Picked up a mint pair of SDA CRS +'s...I'd like to bring them back to their former glory, or better.

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  • 91rtstealth
    91rtstealth Posts: 96
    once I get those other crossovers I posted above, do I NOW have all the correct schematics below? If so, I'm going to try to learn how to read them properly.

    1. stock


    2. upgrade


    3. the step by step process of doing the upgrade

    u1ef9lv3d846.jpg


    are these all correct?

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  • billbillw
    billbillw Posts: 7,631
    Do you have soldering supplies? If you have never soldered before, there is a bit of learning that should be done before you ever take an iron to the crossovers.
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  • 91rtstealth
    91rtstealth Posts: 96
    that's the one thing I actually do know how to do..haha...I'm not the best, but I have a fair amount of experience....I used to install remote starts/alarms/keyless entry and stuff like that in cars for a living..so i've soldered a TON of wires...and I've rebuilt a few modules for my Dodge Stealths/Mitsubishi 3000GT's over the last 20 years....I built a Dynaco ST70 and a Bottlehead Tube Amp....I recapped some things before...so I do know how to solder and desolder enough to get by...so far, the ECU that I recapped in my 1991 Stealth has been working since 2001...haha...

    I just have no experience with working on the crossovers of these speakers...I've only ever did small stuff like replace tweeters and drivers, binding posts, dynamatting the baskets, etc...I never did any major work to their crossovers before...

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  • JayMX
    JayMX Posts: 457
    edited 12:49AM
    91rtstealth wrote: »


    3. the step by step process of doing the upgrade

    u1ef9lv3d846.jpg


    The circuit diagram I marked up is ONLY applicable to modifying the 1986 version. If you acquire the newer pin/blade, single-board crossovers, then you should use the 4.1TL schematic as your reference to update to RD0198’s and 6510/6511 midwoofers. Forget the marked up diagram. It does not apply to the single-board crossovers.

    Current Collection: Monitor 4a (Peerless), Modified Monitor 7b (Peerless), RTA15TL (SL3000), Full mod SDA CRS 4.1TL (198’s), SDA SRS 2.3TL, R100's, R200’s, R300 🤩
    Pairs that have passed through: Monitor 4b (Peerless), Monitor 5a (Peerless), Monitor 5B (Peerless), Monitor 5b (SL1000), Monitor 5b (SL2000) (4x pair), Monitor 7b (Peerless), Modified Monitor 7c’s (194’s), Monitor 10a (Peerless), Monitor 10b (5x pair), RTA8, RTA8TL, RTA 11T, RTA12c (194's), SDA1(mod to “a” & SL1000 Wuhan mod), SDA CRS, SDA 2 (2x pair), SDA 2a, SDA 2b, SDA 1b, SDA 1c, SDA SRS 2 (2x pair), SDA SRS 3.1TL (198’s) (2x pair)...and more to come, it’s a sickness.
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  • 91rtstealth
    91rtstealth Posts: 96
    JayMX wrote: »
    91rtstealth wrote: »


    3. the step by step process of doing the upgrade

    u1ef9lv3d846.jpg


    The circuit diagram I marked up is ONLY applicable to modifying the 1986 version. If you acquire the newer pin/blade, single-board crossovers, then you should use the 4.1TL schematic as your reference to update to RD0198’s and 6510/6511 midwoofers. Forget the marked up diagram. It does not apply to the single-board crossovers.

    got it..thanks...seems like a done deal on getting those single board crossovers..I just gotta work out the shipping and payment with the guy, but you never know...i'll let ya'll know on here when or if I definitely get them...and on facebook...I'm sure i'll need help navigating that TL mod...I still need to get the tweeters and other components anyways..I gotta do it slowly...my work schedule is slow and I have entirely too many hobbies that cost money..I'd love to bang this out asap, but I gotta watch my spending right now...
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