Polk Audio CRS + (RDO198) Crossover Modification Thread

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VR3
VR3 Posts: 29,740
edited February 2018 in DIY, Mods & Tweaks
Will post some misc pics on this as the build progresses -

Specs are -

External build, custom mounting plate for the back of the speaker
Clarity Cap CMR 400v
Duelund CAST Resistors
Jantzen Inductors + C-Coil
Supra Rondo Internal Wiring
Point to point
WBT Binding Post
DH Labs Q-10 SDA Cable

p64lnm0b5p8g.jpg

- Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • gudnoyez
    gudnoyez Posts: 8,216
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    So looking forward to your illustrated progress on this.
    Home Theater
    Parasound Halo A 31 OnkyoTX-NR838 Sony XBR55X850B 55" 4K RtiA9 Fronts CsiA6 Center RtiA3 Rears FxiA6 Side Surrounds Dual Psw 111's Oppo 105D Signal Ultra Speaker Cables & IC's Signal Magic Power Cable Technics SL Q300 Panamax MR4300 Audioquest Chocolate HDMI Cables Audioquest Forest USB Cable

    2 Channel
    Adcom 555II Vincent SA-T1 Marantz SA 15S2 Denon DR-M11 Clearaudio Bluemotion SDA 2.3tl's (Z) edition MIT Terminator II Speaker Cables & IC's Adcom 545II Adcom Gtp-450 Marantz CD5004 Technics M245X SDA 2B's, SDA CRS+

    Stuff for the Head
    JD LABS C5 Headphone Amplifier, Sennheiser HD 598, Polk Audio Buckle, Polk Audio Hinge, Velodyne vPulse, Bose IE2, Sennheiser CX 200 Street II, Sennheiser MX 365

    Shower & Off the beaten path Rigs
    Polk Audio Boom Swimmer, Polk Audio Urchin B)
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  • Tony M
    Tony M Posts: 12,006
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    WOW! B)
    Most people just listen to music and watch movies. I EXPERIENCE them.

    “Anger is an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured.”
    --Mark Twain.

    “If at first you don't succeed, then skydiving definitely isn't for you.” - Steven Wright
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  • vmaxer
    vmaxer Posts: 5,123
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    Can’t wait to see the finished project.
    Pio Elete Pro 520
    Panamax 5400-EX
    Sunfire TGP 5
    Micro Seiki DD-40 - Lyra-Dorian and Denon DL-160
    PS Audio GCPH phono pre
    Sunfire CG 200 X 5
    Sunfire CG Sig 405 X 5
    OPPO BDP-83 SE
    SDA SRS 1.2TL Sonicaps and Mills
    Ctr CS1000p
    Sur - FX1000 x 4
    SUB - SVS PB2-Plus

    Workkout room:
    Sony Bravia XBR- 32-Inch 1080p
    Onkyo TX-DS898
    GFA 555
    Yamaha DVD-S1800BL/SACD
    Ft - SDA 1C

    Not being used:
    RTi 38's -4
    RT55i's - 2
    RT25i's -2, using other 2 in shop
    LSI 15's
    CSi40
    PSW 404
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  • ptrooper
    ptrooper Posts: 704
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    xxoc60dwgqop.png
    qp879j9f0kzm.png
    SDA SRS 1.2TL VR3 Duelund Monoliths<3,Lumin u2x,LHYas8 Pro+ Switch,Transparent Reference MM2 xlr,power and speaker cables.FTA Sinope SE usb...Working on it!
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  • VR3
    VR3 Posts: 29,740
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    zp1x3zc6xksk.jpg
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 29,740
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    wgcqu5jsdl5h.jpg
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Unknown
    Unknown
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  • VR3
    VR3 Posts: 29,740
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    Hasn't left this side of the pond yet, have a part for Sean coming then they ship out :)
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • ptrooper
    ptrooper Posts: 704
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    Toolfan66 wrote: »
    Where are the installation pics?

    I’ll make sure to take some pics
    SDA SRS 1.2TL VR3 Duelund Monoliths<3,Lumin u2x,LHYas8 Pro+ Switch,Transparent Reference MM2 xlr,power and speaker cables.FTA Sinope SE usb...Working on it!
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  • ptrooper
    ptrooper Posts: 704
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    Toolfan66 wrote: »
    Where are the installation pics?

    I’ll make sure to take some pics
    SDA SRS 1.2TL VR3 Duelund Monoliths<3,Lumin u2x,LHYas8 Pro+ Switch,Transparent Reference MM2 xlr,power and speaker cables.FTA Sinope SE usb...Working on it!
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  • F1nut
    F1nut Posts: 52,407
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    Be sure to take some pics. ;)
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  • VR3
    VR3 Posts: 29,740
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    dglz4pyix91l.jpg sounding tight
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Unknown
    Unknown
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  • VR3
    VR3 Posts: 29,740
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    Actually, not really. The bass is great with the drivers half towards the floor.
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 29,740
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    Ive always been surprised how the mods sound free air, when you leave the room, you can hardly tell they are free air versus in an enclosure. The bass is not as forceful or the impact but it is there.
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • honestaquarian
    honestaquarian Posts: 3,275
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    What's the reason for the caps being on the outside?
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  • VR3
    VR3 Posts: 29,740
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    They wont fit inside :) Some people also feel external crossovers sound better since they are not exposed to much vibration... ymmv
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 29,740
    edited May 2018
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    This is a close representation of what they sound like free air

    https://youtu.be/2y7Ne5n9we8
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • ptrooper
    ptrooper Posts: 704
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    Bad news ,The fedex plane carrying my xovers that Vr3 built crashed around a week ago.
    Good news though , the only two box's that were retrievable at the crash site were mine due to their packaging.
    eihrnrwq7vu9.jpg
    Im a little busy right now but i will bang some pictures up when i start the project!
    SDA SRS 1.2TL VR3 Duelund Monoliths<3,Lumin u2x,LHYas8 Pro+ Switch,Transparent Reference MM2 xlr,power and speaker cables.FTA Sinope SE usb...Working on it!
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  • ptrooper
    ptrooper Posts: 704
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    Ok. Got a lunch break in and installed these x overs. Thank you again to Trey and Dave for your excellent services
    Pictures to follow.
    Mmmmm. Cant load them from iPhone. B.B. L
    SDA SRS 1.2TL VR3 Duelund Monoliths<3,Lumin u2x,LHYas8 Pro+ Switch,Transparent Reference MM2 xlr,power and speaker cables.FTA Sinope SE usb...Working on it!
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  • Unknown
    Unknown
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  • VR3
    VR3 Posts: 29,740
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    I've seen pics, they look like terminators
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • VR3
    VR3 Posts: 29,740
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    ckvo2e0tnq4k.jpeg
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • ptrooper
    ptrooper Posts: 704
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    p16kyuh75vp1.jpg
    2bno34ribkhs.jpg
    ms204j70kguk.jpg
    ba05p10cjd87.jpg
    fo7e1oxprz6y.jpg
    tkn6dut5uvb3.jpg
    ytb4u3f80b28.jpg
    hxznp0ykbcj6.jpg
    ew7j183prnog.jpg
    drg9k4wibhqn.jpg
    SDA SRS 1.2TL VR3 Duelund Monoliths<3,Lumin u2x,LHYas8 Pro+ Switch,Transparent Reference MM2 xlr,power and speaker cables.FTA Sinope SE usb...Working on it!
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  • ptrooper
    ptrooper Posts: 704
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    the stands slightly modified from Larry's specs so as to not breech copyrights .19 kilo's of lead shotw2c1t5h99ncm.jpg
    tfmtfe80b7he.jpg
    s83hq5uhjnm0.jpg
    SDA SRS 1.2TL VR3 Duelund Monoliths<3,Lumin u2x,LHYas8 Pro+ Switch,Transparent Reference MM2 xlr,power and speaker cables.FTA Sinope SE usb...Working on it!
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  • ptrooper
    ptrooper Posts: 704
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    unlm5ag4g9g1.jpg
    SDA SRS 1.2TL VR3 Duelund Monoliths<3,Lumin u2x,LHYas8 Pro+ Switch,Transparent Reference MM2 xlr,power and speaker cables.FTA Sinope SE usb...Working on it!
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  • ptrooper
    ptrooper Posts: 704
    edited August 2018
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    The Notorious Larry's Rings. I find them to be even better after glueing them in, more so in the SRS's.I just wiped power grab along the edge internally making sure that none enters the threaded area.....so how many inch's of steel are in the SRS'S installed with theses rings..? I lovem.
    SDA SRS 1.2TL VR3 Duelund Monoliths<3,Lumin u2x,LHYas8 Pro+ Switch,Transparent Reference MM2 xlr,power and speaker cables.FTA Sinope SE usb...Working on it!
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  • westmassguy
    westmassguy Posts: 6,850
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    Very nice Sean! Enjoy them!
    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

    dhsspeakerservice.com/
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  • F1nut
    F1nut Posts: 52,407
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    I see you got the labels off.

    Those look bada$$.
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  • xschop
    xschop Posts: 5,811
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    I thought the factory enclosures could possibly benefit from a front to back cross-brace. Will you reinforce the area you cut out?
    Looks great.
    Don't take experimental gene therapies from known eugenicists.
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