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Rival Acoustics

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Comments

  • MartyHMartyH
    jr@mac said:
    Nobody knows what the future holds for door-prizes ;). I will say that it would be nice to see door-prize drivers show up in more builds at subsequent events. 
    Not to be a brown noser, but I made a point of ensuring that my 2014 Door Prizes made it into the 2017 Iowa show.  I heartily agree with your sentiment, JR.
  • kennykkennyk
    That's why I take xo parts. They always show up in diy builds.  :3
    D1PP1N
    ............. could you hum a few bars.
  • D1PP1ND1PP1N
    kennyk said:
    That's why I take xo parts. They always show up in diy builds.  :3
    Same grabbed some caos one year and resistors the other year. The resisters are awesome their like 18w ones. 
    kennyk
  • ani_101ani_101
    which resistors are those?
  • GowaGowa
    MartyH said:
    jr@mac said:
    Nobody knows what the future holds for door-prizes ;). I will say that it would be nice to see door-prize drivers show up in more builds at subsequent events. 
    Not to be a brown noser, but I made a point of ensuring that my 2014 Door Prizes made it into the 2017 Iowa show.  I heartily agree with your sentiment, JR.
    That's three years for the prize to be utilized. Not good from a donor's perspective.
    D1PP1N
  • PWRRYDPWRRYD
    I think Party Marty was MIA a couple years though.
  • GowaGowa
    :) 
  • MartyHMartyH
    PWRRYD said:
    I think Party Marty was MIA a couple years though.
    Yeah, I had a couple years of 'wandering in the desert'.  At my very next event my build included the TL tweeters and Esoteric mids from 2014 DIYIowa. 
  • PWRRYDPWRRYD
    Yeah kinda like Jim Morrison out in the desert doing peyote <span>:open_mouth:</span>
    GowaMartyH
  • D1PP1ND1PP1N
    AchrOhmiC made in france. They were from solen.   from the chicago DIY. They are 16w not 18w sorry. 
  • squamishdrocsquamishdroc
    Got my caps and resistors yesterday! Thanks guys for the extra resistors too =)


    jr@macD1PP1NkennykThumperTom
  • kennykkennyk
    Received mine(big grin)!  <3
    ............. could you hum a few bars.
  • Nicholas_23Nicholas_23
    Curious if any of you have had a chance to measure distortion on the rival paper carbon drivers ? My little amp died , probably my fault but then again my distortion measurements probably wouldnt be accurate anyways as Im still learning that part. 
    Thanks

  • Nicholas_23Nicholas_23
    If I missed the distortion post , please excuse me.

  • jr@macjr@mac
    I have not done any testing. 
    I have a signature.
  • D1PP1ND1PP1N
    Can anyone explain the differences mylar caps can exhibit vs polys and what frequency range they may have a negative impact? I lve been using them for testing but then buy polys after im done. I understand this is a general and vague question but im just trying to see what im losing by using those and if so is it only when your pushing lots of power to the speakers that its noticible?
  • jhollanderjhollander
    So both are metalized film on plastic. The plastic dielectric is either polyester/ Mylar or polypropylene. The polyester show greater change in capacitance over change frequency than polypropylene.

    https://www.vishay.com/docs/26033/gentechinfofilm.pdf


     John H, btw forum has decided I don't get emails
  • PWRRYDPWRRYD
    Nicholas_23 said:
    Curious if any of you have had a chance to measure distortion on the rival paper carbon drivers ? My little amp died , probably my fault but then again my distortion measurements probably wouldnt be accurate anyways as Im still learning that part. 
    Thanks

    I won't have a chance to measure mine for several months.
  • Nicholas_23Nicholas_23
    Sounds good guys, Thanks. I wasnt sure if I missed a distortion post or not. 
  • GowaGowa
    dcibel said:
    Everything about these photos says Wavecor to me. The motor looks exactly like Wavecor balanced drive, and even the label on the motor, you could literally replace the Rival logo with Wavecor. This is good news, as the retail cost a Wavecor WF182 is a lot more than the sale price of these Rival units.

    I've been thinking of what to build with my pair of Motus tweeters. Realistically I want to use the nice underhung Motus woofers, but they carry a pretty high price tag, or do I cave in and buy a pair of the Rival drivers at the current sale price? Decisions, decisions...

    Here's some photo of my WF120 for comparison.

    Driver and packaging:


    From the back with label and terminals:


    And the motor:



    jr@mac said:
    Nobody knows what the future holds for door-prizes ;). I will say that it would be nice to see door-prize drivers show up in more builds at subsequent events. 
    If you have 4 of those, I have a nice TMM design you can have. 
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