would a sub be worth it?

Discussion in 'Speakers & Subwoofers' started by KyleCT, Oct 5, 2003.

  1. KyleCT

    KyleCT Stunt Coordinator

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    I have a yamaha rx-v870 reciever (its fairly old). I dont believe this reciever has a separate subwoofer output. (it has L/R, rear L/R, center). If i recall corectly, most recievers these days have separate hookups for subwoofers.

    Correct me if i am wrong, but i am assuming that new amps with the sub hookups send most of the bass to the woofer, and not as much to the L/R speakers. Is this how it works?(if i was designing amps this is how i would do it) I was thinking about getting a woofer in order to reduce the stress on my L/R speakers.

    Here is the problem though: If i get a woofer, i would have to hook it up as my "B" speaker. If i did this, and played played both my "A" speakers and "B" speakers at the same time, i dont suppose this would reduce the bass played through my "A" speakers. So here is my question.

    Would it even be worth it for me to buy a subwoofer?

    One other thing, the back up my reciever does have a "Low pass coupler". What is this?

    Thanks for the advice
     
  2. Chris Quinn

    Chris Quinn Screenwriter

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    Most subs allow you to use the sub for crossover control. Instead of using the LFE line input you'd run your wire to the sub's input and then from the sub's out to your speakers adjusting the crossover at the sub.

    There is debate as to whether this is actually a superior way to run the a sub. My set-up is a good example; my receiver has just one crossover point 100hz but my speakers go down into the 60hz range if I were to crossover at the I could adjust it to an 80hz crossover. Now, I don't do it because one LFE cable is a lot cleaner look than running wires from the receiver to the sub then to the speakers.
     
  3. Robb Roy

    Robb Roy Supporting Actor

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    As Chris points out, most quality subs will work with your system. I believe that receiver, though, is a pro logic unit, so you might want to consider moving to a Dolby Digital unit anyway.

    And yes, getting a subwoofer is worth it -- very few speakers can handle the lows of newer action movies and music like a quality subwoofer.

    -Robb
     
  4. MichaelDDD

    MichaelDDD Supporting Actor

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    Mike
    As Robb said, getting a sub is MOST definitely worth it.

    My first HT/Music sub was one I built myself using a JBL 12" car audio woofer. I called JBL and they recommended a 3.5cf ported box for flat response down to 25Hz (IIRC). I've built many a box for trunks/backs of SUVs so it was a no-brainer.

    Powered by an old 200watt Kenwood amp run off a 12v bench test power supply, it rocked my socks off. [​IMG]

    Then, you want more and better, so I purchased a Cerwin-Vega LW-15, which was a big step up.

    THEN......you want more and better. [​IMG] Got a SVS PB2 plus on the way.

    You really should upgrade your receiver, though. Even a B&M $250 Dolby Digital receiver will be gigantic step up from what you have now. There's ZERO comparision b/t Dobly Pro Logic and Dolby Digital. It's another world, entirely.

    In fact, if your budget is limited (whose isn't?) I'd upgrade the receiver first. Sell the old one and put the proceeds towards your new sub. [​IMG]

    Even without the sub, you'll notice movies are a LOT more enjoyable. You do have five speakers (R/L/C/2 surrounds) right?
     
  5. Steve Adams

    Steve Adams Second Unit

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    subs are definantly worth it, im going to run two dayton 10" subs in my ht in the future, im going to run one for now. these subs are cheap and really good from what I hear.....
     
  6. DarrenAlan

    DarrenAlan Stunt Coordinator

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    Steve, are you talking the cheap ($125) Daytons? I think you'd be much better off running one good-quality sub instead of two cheap boom boxes. I would think the $350 10" Dayton sealed sub would be far superior in sound quality than its cheaper cousin.

    Of course, if it's only output you're looking for, then go for it I guess.
     
  7. Steve Adams

    Steve Adams Second Unit

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    Well, from what im reading, is that they are very well built and sound great. 2 are better than one, so im going to do that, if it don't sound good, I will sell them....but for right now, they fit the budget, I can get two of those for cheaper than 1 velodyne ch8 here in newfoundland, so that is a way better option imo....
     
  8. KyleCT

    KyleCT Stunt Coordinator

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    so if i were to get a woofer, i would just hook it up as a "B" speaker, correct? Does anybody else have a sub set up like this? If so, how does it sound? Thanks.
     
