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    Exciters used for speakers

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    CNCfan

    Posts : 21
    Join date : 2018-08-13
    Age : 70
    Location : Houston Texas

    Exciters used for speakers

    Post by CNCfan on Mon Aug 27, 2018 4:47 pm

    Thinking of  my ST70 build in this thread http://dynacotubeaudio.forumotion.com/t3803-started-down-the-road
    I know I am going to run into a problem on speakers in the living room where we have the tv.  Wife does not like "big
    ugly box's) in her living room.(her description)   So......I ran across this youtube video and I think it might be an answer to my problem plus
    solve the money for speakers that do not sound like something that fell off the back of a truck that some guy will make you a great
    deal on.

    The amp will get the majority of use while watching movies on the TV.  

    Skip to the 14 minute mark for the demo of playing music.  

    Wondering if anyone has ever tried this. To me, it sounds pretty good considering it came from youtube.


    Forgot the youtube link
    OOps  sorry ViperZ  here is the link.   https://www.youtube.com/watch?v=zdkyGDqU7xA



    Last edited by CNCfan on Mon Aug 27, 2018 6:04 pm; edited 1 time in total
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    ViperZ

    Posts : 62
    Join date : 2010-03-26

    Re: Exciters used for speakers

    Post by ViperZ on Mon Aug 27, 2018 5:07 pm

    Sorry, where is the link to youtube video?
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    j beede

    Posts : 466
    Join date : 2011-02-07
    Location : California

    Re: Exciters used for speakers

    Post by j beede on Mon Aug 27, 2018 7:24 pm

    This approach has been around for a long time. I remember BES/Bertagni selling a speaker built this way with an expanded polystyrene (i.e. Styrofoam) panel back in the early 70s. At the NorCal audio show last year someone was demo'ing canvas "artwork" playing music using this principal.

    Why not pick up a pair of used Magneplanar MMG for ~$300 and see what happens? They are not the ideal load for your Stereo 70 but will be pleasant with acoustic music and vocals. They are big, but not boxes.

    A pair of Quad 11 or 12 or S-1 or S2 two-ways on stands will produce big sound from a small speaker. My bird's eye maple 11L2 are stunning to look at and are voiced like the Quad ESL (a good thing). Again, not a perfect match for the Stereo 70 (is anything?).
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    CNCfan

    Posts : 21
    Join date : 2018-08-13
    Age : 70
    Location : Houston Texas

    Re: Exciters used for speakers

    Post by CNCfan on Mon Aug 27, 2018 8:07 pm

    J beede, I will check out the Magneplanar MMG in your post.  

    This same guy did a little more tinkering and for my 70 year old
    ears even with youtube in the middle I think his setup sounded
    pretty good.  

    If nothing else works for me (ie, wife approved queen ) depending on
    the way I shape, paint them this may get her approval.  If I go in this direction
    I think I could make a set that would more or less fade into each panel the speaker(s)
    would be mounted to in the living room, If not they will live in my office where I do my hobbies.  


    Like I have said any speaker would have to get the approval of the wife.
    So, nothing is set in stone at this point.  If things do not work out for the amp



    Last edited by CNCfan on Mon Aug 27, 2018 8:24 pm; edited 1 time in total
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    CNCfan

    Posts : 21
    Join date : 2018-08-13
    Age : 70
    Location : Houston Texas

    Re: Exciters used for speakers

    Post by CNCfan on Mon Aug 27, 2018 8:18 pm

    j beede wrote:This approach has been around for a long time. I remember BES/Bertagni selling a speaker built this way with an expanded polystyrene (i.e. Styrofoam) panel back in the early 70s. At the NorCal audio show last year someone was demo'ing canvas "artwork" playing music using this principal.

    Why not pick up a pair of used Magneplanar MMG for ~$300 and see what happens? They are not the ideal load for your Stereo 70 but will be pleasant with acoustic music and vocals. They are big, but not boxes.

    A pair of Quad 11 or 12 or S-1 or S2 two-ways on stands will produce big sound from a small speaker. My bird's eye maple 11L2 are stunning to look at and are voiced like the Quad ESL (a good thing). Again, not a perfect match for the Stereo 70 (is anything?).


    Was just looking at a few of these, I think I may be able to talk my wife into a set. Will have to find someplace that has them in a show room.
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    Dave_in_Va

    Posts : 236
    Join date : 2013-04-02

    Re: Exciters used for speakers

    Post by Dave_in_Va on Mon Aug 27, 2018 9:44 pm

    Thanks for posting that interesting video.
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    corndog71

    Posts : 668
    Join date : 2013-03-19
    Location : It can get windy here

    Re: Exciters used for speakers

    Post by corndog71 on Mon Aug 27, 2018 10:51 pm

    What about small bookshelf speakers and a sub?

    If you’re feeling crafty you could build a pair of these...

    http://gr-research.com/lgk10kit.aspx

    They can be painted any color and wall mounted.
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    sKiZo

    Posts : 1496
    Join date : 2013-04-01
    Location : Michigan USA

    Re: Exciters used for speakers

    Post by sKiZo on Mon Aug 27, 2018 11:21 pm

    I've got a pair of '80ish Gecko flat panels here that sound right nice. Only 14", so not much in the way of bass, but I just use them to augment the rear channels on my quad, so not a problem. Mids and treble are excellent.



    One other advantage with the flat radiators is sound field. You can put these thing side by side and still get stereo walking back and forth in front of them. Kinda kewl, that.
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    Peter W.

    Posts : 888
    Join date : 2016-08-07
    Location : Melrose Park, PA

    Re: Exciters used for speakers

    Post by Peter W. on Tue Aug 28, 2018 1:17 pm

    I keep a pair of Magnepan (Maggie) IIIas with the outboard crossover. At 6' x 2' x 1.5", they are not exactly subtle in the room. At the same time, they have a very small footprint and fill a very large room (17' x 24' x 10') with clear sound.

    Beware that they are power-pigs, and in that room, every bit capacity from my Citation 16 is required for full sound. I am driving the 16 with a Revox A720, quite a combination!

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