Same drivers?

drumiv
drumiv Posts: 171
edited September 2013 in Vintage Speakers
I'm just curious here. I have 2 sets of M-4's, the drivers look just like the drivers in my SDA's. Are they the same? On a side note, I was surprised at how good they sound.
Post edited by drumiv on

Comments

  • westmassguy
    westmassguy Posts: 6,850
    edited September 2013
    drumiv wrote: »
    I'm just curious here. I have 2 sets of M-4's, the drivers look just like the drivers in my SDA's. Are they the same? On a side note, I was surprised at how good they sound.
    The majority of Monitor 4s used MW6502 woofers which are 4 ohm (the early 4s with the Peerless Tweeters may have 8 ohm drivers). The SDAs used 8 ohm drivers, and there are many different 8 ohm drivers, depending on which SDA model you have.
    Home Theater/2 Channel:
    Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
    Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
    Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
    Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
    Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer

    dhsspeakerservice.com/
  • Mr. Bubbles
    Mr. Bubbles Posts: 736
    edited September 2013
    Check the schematics/ parts lists in the stickies.
    If con is the opposite of pro, is Congress the opposite of Progress?!


    Monitor 5Jr, Monitor 5, RTA12, RTA 15TL, SDA 2A, 1c, SRS 2, 1.2TL, CRS, Atrium.
  • drumminman
    drumminman Posts: 3,396
    edited September 2013
    Pull a driver out and look at the label on the back; should be clearly marked as to driver #.
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills/jantzen inductors, Gimpod's boards, Lg Solen SDA inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR BP's, upgraded IC Cable, Black Hole Damping Sheet strips, interior of cabinets sealed with Loctite Power Grab, AI-1 interface with 1000VA A-L transformer
  • drumiv
    drumiv Posts: 171
    edited September 2013
    I was trying to avoid pulling drivers. That day will come soon enough. Just curious. Thanks for the replies.
  • Nightfall
    Nightfall Posts: 10,086
    edited September 2013
    drumiv wrote: »
    I was trying to avoid pulling drivers.
    Why?

    All of the vintage Polk MW drivers look the same. Every pair of Monitors, RTAs, SDAs, all of them.
    afterburnt wrote: »
    They didn't speak a word of English, they were from South Carolina.

    Village Idiot of Club Polk
  • drumiv
    drumiv Posts: 171
    edited September 2013
    Simple, you start taking things apart, bad things can happen. It's one thing to f... something up while doing a repair, but another if doing it for the hell of it(or curiosity, in this case).
  • drumminman
    drumminman Posts: 3,396
    edited September 2013
    Pulling drivers is not difficult. Your MW's have two wires connected to them with push on quick connects. To read the label you probably don't even have to disconnect the wires, just pull the driver out enough to see the label.

    When you put the drivers back in and tighten the screws just don't over do it. The screws are only going into MDF, so if you over torque you can strip the hole. In fact that's one of the recommended mods: either Larry's rings or Hurricane nuts and cap head screws, so the screws are going into metal inserts. Also more solidly couples the MW's to the front baffle.
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills/jantzen inductors, Gimpod's boards, Lg Solen SDA inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR BP's, upgraded IC Cable, Black Hole Damping Sheet strips, interior of cabinets sealed with Loctite Power Grab, AI-1 interface with 1000VA A-L transformer