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  1. #1

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    Default What speakers are these?

    Hey Guys,

    I just picked up a pair of speakers from goodwill over lunch - I had a hunch they might be old polks because of the "doped" woofer but there is absolutely no name or model anywhere on the cabinet. They looked quite nice to me and I liked the felt around the tweeter - used to help cut down on HF reflections? Can anyone help me identify these speakers? If I need to I suppose I could open them up... Please see the attached photo. Thanks!
    Attached Images  
    Last edited by Gavin.Wright; 10-24-2011 at 01:48 PM. Reason: typos

  2. #2

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    For some reason that woofer reminds me of IMF. But I don't remember them making a bookshelf like that.
    Quote Originally Posted by Timothy Smith View Post
    WOW!

    That's like working your way through Katie Perry in order to get to Rosie O'Donnell.

  3. #3

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    I pulled the woofer - it is made by polydax - model CN103TN. Maybe this helps?

  4. #4

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    Polydax or Polydax/Audix as they are usually known were used in a bunch of speakers. Spica, RA Labs & Rega to name just a few.
    Last edited by Joe08867; 10-24-2011 at 03:06 PM.
    Quote Originally Posted by Timothy Smith View Post
    WOW!

    That's like working your way through Katie Perry in order to get to Rosie O'Donnell.

  5. #5

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    I am thinking... possibly... 3D Acoustics (from Rhode Island) - they had a sub/sat system (mid-1980s); these could be the satellites. You can find a thread or two on them at www.audiokarma.org I briefly had the set, but gave it away. Not bad stuff.

    The IMF speakers, AFAIK, were all aperiodically loaded (damped port) or TL loaded, not sealed. I could be wrong though. Terrific loudspeakers, were most of the IMFs.
    all the best,
    mrh

  6. #6

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    Quote Originally Posted by mhardy6647 View Post
    I am thinking... possibly... 3D Acoustics (from Rhode Island) - they had a sub/sat system (mid-1980s); these could be the satellites. You can find a thread or two on them at www.audiokarma.org I briefly had the set, but gave it away. Not bad stuff.

    The IMF speakers, AFAIK, were all aperiodically loaded (damped port) or TL loaded, not sealed. I could be wrong though. Terrific loudspeakers, were most of the IMFs.
    That is what confused me. But the shape and inverted surround on the woofer made me think IMF, Fried, TDL.
    But since they are Polydax that adds like thirty speaker manufacturers.

    I do know that Audix had to use Polydax in the US because of a copyright or legal issue. So more than likely the speakers were built in the USA.
    Quote Originally Posted by Timothy Smith View Post
    WOW!

    That's like working your way through Katie Perry in order to get to Rosie O'Donnell.

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    And indeed my ever-hazy memory suggests that the 3D woofers had extroverted :-) surrounds. Definitely rubber, though.
    I don't even have a photo of the satellites AFAIK. I do have photos of the subwoofer - but that won't help bugger all, now, will it? :-P

    EDIT: FWIW, my one-and-only pair of IMFs (SuperCompact II) had normal surrounds, not inverted. They also sounded absolutely superb. They were dump finds, I wasn't using them, and so I traded them for a bunch of Nikon camera stuff for my son the mathematician cum photographer.

    EDIT^2: my original post on the ones I had, at AA back in 2001... got some replies; worth a look?
    http://db.audioasylum.com/cgi/m.mpl?...t=3D+acoustics
    Last edited by mhardy6647; 10-24-2011 at 03:46 PM.
    all the best,
    mrh

  8. #8

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    This thread is going to drive me nuts.

    I hate when I recognize something and can't place the name.
    Quote Originally Posted by Timothy Smith View Post
    WOW!

    That's like working your way through Katie Perry in order to get to Rosie O'Donnell.

  9. #9

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    When I opened one up to get the info I noticed that the entire crossover it mounted piece by piece to the inside of the back panel - everything direct wired and glued into place. There are 3 fairly large inductor and a bunch of smaller resistors, caps, etc. The tweeter is also made by polydax. Woofers appear to be 6.5" - total cab dimensions are 17" tall, 8" deep, and 10" wide.

