Polk Audio CRS (Original) Crossover Modification Thread

VR3
VR3 Posts: 28,741
Tweeter Network -
Clarity Cap ESA
Mills MRC50 and Mundorf M Resist Supreme
Jantzen Inductors
Kimber Kable Internal Wiring

Midbass/SDA Network -
Clarity Cap ESA
Jantzen Inductors
Kimber Kable Internal Wiring

Lexan substrate, point to point wiring
Aluminum terminal plate, kimber kable wiring harness
Kimber Kable SDA Cable34ovmpp7188h.jpg
6iift1qjrolq.jpg
- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.

Comments

  • EndersShadow
    EndersShadow Posts: 17,593
    Nice! 8 or 4 PR Trey?
    "....not everything that can be counted counts, and not everything that counts can be counted." William Bruce Cameron, Informal Sociology: A Casual Introduction to Sociological Thinking (1963)
  • VR3
    VR3 Posts: 28,741
    I believe it is the 4PR.

    I like it but I have to admit bringing four wires together to make a single connection is a little tedious... :smiley:
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
  • VR3
    VR3 Posts: 28,741
    Ah, the original SDA crossovers are so much fun :p. I use two small pieces of foam tape on the edges of the caps up top so you can still read the labels :)90gfd0bzehbn.jpg
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
  • drumminman
    drumminman Posts: 3,396
    Room is tight in those little cabinets, and that looks quite large. Interested to see how you fit and orient those boards.
    "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
  • VR3
    VR3 Posts: 28,741
    Designed it to attach in front of the terminal cut out. We are going to use stand offs and run the wiring through the gap.

    The unit is not as big as you think, it is 3.5" tall, 4" wide, 10" tall
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
  • VR3
    VR3 Posts: 28,741
    Designed it to attach in front of the terminal cut out. We are going to use stand offs and run the wiring through the gap.

    The unit is not as big as you think, it is 3.5" tall, 4" wide, 10" tall
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
  • Moose68Bash
    Moose68Bash Posts: 3,843
    Trey,

    You've done it again!

    Great looking work -- technology married with fine art! :)

    Phil
    Family Room, Innuos Statement streamer (Roon Core) with Morrow Audio USB cable to McIntosh MC 2700 pre with DC2 Digital Audio Module; AQ Sky XLRs to CAT 600.2 dualmono amp, Morrow Elite Speaker Cables to NOLA Baby Grand Reference Gold 3 speakers. Power source for all components: Silver Circle Audio Pure Power One with dedicated 20 amp circuit to main panel.

    Exercise Room, Innuos Streamer via Cat 6 cable connection to PS Audio PerfectWave MkII DAC w/Bridge II, AQ King Cobra RCAs to Perreaux PMF3150 amp (fully restored and upgraded by Jeffrey Jackson, Precision Audio Labs), Supra Rondo 4x2.5 Speaker Cables to SDA 1Cs (Vr3 Mods Xovers and other mods.), Dreadnaught with Supra Rondo 4x2.5 interconnect cables by Vr3 Mods. Power for each component from dedicated 20 amp circuit to main panel, except Innuos Statement powered from Silver Circle Audio Pure Power One.

  • Faustin
    Faustin Posts: 1,149
    Beautiful work. If I didn't know better, I would be looking for the button to detonate it.lol
  • VR3
    VR3 Posts: 28,741
    Thank you guys! I appreciate the kind remarks!

    This was an interesting build, the older SDA speakers were so different than the models that followed... :pcdv51axsruzs.jpg
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.