I just received a nice pair of CRS+ speakers. They look great. But there is a plastic plug on the back of one of them that is loose. It is just a black push in plug, not an electrical plug. What is it's purpose and what should I do about it being loose? You can see it in the attached photo between the PR and the terminal cup.
I have not made final payment for these speakers so I need to determine if they are in proper operating condition before I do a lot of listening. Any help in doing that would really be appreciated.
Most of all I need help in determining if they are working as they should electronically. I have never heard SDAs so I need to check them for proper operation. Does the battery test work for SDAs with the IC cable connected to check the movement of the MW drivers? Any ideas on how to test SDA speakers for proper operation are welcomed.
They are currently setup with the tweeters 7-/1/2 feet apart. I'm sitting 12 feet away, measured to my ears. Is that setup in the ballpark for a starting point?
The speakers sound good with the IC cable disconnected or connected so I think the tweeters are OK. But I don't hear a difference whether the IC cable is connected or not. I have only listened to Steely Dan Aja for a short time and I realize more setup is probably needed. Could someone recommend a popular CD that really highlights the SDA effect? And describe what I should be hearing?
Thanks in advance!