the next sda srs 1.2 tl
CLUBCARRERA
Posts: 25
this is what i am building i named them sound force 1.2S need help modifying the 1.2tl crossover design for two more tweeters the big woofer is a 18" that i removed the magnet and voice coil to make it a passive radiator
Post edited by CLUBCARRERA on
Comments
-
Shoving a bunch of drivers in a cabinet does not a great speaker make.
Many good folks here have attempted this and FAILED miserably. I am looking to build a set of new cases for mine, but the cabinet volume and front baffle, and speaker complement will absolutely remain untouched.
I am not trying to dissuade you, but rather to point out that spending several grand on a project like this is a bunch of money to spend on failure.The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
Good music, a good source, and good power can make SDA's sing. Tubes make them dance.
-
this is true but i did the math on air volume, drive size, and this why there a 18" passive and a call out on cabinet size the drivers are for each speaker 6-polk mw6503 6-mw6517 and tweets are 3000 the crossovers are a copy of the sda srs 1.2tl but with all update call outs better coils,400volt caps and 12 watt resisters all parts have been had on ebay and parts express cost so far with out cabinets is about $875.00 for the two speakers woofers are going to be wired series parallel same as the call out for polk 1.2 but will need to adjust ohm load from 4 drive to 6 drivers the help i need is the tweeter array each of the 4 tweeter on the 1.2 each are set to it own frequency so the easy way would be to have 2 tweeter act as one and adjust the ohm load and then play with it placement on the speaker harder way would be to split frequency of one tweeter to two that what i think would be better then play with the placement that what polk did if you look in to the srs 1.2 you will read that the tweeters are not 1,2,3,4 from top to bottom if i remember its 4,1,3,2 on placement other ideas i have is having the in side cabinet sprayed with rino liner or truck bed liner I will also need to play with the 18" fake sub cone wight for bass out put
-
I suggest you start with proper punctuation. We can work on paragraph structure after that.CLUBCARRERA wrote: »this is true but i did the math on air volume, drive size, and this why there a 18" passive and a call out on cabinet size the drivers are for each speaker 6-polk mw6503 6-mw6517 and tweets are 3000 the crossovers are a copy of the sda srs 1.2tl but with all update call outs better coils,400volt caps and 12 watt resisters all parts have been had on ebay and parts express cost so far with out cabinets is about $875.00 for the two speakers woofers are going to be wired series parallel same as the call out for polk 1.2 but will need to adjust ohm load from 4 drive to 6 drivers the help i need is the tweeter array each of the 4 tweeter on the 1.2 each are set to it own frequency so the easy way would be to have 2 tweeter act as one and adjust the ohm load and then play with it placement on the speaker harder way would be to split frequency of one tweeter to two that what i think would be better then play with the placement that what polk did if you look in to the srs 1.2 you will read that the tweeters are not 1,2,3,4 from top to bottom if i remember its 4,1,3,2 on placement other ideas i have is having the in side cabinet sprayed with rino liner or truck bed liner I will also need to play with the 18" fake sub cone wight for bass out put -
Your idea of a passive sucks!!!
-
realy ? so you must be smarter then me on this so tell me what right ?
-
CLUBCARRERA wrote: »realy ? so you must be smarter then me on this so tell me what right ?
**** much?Passive radiators are designed specifically to be passive radiators - not subwoofers with the parts ripped off. They work somewhat like ports - they are tuned to work best with the design in hand. Speaker design is not for the weak of heart, and if you don't have extensive experience and knowledge, you're going to get a massive, expensive **** that will take more to flush than its worth.
I wish you luck in whatever you decide, but the odds of success might be lower than winning the lottery. Not only are you trying to build a speaker from scratch, but you're trying to build a speaker with unique design principles in place, making the design challenge that much greater.
This^^^^^^^^ -
Your wasting your time, and will gain nothing, but a longing for your money back..
Your money would be better spent buying a set of 1.2's/1.2tl's and upgrading the components... -
Epic fail.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 -
The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD
“When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson -
you are right but if we do not try we can not move on to some thing great take the 18" passive radiator i was looking to buy one the cheapest was 270 bucks so for 52 bucks bought a new 18" sub off ebay that look like just like 6.5" polk add a stiffer spider for 8 buck add epoxy glue for 10 cut the the spider on the new 18" to get at the screws for the magnet and voice coil remove them line up the new spider glue it back together for the hole on the voice coil was 2" so the lid off a wd40 can fixed that total cost 70 bucks besides if it in end up sounding bad i will gust copy build 1.2tl cabnets and sell all the extra drivers
-
CLUBCARRERA wrote: »you are right but if we do not try we can not move on to some thing great take the 18" passive radiator i was looking to buy one the cheapest was 270 bucks so for 52 bucks bought a new 18" sub off ebay that look like just like 6.5" polk add a stiffer spider for 8 buck add epoxy glue for 10 cut the the spider on the new 18" to get at the screws for the magnet and voice coil remove them line up the new spider glue it back together for the hole on the voice coil was 2" so the lid off a wd40 can fixed that total cost 70 bucks besides if it in end up sounding bad i will gust copy build 1.2tl cabnets and sell all the extra drivers
You should have used the top from a can of black paint as it has greater density.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 -
wow ! really everyone on this site is a expert yet not one helping hand ? well I think my speakers look petty cool and I bet they will sound great to me that's all that matters thanks everyone for you nice help full commits
-
Helpful suggestions have been made, the problem is you aren't listening. You don't even understand why you can't take a 18" woofer and turn it into a PR, so what's the point.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 -
ok go buy or look at polk or jbl passive radiator and there normal speaker its the same parts less the magnet and voice coil the only part that add is a card board disk to plug hole of the missing voice coil they are some times call sub woofers because they transfer sub sonic frequencies in fact that all they can do with no voice coil some do add wights or stiffer spider to tune them to mach the speaker design some one is building
-
ok I am listing both ears are open ! why can I not make 18" woofer into a pr on my bench right now i have a 18" jbl pr and a 18" jbl woofer from a jbl speaker both have the same basket and same cone and spiders in fact the basket on the pr have holes drilled and taped for the magnet both have cone damage when i went to order the new cones the pr and the woofer have the same part numbers the only thing i can see is a 1/8 inch card broad disk on the pr to plug the hole for the voice coil so please ex plane
-
nice job ! have looked and read all about this and you the coils you used the caps testing and i am now understanding whats going on ! here i am defacing a well loved art work!!!! its like trying to put a cheve engine in a porsche i have a porsche repair shop i know but what every ones does not under stand is i am trying to build it better how would you do it ?
-
They wouldn't. Because they know better.... Matthew polk is not called a genius for no reason.
-
MY hats off to you for trying. I would like to see a newer updated better design, just like the 198/194 tweeters are an upgrade there should be better Mw drivers from someone than what we have, I just don't know if it would be worth it.CLUBCARRERA wrote: »nice job ! have looked and read all about this and you the coils you used the caps testing and i am now understanding whats going on ! here i am defacing a well loved art work!!!! its like trying to put a cheve engine in a porsche i have a porsche repair shop i know but what every ones does not under stand is i am trying to build it better how would you do it ?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 -
moving on polk 1.2 tl subject poly switch the upgrade info calls out for a jumper or resistor .1 to.5 ohm what works ! and why also i have a nice set of 3.1tl what should i sell them for or ask?
-
so my driver for this is my mint sansui g9000 160 watts pre at .01
-
there should be better Mw drivers from someone than what we have
Why? Doped paper cones are excellent and known for their natural sound.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 -
why can I not make 18" woofer into a pr on my bench right now i have a 18" jbl pr and a 18" jbl woofer from a jbl speaker both have the same basket and same cone and spiders in fact the basket on the pr have holes drilled and taped for the magnet both have cone damage when i went to order the new cones the pr and the woofer have the same part numbers
Polk's PR is specifically designed as a PR, not some hack job like it appears JBL did.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 -
Man at the ignorance around here sometimes...
Let me first say that I would (as others have already mentioned) not spend any time on the proposed project. If you want a better sounding ( I realize that is personal preference), more accurate, SDA then you should go smaller and not larger. The more drivers you add the more the sound is cluttered. If you simply want more bass, design or purchase an exceptional sub. Check out DIY audio for some ideas and to see what some others have done. Tremendous output down to 10hz can be achieved if that is yiour goal. For me I belive part of the reason i prefer the 2 series is due to the driver/ cabinet vol/ passive are/ ratios. I agree with your notion that could be improved in the larger cabinet models but don't belive it to be worth the effort or cost in doing so. As someone else has said, better drivers are easily available than what the older SDA's contain; driver technology has come a long way in the past decade. To that same end, so has cabinet technology, and the huge front baffle of the SDA's is one of its weakest links. Unfortunately, with the technology there is little that can be done (other than going with the smaller versions). If you just want to build something that is BADASS, then go fo it. It will definately look cool and may end up sonding good to you and as you said that is what matters. I believe that the SDA technology and what you propose doing with it will not work well enough to justify the effort and money you will spend on it. This is just my opinion.
