Building a pair of Polk Monitor 10's

15681011

Comments

  • motorhead43026motorhead43026 Posts: 3,688
    Stock M10'S do not have Dacron in the PR compartment. Also it is rolled up behind the mids.
    2 channel: Anthem 225 Integrated amp; Parasound Ztuner; TechnicsTT SL1350; Vincent PHO-8 phono pre; Marantz CD6005 spinner; Polk SDA2BTL's; LAT International speaker cables, ZU Mission IC's and power cables all into a PS Audio Dectet Power center.

    Other; S60'S, M10 series II, M7C's, Hafler XL600 amp, RB-980BX, Parasound HCA-1500 amp , P5 preamp, all in storage. All vintage Polk have had crossover rebuilds and tweeter upgrades.

    There are three things that give a man a false sense of courage, a keyboard, alcohol and a firearm.
    Motorhead, 4.12.20

    tonyb said " but even socialists can do a good thing here and there

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  • willwillywillwilly Posts: 185
    Stock M10'S do not have Dacron in the PR compartment. Also it is rolled up behind the mids.
    Really, I have plenty of fill.
    Will I am
  • F1nutF1nut Posts: 44,797
    willwilly wrote: »
    Weak, old plastic with new seal bends and one hole cracked. Larry's ring for the crossover?
    t3mky00j2p6w.jpg

    What are you using for the seal?
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • F1nutF1nut Posts: 44,797
    edited April 2016
    willwilly wrote: »
    Stock M10'S do not have Dacron in the PR compartment. Also it is rolled up behind the mids.
    Really, I have plenty of fill.

    Will, motorhead is right. You want one roll behind each mid that does not enter into the PR area. Best to rip out what you've got in there and start again. Parts Express carries what you need.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • westmassguywestmassguy Posts: 6,668
    I explained earlier where the Dacron goes. Since you didn't put in a center brace between the woofer openings, you can do two rolls, side by side. The rolls should be long enough to go from the bottom of the woofer openings to the very top behind the tweeter. Tack the rolls on either side to keep them in place. The bottom of the cabinet should be empty other than the crossover. An additional damping option, is Black Hole 5 or Sonic Barrier under the Dacron, behind the woofers.
    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
    Cables: Speaker: Furez 10/2 with GLS Locking Banana Plugs
    Interconnect: Furez 10/2 with SpeakONs
    ICs: Custom Furez by Douglas Connections
    Den:
    Bose 901 Series II Continentals Restored, Re-Built Equalizer with Elna Silmic IIs, Sonicaps, and Silver Mica Caps
    Carver CT-3 Pre, Carver C-500

    dhsspeakerservice.com/
    Exclusive Distributor of Gimpod's Custom SDA Circuit Boards

    "And keep her under 70, would you, huh? Betty likes a slow ride"
  • willwillywillwilly Posts: 185
    edited April 2016
    m8iy0p04dsy0.jpg
    How bout this, a roll behind the tweeter horizontally, and two rolls vertically each behind the drivers. Nothing around the pr.
    Will I am
  • willwillywillwilly Posts: 185
    Black Hole 5 Discontinued but I have seen that modification somewhere
    Will I am
  • NightfallNightfall Posts: 9,112
    afterburnt wrote: »
    They didn't speak a word of English, they were from South Carolina.

    Village Idiot of Club Polk
  • willwillywillwilly Posts: 185
    F1nut wrote: »
    willwilly wrote: »
    Weak, old plastic with new seal bends and one hole cracked. Larry's ring for the crossover?
    t3mky00j2p6w.jpg

    What are you using for the seal?

    1/8" tape from parts express
    Will I am
  • willwillywillwilly Posts: 185
    Finishing the JB weld job with clear weld on the bottom edge. Top edge was already done with the gray JB Weld.
    p3hpp96ki1j5.jpg
    t1t9zv79fa3r.jpg
    Will I am
  • F1nutF1nut Posts: 44,797
    willwilly wrote: »
    m8iy0p04dsy0.jpg
    How bout this, a roll behind the tweeter horizontally, and two rolls vertically each behind the drivers. Nothing around the pr.

