Vintage Monitor and SDA Speaker Deals
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North of Charlotte NC.
300.00.
They look MINTY...
https://www.facebook.com/commerce/listing/966307343985648/?media_id=0&ref=share_attachment
Most people just listen to music and watch movies. I EXPERIENCE them.
“Anger is an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured.”
--Mark Twain.
“If at first you don't succeed, then skydiving definitely isn't for you.” - Steven Wright -
Another spin on some classic Polks.

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Another spin on some classic Polks.

If you close your eyes I bet they would sound good....SDA SRS 2.3tl, SDA 1C, SDA 2B (TL mod), Reserve 200 -
SDA SRS 2.3tl, SDA 1C, SDA 2B (TL mod), Reserve 200
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Nice, are they pin/blade or blade/blade?
Can these be TL'd? -
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That’s a really good price imho
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Nice, are they pin/blade or blade/blade?
Can these be TL'd?
I guess you would have to ask Bryan.SDA SRS 2.3tl, SDA 1C, SDA 2B (TL mod), Reserve 200 -
Thinking about picking up these RTA12 the guy selling them has no idea what was done to the XO.
He wants $150
Should I get them?
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Hell if they will clean up good why not ?
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Hell if they will clean up good why not ?
Ok sounds good, I just didn't wanna pick up a project that was botched up. -
Check the drivers....
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Well.....it might help to have some more info/pictures. Remember this is the early one that has the lobing and combing issues. Check out @Jazzhead discussion on his mods that he has done, including replacing the XO with one from RTA12B iirc.
PS: Or is it the early one? Seems to me the early one didn't have the beveled tweeter surround but just had the tweeter hanging out by itself vertically. Are you sure this is the RTA12 and not the RTA12B or C?George / NJ
Polk 7B main speakers, std. mods+ (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Onkyo A-8017 integrated
Logitech Squeezebox Touch Streamer w/EDO applet
iFi nano iDSD DAC
iPurifier3
iDefender w/ iPower PS
Custom Steve Wilson 1m UPOCC Interconnect
iFi Mercury 0.5m OFHC continuous cast copper USB cable
Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
Custom Vibration Isolation Speaker Stands and Sub Platform -
Refer to @Gardenstater 's advice before anything I would say. He has more knowledge about these speakers than I.
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Gardenstater wrote: »Well.....it might help to have some more info/pictures. Remember this is the early one that has the lobing and combing issues. Check out @Jazzhead discussion on his mods that he has done, including replacing the XO with one from RTA12B iirc.
PS: Or is it the early one? Seems to me the early one didn't have the beveled tweeter surround but just had the tweeter hanging out by itself vertically. Are you sure this is the RTA12 and not the RTA12B or C?
I asked for more photos. Seller sent these.


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Seller doesn't know how to take good pictures lol
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Yeah for crappin out loud, I can't tell if it is a Peerless or an RDO!George / NJ
Polk 7B main speakers, std. mods+ (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Onkyo A-8017 integrated
Logitech Squeezebox Touch Streamer w/EDO applet
iFi nano iDSD DAC
iPurifier3
iDefender w/ iPower PS
Custom Steve Wilson 1m UPOCC Interconnect
iFi Mercury 0.5m OFHC continuous cast copper USB cable
Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
Custom Vibration Isolation Speaker Stands and Sub Platform -
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I think, because of the fuse, these are probably RTA12B and that is probably a Peerless tweeter. Those Axon caps are metallized polypropylene on the low end cost wise and are made by the same maker of Solens. If all the drivers are good, $150 seems like a terrific price.George / NJ
Polk 7B main speakers, std. mods+ (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Onkyo A-8017 integrated
Logitech Squeezebox Touch Streamer w/EDO applet
iFi nano iDSD DAC
iPurifier3
iDefender w/ iPower PS
Custom Steve Wilson 1m UPOCC Interconnect
iFi Mercury 0.5m OFHC continuous cast copper USB cable
Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
Custom Vibration Isolation Speaker Stands and Sub Platform -
Gardenstater wrote: »I think, because of the fuse, these are probably RTA12B and that is probably a Peerless tweeter. Those Axon caps are metallized polypropylene on the low end cost wise and are made by the same maker of Solens. If all the drivers are good, $150 seems like a terrific price.
Awesome, right on, I'll check them out this weekend.
Thanks again everyone. -
I am almost certain that tweeter is an RD-0
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Yeah you're right. I brightened the picture and you can see the circular polk audio indented graphic. The early RTA12C came with the SL1000 and it did have a fuse, so maybe the owner replaced the SL1000 with an RDO-194-1.

