The type of interconnect socket is the determining factor of what they are.
Blade/blade = Original SDA SRS (non-compatible with Dreadnaught or AI-1).
Pin/Blade = SDS SRS 1.2 The speakers either have the RD0-194's or they been TL'd depending if the RD0-198 tweeters are installed along with the appropriate changes to the crossover) or they are SDA SRS 1.2TL with the RD0-198's. Dreadnaught or AI-1 compatible.
So, I pestered the owner for a pic of the SDA connection and this is what he added to the auction...
The type of interconnect socket is the determining factor of what they are.
Blade/blade = Original SDA SRS (non-compatible with Dreadnaught or AI-1).
Pin/Blade = SDS SRS 1.2 The speakers either have the RD0-194's or they been TL'd depending if the RD0-198 tweeters are installed along with the appropriate changes to the crossover) or they are SDA SRS 1.2TL with the RD0-198's. Dreadnaught or AI-1 compatible.
So, I pestered the owner for a pic of the SDA connection and this is what he added to the auction...
And now he's added this...
They are 1.2's at the least because they have the pin/blade socket, however, the next question is...are the tweeters RD0-198's, if so they would be 1.2TL's ...if they're RD0-194's they're 1.2's but can be converted to 1.2 TL's. Easy way to find out is to remove a tweeter and if the white negative post is larger than the colored positive post they're RD0198's.
What's up with the socket further down? Looks like a microphone socket. SMH
SDA SRS 1.2TL's
SDA 1C's w/Clarity Cap ESA; PA, Mills, RD0194-1's
SDA 2B TL's w/RD0198-1's
Yaqin MC-30L integrated tube amp
Yaqin MS-20L integrated tube amp
[/quote]
They are 1.2's because they have the pin/blade socket but what's up with the socket further down? SMH
[/quote]
He said he connected using that XLR JACK and it didn’t affect the sound. I asked him to take a pic of the binding posts so I could see the SDA jack and he realized that he show try connecting the SDA cable correctly. So, he wants to hear the SDA effect before he sells them.
He also did the leak test and the drivers moved back in about a second.
The Binding post nuts need to be reversed because the 1.2 and 1.2 TL is the opposite of the original SRS. The label on the back of the speakers show that the positive is on the right but that is incorrect since these are 1.2's. Polk was Notorious for using old stock on newer models. For once you don't want to follow the label directions LOL
Once the seller reverses the wires he will notice a major improvement in bass, as it is now, the speakers are out of phase.
SDA SRS 1.2TL's
SDA 1C's w/Clarity Cap ESA; PA, Mills, RD0194-1's
SDA 2B TL's w/RD0198-1's
Yaqin MC-30L integrated tube amp
Yaqin MS-20L integrated tube amp
I wanna buy 'em cause the cabinets look great(way better than mine).... but the WAF of having two sets of these in the house... even for a few months
Spongebob...this one is a softball...
"Honey, I only got these because I want to make you happier about my speakers. These are SO much better looking than my current pair and I'll sell the old ones in a couple months and break even."
I wanna buy 'em cause the cabinets look great(way better than mine).... but the WAF of having two sets of these in the house... even for a few months
Spongebob...this one is a softball...
"Honey, I only got these because I want to make you happier about my speakers. These are SO much better looking than my current pair and I'll sell the old ones in a couple months and break even."
Boom. Done.
Most of the time WAF will defy logic.
If the telephone doesn't ring ......... it's me
Harry / Marietta Georgia
Check the other thread. I think he sold them already and most likely the voice coils were trashed due to some high current flow, maybe a lightning strike or amplifier malfunction. Do you have any plans on how to fix MW's with bad voice coils. We know you can fix the tweeters and make them better to boot
George / NJ
Polk 7B main speakers, most mods comp. (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Crown D150 amp
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
Ha ha these sound strangely familiar. Most likely all 3 drivers are blown in the speaker that doesn't work.
You are correct. I took a chance on them, and all three are indeed blown.
I think they're a bigger project than I want to tackle at the moment. If anyone in the area wants them for parts, let me know.
