Help with SDA-1
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GrumpyOldMan
Posts: 7
I am trying to resurrect a pair of SDA-1, circa 1982, and have a question about the dimensional array speakers. These did not come with an interconnect so I fashioned a cable with speakon connectors. I basically connected the blue wire on crossover for both speakers and the white wire to both speakers. My question is I really seem to only hear a very marginal difference with the cable attached, should the sound difference be more noticeable or am I missing something. Thanks for the help and patience for the new guy.
Comments
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Barring any fault with the cable, do you have room suitable for them and are they positioned as recommended by Polk?
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It would help to know what the original interconnect socket was. Blade/blade or rta type. The blade/blade type is switched inside the cabinet. Let's say the blue was on the large blade in the left speaker. The right speaker will have the blue wire on the small blade and of course the white wire will follow the same way. If you followed that you should be correct. So if you followed that with the speakon it would be something like this blue on 1+ on left and 1- on right white 1-on left and 1+ on right.
The cable itself is not switched in any form, just the wiring to the speakon socket on the speaker. The interconnect wire would be plus to plus and negative to negative.Post edited by pitdogg2 on -
Hmmmm
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It would help to know what the original interconnect socket was. Blade/blade or rta type. The blade/blade type is switched inside the cabinet. Let's say the blue was on the large blade in the left speaker. The right speaker will have the blue wire on the small blade and of course the white wire will follow the same way. If you followed that you should be correct. So if you followed that with the speakon it would be something like this blue on 1+ on left and 1- on right white 1-on left and 1+ on right.
The cable itself is not switched in any form, just the wiring to the speakon socket on the speaker. The interconnect wire would be plus to plus and negative to negative.
Speaker came not only minus cable but plugs were also removed. The previous owner had just a speaker wire connecting them which was disconnected when I got. But if I understand your comment the plug on the right side should be wired to the opposite terminals of the left and the cble should remain plus to plus minus to minus... -
Barring any fault with the cable, do you have room suitable for them and are they positioned as recommended by Polk?
My room and wife
let me do basically whatever I need, the room is 20 X 30 valuted ceiling. -
GrumpyOldMan wrote: »
Lucky man... -
It would help to know what the original interconnect socket was. Blade/blade or rta type. The blade/blade type is switched inside the cabinet. Let's say the blue was on the large blade in the left speaker. The right speaker will have the blue wire on the small blade and of course the white wire will follow the same way. If you followed that you should be correct. So if you followed that with the speakon it would be something like this blue on 1+ on left and 1- on right white 1-on left and 1+ on right.
The cable itself is not switched in any form, just the wiring to the speakon socket on the speaker. The interconnect wire would be plus to plus and negative to negative.
Followed your advise and all works as advertised, Thanks -
Do we now have a substantialy wide sound stage?
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Glad to help
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Excellent.
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Another question, my subject SDA’s have mixed tweeters. Two 1000, two 2000, given availability of 2000 vs 1000, does it take much crossover work to use 2000? My 2000 are presently in the dimensional position and sound fine, but I don’t know if the cross has been messed with.
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IIRC, the 1k, 2k and RDO-194 are all interchangeable without XO mods.
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IIRC, the 1k, 2k and RDO-194 are all interchangeable without XO mods.
True that. But, IIRC to replace the 1k with the RD0194, you need to do cabinet modifications (ie. router the tweeter frame position on the front of the speaker out for a proper fit).
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Going from sl1000 to sl2000 or RD-0194 cabinet modifications are needed yes
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Thanks
