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  1. #1

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    Question "Resist all temptation to use the subwoofer output jack-please!"

    Originally posted by Polk in 'All You Need to Know About Bass Management:'
    Small Satellite/Subwoofer Systems, Like The Polk RM Series

    Connect the subwoofer to the Front Left & Right speaker level or preamp level outputs (Figures 5 and 7), set the Fronts to "Large" and Sub to "Off."

    Resist all temptation to use the subwoofer output jack-please.


    "Resist all temptation to use the subwoofer output jack-please!"

    Why!
    Last edited by Sumflow; 01-15-2003 at 04:03 AM.
    "At the first bend, I had the clear sensation that Tazio had taken it badly and that we would end up in the ditch; I felt myself stiffen as I waited for the crunch. Instead, we found ourselves on the next straight with the car in a perfect position. I looked at him, his rugged face was calm, just as it always was, and certainly not the face of someone who had just escaped a hair-raising spin. I had the same sensation at the second bend. By the fourth or fifth bend I began to understand; in the meantime, I had noticed that through the entire bend Tazio did not lift his foot from the accelerator, and that, in fact, it was flat on the floor. As bend followed bend, I discovered his secret. Nuvolari entered the bend somewhat earlier than my driver's instinct would have told me to. But he went into the bend in an unusual way: with one movement he aimed the nose of the car at the inside edge, just where the curve itself started. His foot was flat down, and he had obviously changed down to the right gear before going through this fearsome rigmarole. In this way he put the car into a four-wheel drift, making the most of the thrust of the centrifugal force and keeping it on the road with the traction of the driving wheels. Throughout the bend the car shaved the inside edge, and when the bend turned into the straight the car was in the normal position for accelerating down it, with no need for any corrections."

    Enzo Ferrari

  2. #2

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    BECAUSE
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  3. #3

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    Default

    I already replied to one of your posts with this URL. Read it again captain obvious.

    http://www.polkaudio.com/home/faqad/...cle=bassmanage

  4. #4

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    Originally posted by F1nut
    BECAUSE
    Agreed, you pineapple eatin mofo.
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.

  5. #5

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    It's how a sub/sat system was designed.

    Put down the playdough and do a little reading, will ya?

    BDT
    I plan for the future. - F1Nut

  6. #6

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    If'n ya gotta hear it again... you *potentially* don't use the sub out jack for two reasons: 1) depending on your receiver/processor, the sub may not play during normal stereo playback, like with CDs; and 2) if the output is filtered, AND the input to the sub is filtered, the combination of the two filters can produce undesirable effects.

    If your receiver/processor does not have a filter on the sub out jack, or if you can turn it off, or if your sub has an unfiltered input, then you should be OK using the sub out jack, at least concerning #2 above.

    If your receiver/processor doesn't use the sub during regular stereo playback, then you wouldn't want to use the sub out jack regardless of filtering.

    Tatoo that on the inside of your eyelids.

  7. #7

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    Burdette - you beat me to the punch while I was typing, so this edit recognizes your post, above.

    Also, read this thread about double filtering.

    http://clubpolk.polkaudio.com/forum/...&threadid=7294

    That wouldn't be a problem with your PSW350 if you plug into the LFE (Unfiltered) jack, though.

    Aside from the issue of double filtering (which can be avoided), I personally prefer speaks to small, an 80 Hz filter point at the receiver, and plugging into the Unfiltered LFE port, or disabling your filter at the sub if it has that capability.

    If the low level port is filtered and you can't bypass it, just crank the sub filter all the way up to its highest setting and be done with it.

    The reason I prefer the low level LFE connection method to the sub is that when the filtering is done at the receiver, it is done BEFORE the receiver's amp stage. This considerably lightens the current demands on the receiver amp and often results in noticably better sounding mids and highs.

    A speaker level subwoofer connection does not benefit from this - the receiver amp still sends a full range, full current signal to the subwoofer and the filtering is done at the sub - AFTER the receiver's amp stage.

    BTW - I haven't decided yet if you are a genuine Polk and A/V enthusiast, or if you are a forum troll just screwing with the good people around here and wasting their time. I'm leaning towards the latter, and that's why I have thus far avoided posting to any of your threads. I hope you prove me wrong because this forum doesn't suffer trolls well.
    Last edited by Dr. Spec; 01-15-2003 at 12:06 PM.
    "What we do in life echoes in eternity"

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  8. #8

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    Post

    I'm going to add my two cents here by saying that the sub connection/filtering/frequency setting issue can be a complicated one to both explain and understand, and with Dr. Spec's help and others, I believe I fully understand the topic now and my system does sound great!

    I appreciate all your help on this.

    Kevin
    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

  9. #9

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    Thumbs up filtering is done at the receiver..

    Originally posted by Dr. Spec I personally prefer speaks to small, an 80 Hz filter point at the receiver, and plugging into the Unfiltered LFE port... filtering is done at the receiver..BEFORE the receiver's amp..
    Thanks that is pretty much how TonyPTX helped me set it up. I tried some other ways and that sounds best. I was just trying to get an intelligent explanation as to why, which you have provided here. Thank You.
    BTW - I haven't decided yet if you are a genuine Polk and A/V enthusiast
    I did choose and installed a Polk system for my Dad. Subwoofers are new to me and I am impressed.

    At home in Hawaii I have a half a dozen
    JBL L100 studio monitors (3-way) and some giant JBL Studio monitors (15" woofers with a Bi-Radial horn).

    It just seems strange to me that I can ask a question and have people expect me to accept an answer like “Because!”

    If Polkie’s are the ones who give answers like “Because,” or the company says so. I want no part of it.
    "At the first bend, I had the clear sensation that Tazio had taken it badly and that we would end up in the ditch; I felt myself stiffen as I waited for the crunch. Instead, we found ourselves on the next straight with the car in a perfect position. I looked at him, his rugged face was calm, just as it always was, and certainly not the face of someone who had just escaped a hair-raising spin. I had the same sensation at the second bend. By the fourth or fifth bend I began to understand; in the meantime, I had noticed that through the entire bend Tazio did not lift his foot from the accelerator, and that, in fact, it was flat on the floor. As bend followed bend, I discovered his secret. Nuvolari entered the bend somewhat earlier than my driver's instinct would have told me to. But he went into the bend in an unusual way: with one movement he aimed the nose of the car at the inside edge, just where the curve itself started. His foot was flat down, and he had obviously changed down to the right gear before going through this fearsome rigmarole. In this way he put the car into a four-wheel drift, making the most of the thrust of the centrifugal force and keeping it on the road with the traction of the driving wheels. Throughout the bend the car shaved the inside edge, and when the bend turned into the straight the car was in the normal position for accelerating down it, with no need for any corrections."

    Enzo Ferrari

  10. #10

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    Because was answered "because" you have asked this same question a couple of times and it was answered by us and Polk administration. Not to mention it is one of the top10 questions on this form. "Who Do I Hook Up My Subwoofer"?????
    And when you get an answer you question the answer as if it was fabricated. If you read the forum ya'll find out we don't answer questions with "because".
    PS3 and HD Front Projection, life is good. Too bad Blu-Ray and the PS3 are already obsolete.....

  11. #11

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    Default Re: filtering is done at the receiver..

    Originally posted by Sumflow

    If Polkie’s are the ones who give answers like “Because,” or the company says so. I want no part of it.
    Suits me fine!

    Jeez, as Scott so eloquently stated, your question was asked and answered before. I was having a little fun, you asked "why?" and the perfect answer is "because." Lighten up.

    BTW, you're a polkie, I'm a polkhead. ;)
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  12. #12

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    Didnt he ask this like...2 or 3 times before? eh? I thought because was a good answer really. I mean really, BECAUSE polk SAYS TO. I mean u can try it, if u dont like it, then try the way POLK WANTS YOU TO. If you dont like that, then ohh well! LOL! and red and blue makes me fall asleep...

    BTW - I haven't decided yet if you are a genuine Polk and A/V enthusiast, or if you are a forum troll just screwing with the good people around here and wasting their time. I'm leaning towards the latter, and that's why I have thus far avoided posting to any of your threads. I hope you prove me wrong because this forum doesn't suffer trolls well. -DOC
    Who cares if hes a troll, him posting in thos effin colors makes my mind go in circles...
    Last edited by MxStYlEpOlKmAn; 01-17-2003 at 09:04 PM.
    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

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    Sid bitching about someone ELSE'S posting style?

    Pot, kettle, black?

    Hello? Is this thing on?

    BDT
    I plan for the future. - F1Nut

  14. #14

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    Default Re: filtering is done at the receiver..

