Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 30 of 38
  1. #1

    Member Sales Rating: (1)

    Join Date
    Jun 2002
    Posts
    3,860

    Default overdriving subs

    as most of u know i own 2 rti100s.......i keep the volume on the subs 3/4ths of the way up.......i know thats kinda loud but i like bass.........i heard Dr. Spec say that you could overdrive a sub having it at 1/4 the volume? should i be worried about hurting things? and how would i know if i was hurting my subs while i was listening to music or watchina a movie.....

  2. #2

    Member Sales Rating: (0)

    Join Date
    May 2002
    Location
    Vr3MxStyler2k3
    Posts
    2,112

    Default

    If you were harming it, you could probally hear it. Or you could be like me and just play it till it dies. Other than that, I would see if you can turn off your speakers, and hear the sub alone - and turn it on ur regular volume and set it up then. If you hear distortion, turn it down.
    Damn you all, damn you all to hell.......
    I promised myself
    No more speakers. None. Nada. And then you posted this!!!!
    Damn you all! - ATC

  3. #3
    Stronzo
    Member Sales Rating: (7)

    Join Date
    Apr 2002
    Location
    Over Yonder
    Posts
    7,885

    Default

    Airplay,

    A piece of advice from a former Powered Tower owner who pushed it abit far one day...

    By the time you hear fatigue, nine times out of ten, the damage has already been done. Should you be worried? Yes, it should be a concern of yours. Although the bass coming from the Rt100i's is rather impressive (I purchased a pair for my parents)..... it can be easy to blow them. Especially if you have your recieve set up for +10 bass, +10 treble or + anything. Its best to keep things neutral.

    For the subs, for longevity purposes and their own well-being, keep it at half.......

    If you really enjoy bass - get yourself a seperate a powered woofer to really crank out some low end.

  4. #4

    Member Sales Rating: (1)

    Join Date
    Mar 2002
    Location
    New York
    Posts
    3,779

    Default

    The best way to prevent overdriving any speaker (but particularly a subwoofer) is to calibrate the entire system with test tones and an SPL meter. It's cheap, it's easy, your system will sound better, and it's damn good insurance.

    Once your sub is playing at the same volume as your other speakers, it's pretty hard to overdrive it unless you are playing the overall volume at a very loud level.

    Many enthusiasts unknowing have their sub running very hot and then spin a DVD like LOTR-FOTR, The Haunting, Monster's Inc., or Titan AE at high playback and "poof" - the sub blows.

    The sounds of a sub in distress are pretty obvious - audible distortion, farting, popping, or a loud clack - damage is imminent at that point.

    If your PROPERLY CALIBRATED system can't deliver the overall volume you crave without beating on the sub, then get a bigger or better sub.

    Running your sub on the hot side to compensate for its inadequate power or a too large room is a recipe for disaster.
    "What we do in life echoes in eternity"

    Ed Mullen (emullen@svsound.com)
    Director - Technology and Customer Relations
    Specialty Technologies
    SVSound

  5. #5
    Stronzo
    Member Sales Rating: (7)

    Join Date
    Apr 2002
    Location
    Over Yonder
    Posts
    7,885

    Default

    Just got home from listening to a "calibrated" room.

    It sported NHT 3.3 towers, centers, sorrounds, a Denon reciever (forgot the model number, but I know it retails for at least 1k), all that jazz.. Phase tech sub.

    How utterly disappointing. I had my mother sit in the room and take a listen, she noticed how it sounded no better than her own home theater, which includes Polk RT100s, PolkR15s, a 300 dollar Pioneer reciever, and a 60 dollar Mintek dvd player sporting a KLH 10' sub.

    As important as calibration may be, I feel its truelly only necessary for those with a large listening area or unequal proportions. As for a room my size, or anything below a 15x15 area...... if you depend on calibration for tonal accuracy and system maintaince, a hearing aid may also do wonders., :D

  6. #6

    Member Sales Rating: (0)

    Join Date
    Feb 2002
    Location
    New Hampshire
    Posts
    131

    Default

    I have a pair of RT1000i that I had to turn uo to 3/4 to get proper bass (per spl meter), the room they are in is very difficult for bass. I felt that I may be driving them too hard (HD) so I recently bought a PSW404 to handle the low end.

  7. #7

    Member Sales Rating: (1)

    Join Date
    Mar 2002
    Location
    New York
    Posts
    3,779

    Default

    Originally posted by ATCVenom
    As important as calibration may be, I feel its truelly only necessary for those with a large listening area or unequal proportions. As for a room my size, or anything below a 15x15 area...... if you depend on calibration for tonal accuracy and system maintaince, a hearing aid may also do wonders., :D
    I think you're in the minority here, ATC. The prevalent use of SPL meters and calibration DVDs like Video Essentials and AVIA speak for themselves.