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    I am starting to think it is a kit form of the Rogers Ls3/5a.

    Does the crossovers look like either of these?
    Click image for larger version

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    Click image for larger version

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    Quote Originally Posted by Timothy Smith View Post
    WOW!

    That's like working your way through Katie Perry in order to get to Rosie O'Donnell.

  11. #11

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    Hi Joe -

    The crossovers do not look like the two pictures you attached, inside these speakers there is PCB but just components mounted to the inside of the back panel, glued to it for the most part, and then direct wired together.

  12. #12

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    *correction - inside these speakers the is NOT a pcb

  13. #13

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    nobody knows what they are...

    I listened to them last night and they sound quite nice, good bass extension for their size, nice imaging, very easy to listen to.

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    You might want to ask on the speakers forum at AK or on the vintage forum at AA
    all the best,
    mrh

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    And please tell us when you find out. The suspense is killing me.
    Quote Originally Posted by Timothy Smith View Post
    WOW!

    That's like working your way through Katie Perry in order to get to Rosie O'Donnell.

  16. #16

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    Quote Originally Posted by Joe08867 View Post
    And please tell us when you find out. The suspense is killing me.
    you need a hobby ;-)
    all the best,
    mrh

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    I love it. You live at the dump for audio finds, and HE needs a hobby.

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    Exactly. I've got a hobby.

    EDIT: Do you... do you think they'd let me live there?! That'd be cool...
    all the best,
    mrh

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    posted over at AK - no answer yet, I will keep you guys posted!

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    help me remember not to try to answer over there, too, 'K? :-)
    all the best,
    mrh

  21. #21

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    well, nobody has been able to identify them yet - I do like the sound of them though! It's just going to bug me not knowing who made them... thanks for all the responses.

  22. #22

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    Default black acoustics?

    anyone heard of black acoustics? they look similar to some I have found but information is scarce...

  23. #23

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    Name:  photo002c.jpg
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    New SN - Ambio = Gavin

    After further investigation this speaker is a "homemade" kit of what appears to be an audiomaster design. The cabinet dimensions are slightly altered as the homemade version is assembled from thick, solid, wood. The driver compliment is the same as the Audiomaster MLS-1 I believe, polydax HD17B25J8 mid-woofer and HD100D25A tweeter. The crossover has about 12 components and the speakers are very ineffecient.

    Here is some info about the possible maker http://www.pinkfishmedia.net/forum/s...ad.php?t=58025

    I just had a tweeter go out the other day, I found a replacement on ebay but replacement parts are scarce. There was also one mid-woofer for sale, quite pricey at $200+
    Polk SDA-2B, Yamaha R-S700, Yamaha CDX-530, Apple TV, Samsung Plasma, Fiio D3 DA converter (Apple TV), Cambridge Soundworks Model 88 Radio (Bedroom).

  24. #24

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    I thought I'd dig up this old thread and post a few crossover pictures as I recently had these speakers apart.

    Click image for larger version

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  25. #25

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    Anyone have any ideas about this crossover? Maybe a kit version of some other speaker?

  26. #26
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    Seems like a complex crossover for a 2-way speaker, but I doubt it was a kit. If you want to upgrade it, the parts are laid out easy enough to swap stuff in without much fuss.

  27. #27

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    Harbeth also uses an inverted surround similar to that...I'm thinking they are a Rogers knock-off.

    Transport: Oppo BDP-103/USB HDD (flac)
    DAC/Preamp: Benchmark DAC/PRE
    Power Amp: Parasound HCA-1500A
    Speakers: Harbeth Compact 7ES-3 Monitor
    Cables: Kimber Hero/8TC; DH Labs D-75

  28. #28

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    You're probably right, I'd just love to know for sure. I keep buying new speakers as an "upgrade" to these but nothing so far has sounded as nice to my ears.

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