My SDA adventure

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  • thejck
    thejck Posts: 849
    edited October 2010
    my neighbor collected a package from the mail man for me today so it just might be it. Will find out in an hour.
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  • thejck
    thejck Posts: 849
    edited October 2010
    TOOLFORLIFEFAN wrote: »
    As I can tell the 1.2's did not have the weights but the 1.2tl's did.

    I have a set of each now.

    do they make much difference? worth worrying about?
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  • thejck
    thejck Posts: 849
    edited October 2010
    TOOLFORLIFEFAN wrote: »
    As I can tell the 1.2's did not have the weights but the 1.2tl's did.

    I have a set of each now.

    man how did you get so lucky to have 2 sets of speakers..I dont think I could ever swing that with my wife but I would love to have a second set of crossovers handy.

    have you heard any difference between the 1.2TL's and the 1.2 that you upgraded with crossovers by Ben and new rdo198 tweeters?
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  • Toolfan66
    Toolfan66 Posts: 17,243
    edited October 2010
    thejck wrote: »
    man how did you get so lucky to have 2 sets of speakers..I dont think I could ever swing that with my wife but I would love to have a second set of crossovers handy.

    have you heard any difference between the 1.2TL's and the 1.2 that you upgraded with crossovers by Ben and new rdo198 tweeters?

    I have an extra set of passives (two sets) and crossovers..
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  • thejck
    thejck Posts: 849
    edited November 2010
    Is it ok to use hot glue on your crossovers to join caps together to make them more sturdy and prevent vibration and also as an insulator to prevent accidental shorting?
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  • nadams
    nadams Posts: 5,877
    edited November 2010
    Absolutely. Don't rely on it as an actual insulator, though, as some hot glue can be conductive.
    Ludicrous gibs!
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  • thejck
    thejck Posts: 849
    edited January 2012
    I am redoing my crossover with gimpod's new boards. Do we have anyplace I can find the DCR for the rdo-198's and the other mid drivers in the 1.2TL speakers?

    my 198's measure 5.7 and one measures 5.5 is that normal?
    I know the mid drivers are wired in series and parallel 2 by 2. I am getting measurements on 3.3 and 6.7
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  • thejck
    thejck Posts: 849
    edited January 2012
    OK I think I am good on the mid drivers.

    I calculated them 2 in series and then parralel and the numbers were close

    From 4/14/2011

    Originally Posted by dorokusai
    These are the only drivers, aside from the RD tweeters, being manufactured to support vintage products, such as, Monitor, RTA and SDA. You should print this as a reference and keep it handy for the values it contains. There are no grill parts, cables, crossovers, plates or anything else available for the older loudspeakers, unless you know the Polk G O D.

    1 Driver Type Q BL Compliance DC Resistance Fs

    3 MW 6501 1.470 5.96 N 3.250 E - 3N/M 7.750 Ohms 31 Hertz
    4 MW 6502 1.970 5.16 N 1.470 E - 3N/M 3.520 Ohms 44 Hertz
    5 MW 6503 1.820 5.24 N 3.550 E - 3N/M 6.540 Ohms 29 Hertz
    6 MW 6509 2.100 4.57 N 3.540 E - 3N/M 8.970 Ohms 30 Hertz
    7 MW 6510 1.390 6.32 N 3.410 E - 3N/M 6.570 Ohms 31 Hertz
    8 MW 6511 1.405 4.34 N 3.496 E - 3N/M 3.130 Ohms 29 Hertz
    9 MW 6512 1.905 4.99 N 1.588 E - 3N/M 3.466 Ohms 40 Hertz
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  • thejck
    thejck Posts: 849
    edited January 2012
    anyone have the rdo 198 dcr values?
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  • thejck
    thejck Posts: 849
    edited January 2012
    100_0964.jpg

    Got new Sonic caps for the LF section. Got new Solen inductors for the LF section as well.
    100_0962.jpg

    100_0963.jpg

    Old resistors and caps pulled of the crossovers done by Ben a year ago that will be reused. Doing this one at a time as I would like to be able to tell the difference
    100_0965.jpg

    New 10Ga coils and I cut the wooden blocks out of a 2 by 6 with a jig saw. Not pretty but they will work. Did not have a hole saw big enough. Not sure how I will mount them
    100_0966.jpg

    Hopefully they will breathe again by this weekend.
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