A1 Isolation transformer for Polk Audio SDA 2B
VSAT88
Posts: 1,257
I have the SDA 2B's that are blade blade therefore one active conductor in the interconnect. In order to use an A1 / Dreadnought style isolation transformer I need connect a wire from the negative terminal binding post to the unused blade on the back of the blade terminal. Is that correct ? That is what I recall anyhow.
Not gonna do anything till I know though...Thanks.
Not gonna do anything till I know though...Thanks.
Comments
-
That is how pin/blades are inside speaker.
So yes if yours are not true B/b you can do that -
Then another question. Do I even need to send the speakers negative connection thru the transformer at all. I know that would connect or make common a wire between both speakers but is it necessary ?
-
Then another question. Do I even need to send the speakers negative connection thru the transformer at all. I know that would connect or make common a wire between both speakers but is it necessary ?
Very necessary if you have non common ground or mono's. I would do it.
How is it hooked up inside now? -
Right now everything is stock. I hope I am answering your question correctly. It is wired exactly like this. (Image by Gimpod)
-
Well not that it matters but I am using speakON Cable Connectors - Neutrik.
The amplifier is common ground. McCormack DNA 1. -
OK just checking
If it was me I'd hook up the blade(speakon) to the negative if I was going to be in there and be done.
-
Perhaps that is what this means ?? I am going in to do it as I have more work in there. I am trying out some oil filled capacitors in the 20uF and 40uF positions for the midwoofers. Thank you @pitdogg2
-
No, that's nothing to do with it. That is for the TL mod, which requires the small faston on the negative lead to the tweeter be changed to a large faston.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 -
Check that. I read that before and didn't understand it. I naturally changed the faston. I understand it perfectly now. The "HF harness" is referring to the speaker wire between the crossover and the new tweeter.
How about this for internal speaker wire ?
https://www.madisoundspeakerstore.com/speaker-wire/supra-rondo-2x2.5mm-speaker-wire-per-foot-13-awg/