On the other hand some of the experts here are arguing points that are simply not true because the ideas don't match their pre-concieved idea of what things are or should be.
My basic point is that the idea appears to be a bad one, but so are some of the arguments being made.If con is the opposite of pro, is Congress the opposite of Progress?!
Monitor 5Jr, Monitor 5, RTA12, RTA 15TL, SDA 2A, 1c, SRS 2, 1.2TL, CRS, Atrium. -
I'd be curious to hear you elaborate on this point.
Me too.....also the "more drivers the more the sound gets cluttered" statement.HT SYSTEM-
Sony 850c 4k
Pioneer elite vhx 21
Sony 4k BRP
SVS SB-2000
Polk Sig. 20's
Polk FX500 surrounds
Cables-
Acoustic zen Satori speaker cables
Acoustic zen Matrix 2 IC's
Wireworld eclipse 7 ic's
Audio metallurgy ga-o digital cable
Kitchen
Sonos zp90
Grant Fidelity tube dac
B&k 1420
lsi 9's -
Same here. The Polk drivers are unique to say the least. Would cast frames and exotic cone materials have been better? Sure, but the SDAs would have been 2-3 time more expensive to build. I have yet to find (and I've searched quite a bit) any 6.5 " driver that even comes close to the TS Parameters of the older drivers. The FS and VAS are off the chart for a woofer of that size, and doped paper cones are quite good for the intended purposeI'd be curious to hear you elaborate on this point.Home Theater/2 Channel:
Front: SDA-2ATL forum.polkaudio.com/discussion/143984/my-2as-finally-finished-almost/p1
Center: Custom Built forum.polkaudio.com/discussion/150760/my-center-channel-project/p1
Surrounds & Rears: Custom Built forum.polkaudio.com/discussion/151647/my-surround-project/p1
Sonicaps, Mills, RDO-194s-198s, Dynamat, Hurricane Nuts, Blackhole5
Pioneer Elite VSX-72TXV, Carver PM-600, SVS PB2-Plus Subwoofer
dhsspeakerservice.com/ -
THANK YOU ALL FOR THE FEED BACK! ON THE POINT MADE ABOUT ADDING MORE DRIVERS WOULD CLUTTER THE SOUND THEN PLEASE TELL WHY MOST OF THE BIG HIGH END SPEAKER COSTING 20K OR MORE ARE ALL GOING THAT WHY HELL AT SPEAKER SHOW AND TELL THERE WHERE A SET OF McIntosh SPEAKER WITH 64-3" DRIVERS AND 32- TWEETERS ASKING 60K FOR EACH SPEAKER AND THEY SOUNDED GREAT! IN FACT MOST ALL WHERE THAT WAY HERE IS WHAT I THINK ! AND IT ALL COMES DOWN TO ONE THING TO BUILT THE BEST SPEAKERS TEAM WORK ! ALL THE PARTS WORKING PERFECT FOR EACH OTHER THATS WHAT MAKES GREAT SOUND
-
If you would "QUIT YELLING" at us!!
Just do your homework and give it a shot, then come back and tell us how it turns out.. It's your money, you don't need our approval... -
CLUBCARRERA wrote: »THANK YOU ALL FOR THE "FEED BACK!" ON THE POINT MADE ABOUT ADDING MORE DRIVERS WOULD CLUTTER THE SOUND THEN PLEASE TELL WHY MOST OF THE BIG HIGH END SPEAKER COSTING 20K OR MORE ARE ALL GOING THAT WHY "HELL AT SPEAKER SHOW" AND TELL THERE "WHERE" A SET OF "McIntosh" "SPEAKER" WITH 64-3" DRIVERS AND 32- TWEETERS ASKING 60K FOR EACH SPEAKER AND THEY SOUNDED GREAT! IN FACT MOST ALL "WHERE" THAT WAY HERE IS WHAT I THINK ! AND IT ALL COMES DOWN TO ONE THING "TO BUILT" THE BEST SPEAKERS TEAM WORK ! ALL THE PARTS WORKING PERFECT FOR EACH OTHER THATS WHAT MAKES GREAT SOUND
This is all jumbled garbage, I think you should spend your money on going back to school. "Seriously" this is hard to read, and I am the first to admit that I don't type the best, but my god that is terrible..
I think your post is the biggest red flag to leaving the speaker building to someone else.. -
THERE WHERE A SET OF McIntosh SPEAKER WITH 64-3" DRIVERS AND 32- TWEETERS ASKING 60K FOR EACH SPEAKER AND THEY SOUNDED GREAT!
They sounded like crap to me.
If you want to hear a done right, none SDA speaker check out one of the upper end Sonus Fabers.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
