an sda-1b quandry ( AI-1 related)
OldSycamoreTree
Posts: 70
Hello all,
was wondering if the stock interconnect can be made into an AI-1 for use with the 1B model, by cutting in half and adding the transformer. I have checked past threads and know the AI-1 works with the 1C model but am unsure of the 1b.
I think Ken told me in the past that it does not work but I lost his email to me. My interconnect has blade/blade ends.
My quandry is a result of having 1b's that I thought originally were 1c's -since they are in black studio finish, and I did not know they made 1b in this finish. Well, since I read of others who ran the 1c with mono amps, I bought a set but the 1b does not work with the monos. (I tried the negative terminal amp strapping, but the speakers sounding like a car alarm going off ! I did not try super thick lamp cord though)
So, the 1b's got relegated to my garage
where I listen when on a nordic-track. They are too nice of a speaker for garage duty and I miss their rich tonality. Vintage Advent Heritage pecan-wood towers took their place in the living room. These are very good but I think SDA is better. I had been running the sda-1b's / monos without the umbilical in the living room but felt something was missing. In the garage I get sda exercise sessions.
Sorry to ramble. The sda's either have to be made workable with my monos, or the sdas sold, or the monos sold. Figured it would be worth asking if the 1b is accepting of the AI-1 or if it has internal crossover limiting factors?
thanks for any input.
was wondering if the stock interconnect can be made into an AI-1 for use with the 1B model, by cutting in half and adding the transformer. I have checked past threads and know the AI-1 works with the 1C model but am unsure of the 1b.
I think Ken told me in the past that it does not work but I lost his email to me. My interconnect has blade/blade ends.
My quandry is a result of having 1b's that I thought originally were 1c's -since they are in black studio finish, and I did not know they made 1b in this finish. Well, since I read of others who ran the 1c with mono amps, I bought a set but the 1b does not work with the monos. (I tried the negative terminal amp strapping, but the speakers sounding like a car alarm going off ! I did not try super thick lamp cord though)
So, the 1b's got relegated to my garage
where I listen when on a nordic-track. They are too nice of a speaker for garage duty and I miss their rich tonality. Vintage Advent Heritage pecan-wood towers took their place in the living room. These are very good but I think SDA is better. I had been running the sda-1b's / monos without the umbilical in the living room but felt something was missing. In the garage I get sda exercise sessions.Sorry to ramble. The sda's either have to be made workable with my monos, or the sdas sold, or the monos sold. Figured it would be worth asking if the 1b is accepting of the AI-1 or if it has internal crossover limiting factors?
thanks for any input.
Post edited by OldSycamoreTree on
Comments
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You can not use the AI-1 with your 1B's.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 -
thanks F1. that's what I thought but was hoping otherwise.
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What mono's do you have?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 -
odyssey mono extremes. I am leaning toward keeping them, selling the 1b's and save up for some vandersteen 2c or similar. or may sell the amps and get a higher powered tube integrated to run the 1bs.
Have an older vintage system with 13 watt Hk tube amp driving Klipsch heresys and its amazing what 13 old tube watts can do. -
Contact Odyssey about strapping them. It may not be possible judging by the result you had, but maybe you didn't have something correct like heavy enough gauge wire.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 -
Ody told me 'no problem to strap the amps' they were even going to give me the wire but they forgot as really busy over there (this was last December) so I made my own wire and had no idea the gauge mattered. the noise the speakers made was scary but it did not harm them. At this point I'm leery to try strapping again.
In addition I was in contact with dbnh and he was running his sda's and extremes with no AI-1, just the normal umbilical.
My flaw in judgement was thinking I owned 1c's like him, but my 1b's are obviously a different beast if it's not possible to splice a transformer into the umbilical. -
I have a pair of SDA 1B's and have had no problem running them with mono amps and with non-common ground stereo amps...after the negative terminals of the amp were strapped together.
"Strapping" means different things to different people. When you say you strapped the amps together, do you mean that you connected the negative outputs of each mono amp together, or did you just run a wire from chassis ground to chassis ground? On some amps, chassis ground and signal ground (binding post) are the same, on other amps chassis ground is isolated from signal ground.
With some amps, the signal common ground connection will need to be made to the positive binding post terminal rather than the negative one. Check with Odyssey to make sure that connecting the negative binding posts together will result in a common ground configuration.
Above all, make sure that the person you talk to at Odyssey really understands what you mean by "common ground". I have contacted some amp manufacturers (like Parasound) and had to be transferred to several people before I reached someone who really knew what "common ground" meant.
In addition to connecting the appropriate binding posts together, you may also need to connect the two chassis together with a wire of equal or greater gauge as the one connecting the binding posts.Proud and loyal citizen of the Digital Domain and Solid State Country! -
thanks dk. what do you mean "after the negative speaker terminals were strapped together" ? - did you also run a cable between the negs on the sda's, in addition to the sda umbilical ?
I will ask Klaus for clarification on the amps. All I had done was run speaker wire between the 2 amps' negatives. I think I used 14 gauge and stranded both sides of the wire together. Nothing was done to the chasis. There is no "ground" provision on exterior and I see nothing to attach wire to, especially if it has to be thicker than the one between the terminals.
The ody extreme amps can make 300 watts and over 50 amps of current so I am not going to play with this until I know more. -
OldSycamoreTree wrote:thanks dk. what do you mean "after the negative speaker terminals were strapped together" ? - did you also run a cable between the negs on the sda's, in addition to the sda umbilical ?
I meant that I connected the negative terminals of the amp's left and right channel together. I will go back and edit my post for better clarity.Proud and loyal citizen of the Digital Domain and Solid State Country! -
OldSycamoreTree wrote:Nothing was done to the chasis. There is no "ground" provision on exterior and I see nothing to attach wire to, especially if it has to be thicker than the one between the terminals.
To connect the chassi grounds, usually, you just connect a wire to one of the chassis screws.
If you have a Volt-Ohm meter, you can do a continuity test to see if the chassis ground and signal ground are the same.Proud and loyal citizen of the Digital Domain and Solid State Country!
