Monitor 7B crossover Up grade Pics

nikolas812
nikolas812 Posts: 2,915
edited April 2013 in Vintage Speakers
Jeff came down this weekend so I could help him Mod is XO's on his Minty Monitor 7B's. A few brews were consumed and some tunes listened to. The XO's turned out great and we a had a good time to boot. We also added some Vampire Binding posts while we were at it.

We used Sonicaps on the highs. Solens On the Lows. And mills resistors.

Let us know of the changes when you get a chance Jeff.




Nik



[URL="[IMG]http://i272.photobucket.com/albums/jj162/nikolas812/Picture100.jpg[/IMG]"]Picture100.jpg[/URL]
[URL="[IMG]http://i272.photobucket.com/albums/jj162/nikolas812/Picture101-1.jpg[/IMG]"]Picture101-1.jpg[/URL]
[URL="[IMG]http://i272.photobucket.com/albums/jj162/nikolas812/Picture105-1.jpg[/IMG]"]Picture105-1.jpg[/URL]
[URL="[IMG]http://i272.photobucket.com/albums/jj162/nikolas812/Picture109-1.jpg[/IMG]"]Picture109-1.jpg[/URL]
[URL="[IMG]http://i272.photobucket.com/albums/jj162/nikolas812/Picture108-1.jpg[/IMG]"]Picture108-1.jpg[/URL]
Post edited by nikolas812 on
· Share on FacebookShare on Twitter
«1

Comments

  • Crazylitvak
    Crazylitvak Posts: 38
    edited February 2010
    Did you use the "Solen 35.0mfd Metallized Polypropylene Capacitor, PB Series 400Vdc"?
    and the Sonicap 12uf?
    · Share on FacebookShare on Twitter
  • Crazylitvak
    Crazylitvak Posts: 38
    edited February 2010
    Any reason you didn't use the Sonicaps for both capacitors?
    · Share on FacebookShare on Twitter
  • nikolas812
    nikolas812 Posts: 2,915
    edited February 2010
    Crazylitvak wrote: »
    Any reason you didn't use the Sonicaps for both capacitors?

    Price!






    Nik
    · Share on FacebookShare on Twitter
  • nikolas812
    nikolas812 Posts: 2,915
    edited February 2010
    Crazylitvak wrote: »
    Did you use the "Solen 35.0mfd Metallized Polypropylene Capacitor, PB Series 400Vdc"?
    and the Sonicap 12uf?




    Yes.





    Nik
    · Share on FacebookShare on Twitter
  • concealer404
    concealer404 Posts: 7,440
    edited February 2010
    Who's Jeff?
    I don't read the newsssspaperssss because dey aaaallllllllll...... have ugly print.

    Living Room: B&K Reference 5 S2 / Parasound HCA-1000A / Emotiva XDA-2 / Pioneer BDP-51FD / Paradigm 11se MKiii

    Desk: Schiit Magni 2 Uber / Schiit Modi 2 Uber / ISK HD9999

    Office: Schiit Magni 2 Uber / Schiit Modi 2 Uber / Dynaco SCA-80Q / Paradigm Legend V.3

    HT: Denon AVR-X3400H / Sony UBP-X700 / RT16 / CS350LS / RT7 / SVS PB1000
    · Share on FacebookShare on Twitter
  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited February 2010
    Looks nice!! I'm planning on doing this to my 7A's sometime soon. Those are some nice looking 7B's!

    concealer404 wrote: »
    Who's Jeff?

    +1?
    The nirvana inducer-
    APC H10 Power Conditioner
    Marantz UD5005 universal player
    Parasound Halo P5 preamp
    Parasound HCA-1200II power amp
    PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Speaker Cables and IC's
    · Share on FacebookShare on Twitter
  • leroyjr1
    leroyjr1 Posts: 8,785
    edited February 2010
    Looking good!!!!!
    · Share on FacebookShare on Twitter
  • Crazylitvak
    Crazylitvak Posts: 38
    edited February 2010
    Just last year, I replaced the caps in my monitor 7's with Bennic caps. It was a huge improvement in sound. Now I'm salivating at movin up to the Sonicaps and wonder how much more difference they will provide?
    Any ideas or experience on this?
    · Share on FacebookShare on Twitter
  • anton.chigurh
    anton.chigurh Posts: 239
    edited February 2010
    NICE pics Nick. Thanks for starting this thread.

    Nick spent his whole Sat. with me looking over his shoulder (beer breath and all)
    firing away questions. I appreciate you helping me out. You did a great job and a very good learning experience for me. Plus....I got to hear some tubes this time. Somebody has a sweet **** amp coming their way.

    Only wish I had time to dominate in some xbox 360.

    I know they've only got about 20hrs on them....but I think they sound great already. Some improved bass for sure. I'll keep you posted.
    · Share on FacebookShare on Twitter
  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited February 2010
    anton.chigurh wrote: »
    NICE pics Nick. Thanks for starting this thread.

    Nick spent his whole Sat. with me looking over his shoulder (beer breath and all)
    firing away questions. I appreciate you helping me out. You did a great job and a very good learning experience for me. Plus....I got to hear some tubes this time. Somebody has a sweet **** amp coming their way.

    Only wish I had time to dominate in some xbox 360.

    I know they've only got about 20hrs on them....but I think they sound great already. Some improved bass for sure. I'll keep you posted.


    Are you Jeff!?:confused:


    Just curious.
    The nirvana inducer-
    APC H10 Power Conditioner
    Marantz UD5005 universal player
    Parasound Halo P5 preamp
    Parasound HCA-1200II power amp
    PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Speaker Cables and IC's
    · Share on FacebookShare on Twitter
  • JohnLocke88
    JohnLocke88 Posts: 1,150
    edited February 2010
    comfortablycurt wrote: »
    Are you Jeff!?:confused:


    Just curious.

    Sounds like it.
    · Share on FacebookShare on Twitter
  • anton.chigurh
    anton.chigurh Posts: 239
    edited February 2010
    comfortablycurt wrote: »
    Are you Jeff!?:confused:
    concealer404 wrote: »
    Who's Jeff?

    Yep...I'm Jeff. Sorry....meant to include my name in the signature with my last post.
    comfortablycurt wrote: »
    Looks nice!! I'm planning on doing this to my 7A's sometime soon. Those are some nice looking 7B's!

    Thanks Curt. I plan on keepin these for a for a while...so it had to be done. Now maybe I'll have the confidence to try doing my 5As by myself down the road.

    Jeff
    · Share on FacebookShare on Twitter
  • concealer404
    concealer404 Posts: 7,440
    edited February 2010
    Ah ok... That's a VERY nice pair of 7s you have. I want to get my ears on them, hopefully i can remember what my old 7Cs sounded like. :) Enjoy!
    I don't read the newsssspaperssss because dey aaaallllllllll...... have ugly print.

    Living Room: B&K Reference 5 S2 / Parasound HCA-1000A / Emotiva XDA-2 / Pioneer BDP-51FD / Paradigm 11se MKiii

    Desk: Schiit Magni 2 Uber / Schiit Modi 2 Uber / ISK HD9999

    Office: Schiit Magni 2 Uber / Schiit Modi 2 Uber / Dynaco SCA-80Q / Paradigm Legend V.3

    HT: Denon AVR-X3400H / Sony UBP-X700 / RT16 / CS350LS / RT7 / SVS PB1000
    · Share on FacebookShare on Twitter
  • gcstokes1
    gcstokes1 Posts: 56
    edited February 2010
    I am in the process of doing the same, waiting on a replacement MW6500. I chose Daytons for this modification. Can anyone comment on their sound?
    · Share on FacebookShare on Twitter
  • ben62670
    ben62670 Posts: 15,969
    edited February 2010
    Nice job Nik
    gcstokes1 wrote: »
    I am in the process of doing the same, waiting on a replacement MW6500. I chose Daytons for this modification. Can anyone comment on their sound?

    The Dayton's are much more neutral than the Solen's. Sonicaps are more revealing. Also look into the Clarity caps at madisound.
    Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
    · Share on FacebookShare on Twitter
  • gcstokes1
    gcstokes1 Posts: 56
    edited February 2010
    The Dayton's are much more neutral than the Solen's. Sonicaps are more revealing. Also look into the Clarity caps at madisound.
    Ben[/QUOTE]

    My experience with the Solen goes back to a re-cap on a pair of large Advents, I found them very bright in that application, and changed them out for the Daytons. I must say though that I probably did not give the proper hours of "burn in". Perhaps I will give them a second chance.
    · Share on FacebookShare on Twitter
  • ben62670
    ben62670 Posts: 15,969
    edited February 2010
    gc the Solen's never warmed up.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
    · Share on FacebookShare on Twitter
  • nikolas812
    nikolas812 Posts: 2,915
    edited February 2010
    Your welcome Jeff! It was a pleasure doing it for ya. And I look forward to your next visit... BRING MORE UPLANDS!!!

    Get some hours on them and report back to us.




    Nik





    anton.chigurh wrote: »
    NICE pics Nick. Thanks for starting this thread.

    Nick spent his whole Sat. with me looking over his shoulder (beer breath and all)
    firing away questions. I appreciate you helping me out. You did a great job and a very good learning experience for me. Plus....I got to hear some tubes this time. Somebody has a sweet **** amp coming their way.

    Only wish I had time to dominate in some xbox 360.

    I know they've only got about 20hrs on them....but I think they sound great already. Some improved bass for sure. I'll keep you posted.
    · Share on FacebookShare on Twitter
  • Texun2
    Texun2 Posts: 10
    edited January 2012
    My husband recapped my 7b's last weekend and they are great. He used Sonicaps and Mills
    · Share on FacebookShare on Twitter
  • audiocr381ve
    audiocr381ve Posts: 2,588
    edited January 2012
    Texun2 wrote: »
    My husband recapped my 7b's last weekend and they are great. He used Sonicaps and Mills

    Lol, thank you for letting us know! hahahahaha
    · Share on FacebookShare on Twitter
  • racingkaherva
    racingkaherva Posts: 29
    edited April 2013
    Super-late to this thread, but did you change the inductor? It appears to be different.
    · Share on FacebookShare on Twitter
  • StantonZ
    StantonZ Posts: 444
    edited April 2013
    Thanks for posting pics. Might give me some motivation for upgrading mine...
    Yamaha RX-A2050 AVR (5.0.2); LG OLED77C2 4K TV
    (4) Polk Monitor 10B's w/SoniCaps, Mills, and RDO-194 tweets (R/L F/R)
    (2) Polk RC80i (Top Middle)
    Polk CS300 center channel
    Analog: B&O TX2 Turntable, Nakamichi Cassette Deck 1
    Digital: Pioneer CLD-99 Elite LD, Panasonic DMP-UB900 UHD Blu-Ray
    Bedroom: Arylic Up2Stream AMPv3 driving Polk Monitor 4's w/peerless tweets
    · Share on FacebookShare on Twitter
  • bgymnastics
    bgymnastics Posts: 1
    I need to do my 7b soon where can I find these parts. And what exact ones will I need. Sorry if this is already been posted somewhere I,m very new to this.
    Thank you
    · Share on FacebookShare on Twitter
  • anton.chigurh
    anton.chigurh Posts: 239
    As mentioned above, we used Solen 35.0mfd from Parts Express for the mids to minimize cost.
    I also ordered the items below from Sonic Craft (cut and pasted from an old email....complete with 2010 pricing).

    Thanks for resurrecting this old thread. Can't believe it was 7 yrs ago. Nik buddy if you're reading this..these babies are still singing. Thanks to Larry they will also be getting rings and tweeter brackets very soon. Thanks again Nik and Larry.


    Capacitors, Sonicap Gen 1 12µF / 200VDC... I need (2) at $20.45ea.
    Resistors, Mills 2.7 ohm, MRA-12 ............ I need (2) at $3.98ea.
    Mills 4.5 ohm, MRA-12 .............. I need (2) at $3.85ea.
    Binding Posts, Vampire BP1.5HEX.............. I need (2) at $14.35ea.
    · Share on FacebookShare on Twitter
  • hippierecords
    hippierecords Posts: 7
    I am about to do the same to my 7B's. Did you not replace the 34uf cap? Anyone have an updated parts list. Not to mess with perfection just curious if there was anything more current. Do dayton caps compare to the Sonicap's? I would like to get all from parts express.
    · Share on FacebookShare on Twitter
  • xschop
    xschop Posts: 5,000
    Has anyone actually measured the inductor values for the 7B?
    Don't take experimental gene therapies from known eugenicists.
    · Share on FacebookShare on Twitter
  • F1nut
    F1nut Posts: 50,546
    hippierecords wrote: »
    I am about to do the same to my 7B's. Did you not replace the 34uf cap? Anyone have an updated parts list. Not to mess with perfection just curious if there was anything more current. Do dayton caps compare to the Sonicap's? I would like to get all from parts express.

    No, they don't compare. Sonic Craft has everything you need and it's on sale right now. Before you order, confirm what you need by looking at the crossovers as Polk often made changes on the fly.
    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

    · Share on FacebookShare on Twitter
  • F1nut
    F1nut Posts: 50,546
    xschop wrote: »
    Has anyone actually measured the inductor values for the 7B?

    For the 7B with the 2.7 and 4.5 ohm resistors? No.
    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

    · Share on FacebookShare on Twitter
  • xschop
    xschop Posts: 5,000
    The enigma ensues.
    Don't take experimental gene therapies from known eugenicists.
    · Share on FacebookShare on Twitter
  • hippierecords
    hippierecords Posts: 7
    hb0073ma3j1c.jpg
    j4lipmasx759.jpg
    adas04rvu6al.jpg

    That is the crossover. Can someone please give the part numbers i need to order. I have never recapped crossovers before. I just want to make sure I order quality and correctly. So experts help me out :smile:
    · Share on FacebookShare on Twitter