    Getting all the speakers to play the same volume is essential in a HT set-up for realistic and seamless panning between all the speakers. For the sub, it's critical - almost everyone calibrates the sub hot by ear alone.

    I don't think there's a person in this forum who didn't report an audible benefit from proper system calibration, and I suspect it's probably also saved a few subs from blowing too.

    Calibrating your HT system will allow it to play to its best potential. It won't pull blood from a turnip, though.

    As for that disappointing system you just heard, do you honestly think it sounded bad AS A RESULT OF proper calibration? Or do you think it just sounds crappy because you didn't like the speaks?
    "What we do in life echoes in eternity"

    Ed Mullen (emullen@svsound.com)
    Director - Technology and Customer Relations
    Specialty Technologies
    SVSound

  8. #8

    Member Sales Rating: (0)

    Join Date
    Jul 2001
    Posts
    6

    Default

    Originally posted by dbournival
    I have a pair of RT1000i that I had to turn uo to 3/4 to get proper bass (per spl meter), the room they are in is very difficult for bass. I felt that I may be driving them too hard (HD) so I recently bought a PSW404 to handle the low end.
    What room size do you have and what do you keep the volume set at on the subwoofer??

    Thanks

  9. #9

    Member Sales Rating: (1)

    Join Date
    Jun 2002
    Posts
    3,860

    Default

    the bass on my reciever is at the lowest, i have the equalizer off and the DSP off, i find that the bass distorts quicker if i turn up the bass on my reciever then if i turn it up on my subs......an i still in danger of blowing them? have never noticed any of the signs of damaging a sub just smooth bass.....and half way is good but not enough any other suggestions?
    SDA 2B
    Carver m0.5t
    AMC pre
    Cobalt Cables

  10. #10

    Member Sales Rating: (0)

    Join Date
    May 2002
    Location
    Vr3MxStyler2k3
    Posts
    2,112

    Default

    Buy another sub
    Damn you all, damn you all to hell.......
    I promised myself
    No more speakers. None. Nada. And then you posted this!!!!
    Damn you all! - ATC

  11. #11

    Member Sales Rating: (1)

    Join Date
    Jun 2002
    Posts
    3,860

    Default

    hold on let me get my checkbook....oh wait i have no money hmmmmmmmmm.....nething else? lol
    SDA 2B
    Carver m0.5t
    AMC pre
    Cobalt Cables

  12. #12

    Member Sales Rating: (0)

    Join Date
    May 2002
    Location
    Vr3MxStyler2k3
    Posts
    2,112

    Default

    Take a funnel like thing.....and put it around your subs.....it'll exstend the sound....
    Damn you all, damn you all to hell.......
    I promised myself
    No more speakers. None. Nada. And then you posted this!!!!
    Damn you all! - ATC

  13. #13
    Stronzo
    Member Sales Rating: (7)

    Join Date
    Apr 2002
    Location
    Over Yonder
    Posts
    7,885

    Default

    Airplay,

    There is a harsh lesson to be learned, something I am experiencing right now. To achieve good sound, you need good cash flow. Just wait until you start dealing with the real good stuff - is heavenly as it may sound - it can cost you damn near a mortgage.

    If your speakers were purchased from an authorized dealer and are still under the manufactor warrenty, then take your chances and continue on with what you are doing. If something blows, Polk will send you some new drivers.

    A seperate sub is highly recommended. You dont have to go all-out either. Hell, KLH makes a very fine 10' sub that goes for about 120 bucks. Stuff that bad boy with a pillow and your golden. It may not be the most accurate thing built, but it gives you a big bang for your buck.

  14. #14

    Member Sales Rating: (0)

    Join Date
    May 2002
    Location
    Vr3MxStyler2k3
    Posts
    2,112

    Default

    RCA makes a 12 inch sub for like....200?
    Damn you all, damn you all to hell.......
    I promised myself
    No more speakers. None. Nada. And then you posted this!!!!
    Damn you all! - ATC

  15. #15

    Member Sales Rating: (0)

    Join Date
    Dec 2002
    Location
    Michigan
    Posts
    974

    Default

    Originally posted by Dr. Spec


    Getting all the speakers to play the same volume is essential in a HT set-up for realistic and seamless panning between all the speakers. For the sub, it's critical - almost everyone calibrates the sub hot by ear alone.
    Couldn't agree more!

