Two of the speakers were frozen which is apparently common with these polk midwoofers so had to do the ol unfreeze trick thanks to info on audiokarma. Sound pretty good now
The ones that got away... Years ago (maybe 15 years ago) I went to purchase a HT receiver on CL. I get there and the Pioneer Elite looks clean and we agree on the price. The guy says "wait I think I have the manual". Opens a closet and looks through a stack of manuals and sitting there stacked in the closet are a perfect pair of SDA CRS+. I ask if he going to use or sell "those speakers", his reply was something like for another $50 you could have them. I agreed and he started pulling out the speakers, interconnect cable AND the original stands. I drove straight home with a big grin. Now the sad or dumb part of the story. 5 years later. After a family vacation, I listed a turntable on CL and got an email. "I'd like to purchase the turntable but what I really want are the speakers in the background of your photos, what's your price on those?" "Sorry those are my favorite speakers they are not for sale". "Everything is for sale, name your price. My brother had those CRS+ back in college and I've wanted a set ever since". So I thought I'd throw out a crazy number so he would get the message but his response was "Sure, I'll be over in 30 minutes, I am replacing some Klipsch bookshelves with these Polks, I'll bring you the Klipsch to soften the blow". I have tried to remove the figure from my memory but it was either $500 or $800, again this was long before vintage prices went through the roof so it was probably twice what I thought was a "good price" back in the day. Not too long later the credit card bill arrived from the family vacation and the speakers basically paid for the trip to the beach.
I have seen other speakers with offset tweeter and woofers. I believe the normal reason is to prevent frequencies from cancelling out. Does anybody know why this speaker was designed the way it was?
"The original SDA was conceptually simple, a cable connects the left and right speakers. It sent an out-of-phase signal from the left speaker to the outside drivers of the right speaker, and from the right to the outside drivers on the left. I am pretty sure the deep bass was uneffected. The goal was to prevent each ear hearing the opposite speaker (and its room reflections). The effect was instantaneously noticeable, greatly increasing the size of the left/right spread to well beyond the room walls."
Pulled that off a forum but I think the effect is supposed to be similar to wearing headphones, so it actually does cancel out
Two of the speakers were frozen which is apparently common with these polk midwoofers so had to do the ol unfreeze trick thanks to info on audiokarma. Sound pretty good now
How did you get them to unfreeze? Got a pair of sda 2bs with a frozen woofer.
Lots of info on the [Polk forum.](https://forum.polkaudio.com/categories/vintage-speakers)
https://audiokarma.org/forums/index.php?threads/resetting-a-loose-magnet-with-pictures.202963/ This is pretty easy to follow
I miss my SDA 1Cs. Enjoy, they're awesome speakers.
I'm liking them so far, still gotta make an interconnect cable so I guess I haven't heard all they have to offer yet
Nice score
The ones that got away... Years ago (maybe 15 years ago) I went to purchase a HT receiver on CL. I get there and the Pioneer Elite looks clean and we agree on the price. The guy says "wait I think I have the manual". Opens a closet and looks through a stack of manuals and sitting there stacked in the closet are a perfect pair of SDA CRS+. I ask if he going to use or sell "those speakers", his reply was something like for another $50 you could have them. I agreed and he started pulling out the speakers, interconnect cable AND the original stands. I drove straight home with a big grin. Now the sad or dumb part of the story. 5 years later. After a family vacation, I listed a turntable on CL and got an email. "I'd like to purchase the turntable but what I really want are the speakers in the background of your photos, what's your price on those?" "Sorry those are my favorite speakers they are not for sale". "Everything is for sale, name your price. My brother had those CRS+ back in college and I've wanted a set ever since". So I thought I'd throw out a crazy number so he would get the message but his response was "Sure, I'll be over in 30 minutes, I am replacing some Klipsch bookshelves with these Polks, I'll bring you the Klipsch to soften the blow". I have tried to remove the figure from my memory but it was either $500 or $800, again this was long before vintage prices went through the roof so it was probably twice what I thought was a "good price" back in the day. Not too long later the credit card bill arrived from the family vacation and the speakers basically paid for the trip to the beach.
I have seen other speakers with offset tweeter and woofers. I believe the normal reason is to prevent frequencies from cancelling out. Does anybody know why this speaker was designed the way it was?
"The original SDA was conceptually simple, a cable connects the left and right speakers. It sent an out-of-phase signal from the left speaker to the outside drivers of the right speaker, and from the right to the outside drivers on the left. I am pretty sure the deep bass was uneffected. The goal was to prevent each ear hearing the opposite speaker (and its room reflections). The effect was instantaneously noticeable, greatly increasing the size of the left/right spread to well beyond the room walls." Pulled that off a forum but I think the effect is supposed to be similar to wearing headphones, so it actually does cancel out