SDA SRS crossovers

macowan61
macowan61 Posts: 5
edited December 2009 in Vintage Speakers
Hello! Oh boy a whole bunch of speaker geeks! Any ways I have a set of SDA SRS big boys that I recently bi amped. I am using 2 Kenwood Basic M2A's. They are wired per the instructions in the manual. Now I do not have the inside row of drivers on the right speaker not working. Any ideas? MY babies are sick and I need them fixed. Been a while since the law has come over and told me to turn it down because the people next door do not like there dish's rattling! lol ANy help or suggestions would be appreciated.
Post edited by macowan61 on
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  • JohnLocke88
    JohnLocke88 Posts: 1,150
    edited December 2009
    macowan61 wrote: »
    Hello! Oh boy a whole bunch of speaker geeks! Any ways I have a set of SDA SRS big boys that I recently bi amped. I am using 2 Kenwood Basic M2A's. They are wired per the instructions in the manual. Now I do not have the inside row of drivers on the right speaker not working. Any ideas? MY babies are sick and I need them fixed. Been a while since the law has come over and told me to turn it down because the people next door do not like there dish's rattling! lol ANy help or suggestions would be appreciated.

    If you're using two separate amps (one to power each speaker), and you're also using the SDA interconnect cable, you have just blown up your SDA array. Were you using an A-1 cable? Do your amps allow them to have the negatives "strapped?"
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited December 2009
    Welcome to Club Polk. I'm sorry to say I agree with John as the two amps wired seperately are not common ground and you probably blew the right array.
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  • JohnLocke88
    JohnLocke88 Posts: 1,150
    edited December 2009
    JohnLocke88 wrote: »
    If you're using two separate amps (one to power each speaker), and you're also using the SDA interconnect cable, you have just blown up your SDA array. Were you using an A-1 cable? Do your amps allow them to have the negatives "strapped?"

    Lol SDA array; sorry, "Dimensional array"
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  • Tony M
    Tony M Posts: 11,189
    edited December 2009
    That's gotta hurt..:(....Sorry to hear the prognosis.
    Most people just listen to music and watch movies. I EXPERIENCE them.
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  • macowan61
    macowan61 Posts: 5
    edited December 2009
    I wired them per the instructions in the manual. I hooked them back up in standard stereo mode with 1 amp and they are working fine. Thank god. The way the manual says to wire it is one amp runs the tweeters and one amp runs the drivers. I have the standard interconnect cable. Are you saying the Kenwood M2A is not a common ground amplifier?
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  • hearingimpared
    hearingimpared Posts: 21,136
    edited December 2009
    It's great to hear that you didn't blow your dimentional array.

    If you want to check your Kenwood for common ground, place an ohm meter on the left & right negative speaker posts (of course with the amp off and not connected to speakers) and see if the reading reads ZERO or near ZERO.

    If it is not common ground call Kenwood technical support and ask if it is okay to strap the negatives together.
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  • F1nut
    F1nut Posts: 50,753
    edited December 2009
    ANy help or suggestions would be appreciated.

    Yeah, be glad I'm not your neighbor.

    Seriously, if your neighbor is that close, you have an obligation to not disturb their life.
    The way the manual says to wire it is one amp runs the tweeters and one amp runs the drivers.

    Did you remove the jumpers?
    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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  • twochannel
    twochannel Posts: 171
    edited December 2009
    I had a Kenwood M2A to power my Bose 601's and it was a great amp. When the SDA-SRS's (original version) became available, I was asked by the Polk dealer to bring the amp in to demo the speakers. He stated that it may not handle the low impedance load of the big boys. A customer just fried a M1A hooked up to SDA 1. The M2A was rated at a 4 ohm load minimum, so we tried it anyway. Low volumes it worked fine, but at higher volumes the tweeters distorted and the amp protection kicked in. I needed an amp that could handle a 1 ohm load. So I sold the M2A and purchase a Adcom.
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  • george daniel
    george daniel Posts: 12,096
    edited December 2009
    Just get the Big A$$ED BAT with the Batpac and you're done for a few years.

    here you go;

    http://www.audiogon.com/cgi-bin/cls.pl?ddampstran&1253033781&/Balanced-Audio-BAT-VK-600-w/-b
    JC approves....he told me so. (F-1 nut)
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  • engtaz
    engtaz Posts: 7,664
    edited December 2009
    Now that's a amp.
    engtaz

    I love how music can brighten up a bad day.
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  • Face
    Face Posts: 14,340
    edited December 2009
    george daniel wrote: »
    Just get the Big A$$ED BAT with the Batpac and you're done for a few years.

    here you go;

    http://www.audiogon.com/cgi-bin/cls.pl?ddampstran&1253033781&/Balanced-Audio-BAT-VK-600-w/-b

    Yes, too bad it's a dual mono design.
    "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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  • george daniel
    george daniel Posts: 12,096
    edited December 2009
    Face wrote: »
    Yes, too bad it's a dual mono design.

    Really,, I thought twice about posting it because of the possibility of the dual mono config,,but I thought nah,, could'nt be--that one flew by me--thanks for pointing that out. So,one would have to use the AI-1 or strap the grounds--if appropriate,, yes?:o
    JC approves....he told me so. (F-1 nut)
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