LSi7 Crossover upgrade?

Stevenmbell
Stevenmbell Posts: 60
edited June 2009 in DIY, Mods & Tweaks
Has any one done a crossover upgrade on there LSi7's? If so can you help me out? Thank you Steve:confused:
2 CHANNEL:cool:
Belkin PF31Pure power/AV Conditioner
NAD C165BEE PreAmp Great Phono Section
B&K ST1400 S2 Power Amp
Audio Quest 4 Speaker Cables
ProJect RPM 1 Carbon
Ortofon Blue Cartridge
Quadio Interconnects
Denon 2910 DVD-A/SACD Player
Pangea SE 14 & AC9 Power Cords
Vifa DIY 3 ways Sound is incredible. :biggrin:
Post edited by Stevenmbell on
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  • McLoki
    McLoki Posts: 5,231
    edited June 2009
    I have not yet, but it is the next upgrade on my list. (waiting for the next SonicCraft sale)

    Anyway - what do you need?
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)
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  • Stevenmbell
    Stevenmbell Posts: 60
    edited June 2009
    Just wanted to know if you stayed with the same values in your caps or did you change them? What were your results?
    2 CHANNEL:cool:
    Belkin PF31Pure power/AV Conditioner
    NAD C165BEE PreAmp Great Phono Section
    B&K ST1400 S2 Power Amp
    Audio Quest 4 Speaker Cables
    ProJect RPM 1 Carbon
    Ortofon Blue Cartridge
    Quadio Interconnects
    Denon 2910 DVD-A/SACD Player
    Pangea SE 14 & AC9 Power Cords
    Vifa DIY 3 ways Sound is incredible. :biggrin:
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  • McLoki
    McLoki Posts: 5,231
    edited June 2009
    I have done an LSiC crossover upgrade (with very good results) and expect even better results from the LSi7 upgrade (due to the crossover design and values)

    I (and most people I think) stick with the same values for the components and just use higher quality ones. I repace the caps with SonicCaps and the resistors with Mills. You could also change out the inductors, but I have not gone that far.

    Good luck with the upgrade and take lots of pictures. Any other questions, just ask.

    Michael
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)
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  • Face
    Face Posts: 14,340
    edited June 2009
    McLoki wrote: »
    (waiting for the next SonicCraft sale)
    They may have one soon. I noticed when PartsConnexion has a sale, Sonic Craft usually follows and vice versa.

    As for changing values, if you have to ask...don't. An air core inductor for the woofer wouldn't be a bad idea, but make sure the DCR is the same or very close to the OEM value.

    The rest depends on your budget.
    "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
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  • zingo
    zingo Posts: 11,258
    edited June 2009
    How much experience do you have with a soldering iron?
    Jake
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  • curved
    curved Posts: 664
    edited June 2009
    zingo wrote: »
    How much experience do you have with a soldering iron?

    Very good point.

    If you have soldered before, I can't see the LSi7 being that much of a problem. Not like an LSi15 or an RTiA9
    Living Room:....................[HTML] [/HTML] Zone 2 (Workout Room):
    AVR - Yamaha RX-V757......JBL 4312 Pro Monitors
    Pre - Nak CA-5
    AMP - Adcom 555 (Main)
    Main - Polk RTI8**/RTiA5
    AMP - Adcom 545II (Center)
    Center - Polk CSiA4**
    Sub - Snell Basis 300:p......Zone 3 (Outside)
    CD - Yamaha CDC-555.......Def Tech AW5500
    TV - Pani TH-42PZ80U
    BR - LG BD390
    Monster HTS1600 Power Center
    Dedicated Circuit - (2) 20amp, (1) 15amp
    Ben's IC, Canare 4S11
    **Dayton and Sonicap Caps with Mills Resistors**
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  • Face
    Face Posts: 14,340
    edited June 2009
    Face wrote: »
    They may have one soon. I noticed when PartsConnexion has a sale, Sonic Craft usually follows and vice versa.
    What'd I tell ya?
    http://soniccraft.com/index.htm
    "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
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  • McLoki
    McLoki Posts: 5,231
    edited June 2009
    Face wrote: »
    What'd I tell ya?
    http://soniccraft.com/index.htm

    Parts Ordered - Thanks Face.....
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)
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  • McLoki
    McLoki Posts: 5,231
    edited June 2009
    I did not want to muddy up your thread with my own upgrade so I started my own here.....

    If you have any specific questions, just ask and I will make sure I get a photo of it as I work on mine. I expect to start the work on mine next week sometime, so you have until then for any preemptive type questions.

    Have you ordered your parts yet for the upgrade? What did you end up getting?
    Mains.............Polk LSi15 (Cherry)
    Center............Polk LSiC (Crossover upgraded)
    Surrounds.......Polk LSi7 (Gloss Black - wood sides removed and crossovers upgraded)
    Subwoofers.....SVS 25-31 CS+ and PC+ (both 20hz tune)
    Pre\Pro...........NAD T163 (Modded with LM4562 opamps)
    Amplifier.........Cinepro 3k6 (6-channel, 500wpc@4ohms)
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