    Originally posted by Dr. Spec

    I don't think there's a person in this forum who didn't report an audible benefit from proper system calibration, and I suspect it's probably also saved a few subs from blowing too.
    Ditto above response. I never thought I would notice the degree of difference (pre- [by ear] and post-calibration) as much as I did. And by calibrating my sub just a *few* dB hotter than the rest of my speaks, it REALLY enhanced the overall sound without worry of overtaxing the sub at much higher volumes.
    Mains: polkaudio RTi70's (bi-wired)
    Center: polkaudio CSi40 (bi-wired)
    Surrounds: polkaudio FXi30's
    Rear Center: polkaudio CSi30
    Sub: SVS 20-39 PC+
    Receiver: ONKYO TX-SR600
    Display: JVC HD-56G786
    DVD Player: SONY DVP-CX985V
    DVD Player: OPPO DV-981HD 1080p High Definition Up-Converting Universal DVD Player with HDMI
    Remote: Logitech Harmony H688

  16. #16
    Old School
    Member Sales Rating: (1)

    Join Date
    Dec 2002
    Location
    Higher & Dryer, Texas
    Posts
    10,177

    Default

    Originally posted by MxStYlEpOlKmAn
    ....it'll exstend the sound....
    Check your dentures there Sid, may be a little loose...

    Airplay,

    Actually Sid's "add another" is a valid option. It's possible to do so "on the cheap". Many Clubbers have built their own powered subs for ~$300. Search will produce multiple hits on this to give you an idea of the effort, and I'm sure the sub craftsmen here will be more than happy to assist you in your effort.

    Other than that... only no-cost thing you can do is play with the positioning of your speakers. In-corners and on the floor tend to reinforce bass output. May compromise your listening from soundstage and other aspects. This is the reason I used "no-cost" in lieu of "free" above, but I don't sense this is as big a concern for you as getting more boom. You can do this “by ear”, but I agree with others above, a good test DVD and an SPL meter is the better, as in more precise, way to go.

    You might also “liven” your room up some. While this does not have much impact on true bass (<120Hz), I get a feeling from you that we’re talking mid-bass here as well. Possible help could include getting the speakers off of the carpet by pulling it up, or buying a couple ceramic tiles at Garden Ridge or HD and setting your speakers on these.

    All the above I wrote MAY be good, but then I reread this:
    Originally posted by Airplay355
    the bass on my reciever is at the lowest, i have the equalizer off and the DSP off, i find that the bass distorts quicker if i turn up the bass on my reciever then if i turn it up on my subs......an i still in danger of blowing them? have never noticed any of the signs of damaging a sub just smooth bass.....and half way is good but not enough any other suggestions?
    Something in this, bugged me the first time I read it, but I blew through it. After the reread I looked at your post history (it’s a curious one) to try to figure out what was going on here. I probably still don’t know, but that never stops me… ;)

    You were recently posting about: the value of adding a sub, breaking your desk, your dead receiver (did they fix the Aiwa?); an old sub that sounded bad at ¼ and …. Anyway, here are my thoughts:
    1. you’re a bass super-freak;
    2. you’ve already damaged one of more of your drivers; probably one of the RT’s mid-woofers, not the “sub” (same driver);
    3. you’re setting your receiver tone controls to compensate for the bad driver(s) as best you can; and
    4. the bad driver took out your receiver before will do it again.

    Airplay if I were you I’d get a troubleshooting guide from Polk, ASAP. Check out your Rt’s and the rest of your rig as well. And take any “suspicious” speakers back to the dealer. You are in warranty I assume… After you do this, then try the other stuff for the room livening, but I think you’ll need a “true” subwoofer to satisfy your “habit” or you’ll repeat the whole cycle…

    Let me know if I’m onto anything here…
    More later,
    Tour...
    Vox Copuli
    Better to remain silent and be thought a fool, than to open your mouth and remove all doubt. - Old English Proverb

    "It's easy to get lost in price vs performance vs ego vs illusion." - doro
    "There is a certain entertainment value in ripping the occaisonal (sic) buttmunch..." - TroyD
    "Death doesn't come with a Uhaul." - Dennis Gardner

    Rebuilding Maggie 2-ch & Amazing 2-ch... Building 2-ch "wall"... Figuring out the HT

  17. #17

    Member Sales Rating: (1)

    Join Date
    Jun 2002
    Posts
    3,860

    Default

    the problemn with my reciever had nothing to do with sound or power, it was the power supply that blew......in would switch on but would not stay on...........how have i already blown the drivers on my rts? wouldnt i hear it if i had blown them? the sub that sounds bad is over 15 years old and uses foam in its construction.....i hear nothing wrong with my speakers.......how would i know if i blew a midrangedriver?
    SDA 2B
    Carver m0.5t
    AMC pre
    Cobalt Cables

  18. #18

    Member Sales Rating: (0)

    Join Date
    May 2002
    Location
    Vr3MxStyler2k3
    Posts
    2,112

    Default

    itd crack and pop like popcorn...
    Damn you all, damn you all to hell.......
    I promised myself
    No more speakers. None. Nada. And then you posted this!!!!
    Damn you all! - ATC

  19. #19

    Member Sales Rating: (1)