    Originally posted by Sumflow
    Thanks that is pretty much how TonyPTX helped me set it up. I tried some other ways and that sounds best.
    There is a light at the end of the tunnel!!!
    Damn....8 lines...I've gotta put my sig on a diet now....

  15. #15

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    Sid bitching about someone ELSE'S posting style?
    Pot, kettle, black?
    Nice call Troy!
    Wow, ya - Hello McFly!!!!!! Where does he get all the shuvels.
    PS3 and HD Front Projection, life is good. Too bad Blu-Ray and the PS3 are already obsolete.....

  16. #16

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    For the record, I'm not fond of the multi-color posts either.
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  17. #17

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    Well, douche-baggy-bag has started yet ANOTHER post on the topic here:

    http://clubpolk.polkaudio.com/forum/...&threadid=7398

    Did we ever do nuclear testing in Hawaii? I can't figure this one out.
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.

  18. #18

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    This guy has got to be effffing toying with us!!!!!!!!!
    PS3 and HD Front Projection, life is good. Too bad Blu-Ray and the PS3 are already obsolete.....

  19. #19

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    Did we ever do nuclear testing in Hawaii? I can't figure this one out.
    It's from being surrounded by all that water....maybe volcanic vapors....too much sun....
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  20. #20

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    Originally posted by TroyD
    Sid bitching about someone ELSE'S posting style?

    Pot, kettle, black?

    Hello? Is this thing on?

    BDT
    Muahahha, the day I start posting in colors is the day I commit myself to the gay house...lord u'd think the dude drinks hawian punch in a coconut glass with a small umbrella sticking out the side in a laid back lawn chair that has had too much sun, no one and I mean no one can be that effin happy enough to post in colors, or stuborn enough to post the same thing 2 or 3 times....

    I think hes ran from wayyyyyyyy toooooooo many valcano's
    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

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    maybe sumflow is just testing us
    . rt-7 mains
    rt-20p surounds
    cs-400i front center
    cs-350 ls rear center
    2 energy take 5, efects
    2- psw-650 , subs
    1- 15" audiosource sub

    lets all go to the next ces.

  22. #22

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    Maybe we're testing him! So far, he's flunking out.....big time.
    'Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."

  23. #23

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    Smile Columbo

    Oh! And one more thing Doc! What about the “Set your LFE to -3 on the Reciever?”

  24. #24

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    all the colors! *PULLS HAIR OUT AS HE RUNS DOWN THE ROAD* HAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    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

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    Default Re: Columbo

    Originally posted by Sumflow
    Oh! And one more thing Doc! What about the “Set your LFE to -3 on the Reciever?”
    Already discussed at length eleswhere. Will not repeat myself - get your search on.
    "What we do in life echoes in eternity"

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

  26. #26

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    Originally posted by Dr. Spec
    From the H/K 525 owner's manual:
    With that said, keep the LFE volume at the receiver at a little less than the midpoint of the adjustment range. The reason you do this is to keep the tiny sub out pre-amp from clipping its signal and sending a distorted signal to the sub. This can happen if you set your sub volume to +10 (on a scale of -10 to +10). Since the LFE signal is so extraordinarily dynamic, it's best to give the pre-amp a lot of voltage headroom and increase bass volume at the sub, not the receiver.

    Hope this helps!

    Doc
    Thanks Doc!
    "At the first bend, I had the clear sensation that Tazio had taken it badly and that we would end up in the ditch; I felt myself stiffen as I waited for the crunch. Instead, we found ourselves on the next straight with the car in a perfect position. I looked at him, his rugged face was calm, just as it always was, and certainly not the face of someone who had just escaped a hair-raising spin. I had the same sensation at the second bend. By the fourth or fifth bend I began to understand; in the meantime, I had noticed that through the entire bend Tazio did not lift his foot from the accelerator, and that, in fact, it was flat on the floor. As bend followed bend, I discovered his secret. Nuvolari entered the bend somewhat earlier than my driver's instinct would have told me to. But he went into the bend in an unusual way: with one movement he aimed the nose of the car at the inside edge, just where the curve itself started. His foot was flat down, and he had obviously changed down to the right gear before going through this fearsome rigmarole. In this way he put the car into a four-wheel drift, making the most of the thrust of the centrifugal force and keeping it on the road with the traction of the driving wheels. Throughout the bend the car shaved the inside edge, and when the bend turned into the straight the car was in the normal position for accelerating down it, with no need for any corrections."

    Enzo Ferrari

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