Touching up my LSiM703

mm840lsi15
mm840lsi15 Posts: 35
in DIY, Mods & Tweaks
So I had a couple of scratches on my pair of cherry LSiM703s that I needed to fix...

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  • xschop
    xschop Posts: 5,000
    Liked
    Don't take experimental gene therapies from known eugenicists.
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  • displayname
    displayname Posts: 1,148
    Looks very sharp! Bold move but it paid off.
    Analog: MoFi MasterTracker > MoFi UltraDeck > Sutherland 20/20
    Digital: Cambridge CXC / Streaming > Cambridge CXN v2
    MastersounD Dueventi > Rosso Fiorentino Certaldo or Arcam rHead > Hifiman HE4XX
    Discogs
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  • Emlyn
    Emlyn Posts: 4,523
    Those look good!
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  • Hermitism
    Hermitism Posts: 4,271
    Sacrilege
    Desecration

    You should take some up-close pics of the interior of those cabinets while they're open and post them for anyone that wants to see their construction.
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  • Hansvelton
    Hansvelton Posts: 151
    Any chance of getting a pic of the back side of crossover also?
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  • msg
    msg Posts: 10,116
    Wohhhh! those turned out nice!
    What kind of paint did you use?

    Curious to see the finished product.

    Were you torn at all on whether to keep the front baffles black? Guess it doesn't matter when you could just slap the grills on if you want.
    I disabled signatures.
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  • Milito
    Milito Posts: 1,960
    Very nice paint work!
    Yamaha RX-A2070, Musical Fidelity M6si integrated amp, Benchmark Dac1, Bluesound NODE 2i, Audiolab 6000CDT CD Transport, Parasound Zphono USB Phono Preamp, Fluance RT85, Ortofon 2M Bronze, Polk L600's, L400, L900's, RC80i's, SVS 3000 Micro, Audioquest Interconnects and Digital Cables, Nordost Silver Shadow Digital Cable, Cullen Gold and Crossover Series Power Cables, Douglas Connection Alpha 12AWG OCC Speaker Cables, Douglas Connection Alpha Analog Interconnect Cables, Douglas Connection Alpha 11 OCC Custom Power Cable, Signal Power Cable, Furman PL-8C 15 Power Conditioner, Sony 65" 900F, Sony UBP-X700, Fios, Apple TV 4K, Audioquest Chocolate HDMI Cables.
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  • mm840lsi15
    mm840lsi15 Posts: 35
    edited September 2020
    The insides of the LSiM703 (had to take pictures vertically):

    hq65qw5l6tsw.jpg

    HF and MF speaker section. The stock woofer crossover is placed here:

    lgkygxt87sl3.jpg

    sz1z2x3ygaz9.jpg

    o36vsk9n6fxs.jpg

    3yyt63zvybdh.jpg

    Woofer section. The crossover for HF and MF is located here:

    ufl0ryce0id0.jpg

    bp98rtzflyvn.jpg

    ilqtnfy8ii07.jpg


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  • mm840lsi15
    mm840lsi15 Posts: 35
    LSiM703 crossover pictures.

    The schematic is located here: https://forum.polkaudio.com/discussion/191594/lsim703-schematic

    Woofer crossover:

    s8vuxj2up4oc.jpg

    i1cber7x6ebe.jpg

    HF and MF crossover:

    8vvfxt30sqt3.jpg

    8tmjlin2qlbw.jpg
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  • vmaxer
    vmaxer Posts: 5,117
    Interesting
    Pio Elete Pro 520
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    Micro Seiki DD-40 - Lyra-Dorian and Denon DL-160
    PS Audio GCPH phono pre
    Sunfire CG 200 X 5
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    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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  • Hansvelton
    Hansvelton Posts: 151
    mm840lsi15 wrote: »
    LSiM703 crossover pictures.

    The schematic is located here: https://forum.polkaudio.com/discussion/191594/lsim703-schematic

    Woofer crossover:

    I will look all this over, as we discussed. Thanks for the additional pics. Will get back to you soon!
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  • rooftop59
    rooftop59 Posts: 8,121
    Those look pretty cool! Did you take them to an auto body shop or so it yourself? I would also like to see them reassembled...
    Living Room 2.2: Usher BE-718 "tiny dancers"; Dual DIY Dayton audio RSS210HF-4 Subs with Dayton SPA-250 amps; Arcam SA30; Musical Fidelity A308; Sony UBP-x1000es
    Game Room 5.1.4:     Denon AVR-X4200w; Sony UBP-x700; Definitive Technology Power Monitor 900 mains, CLR-3000 center, StudioMonitor 350 surrounds, ProMonitor 800 atmos x4; Sub - Monoprice Monolith 15in THX Ultra
    Bedroom 2.1     Harmon Kardon HK3490; Bluesounds Node N130; Polk RT25i; ACI Titan Subwoofer
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  • dromunds
    dromunds Posts: 10,014
    Outstanding. About 15 coats?
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  • mm840lsi15
    mm840lsi15 Posts: 35
    msg wrote: »
    Wohhhh! those turned out nice!
    What kind of paint did you use?

    Curious to see the finished product.

    Were you torn at all on whether to keep the front baffles black? Guess it doesn't matter when you could just slap the grills on if you want.

    Cheers, I guess I knew I wanted to have all-white LSiM703s. I seem to have lost the grills but if I had them, I'd swap the grill cloth to white as well.
    rooftop59 wrote: »
    Those look pretty cool! Did you take them to an auto body shop or so it yourself? I would also like to see them reassembled...

    Cheers. An acquaintance of mine runs an audio restoration shop, so he painted the speakers for me. This is his second speaker restoration job for me with the first project being the beautiful, better than new restoration of my LSi9s.
    dromunds wrote: »
    Outstanding. About 15 coats?

    I wish I knew. But the guy knows his job indeed.
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  • mm840lsi15
    mm840lsi15 Posts: 35
    edited December 2020
    It's time to have my Alpine white LSiM703s treated at last.

    Recapping might make your speakers' internals look differently, so why not.

    Here's my idea of a rebuilt LSiM703 LF crossover:

    3gw6va7kvznn.jpg
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    ie5n6jep2ore.jpg

    It does look seriously awkward if you ask me. I'll name it Tsar 'WTF' Tank.

    Tsar Tank:

    5s4j8umwsqwj.jpg
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  • skrol
    skrol Posts: 3,387
    Looks very nice in white.
    Stan

    Main 2ch:
    Polk LSi15 (DB840 upgrade), Parasound: P/LD-1100, HCA-1000A; Denon: DVD-2910, DRM-800A; Benchmark DAC1, Monster HTS3600-MKII, Grado SR-225i; Technics SL-J2, Parasound PPH-100.

    HT:
    Marantz SR7010, Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S4, CS250, PSW110 , Marantz UD5005, Pioneer PL-530, Panasonic TC-P42S60

    Other stuff:
    Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601
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  • jeremymarcinko
    jeremymarcinko Posts: 3,785
    Looks great!
    Oh, Listen here mister. We got no way of understandin' this world. But we got as much sense of this bird flyin in the sky. Now there is a lot that bird don't know, but it don't change the fact that the world is happening to him all the same. What I am tryin to say is, is that the course of your life, well its changing, and you don't even see it- Forest Bondurant
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  • pitdogg2
    pitdogg2 Posts: 25,553
    Are you now calling them Artic Cherry?

    :D:D
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  • BlueBirdMusic
    BlueBirdMusic Posts: 2,304
    I smell the paint.
    "Sometimes you have to look to the past to understand where you are going in the future"

    Anger is just anger. It isn’t good. It isn’t bad. It just is. What you do with it is what matters.
    You can use it to build or to destroy. You just have to make the choice.     Jim Butcher




    Harry / Marietta GA
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  • WLDock
    WLDock Posts: 3,073
    edited December 2020
    Those are nice! The first thing that comes to mind are the white Signature Series products available in Europe. The white really accentuates the curves of the LSiM and makes them a little more appealing than the Sig.

    cl5k3cjcfy9h.jpg
    2.2 Office Setup | LG 29UB55 21:9 UltraWide | HP Probook 630 G8 | Dell Latitude | Cabasse Stream Amp 100 | Boston Acoustics VS 240 | AUDIORAX Desk Stands | Mirage Omni S8 sub1 | Mirage Omni S8 Sub2
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  • skrol
    skrol Posts: 3,387
    Why does Europe get all the cool stuff, especially cars?
    Stan

    Main 2ch:
    Polk LSi15 (DB840 upgrade), Parasound: P/LD-1100, HCA-1000A; Denon: DVD-2910, DRM-800A; Benchmark DAC1, Monster HTS3600-MKII, Grado SR-225i; Technics SL-J2, Parasound PPH-100.

    HT:
    Marantz SR7010, Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S4, CS250, PSW110 , Marantz UD5005, Pioneer PL-530, Panasonic TC-P42S60

    Other stuff:
    Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601
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  • Toolfan66
    Toolfan66 Posts: 17,294
    Love the white, that should have been an option...
    Polk Audio SDA 2.3tl Fully Hot Rodded. 😎

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  • mm840lsi15
    mm840lsi15 Posts: 35
    Whoa, I wish it was an option indeed!!!

    lfacfnoeg6fd.jpg
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  • mm840lsi15
    mm840lsi15 Posts: 35
    A good friend of mine videocalled last week and asked me if I could give him an advice or two on bookshelf speakers. I mistakingly pointed at the white LSiM703 beauties as an example of really good sounding and well built spea... "Good! Pack them real nice and send them over, 'cause I'm buying them!!! Lucky me!".

    Damn! Not only I would not want to sell anything to my friend, but also I wouldn't want to part with the 703s!!! Sigh. I'll have to look for another pair then.

    Anyway, back to the crossover. The further it all goes, the more I tend to appreciate the great job Polk engineers did with the neat and nice stock crossovers! I know I should have recapped the crossovers and leave it be but hey I had an itch indeed.

    So I present you the HF and MF crossover section.

    d0gboto0z33e.jpg

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    era738z1qp5x.jpg

    24ieedu79zq0.jpg

    I think I'll call it Liebherr this time. Gosh, Polk engineers did a great job indeed!

    Here's the original Liebherr:

    7ks3dwhnsogk.jpg
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  • mm840lsi15
    mm840lsi15 Posts: 35
    Here's the treatment of the insides:

    4yus8kejsuxu.jpg

    6h792wz5c83v.jpg

    w1i1od39q8my.jpg

    fy5xd523vc0k.jpg

    vo5lwaol433y.jpg

    vhqob5s4b5cg.jpg
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  • mantis
    mantis Posts: 17,200
    DAMN!!! I really like them in White. Wow it would have been nice to see Polk offer them in that color. WOW I really like that.
    Dan
    My personal quest is to save to world of bad audio, one thread at a time.
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  • Hansvelton
    Hansvelton Posts: 151
    Those caps just remind me of clogged Plumbing PVC!! :)zyqfjc8c7b8a.png
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  • skrol
    skrol Posts: 3,387
    They look incredible in white.
    Stan

    Main 2ch:
    Polk LSi15 (DB840 upgrade), Parasound: P/LD-1100, HCA-1000A; Denon: DVD-2910, DRM-800A; Benchmark DAC1, Monster HTS3600-MKII, Grado SR-225i; Technics SL-J2, Parasound PPH-100.

    HT:
    Marantz SR7010, Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S4, CS250, PSW110 , Marantz UD5005, Pioneer PL-530, Panasonic TC-P42S60

    Other stuff:
    Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601
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  • mm840lsi15
    mm840lsi15 Posts: 35
    edited December 2020
    A somewhat more usual way to recap your 703s (and reposition the resistors on the back side of the board):

    16n8p4bjinya.jpg

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    zw0vv6rflcqv.jpg

    ts4y1l8lf99w.jpg

    I chose to have two different crossover implementations out of curiosity. I'll measure both speakers and report here once done.
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  • Clipdat
    Clipdat Posts: 12,949
    Getting wild with the hot glue gun!
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