    Will, read westmassguy's description of where and how the material goes.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • willwillywillwilly Posts: 185
    Man, those are gorgeous. It would almost be a sin to put a grill on them.
    BTW, the originals had a front to back brace between the two woofers, starting at the bottom of the woofer opening, running vertically to just below the tweeter opening.
    A roll of Dacron was stuffed horizontally behind the tweeter. A second roll, cut like a pair of pants, was inserted behind the woofer openings, with a flap at the bottom.
    That's what I did...
    Will I am
  • F1nutF1nut Posts: 44,797
    Ah, ok. This is what I saw, "Since you didn't put in a center brace between the woofer openings, you can do two rolls, side by side. The rolls should be long enough to go from the bottom of the woofer openings to the very top behind the tweeter."

    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • F1nutF1nut Posts: 44,797
    Just thinking out loud here. It's been a long time since I've seen the inside of a Monitor 10, but I do recall what the inside of a Monitor 11 looks like and based on what westmassguy said about the center brace they seem to be the same layout. So, I believe Polk used the vertical center brace to help keep the backwaves of the two mids as separate as possible.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • willwillywillwilly Posts: 185
    Well then I have my crossover in the wrong place which is possible since I didn't ask...
    My cross over is between the tweeter and drivers. Putting in a baffle isn't an option. I could add a baffle glued to the front but only extend 3" towards the back.
    Will I am
  • westmassguywestmassguy Posts: 6,668
    willwilly wrote: »
    Well then I have my crossover in the wrong place which is possible since I didn't ask...
    My cross over is between the tweeter and drivers. Putting in a baffle isn't an option. I could add a baffle glued to the front but only extend 3" towards the back.
    I'd be more worried about the proximity of the inductors on the crossover to the magnetic fields coming from the drivers.

    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
    Cables: Speaker: Furez 10/2 with GLS Locking Banana Plugs
    Interconnect: Furez 10/2 with SpeakONs
    ICs: Custom Furez by Douglas Connections
    Den:
    Bose 901 Series II Continentals Restored, Re-Built Equalizer with Elna Silmic IIs, Sonicaps, and Silver Mica Caps
    Carver CT-3 Pre, Carver C-500

    dhsspeakerservice.com/
    Exclusive Distributor of Gimpod's Custom SDA Circuit Boards

    "And keep her under 70, would you, huh? Betty likes a slow ride"
  • willwillywillwilly Posts: 185
    Not me, inverse of distance cubed. Until I see data of significant changes in induction based on real world applications, I'll stick with basic physics. I'm not denying there is an effect, just not a significant effect...
    Will I am
  • NightfallNightfall Posts: 9,112
    If I am not mistaken all the Monitor's have their crossovers as a part of the binding cup which is on the bottom back center of the speaker, behind the passive.
    afterburnt wrote: »
    They didn't speak a word of English, they were from South Carolina.

    Village Idiot of Club Polk
  • willwillywillwilly Posts: 185
    Yup, that's not where I have mine... just the opposite, oh well...
    Will I am
  • willwillywillwilly Posts: 185
    Just a few more details.
    47fb7mthqq0b.jpg
    Will I am
  • willwillywillwilly Posts: 185
    edited April 2016
    Ok, let's talk black hole baffles? I'm concerned with not having the front to back piece between the drivers. Unfortunately I have the crossover too high so the front to back baffle can only go as high as the mid points of the drivers.
    I have seen adding block hole panels behind the drivers is a significant improvement.
    Has anyone done this to 10's?
    hlhmw3v9o5ko.jpg

    Will I am
  • MrBuhlMrBuhl Posts: 2,427
    I don't know how I missed this build, but the cabinets are outstanding! Very nice looking work indeed.
    VA HT HK AVR20II, Sony S9000ES CD/DVD/SACD, Polk Audio RC80i / Polk Audio CSi3, 60" Panasonic Plasma, Nordost / Signal Cable A2 / Wireworld / Pangea / Magic Power
    VA 2 Channel Focal Electra 926 speakers, Pass Labs X150.5 Amp, Eastern Electric MiniMax Preamp (Tutay mods), Eastern Electric Minimax CDP (Scott Nixon mods), Music Hall mmf 5.1 Turntable, Parks Audio Budgie Phono Pre , Audioengine B1 streamer, MIT S3 IC's / MIT Shotgun S3 Speaker Cables / PS Audio power cables
    Noggin Schiit Valhalla, Pangea, Phillips Fidelio X1, Polk UF8000

    Polk SDA1c modded
    Polk CRS+ 4.1TL modded (need veneer)
    Polk SDA2BTL (fully modded)
    A/L 1000VA Dreadnought Canare 4s11 SDA cable
    SACD Marantz DV8300
    Sony S9000ES CD/DVD/SACD
    Yamaha YP-D6
    Soundcraftsmen PCR800
    Audible Illusions L1 Preamp
    Vincent MFA based Cocci Tube Preamp
    Pho-700 Phono Pre
    Signal Cable Silver Resolution IC's






  • willwillywillwilly Posts: 185
    I have been researching the internal "brace" on the 10's. It appears after looking at video of the inside, this is more of a brace than a baffle. I'm going to add this brace that will go from the back to the front between the drivers to above the pr. My brace will be made from 1" MDF 3" wide and 10" long.
    Will I am
  • NightfallNightfall Posts: 9,112
    What about the crossover and the binding cup hole?
    afterburnt wrote: »
    They didn't speak a word of English, they were from South Carolina.

    Village Idiot of Club Polk
  • willwillywillwilly Posts: 185
    I'll be under it. The brace won't go up to the tweeter since the cup is there.
    Will I am
  • F1nutF1nut Posts: 44,797
    willwilly wrote: »
    I have been researching the internal "brace" on the 10's. It appears after looking at video of the inside, this is more of a brace than a baffle. I'm going to add this brace that will go from the back to the front between the drivers to above the pr. My brace will be made from 1" MDF 3" wide and 10" long.

    Ok, that makes sense as the Monitor 11 was an improved Monitor 10 whereas Polk realized the combing issue inherent to having two mids side by side playing the same frequencies and corrected that in the 11's.

    As for the magnet/inductor issue, add bucking magnets to the mids and tweeter to cancel out the magnetic field, problem solved.

    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

  • willwillywillwilly Posts: 185
    edited April 2016
    Since one of my MW6503'S locked up and I'm not ready to learn how to repair properly, I have spoken with Polk for a new set. Polk won't have stock until June.
    I have a 6510 for a temporary replacement. I have seen the specs and understand the differences.
    Resistance is the same. My only question is, any problem with running a 10 and 03 together minus sound quality.
    Post edited by willwilly on
    Will I am
  • willwillywillwilly Posts: 185
    edited April 2016
    Prepping my 6510 for installation. This looks to be in good condition. I cleaned the cone and face of the speaker with a cleaner degreaser. I know if I mention what brand I used we'll start a whole new conversation.
    Just don't use alcohol or petroleum distillant as I'm sure this would remove the coating or damage the surround.
    I'm epoxying in the magnet, both sides, and adding dampening on the cage. New foam seal and punched screw wholes.
    3tdlfmtvpvps.jpg
    By the way, cut the end off the q-tip and just use the stick to stir and apply the epoxy. The cotton just makes a mess of things.
    jwur0uh8ux3j.jpg
    gvl1vrbbuun4.jpg
    khmakj9dftja.jpg
    ouqrsyufpeze.jpg
    osxb89xz93cm.jpg
    Will I am
  • willwillywillwilly Posts: 185
    Arg! I have been testing and the left tweeter stopped working. It is in the cross over. So, I'm going to have to diagnosis the problem. Anything obvious I need to look at first?
    Will I am
  • F1nutF1nut Posts: 44,797
    Loose connector.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."


    President of Club Polk

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