George / NJ
Polk 7B main speakers, std. mods+ (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Onkyo A-8017 integrated
Logitech Squeezebox Touch Streamer w/EDO applet
iFi nano iDSD DAC
iPurifier3
iDefender w/ iPower PS
Custom Steve Wilson 1m UPOCC Interconnect
iFi Mercury 0.5m OFHC continuous cast copper USB cable
Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
Custom Vibration Isolation Speaker Stands and Sub Platform -
Gardenstater wrote: »Yeah you're right. I brightened the picture and you can see the circular polk audio indented graphic. The early RTA12C came with the SL1000 and it did have a fuse, so maybe the owner replaced the SL1000 with an RDO-194-1.

How can I tell? Any markings I should look for?
Sorry I am a noob. -
It helps to squint, for me at least 🤣 The RD0-194-1 has that circular polk audio and you can see it in the photo. The speaker itself should probably say RTA12C on the XO/binding post cup. If the owner replaced an SL1000 they would've had a cutout that was too small. They probably didn't enlarge the cutout and probably just screwed it on anyway. You can kind of see how the top of the tweeter plate is right up at the top of the tweeter baffle near the bevel.George / NJ
Polk 7B main speakers, std. mods+ (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Onkyo A-8017 integrated
Logitech Squeezebox Touch Streamer w/EDO applet
iFi nano iDSD DAC
iPurifier3
iDefender w/ iPower PS
Custom Steve Wilson 1m UPOCC Interconnect
iFi Mercury 0.5m OFHC continuous cast copper USB cable
Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
Custom Vibration Isolation Speaker Stands and Sub Platform -
You can see the SL1000 and the fuse on the RTA12C XO picture on p. 2 in the sales brochure https://polksda.com/pdfs/1985Sales.pdfGeorge / NJ
Polk 7B main speakers, std. mods+ (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Onkyo A-8017 integrated
Logitech Squeezebox Touch Streamer w/EDO applet
iFi nano iDSD DAC
iPurifier3
iDefender w/ iPower PS
Custom Steve Wilson 1m UPOCC Interconnect
iFi Mercury 0.5m OFHC continuous cast copper USB cable
Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
Custom Vibration Isolation Speaker Stands and Sub Platform -
Thanks!
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I like peerless just as good if not better than the RD0-194-1 myself as far as sound gos but if it's a SL- 1000 (peerless copy ?) From what I understand they do not sound so hot.
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Good price in North Carolina for 2.3’s. Based on the description, think they might belong to somebody here. 🤷🏻♂️

https://www.facebook.com/groups/audiofleamarket/permalink/4741975475839250/?ref=facebook_story_shareCurrent Collection: Monitor 4a (Peerless), Modified Monitor 7b (Peerless), RTA15TL (SL3000), Full mod SDA CRS 4.1TL (198’s), SDA SRS 2.3TL (198’s), R100's, R200’s, R300 🤩 -
I ALMOST went to look at these when they were for sale up the road a bit, but Steve ( a great guy) DID go and buy them.
He found me somehow and he came over to listen to my SDA-SRS2's to hear how the SDA was supposed to sound like. We talked for quite a while about audio and Polk speakers.
I just emailed him to touch base again. I really don't have the space right now or I'd be running to get these.Most people just listen to music and watch movies. I EXPERIENCE them.
“Anger is an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured.”
--Mark Twain.
“If at first you don't succeed, then skydiving definitely isn't for you.” - Steven Wright









