Polk Audio SDA SRS 1.2TL Crossover Modification Thread
VR3
Posts: 24,675
This one should be a lot of fun!
1) The speakers will be recorded stock!
2) Parts list is as follows -
Tweeter Network -Clarity Cap MR
Clarity Cap ESA
Mundorf Mox Resistors
Jantzen Inductors
Midbass/SDA Network -Clarity Cap ESA
Jantzen Inductors
Gimpod boards too
NL2 Connections for the SDA, Supra Rondo wire, Upgraded binding post
200 Hours or so of burn in
3) Record them modified!
This will be a fun project for sure!
1) The speakers will be recorded stock!
2) Parts list is as follows -
Tweeter Network -Clarity Cap MR
Clarity Cap ESA
Mundorf Mox Resistors
Jantzen Inductors
Midbass/SDA Network -Clarity Cap ESA
Jantzen Inductors
Gimpod boards too
NL2 Connections for the SDA, Supra Rondo wire, Upgraded binding post
200 Hours or so of burn in
3) Record them modified!
This will be a fun project for sure!
- Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
Post edited by VR3 on
Comments
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I'm all eyes on this one.
Good luck! -
Off to record these bad boys stock!
Still waiting on the inductors though to mod these!- Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
Also make note of the changes in spatial properties between the stock and modified versions."So hot it burns Mice!"~DK
"Polk SDA-SRSs are hopelessly out of date both sonically and technologically... I see no value whatsoever in older SDA speakers."~Audio Asylum Member
"Knowledge, without understanding, is a path to failure."~DK
"Those who irrationally rail against something or someone that is no threat to them, actually desire (or desire to be like) the thing or person they are railing against."~DK -
...in the results of this mod! (Especially since I own the pair to be modded)
Reagan -
You are replacing all of the inductors too?Off to record these bad boys stock!
Still waiting on the inductors though to mod these!POLK SDA 2.3 TLS BOUGHT NEW IN 1990, Gimpod/Sonic Caps/Mills RDO-198
POLK CSI-A6 POLK MONITOR 70'S ONKYO TX NR-808 SONY CDP-333ES
PIONEER PL-510A SONY BDP S5100
POLK SDA 1C BOUGHT USED 2011,Gimpod/Sonic Caps/Mills RDO-194
ONKYO HT RC-360 SONY BDP S590 TECHNICS SL BD-1 -
Yes, all board mounted and SDA- Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
...in the results of this mod! (Especially since I own the pair to be modded)
Reagan
Have you spent much time with the 1.2's before the mods? I'm interested in a before and after comparison given that you're using, among other components, Clarity Cap MR's.
You're investing some serious coin!"Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills/jantzen inductors, Gimpod's boards, Lg Solen SDA inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR BP's, upgraded IC Cable, Black Hole Damping Sheet strips, interior of cabinets sealed with Loctite Power Grab, AI-1 interface with 1000VA A-L transformer -
I've had the 1.2 TL's for about 10 years but am the original owner of SDA 1A's and 2'A's. I did the crossover upgrade on the 2A's and was quite pleased with the results. Reagan
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I've had the 1.2 TL's for about 10 years but am the original owner of SDA 1A's and 2'A's. I did the crossover upgrade on the 2A's and was quite pleased with the results. Reagan
Cool - looking forward to your impressions."Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills/jantzen inductors, Gimpod's boards, Lg Solen SDA inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR BP's, upgraded IC Cable, Black Hole Damping Sheet strips, interior of cabinets sealed with Loctite Power Grab, AI-1 interface with 1000VA A-L transformer -
POLK SDA 2.3 TLS BOUGHT NEW IN 1990, Gimpod/Sonic Caps/Mills RDO-198
POLK CSI-A6 POLK MONITOR 70'S ONKYO TX NR-808 SONY CDP-333ES
PIONEER PL-510A SONY BDP S5100
POLK SDA 1C BOUGHT USED 2011,Gimpod/Sonic Caps/Mills RDO-194
ONKYO HT RC-360 SONY BDP S590 TECHNICS SL BD-1 -
Most definitely!- Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
- Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
I would have to say we captured the imaging capabilities of the SDA really well.. - Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
Alright,
1.2TL recording posted - lets see if Soundcloud likes me tonight!
http://soundcloud.com/vr3mods/polk-audio-sda-srs-1-2tl-stock- Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
Sounds good to me.Who is singing?
Dan
Found it Thanks -
That is Millage Gilbert.
How do you feel we captured the SDA staging?- Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
From what I can tell with my computer speakers it sounds real good.I wish I could give some more helpful feedback than that,but on these speakers just not possible.
Dan -
I have another 1.2TL coming for modifications that is what I would describe as "Balls Deep"
Clarity Cap MR on the entire tweeter network, all 12uf and .25uf caps and the midbass/SDA is all ESA.
I am a little pumped about this!!- Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
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Of the recording?
I have a lot of opinions but I want to hear everyones opinions first... - Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
I am really thinking about putting the Clarity MR12's in my crossovers. I'm sure I will have to reconfigure my setup for them.
Maybe I just buy them and plan on doing a full point to point external crossover.. -
I have a brilliant idea to make the MR work and not even make it look like a mountain
Stay tuned!- Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
We *might* need more room! - Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
"Does this board make my caps look big?"
"I think we need a bigger board..."
Damn you Donkey Kong...stop throwing those barrels at me!"Some people find it easier to be conceited rather than correct."
"Unwad those panties and have a good time man. We're all here to help each other, no matter how it might appear." DSkip -
I can't wait to do the mod using the MR 12s... it is going to be SICK! - Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
Tony should build a new board. You know, his original seems to have gotten a bit cramped.Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
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1.2TL with ESA/Jantzen - half way done! - Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
All wired up! - Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro -
Who was it that said size doesn't matter?
Tom~ In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence. ~
~ I have found excellence ~
~ The best way to enjoy digital music reproduction is to never listen to good analogue reproduction ~
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Yeah those things are monsters! Three per crossover!! - Not Tom
"No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro
