Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 7 of 7
  1. #1

    Member Sales Rating: (0)

    Join Date
    May 2009
    Location
    Plano, TX
    Posts
    271

    Default Completed XO Rebuild/Upgrade on First Pair of 10B's

    ...and it was a b*tch (picture attached)! Swapping the parts out wasn't so bad (even thought there's some creativity involved in cramming the huge SoniCaps onto a small board), but detaching/re-attaching the XO board onto the backing structure was basically a 2 man job (that's why we have kids, right?). I have one more pair to go, and to my amazement the second pair is VERY different (my 2 pairs of 10B's were bought 4 years apart); however, it looks like the removal/replacement of the XO board won't be quite as bad on the second pair.

    Long story short, when I hooked them up, one speaker came up fine and the other didn't (lacked bass). I discovered I had lifted one of the pads for the inductor and ended up soldering that lead to the (+) lead (good thing there were multiple connections on that node). The "muddiness" I was experiencing in one of my speakers is gone and they already sound "tighter" than what I had. I can only hope they'll last for the $$ I put into them (I replaced the tweets with RDO-194's a few months ago). BTW, the suggestion to replace the polyswitch with a .5 Ohm resistor was a good one: both polyswitches measured about .7 Ohms after removal, and I like how my high-end sounds now.
    Attached Images  
    Yamaha DSP-A1 Integrated Amp
    (4) Polk Monitor 10B's w/SoniCaps, Mills, and RDO-194 tweets (R/L F/R)
    (2) Polk Monitor 4's w/peerless tweets (dual centers)
    B&O TX2 Turntable
    Nakamichi Cassette Deck 1
    Pioneer CLD-99 Elite LD
    Samsung BD-P2550 Blu-Ray/DVD
    LG LST-3410a OTA DVR
    Princeton AF3.0HD Monitor
    Optoma HD65 Projector

  2. #2

    Member Sales Rating: (0)

    Join Date
    Jun 2012
    Location
    Pearland Texas 77584
    Posts
    1,998

    Default

    Good job that vertical cap looks like a beast.

  3. #3

    Member Sales Rating: (0)

    Join Date
    Aug 2011
    Location
    A place called Winnipeg
    Posts
    2,860

    Default

    What kind of wire did you use to connect the cap with the board? Looks like a piece of 24awg Cat5/6.

  4. #4

    Member Sales Rating: (0)

    Join Date
    Mar 2005
    Posts
    198

    Default

    half of pair 1?

  5. #5

    Member Sales Rating: (22)

    Join Date
    Oct 2008
    Location
    Directly over the center of the earth in Olathe Kansas
    Posts
    5,825

    Default

    looks like the WHite blue side of telephone wire.
    Speakers: SDA-1C (most all the goodies)
    Preamp: Joule Electra LA-150 MKII SE
    Amp: Wright WPA 50-50 EAT KT88s
    Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
    Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
    Cables: Mits S3 IC and Spk cables| PS Audio PCs

    Ofc: Wright WLA12 preamp: Anthem Amp 1: Pio Elite DV-79AVI: Airport Express: CAL Sigma II DAC: PA LS90 sonicaps and mills

  6. #6

    Member Sales Rating: (0)

    Join Date
    May 2009
    Location
    Plano, TX
    Posts
    271

    Default

    Quote Originally Posted by Drenis View Post
    What kind of wire did you use to connect the cap with the board? Looks like a piece of 24awg Cat5/6.
    That's funny: I think you nailed it! I removed a few strands from cable laying around the lab because I wanted some solid wire to replace the polyfuse; once I saw it measured out @ 0.7 Ohm I figured I couldn't go wrong replacing it with a 0.5 Ohm resistor (Mills). When I realized I couldn't fit that 34 uF cap anywhere, I was glad I had the extra wire.
    Yamaha DSP-A1 Integrated Amp
    (4) Polk Monitor 10B's w/SoniCaps, Mills, and RDO-194 tweets (R/L F/R)
    (2) Polk Monitor 4's w/peerless tweets (dual centers)
    B&O TX2 Turntable
    Nakamichi Cassette Deck 1
    Pioneer CLD-99 Elite LD
    Samsung BD-P2550 Blu-Ray/DVD
    LG LST-3410a OTA DVR
    Princeton AF3.0HD Monitor
    Optoma HD65 Projector

  7. #7

    Member Sales Rating: (0)

    Join Date
    May 2009
    Location
    Plano, TX
    Posts
    271

    Default

    Finished the other set (of 2): COMPLETELY different PCB mounted in a COMPLETELY different way. I would say this set was slightly easier to remove/replace, but it still took me an entire day. There were no markings/etchings for ANYTHING, so I did one and used the other as a guide; I also had to mark the PCB with +/-/etc so I would know where to re-attach everything. Got all 4 speakers pumping on the "Star Wars: A Musical Journey" and they sound great! I'll probably watch a movie tonight.

    I'm not touching my center channel Monitor 4's (w/peerless tweets) in any way.

    Name:  IMG_8453.jpg
Views: 73
Size:  515.9 KB
    Yamaha DSP-A1 Integrated Amp
    (4) Polk Monitor 10B's w/SoniCaps, Mills, and RDO-194 tweets (R/L F/R)
    (2) Polk Monitor 4's w/peerless tweets (dual centers)
    B&O TX2 Turntable
    Nakamichi Cassette Deck 1
    Pioneer CLD-99 Elite LD
    Samsung BD-P2550 Blu-Ray/DVD
    LG LST-3410a OTA DVR
    Princeton AF3.0HD Monitor
    Optoma HD65 Projector

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. For Sale POLK TC80i in-ceiling speakers (PAIR), 1-owner, ~1.5 yo, selling due to upgrade
    By mak99 in forum For Sale (FS) Classifieds
    Replies: 0
    Last Post: 06-04-2012, 06:44 PM
  2. And so it begins SRS2 TL upgrade/rebuild
    By helipilotdoug in forum Vintage Speakers
    Replies: 17
    Last Post: 10-02-2011, 12:15 PM
  3. Need Help Adcom Rebuild/Upgrade
    By gimpod in forum Electronics
    Replies: 1
    Last Post: 07-08-2010, 07:52 PM
  4. Anyone ever upgrade a pair of RT2000's?
    By dpowell in forum DIY, Mods & Tweaks
    Replies: 1
    Last Post: 10-13-2009, 10:44 PM
  5. Completed my DIY sub
    By nebborjk in forum Subwoofer Hookup & Bass Management
    Replies: 31
    Last Post: 04-23-2004, 04:51 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts