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GRT 145 Second Gen Viawave tweeter is getting tested and finalaized.

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Comments

  • As far as I know, the foil has suspension along the perimeter and handles much higher power.
    I'll update as more details become available. Dmitri is showing RT850 on Moscow high end audio show and should be back in 3-4 days.
  • oh goody... no waveguide on this one?
  • Dunno yet. I'll have more info next week. I'd like to see waveguide.
  • Holy hell, that step response and CSD! 
  • Any idea on the price Roman?
  • Dunno yet, sorry. I know that it'll be able to cross lower but this is all a very general info.
  • Interesting pleasts in the ribbon .Nice to hear the suspension is still integrated into ribbon as well
  • I think they should keep that machined aluminum faceplate. It's terrific and different.
    = Howard Stark: "This is the key to the future. I'm limited by the technology of my time, but one day you'll figure this out."
  • edited November 2016
    Oh my!!  What will I do with my Gen-1 Viawaves??  
     
    jr@mackennykMzisserson
    My signature goes here
  • Bryan@MAC said:
    Oh my!!  What will I do with my Gen-1 Viawaves??  
     
    Oh, I suppose I can take them off your hands, if I have to, I guess... :-p
    kennyk
    I have a signature.
  • Bryan@MAC said:
    Oh my!!  What will I do with my Gen-1 Viawaves??  
     
    #FirstWroldProblems
    FaceS7910
  • Bryan@MAC said:
    Oh my!!  What will I do with my Gen-1 Viawaves??  
     
    You could build a kick ass speaker.
    Silver1omokennyk
  • edited November 2016
    Bryan@MAC said:
    Oh my!!  What will I do with my Gen-1 Viawaves??  
     
    Mount them in the Dog Bunkbed, it'll already have some woofers 

    HUEHUEHUE
    kennykJasonPMzissersonsquamishdrocBryan@MAC
    deadhorse - leviathan - harbinger - shockwave (wip)
  • Bryan@MAC said:
    Oh my!!  What will I do with my Gen-1 Viawaves??  
     
    Mount them in the Dog Bunkbed, it'll already have some woofers 

    HUEHUEHUE
    Groooaaan...
    Face
    I have a signature.
  • I just shot coffee out of my nose! Ouch! Lol
  • Bryan@MAC said:
    Oh my!!  What will I do with my Gen-1 Viawaves??  
     
    Mount them in the Dog Bunkbed, it'll already have some woofers 

    HUEHUEHUE
    Its the way "HUEHUEHUE" sounded in my head that got me laughing. 
  • Where's the waveguide?  :bleep_bloop: 
  • Face said:
    Where's the waveguide?  :bleep_bloop: 
    There are may be 2 versions of the tweeter. One with wave guide, one without. As far as distortion goes, 145 will cross at 2khz without wave-guide. 
    I can't wait to get a pair to play around. :#
    MzissersonFace
  • Do you have any other details, efficiency, power handling, etc
  • My understanding that efficiency is up in 98db and power handling is 20w+ RMS. I should have more info soon.
  • edited May 2017



    At

    At this point the tweeter undergone field testing. The composite foil and mounting are finalized and it's going in to production.
    The first distortion sweep is taken at 1V. Note that the sensitivity of the GRT145 is in the upper 90db.
    Second distortion sweep is taken at over 5V! 
    It looks like it'll be able to cross around 1600hz. That's borderline revolutionary for a small size ribbon.

    I will be getting first production pair in 3 weeks and will post my own data.
    Intended sale price will be between $350 and $400 a pair.
    As I've done before with RT850, first few people who are interested in trying, testing, publishing and commenting will be given a very serious discounts.

    While I haven't listen to the GRT myself yet, high order distortions look similar to Beryllium SS and lower order looks similar to conventional domes.
    kennykjr@macFace4thtry
  • ....these come out now.
  • Those are sexy looking ribbons 
  • Put me down for a pair. 
    I have a signature.
  • I gotta have a pair. <3
    ............. could you hum a few bars.
  • I am interested in a pair. Can I get the dimensions... Through hole, outside flange diameter and flange thickness?
  • I am glad a few people are interested. These babies are 1.5 kilo each!
    jr@mackennyk
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