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

Vist our Online Store
+ Reply to Thread
Results 1 to 13 of 13
  1. #1

    Member Sales Rating: (0)

    Join Date
    Jun 2008
    Location
    Morgan City, LA.
    Posts
    9

    Default How much is to be gained by replacing Monitor x-overs, etc?

    Hi guys!

    I have a very modest system (as a college student) consisting of a pair of 1986 Monitor 5B speakers, an NAD 3020 integrated, Harmon Kardon CD player and a Pro-ject Debut turntable. I upgraded to my Polk speakers from an early 1970s pair of Bose 301s and really started to enjoy music.

    My 5Bs sound immensely better than the Bose speakers and I'm very, very happy with the way they sound right now. However, I keep reading about upgrading the crossovers with new components, and even swapping the tweeters to RDO194. If if decide to go through with the upgrades, how much of a difference do you think it would make?

    I ask because I am in NO way unhappy with the way my speakers sound, but if they could sound even better, I'll do it. :p

    Also, if I'm replacing the components in the crossover anyway, would it be better to opt for the RDO198 tweeters?

    Thanks. Justin

  2. #2

    Member Sales Rating: (11)

    Join Date
    Oct 2008
    Location
    Dixon, IL
    Posts
    6,519

    Default

    I don't think you'd be able to use the RD0198's without doing some fairly extensive modifications to the crossovers.

    The 194's are some nice sounding tweeters. FWIW, I'd do the tweeters before the XO's.
    The nirvana inducer-
    APC H10 Power Conditioner
    Denon DVD-2910 universal player
    DPA The Little Bit Three DAC
    Yamaha P-300 turntable/TCC TC-750 phono preamp
    Acurus L10 preamp
    Adcom GFA-545 power amp
    PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Type 4 speaker cables
    Audioquest Sidewinder IC's
    Audioquest Black Mamba IC's
    Signal Cable Analog II IC's

  3. #3

    Member Sales Rating: (0)

    Join Date
    Jun 2008
    Location
    Morgan City, LA.
    Posts
    9

    Default

    Quote Originally Posted by comfortablycurt View Post
    I don't think you'd be able to use the RD0198's without doing some fairly extensive modifications to the crossovers.

    The 194's are some nice sounding tweeters. FWIW, I'd do the tweeters before the XO's.
    Wow, that was fast. But that's interesting, because it seems like almost everyone I talk to seems to claim that the caps will go bad after a couple decades.

    I'm pretty comfortable with refurbishing electronics (sometimes just for fun.) I'll usually go around to garage sales and buy vintage equipment and fix them up.

    My ear, however, isn't that great. I've been playing drums for about 15 years now so my hearing isn't the best as far as picking up inaccuracies or "weak" spots in music.

    I do have a good ear for discerning what sounds good and what sounds bad, though.

  4. #4

    Member Sales Rating: (0)

    Join Date
    May 2009
    Location
    Edmonds, WA
    Posts
    1,726

    Default

    I have heard apair of 5's with the upgraded cap and tweeters and I have to say they where very detailed, say a 200% improvement, sounded amazing.
    As far as the tweeter change, I am considering that on mine and to me, it does not seem that much work. Just look to the Mon 5 series II with the SL3000 wiring diagram in the Vintage speaker section.
    http://www.polkaudio.com/forums/atta...7&d=1155784608

  5. #5

    Member Sales Rating: (0)

    Join Date
    Jun 2008
    Location
    Morgan City, LA.
    Posts
    9

    Default

    Quote Originally Posted by kcoc321 View Post
    I have heard apair of 5's with the upgraded cap and tweeters and I have to say they where very detailed, say a 200% improvement, sounded amazing.
    As far as the tweeter change, I am considering that on mine and to me, it does not seem that much work. Just look to the Mon 5 series II with the SL3000 wiring diagram in the Vintage speaker section.
    http://www.polkaudio.com/forums/atta...7&d=1155784608
    Wow. I know things like this are subjective, but if it is that much of an improvement for about $150, I think I might just go ahead and do it. I also thought about building new enclosures (or modifying the originals.) Love these speakers!

  6. #6

    Member Sales Rating: (7)

    Join Date
    Feb 2007
    Posts
    3,331

    Default

    Just re-build them and thank us later. Do a few searches and see some of the work done by fellow members on their 5's. As I remember one of the fellow members show exactly what and how to that x-over.

  7. #7

    Member Sales Rating: (16)

    Join Date
    Mar 2005
    Location
    In A Van Down By The River
    Posts
    21,191

    Default

    Just do it. You can use Clarity Caps "PX" series which are an excellent sounding budget capacitor. And get the RD0194-1, you can't use the RD0198-1. For less than $150 and little of your time you will be amazed at the improvement.

    The avg life expectancy of an electrolytic cap is about 12 years give or take and based on use. So, yes the caps are at the end of their useful lifecycle.

    here you go:

    http://www.polkaudio.com/forums/show...hlight=upgrade

    H9
    Last edited by heiney9; 11-10-2009 at 02:27 PM.
    "Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass

    Pass Aleph 30; Eastern Electric Mini Max; Adcom GDA600; MIT S3/Z Pc; SDA 1C; Squeezebox; Tubes add soul!

  8. #8

    Member Sales Rating: (7)

    Join Date
    Feb 2007
    Posts
    3,331

    Default

    Quote Originally Posted by heiney9 View Post
    Just do it. You can use Clarity Caps "PX" series which are an excellent sounding budget capacitor. And get the RD0194-1, you can't use the RD0198-1. For less than $150 and little of your time you will be amazed at the improvement.

    The avg life expectancy of an electolytic cap is about 12 years give or take and based on use. So, yes the caps are at the end of their useful lifecycle.

    here you go:

    http://www.polkaudio.com/forums/show...hlight=upgrade

    H9
    You sure make it easy for them!!

  9. #9

    Member Sales Rating: (31)

    Join Date
    Feb 2007
    Location
    Long Island
    Posts
    14,738

    Default

    Depending on the parts used and the associated gear, it can be a night and day difference.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

  10. #10

    Member Sales Rating: (0)

    Join Date
    May 2009
    Location
    Edmonds, WA
    Posts
    1,726

    Default

    Quote Originally Posted by jbarbier View Post
    Wow. I know things like this are subjective, but if it is that much of an improvement for about $150, I think I might just go ahead and do it. I also thought about building new enclosures (or modifying the originals.) Love these speakers!
    As addition to the x-over, the ones I heard also had additional internal damping, Mortite and some internal dowels added for support. Geoff (in SEA) did them. I "think" there was a thread about them here. I'll look later if you can't find it.

  11. #11

    Member Sales Rating: (7)

    Join Date
    Feb 2007
    Posts
    3,331

    Default

    Just remember too much additional support/bracing is not good.

  12. #12

    Member Sales Rating: (31)

    Join Date
    Feb 2007
    Location
    Long Island
    Posts
    14,738

    Default

    Quote Originally Posted by NJPOLKER View Post
    Just remember too much additional support/bracing is not good.
    I don't believe that to be true. An enclosure should not resonate with drivers, it adds coloration and takes away from imaging.
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

  13. #13

    Member Sales Rating: (7)

    Join Date
    Feb 2007
    Posts
    3,331

    Default

    Quote Originally Posted by Face View Post
    I don't believe that to be true. An enclosure should not resonate with drivers, it adds coloration and takes away from imaging.
    I think you are wrong. Do you want to take one guess as to how I know your wrong?





    Nope






    Jesse said so :)

Thread Information

Users Browsing this Thread

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

     

Similar Threads

  1. Monitor 7C: replacing SL1000 with Peerless tweeters
    By average_guy in forum Basic Hookup/Wiring Questions
    Replies: 2
    Last Post: 03-05-2009, 03:22 PM
  2. Tweaking 5b x-overs
    By heiney9 in forum DIY, Mods & Tweaks
    Replies: 4
    Last Post: 07-04-2007, 09:16 PM
  3. replacing push in terminals on monitor 4.6
    By catzcradle in forum Troubleshooting
    Replies: 3
    Last Post: 03-23-2006, 11:35 AM
  4. x-overs??
    By frankg702 in forum Car Audio & Electronics
    Replies: 1
    Last Post: 03-23-2005, 08:34 PM
  5. Cross Overs
    By Pauly in forum Flea Market
    Replies: 1
    Last Post: 07-30-2004, 06:56 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