Do any have crossover schematic for monitor 5 series 2?

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JiLoq
JiLoq Posts: 5
in For Sale (FS) Classifieds
I need crossover schematic for my polk audio monitor 2 series 2.
Mw6502
Sl-2500
sw83

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  • JiLoq
    JiLoq Posts: 5
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  • Gardenstater
    Gardenstater Posts: 4,195
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    It would be in Vintage Speakers/Schematics all except SDA but I don't see it. would say M5s or M5s rev2. I only see the M5b and the tl mod (SL3000) to the M5b, which would also work with the SL2500 but I doubt that is very close to the circuit you have.

    You'll have to look at what you have and maybe we'll learn something, but inductors need a meter with more capability than the standard meter has, to measure.
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Crown D150 amp
    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: 24,614
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    I'm pretty sure the M5b SL3000 schematic is the same as the one he has. The SL2500 has a large and small tab to connect to the wiring. The RD-0198 is a drop in replacement for the SL2500.
    IF his crossover also has a 5.8uf cap across the resistor it's very likely it is the same.
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  • txcoastal1
    txcoastal1 Posts: 13,134
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    @JiLoq
    Can you provide a couple pics of your crossovers?
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC

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  • Gardenstater
    Gardenstater Posts: 4,195
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    pitdogg2 wrote: »
    I'm pretty sure the M5b SL3000 schematic is the same as the one he has. The SL2500 has a large and small tab to connect to the wiring. The RD-0198 is a drop in replacement for the SL2500.
    IF his crossover also has a 5.8uf cap across the resistor it's very likely it is the same.

    I guess we'll see. But if you look at the date in the SL3000mod for the 5B, I believe it is prior to the date that the M5 series II came out. Take the M10 schematics for example. The M10s rev2 schematic is dated March 1990 and the SL3000 mod is dated July 1989. The two schematics are significantly different.
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Crown D150 amp
    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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  • F1nut
    F1nut Posts: 49,834
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    JiLoq wrote: »
    I need crossover schematic for my polk audio monitor 2 series 2.
    Mw6502
    Sl-2500
    sw83

    Remove the crossover, you'll find the values printed on the components.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • F1nut
    F1nut Posts: 49,834
    edited May 2023
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    @CFarrell_SoundUnited
    This thread needs to be removed from the section.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • JiLoq
    JiLoq Posts: 5
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    F1nut wrote: »
    JiLoq wrote: »
    I need crossover schematic for my polk audio monitor 2 series 2.
    Mw6502
    Sl-2500
    sw83

    Remove the crossover, you'll find the values printed on the components.

    I don't have any crossover 🙁
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  • JiLoq
    JiLoq Posts: 5
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    txcoastal1 wrote: »
    @JiLoq
    Can you provide a couple pics of your crossovers?

    I don't have any crossover
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  • JiLoq
    JiLoq Posts: 5
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    Gardenstater wrote: »
    It would be in Vintage Speakers/Schematics all except SDA but I don't see it. would say M5s or M5s rev2. I only see the M5b and the tl mod (SL3000) to the M5b, which would also work with the SL2500 but I doubt that is very close to the circuit you have.

    You'll have to look at what you have and maybe we'll learn something, but inductors need a meter with more capability than the standard meter has, to measure.

    Sorry I don't have any crossover to look at.
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  • Gardenstater
    Gardenstater Posts: 4,195
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    @CFarrell_SoundUnited In this case, since we replied to a thread that is in the wrong section, could you just move it to another section?

    @JiLoq I see. So you bought speakers that someone had removed and sold the crossovers?

    That's a predicament. You could probably copy the SL3000mod crossover then, if you can't get the crossover schematic from someone here. The exact Series II crossover would be preferable though.
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Crown D150 amp
    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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  • Gardenstater
    Gardenstater Posts: 4,195
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    @JiLoq Here is the M7 Series II crossover that has the same active drivers. Of course, this speaker has a larger enclosure volume and therefore a different passive radiator but I wonder if the crossover was electronically the same as your M5 Series II.

    https://us.v-cdn.net/5021930/uploads/attachments/4/6/7/2/8/18774.pdf

    920s5bpat25b.jpg
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Crown D150 amp
    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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