I see the crossovers fairly often on eBay. You may have a damaged inductor or two in that speaker that doesn't work, in addition to fried voice coils in all the drivers. The SDA 2B and the CRS+ use the same crossovers. You could probably find an inductor with the same inductance and resistance and you could replace them in matched pairs on both XO's also if you wanted.
George / NJ
Polk 7B main speakers, most mods comp. (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Crown D150 amp
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
Comments
https://hanford.craigslist.org/ele/d/riverdale-polk-audio-sda-speakers/7215751096.html
https://inlandempire.craigslist.org/ele/d/hemet-polk-audio-sda-srs-31tl-speakers/7214425263.html
So, I pestered the owner for a pic of the SDA connection and this is what he added to the auction...
And now he's added this...
What's up with the socket further down? Looks like a microphone socket. SMH
SDA 1C's w/Clarity Cap ESA; PA, Mills, RD0194-1's
SDA 2B TL's w/RD0198-1's
Yaqin MC-30L integrated tube amp
Yaqin MS-20L integrated tube amp
They are 1.2's because they have the pin/blade socket but what's up with the socket further down? SMH
[/quote]
He said he connected using that XLR JACK and it didn’t affect the sound. I asked him to take a pic of the binding posts so I could see the SDA jack and he realized that he show try connecting the SDA cable correctly. So, he wants to hear the SDA effect before he sells them.
He also did the leak test and the drivers moved back in about a second.
He did confirm the tweets are all RD-0194s.
Once the seller reverses the wires he will notice a major improvement in bass, as it is now, the speakers are out of phase.
SDA 1C's w/Clarity Cap ESA; PA, Mills, RD0194-1's
SDA 2B TL's w/RD0198-1's
Yaqin MC-30L integrated tube amp
Yaqin MS-20L integrated tube amp
https://www.ebay.com/itm/233753356447
SDA-2(A?) in NJ for $250 with "make an offer."
I wanna buy 'em cause the cabinets look great(way better than mine).... but the WAF of having two sets of these in the house... even for a few months
Spongebob...this one is a softball...
"Honey, I only got these because I want to make you happier about my speakers. These are SO much better looking than my current pair and I'll sell the old ones in a couple months and break even."
Boom. Done.
Most of the time WAF will defy logic.
Harry / Marietta Georgia
https://kansascity.craigslist.org/ele/d/olathe-polk-audio-sda-2b-speakers/7219530424.html
Polk 7B main speakers, most mods comp. (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Crown D150 amp
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
Check the other thread. I think he sold them already and most likely the voice coils were trashed due to some high current flow, maybe a lightning strike or amplifier malfunction. Do you have any plans on how to fix MW's with bad voice coils. We know you can fix the tweeters and make them better to boot
Polk 7B main speakers, most mods comp. (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Crown D150 amp
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
I'd taken the MW drivers as long as they ohm out....
I hope your life insurance is paid up!
You are correct. I took a chance on them, and all three are indeed blown.
I think they're a bigger project than I want to tackle at the moment. If anyone in the area wants them for parts, let me know.
Belles 21A Pre modded with Mundorf Supreme caps
B&K M200 Sonata monoblocks refreshed and upgraded
Polk SDA 1C's modded
Wireworld Silver Eclipse IC's and speaker cables
https://forum.polkaudio.com/discussion/192261/sda-2b-crossover-help#latest
Polk 7B main speakers, most mods comp. (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Crown D150 amp
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're probably right. They could be a decent starting point for a full rebuild. Gonna need to shop for a lot of parts.
Polk 7B main speakers, most mods comp. (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Crown D150 amp
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
Polk 7B main speakers, most mods comp. (1979, orig owner)
Martin Logan Dynamo sub w/6ft 14awg Power Cord
Crown D150 amp
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
Check out this:
https://www.ebay.com/itm/POLK-AUDIO-MW-6503-WOOFER/193724164632?epid=1917927380&hash=item2d1adc2a18:g:pqkAAOSwLYdflds8
And this:
https://www.ebay.com/itm/2-Polk-Audio-MW-6511-6-5-SDA-drivers/143799171712?hash=item217b193a80:g:~SgAAOSw1P1fkGxW