    Join Date
    Jun 2002
    Posts
    3,860

    Default

    both of them sound perfectly fine, no crackling or popping from the tweeters mid drivers or woofers
    SDA 2B
    Carver m0.5t
    AMC pre
    Cobalt Cables

  20. #20

    Member Sales Rating: (0)

    Join Date
    May 2002
    Location
    Vr3MxStyler2k3
    Posts
    2,112

    Default

    Did u say that ur M&K had a foam surround?
    Damn you all, damn you all to hell.......
    I promised myself
    No more speakers. None. Nada. And then you posted this!!!!
    Damn you all! - ATC

  21. #21

    Member Sales Rating: (1)

    Join Date
    Jun 2002
    Posts
    3,860

    Default

    the MK sub has foam in it....its part of the cone.........told ya it was old lol
    SDA 2B
    Carver m0.5t
    AMC pre
    Cobalt Cables

  22. #22

    Member Sales Rating: (0)

    Join Date
    May 2002
    Location
    Vr3MxStyler2k3
    Posts
    2,112

    Default

    holy s***....lol! M&K drivers are pretty decent, but for how much the Sub cost -- they could be better. Mine have heavy duty rubber surrounds, but layered coated paper...its annoying
    Damn you all, damn you all to hell.......
    I promised myself
    No more speakers. None. Nada. And then you posted this!!!!
    Damn you all! - ATC

  23. #23

    Member Sales Rating: (1)

    Join Date
    Jun 2002
    Posts
    3,860

    Default

    go to the site....its called the volkswoofer and the mofo is old dryrotted and cracked.....prolly from when i was usin it but i dont give a crap lol
    SDA 2B
    Carver m0.5t
    AMC pre
    Cobalt Cables

  24. #24

    Member Sales Rating: (0)

    Join Date
    May 2002
    Location
    Vr3MxStyler2k3
    Posts
    2,112

    Default

    oo i believe ya...
    lol buy one of their upper drivers...they only cost 82.50! lol! And put it in there, it rocks.
    Damn you all, damn you all to hell.......
    I promised myself
    No more speakers. None. Nada. And then you posted this!!!!
    Damn you all! - ATC

  25. #25

    Member Sales Rating: (0)

    Join Date
    May 2002
    Location
    Vr3MxStyler2k3
    Posts
    2,112

    Default

    hey...u might be interested in buying a new driver from M&K, and a new amp - make sure the driver has rubber surrounds. That would be a good subwoofer.
    Damn you all, damn you all to hell.......
    I promised myself
    No more speakers. None. Nada. And then you posted this!!!!
    Damn you all! - ATC

  26. #26

    Member Sales Rating: (1)

    Join Date
    Jun 2002
    Posts
    3,860

    Default

    i have come up with this list of priorities, first i need to buy speaker wire so i can put my surround speakers where they belong, then its a new reciever prolly one from harmon kardon unless people here say otherwise, then after that im either going to buy nicer surround speakers, buy a nicer center speaker, buy a nicer TV or save for a car
    SDA 2B
    Carver m0.5t
    AMC pre
    Cobalt Cables

  27. #27

    Member Sales Rating: (1)

    Join Date
    Jun 2002
    Posts
    3,860

    Default

    wow thats a good idea....i could just put a new driver in there.........hmmmm sumthin to think about, the amp in it is prolly fine, maybe not tho i dont know we'll find out
    SDA 2B
    Carver m0.5t
    AMC pre
    Cobalt Cables

  28. #28

    Member Sales Rating: (0)

    Join Date
    May 2002
    Location
    Vr3MxStyler2k3
    Posts
    2,112

    Default

    yeah...it'll only cost u 82.50 or less then!
    Damn you all, damn you all to hell.......
    I promised myself
    No more speakers. None. Nada. And then you posted this!!!!
    Damn you all! - ATC

  29. #29

    Member Sales Rating: (1)

    Join Date
    Jun 2002
    Posts
    3,860

    Default

    what bout car audio.............could i put a car woofer in that enclosure? or is there a difference betwen HT woofers and car ones?
    SDA 2B
    Carver m0.5t
    AMC pre
    Cobalt Cables

  30. #30
    Stronzo
    Member Sales Rating: (7)

    Join Date
    Apr 2002
    Location
    Over Yonder
    Posts
    7,885

    Default

    Airplay,

    Yes - and no. Most woofers designed for automobiles are done so with one thing in mind - SPL - noise... loudness. Musical accuracy is not a priority for most affordable woofers producted for car audio.

    By contrast, HT subs are designed more towards tightness and accuracy. Often times there is a design and a primus which must be met and mated with.

    Really and truelly, it may be worthwhile to simply by a Rockford Fostgate driver for 50 bucks....plug it in, and let her rip. Just be sure you can return it if does not meet your standards.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts