Polk crs+ Erse Super Q Inductor question

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  • pitdogg2
    pitdogg2 Posts: 27,780
    edited April 2025
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    lms wrote: »
    I have no idea how to do that right.
    You need the proper meter to get to the proper value.
    Do you know the proper inductor value for yours? Am I overlooking it above?
    I'm thinking with the inductor values listed a laminated would not be beneficial.
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  • lms
    lms Posts: 54
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    5.6mh.
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  • pitdogg2
    pitdogg2 Posts: 27,780
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    lms wrote: »
    5.6mh.

    That is a lot of unwinding from 16mh.
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  • VR3
    VR3 Posts: 29,702
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    If you play your cards right you could make baby inductors along the way
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Toolfan66
    Toolfan66 Posts: 18,370
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    At this point, is where Larry would just mod them to CRS+’s

    Get the two needed drivers, point to point crossovers, RD-0198 tweeters. Etc.. 🤪
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  • Gardenstater
    Gardenstater Posts: 4,890
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    5.6mH Jantzen C Coils are available:

    https://www.parts-express.com/Jantzen-6295-5.6mH-14-AWG-C-Coil-Toroidal-Inductor-255-824?quantity=1
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Onkyo A-8017 integrated
    Logitech Squeezebox Touch Streamer w/EDO applet
    iFi nano iDSD DAC
    iPurifier3
    iDefender w/ iPower PS
    Custom Steve Wilson 1m UPOCC Interconnect
    iFi Mercury 0.5m OFHC continuous cast copper USB cable
    Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
    Custom Vibration Isolation Speaker Stands and Sub Platform
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  • pitdogg2
    pitdogg2 Posts: 27,780
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    https://uscoils.us/product/ussq55-14-5600/
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  • lms
    lms Posts: 54
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    Yep, found the uscoils last week, ordered them this morning. From what I read, erse employees started uscoils, so they are pretty much the same coils. Not expensive either. On order.
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  • lms
    lms Posts: 54
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    Life got in the way, just mounted the 130's, but before I fire these up, will the way I have them wired work? I know these need to be in Parrell, but looking at how I wired I'm wondering if this is in series?
    Thanks
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  • VR3
    VR3 Posts: 29,702
    edited June 2025
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    The cap goes from the dimensional driver negative to sda connector. Keep in mind on this series the connection for the sda cable on each speaker is different. This is important as if it's not it's a short

    The inductor is connected to the dimensional driver negative and the stereo driver negative

    Caps in series decrease, caps in parallel increase
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • lms
    lms Posts: 54
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    I rechecked the wiring, left PR out and played music, bingo, they work, dimensional is working based on changing balance. Before I button them up and based on how I soldered the two caps together, does this look correct? I'm pretty sure it is unless you have to have both leads on each side connect to the spade??
    Thanks
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  • VR3
    VR3 Posts: 29,702
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    I honestly can't make heads or tails of your photo lol
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • lms
    lms Posts: 54
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    lol, yeah, it's fricken cramped in there. Basically, I'm just over thinking this is all. I was just wondering if the caps were soldered the right way and not in series, but there is no way these are in series the way I have them. Thats what happens when you wake up at 3:30
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  • VR3
    VR3 Posts: 29,702
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    Series would be like Christmas lights
    Parallel is like a big hug
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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