  9. Robb Roy

    Robb Roy Supporting Actor

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    KyleCT,

    I apologize that the email version of this post you received was not very clear. I fixed the really goofy sentence (I'm on my first cup of coffee).

    You would not set up the sub as a B speaker. If you do not want to upgrade your receiver, you would run speaker wire from your receiver to the sub's speaker line in, then from the sub's speaker line out to the speakers. This is also known as the high level input.

    Here is an image from the SVS PC+ amps that show speaker inputs, the crossover, etc.

    [​IMG]

    -Robb
     
  10. KyleCT

    KyleCT Stunt Coordinator

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    sorry, from one of those responses it didn't seem like that was always the best way to hook it up.

    I know that it is recomended to get a sub as the same type of my other speakers, but if i were to go with a different brand, what should i look for?

    I have polk r30 front speakers.
     
  11. Jeff Gatie

    Jeff Gatie Lead Actor

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  12. Robb Roy

    Robb Roy Supporting Actor

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    KyleCT,

    If you were running a newer receiver, then I'd recommend using an RCA cable connection rather than high level connections (that would reduce the number of connections from your amps to your speakers, and a receiver is likely to have a better crossover than is a sub's internal amplifier). With your receiver, however, it does not appear you have a choice but to use the high level connections.

    As Jeff mentioned, your sub is the least important to match with your other speakers. In fact, some of the best subwoofers out there are made by companies that *only* make subwoofers. Velodyne, for instance, makes speakers, but their bread and butter is subwoofers and they know it. SVS and Hsu are Internet companies that only make subwoofers and are adored by their owners (I personally own an SVS that that you could only get out of my hands if I were dead or by getting another SVS).

    You will need a powered subwoofer with high level inputs, and a built-in crossover (try to find one with settings above and below 80Hz to customize with your speakers, which will be important with high level connections). From there, you'll want to make certain it can fill your listening area, at your listening volumes, down to your source material (e.g., you like action movies very loud or listen to pipe organ music, etc.).

    -Robb
     
  13. Brian Bunge

    Brian Bunge Producer

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    Darren,

    If they new Dayton subs are anything like the original Dayton 10" subs then they are definitely NOT boom boxes. I believe they are one of the best quality subs that you'll find under $400 or so. At least if you go to the traditional sources such as BB, CC, Tweeter, etc.
     
  14. KyleCT

    KyleCT Stunt Coordinator

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    whats a good website that reviews different subs?
     
  15. Robb Roy

    Robb Roy Supporting Actor

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    KyleCT,

    You've already found it -- the collective reviews/opinions here are very thorough. If you posted a thread asking for subwoofer recommendations, you'll quickly be overwhelmed with opinions.

    What are the dimensions of your listening area? Be sure to include any adjoining areas for which there is a large opening into.

    To what do you listen? Pipe organ music? Action movies?

    At what volume do you listen? Background music? Movies at or near reference? Throwing raves in your living room?

    And, of course, what is your budget?

    -Robb
     
  16. KyleCT

    KyleCT Stunt Coordinator

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    i am not an audio specialist and i am not looking for a top line subwoofer. Just something to take some stress off my floor speakers. I probably will not spend much more than 200.
    I was lookin at the Sony SA-WM500. How can i tell if the subwoofer has a built in crossover. It says this sub has 2 speaker outputs (im assuming you dont run the center and rear speakers through the subwoofer, or am i wrong?)
    I dont really see the point of buying a subwoofer to fit my room right now as i will only be here for another 9 months.
    The purpose of the woofer is for home theater and for music.
    My reciever puts out 80 watts per channel to the front speakers. I dont need anything terribly loud as i cant play my front speakers very loud (i already blew them out once, hence the need for a subwoofer to lighten the load).
     
  17. LanceJ

    LanceJ Producer

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    One advantage to using the high-level inputs on a subwoofer is the (near) immunity from outside electrical interference (i.e. EMI from computers, the fridge, etc). This is because the power of the speaker-level signal relative to these stray EMI signals is much higher, compared to the small line-level signal from a subwoofer/LFE output, which makes it susceptible to picking up external electrical distortions.

    Kyle: that "low pass coupler"--is it an RCA jack?

    LJ
     
  18. KyleCT

    KyleCT Stunt Coordinator

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    yes, what does it do?
     

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