Info on orig. SRS, 1.2, 1.2TL? Differences?
Comments
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Well, it's possible that Polk used the SRS label instead of the 1.2 label. It's been known to happen. What does the actual IC socket look like? Another way to tell what is what would be to pull out one stereo driver and one SDA driver. If they both say 6503, you have SRS's. If one says 6503 and the other says 6511 you have 1.2's.
I have to correct myself on one thing. Since your S/N's are higher than 5001, you can use the AI-1 with your speakers. Sorry for the lapse of memory.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 -
Mine were drop shipped from Polk in sping of 1988, SN SRS 5082, have the pin/blade connector, have different drivers but can't remember what the numbers are since I pulled them to inspect for a problem 20 years ago. I just know they are indeed different. Are these 1.2's? Is that a good thing? Which tweets in them.
Tubino - mine are only 6 numbers higher than yours. Cousins. The diagram shows 2 flats on the IC but pin/blade verified.
A point of interest - One of my speakers had no output from the dimensional array when I got it. The problem was an inductor wire that broke off the XO board during shipment. I re-soldered it and wrote a letter to M. Polk. He called me to appologize! I told him I was taking the speakers to Saudi and wanted to buy a grill, a set of drivers and a tweeter in case of shipping damage. He sent me everything for free. I still have the spare parts. That's customer service.'65 427 Shelby Cobra
'72 Triumph TR-6
__________________
'88 Polk SDA SRS 1.2, with upgraded XO caps and Erse SDA inductors
'86 Polk SDA CRS+
'84 Polk Monitor 10A (Peerless tweeters)
'05 HSU VTF-3 Sub (Original OEM)
'20 HSU VTF-3 Sub (three more, 100% cloned)
'93 Carver TFM-35
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'91 Kenwood Basic M1D Amp
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One PGA2310 based custom built remote volume control
Four Polk T-15's
Four Polk TSi-200's
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Two Polk CS-10's -
Well, it's possible that Polk used the SRS label instead of the 1.2 label. It's been known to happen. What does the actual IC socket look like? Another way to tell what is what would be to pull out one stereo driver and one SDA driver. If they both say 6503, you have SRS's. If one says 6503 and the other says 6511 you have 1.2's .
Exactly! Mine are 1.2's but it was a mystery for a while since the labels read "SDA-SRS 5330, and 5338." I pulled one of the outside drivers and it was a 6511 with "SRS 1.2" stamped on it. "Mystery" solved!
RobbieMain System: Polk SDA SRS 1.2 Speakers, Sunfire Signature 600~two Amp, Carver C-16 Preamp, Carver TX-11b Tuner, Marantz 6350Q TT, Philips CDR-775 Recorder, Teac V-707RX Cassette Deck, Signal Cable Double Run Speaker Cable
Upstairs Den: Marantz 2325 Receiver, Marantz 5220 Cassette Deck, Marantz HD-880 Speakers, Marantz 6370Q TT
Exercise (Kabuki speaker) Room: Kenwood KR-9600 Receiver, Pioneer CS-99a Speakers, Sansui SP-X9000 Speakers (not pretty, but LOUD! ) -
So it seems I have an early example of a 1.2, right? And if really want to know, I pull a driver or two, right?
THANKS for the help, guys! -
Correct.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 -
Always glad to help. You have the blade/blade cable as indicated by the interconnect cable diagram on the label, therefore you do have the SRS's. No mono block, dual mono or non-common ground amps for you.
seriously, no dual mono amps? Maybe that's why my old Pioneer amp keeps dying. interesting. :mad:PolkFest 2012, who's going>?
Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin: -
Seriously, most dual mono amps are non-common ground.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 -
Seriously, most dual mono amps are non-common ground.
The Parasound HCA-2200 is a common ground, dual-mono amp. It will hopefully be on the FM some time this year. :cool:
WesLink: http://polkarmy.com/forums
Sony 75" Bravia 4K | Polk Audio SDA-SRS's (w/RDO's & Vampire Posts) + SVS PC+ 25-31 | AudioQuest Granite (mids) + BWA Silver (highs) | Cary Audio CAD-200 | Signal Cable Silver Resolution XLR's | Rotel Michi P5 | Signal Cable Silver Resolution XLR's | Cambridge Audio azur 840C--Wadia 170i + iPod jammed w/ lossless audio--Oppo 970 | Pure|AV PF31d -
Seriously, most dual mono amps are non-common ground.
FAWK!!
so are they not usable with all SDA's or just SRS's?PolkFest 2012, who's going>?
Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin: -
Where have you been, bro? This info is plastered all over the site....lol.
Any SDA with the blade/blade cable should not be used with non-common ground amps, mono blocks or most dual mono amps. I don't know if your Pioneer is common ground or not, you'll have to check it.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 -
Any SDA with the blade/blade cable should not be used with non-common ground amps, mono blocks or most dual mono amps. I don't know if your Pioneer is common ground or not, you'll have to check it.
Checking it just means checking for continuity between L & R ground speaker terminals, right?
What I can't figure is, what if you have mono tube amps with NO feedback loop and no chassis ground from the output secondary... what harm could it do to connect the speaker grounds? The outputs are isolated from the rest of the circuit. -
Where have you been, bro? This info is plastered all over the site....lol.
Any SDA with the blade/blade cable should not be used with non-common ground amps, mono blocks or most dual mono amps. I don't know if your Pioneer is common ground or not, you'll have to check it.
Well actually NO SDA should be used with non-common ground amps, mono blocks or most dual mono amps. The catch is you have the option of purchasing (used) or making an AI-1 interphase cable IF you have a pin/blade model SDA speaker allowing you to run the above type of amps. Come on DB, this has been all over this board for a long time and many times. I've answered this question atleast 50 times during my short tenure here:).
H9
P.s. I know F1 knows that I was just adding more clarity for any noobs who stumble upon this post."Appreciation of audio is a completely subjective human experience. Measurements can provide a measure of insight, but are no substitute for human judgment. Why are we looking to reduce a subjective experience to objective criteria anyway? The subtleties of music and audio reproduction are for those who appreciate it. Differentiation by numbers is for those who do not".--Nelson Pass Pass Labs XA25 | EE Avant Pre | EE Mini Max Supreme DAC | MIT Shotgun S1 | Pangea AC14SE MKII | Legend L600 | BlueSound Node 3 - Tubes add soul! -
I even knew that.
"He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche -
Seriously, most dual mono amps are non-common ground.
Jesse, do you get some kind of satisfaction being the bearer of bad news to me?
with a non common ground amp if my dual mono is that... what would happen to it if used with SDA's? btw, when working the amp sounds really good with the SDA's.PolkFest 2012, who's going>?
Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin: -
Well actually NO SDA should be used with non-common ground amps, mono blocks or most dual mono amps. The catch is you have the option of purchasing (used) or making an AI-1 interphase cable IF you have a pin/blade model SDA speaker allowing you to run the above type of amps. Come on DB, this has been all over this board for a long time and many times. I've answered this question atleast 50 times during my short tenure here:).
H9
P.s. I know F1 knows that I was just adding more clarity for any noobs who stumble upon this post.
I know, I KNOW! but i didn't think dual mono amps fell into the non common grounding amp that wouldn't work with the SDA's. for some odd reason, i always seem to have SDA's that use the blade/blade connections.
was the pin/blade interconnect only used on select models of SDA's? or was the blade/blade only used on early models of SDA's, and then changed over the pin/blade later on?
this is so confusingPolkFest 2012, who's going>?
Vancouver, Canada Sept 30th, 2012 - Madonna concert :cheesygrin: -
Well actually NO SDA should be used with non-common ground amps, mono blocks or most dual mono amps. The catch is you have the option of purchasing (used) or making an AI-1 interphase cable IF you have a pin/blade model SDA speaker allowing you to run the above type of amps. Come on DB, this has been all over this board for a long time and many times. I've answered this question atleast 50 times during my short tenure here:).
H9
P.s. I know F1 knows that I was just adding more clarity for any noobs who stumble upon this post.
Correct, thanks H9.
I'll add another twist. You can, in some cases, tie the negative grounds together on an amp(s) to deal with the SDA requirements. Always check with the manufacturer first before doing that.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 -
I'll add another twist. You can, in some cases, tie the negative grounds together on an amp(s) to deal with the SDA requirements. Always check with the manufacturer first before doing that.
Yes, that was my question up above. Seems you'd be quite safe doing that in the case I gave above, where the secondaries of the output transformer are really isolated from the rest of the amp.
But yes, when you're talking about amplifiers that cost 5-10K/pair, it's probably wise to check with the manufacturer.
