hard.

    There are still no hard and fast rules though.

    It's always a matter of trying the options and seeing which suits you best.

    No two rooms are alike. No two listeners are alike.

    I'd just enjoy it for a while and try different settings for gain (and possibly phase) to see what makes it sound better or worse.

    Most people have a limit to how much bass they can tolerate before it drowns out the speakers and sounds slow and heavy.

    There is a sweet spot on the gain control where a sub just seems to work best on most material. Usually film bass wants to be a bit louder than music.

    Relax. It's not a test. No highest score. It's all about fun and what you enjoy yourself.

    The REW and SPL meter stuff is just to optimise your sub's position and settings. There's plenty of time for that after you've enjoyed your film and music collection.

    With a PB12+2 as your first sub you should be completely blown away and grinning form ear to ear! It's called "the SVS grin". :D
     
  18. martinoslice

    martinoslice
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    Yea it is pretty amazing, thanks for the reply.
     
  19. martinoslice

    martinoslice
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    Only one thing it seems a little behind when i play dance music ive played with the phase and changed positions but no joy, any suggestions.
     
  20. Turtles

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    Martinoslice,

    I have the same sub as you and also never really noticed any change from using the phase. I spent some time trying and never really got any discernable difference, I know that doesn't help but makes me think there's not much to be had. I await flames....but may learn something!
     
  21. martinoslice

    martinoslice
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    The only other thing i thought of was changing the drivers form 12.2 to 12.3's, which drivers do you have.
     
  22. Turtles

    Turtles
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    just the 12.2's, they do me!
     
  23. martinoslice

    martinoslice
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    I read the 12.3's are tighter i wonder if that will sort the delay. But subsonicsounds in kent say theres only a very slight difference in the two drivers.
     
  24. Badger0-0

    Badger0-0
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    You should try altering the distance settings for the sub, on your amp.
     
  25. Andywilliams

    Andywilliams
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    Hi Martin
    Have you got separate input levels on your amp for each device ie cd player tuner etc if you have you will find when setting your system up that the sub level on the amps setting could be -1db say for movies but with music it will be -5db, on my system if i was to play music with the same settings as movies it would sound bloated and slow this could be whats happening iam sure most people on here run there subs slightly hot :devil: when watching movies.
    Andy.
     
  26. martinoslice

    martinoslice
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    Ok i told the amp the subs 9 metres away and that seems to have fixed it happy days...thanks for the info
     
  27. martinoslice

    martinoslice
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    Does any body know if its ok to block any ports on the plus2 if its set at 16hz as the guy that sold me it seemed to think it would damage it but wasnt sure.
     
  28. dts197

    dts197
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    On the Plus/2:
    25hz setting = no bungs, 20hz setting = 1 bung, 16hz setting = 2 bungs.

    It tells you about the bungs in the instructions.
     
  29. martinoslice

    martinoslice
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    I didnt get the instructions with it and on the svs website you can download them but no mention of bungs, just to be clear at 16hz i block 2 ports.
     
  30. dts197

    dts197
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    Yep, 16hz block 2 ports.
     

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