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Thread: ld systems icoa 15 vs yamaha dbr 15

  1. #11
    Quote Originally Posted by Johnblaze View Post
    The rental place I use rents out mackie srm450. I just know I wouldn't be buying a sub immediately so I figured a 15 would be a little better.
    in the thread right underneith this one "choosing tops to match a sub" we discussed the ins and outs of using a sub, the advice given to me was unanimously that there is no need for 15" tops

  2. #12
    Quote Originally Posted by Johnblaze View Post
    I figured a 15 would be a little better.
    It won't. Take the $200 you'll save with 12s, put it in your piggy bank to save up for subs. And don't say 'a sub'. You'll need two. As a rule of thumb the total box volume of your subs needs to be at least twice that of your tops. However, that can work in the opposite fashion as well. If all you need to meet your needs is a single 18 inch sub then all you'll need to go with it is a pair of 10 inch tops.
    Bill Fitzmaurice
    Bill Fitzmaurice Loudspeaker Design
    www.billfitzmaurice.info/forum

  3. #13
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    In my experience there is often little difference in the lowend output between a 12" and 15" box from the same product line but the 12" is significantly smaller and easier to handle. I have done small indoor house parties with just a pair of 12's and had a "too much bass" problem that produced complaints from neighbors, it's easy to forget that just about any PA speaker is capable of quite a bit more bass spl than what most people have for a home listening system.

    For ultimate portability a system with 8" or 10" tops and a 15" sub would totally outclass a pair of 15" tops in terms of sound quality and low bass, but that system has to be used that way all the time and may cost more overall. There are always tradeoffs to make with gear purchases, 2 larger boxes is super simple but it won't give you that heavy/low bass sound that is so common in modern music genres, some DJs are fine with making that choice others want the best sound they can get.

    I own mostly 12" tops but do have one set of Yamaha DXR15s, these are all used with 18" subs most of the time but occassionally with 15" subs. There is no comparing the amount of lowend produced by the DXRs to even a single 15" or 18" sub, it's not even close.
    Last edited by conanski; 05-21-2022 at 12:39 PM.
    Paul O'Brien
    Old Tech Guy
    www.Techott.com

  4. #14
    Quote Originally Posted by Bill Fitzmaurice View Post
    As a rule of thumb the total box volume of your subs needs to be at least twice that of your tops. However, that can work in the opposite fashion as well. If all you need to meet your needs is a single 18 inch sub then all you'll need to go with it is a pair of 10 inch tops.
    what would your take be on using a 12" sub with 12" tops for certain gigs? would it be even able to add anything substantial to a setup being the same size? or would it be a waste of money (just trying to think of portable options , as the 18" that I have requires 2 people to lift it
    would you be better off getting smaller tops in that case?
    Last edited by DJ Matt; 05-22-2022 at 05:19 AM.

  5. #15
    Google 'Hoffman's Iron Law'. Loud sounds at low frequencies do not come from small speakers.
    Bill Fitzmaurice
    Bill Fitzmaurice Loudspeaker Design
    www.billfitzmaurice.info/forum

  6. #16
    Quote Originally Posted by Bill Fitzmaurice View Post
    Google 'Hoffman's Iron Law'. Loud sounds at low frequencies do not come from small speakers.
    Actually his name is spelled, Hofmann.

    Josef Anton Hofmann
    https://en.wikipedia.org/wiki/Josef_Anton_Hofmann

    It is such a common mistake that even Google will ask, "Did you mean: Hoffman's Iron Law".
    But the number of US Supreme Court judges was always 6.
    Then it was 5, then 6, then 7, then 9, then 10, then 7, and then 9.

  7. #17
    I knew him as Tony. He didn't mind people using the more common spelling of his name with two 'f', made familiar by Dustin Hoffman.
    Bill Fitzmaurice
    Bill Fitzmaurice Loudspeaker Design
    www.billfitzmaurice.info/forum

  8. #18
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    Quote Originally Posted by Johnblaze View Post
    I've been renting speakers for my private parties and now I'm ready to go ahead and buy a set. I've narrowed it down to these two. The yamahas are lighter and have higher spl but the icoas have excellent reviews too. anyone owned or used either? These would be mainly used for bday parties, weddings etc. Usually about 50-125 people max
    I use for parties up to 20+ a pair of LD System Maui 11. Sound is just incredibele

    I think you will need a subwoofer for bigger parties so maybe the LD systems Maui 11 are a good choice ?
    https://www.ld-systems.com/en/series...897/maui-11-g2

  9. #19
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    Quote Originally Posted by DJ Matt View Post
    what would your take be on using a 12" sub with 12" tops for certain gigs? would it be even able to add anything substantial to a setup being the same size? or would it be a waste of money
    Dedicated subwoofers of any size will produce more low bass than a fullrange box, but low frequency reproduction is all about air displacement so a smaller driver has to work harder to produce the same SPL as a larger driver, and that means a 12" sub may not be capable of producing enough output to keep up with 12" tops all the way to full volume. If you don't need the full output of your current tops then there is potential in this strategy but it may still take a model that is further up the food chain, I have paired EV ZLX12's with an EKX18 or ETX15 sub for example and those combos were well balanced IMO.
    Paul O'Brien
    Old Tech Guy
    www.Techott.com

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