Sda's For Home Theater?

00p225

Hi F1nut,

I'm running mine 6" from the wall, but they are on carpet with thick padding. I'll have to pick up some spikes. On my Psb's I had them on stands and screwed them through the carpet to my subfloor so my 3 year old wouldn't knock them over. The increase in bass was substantial.

Zane

F1nut

Zane,

After you spike them, report back with the results. I've got to say this also, the SDA's like power. At least 200 wpc of the high current type. Maybe a friend or local hi-fi shop will let you try out that kind of power. I think you'll find the bass to be much improved.

Jesse

00p225

I competly agree power wise. The old mac helps out alot in this respect, but it still isn;t quite enough in my opinion. A friend is running his sda srs's with a single hafler dh 500 which runs 250 wpc. These used mosfet output transistors, and the bass is phenominal. I'm talking the kind of bass that sounds like a very clean live performance. The kind that moves your insides and cleans out your sinus's......cleanly lol:)

Zane

racer4551

I might have just purchased a set of 1b's in super condition with original boxes and interconnect cable for 800.00 shipped:D

racer4551

What should i do,i know i am paying top dollar for this pair of sda 1b's, should i purchase these or pass? The deal is 800.00 shipped(100 shipping) so 700 for the pair .The pictures below are the sda's i am looking at.

madmax

That is for sure top dollar. I personally would keep an eye out for some 1C's for less. (I have no idea what the differences are other than looks).
madmax

racer4551

If you had to chose between sda 1a,1b,or 1c which model would be better and why? Or does it really matter?I would really like to have the big boys,1.2tl's, but really right now out of my price range with shipping and all when you do see a pair.I think to have the best of both worlds(home theater and 2 channel music)one of the three sda model listed above should satisfy mmy search for this combo based on there smaller footprint and their full range(musically) capabilities.I am hoping that these would take the place of my rti70's and fill the void for a better front soundstage,thats what i am after.Thanks for listening to my ramblings on here.

racer4551

One other thing,i just spoke to someone at sherbourn and they were unable to tell me if my amp was a common ground amp,so if i was to purchase the sda 1b's listed above ,they are probably the blade-blade connection so they cant be used with a non-common ground amp right?I really need to know what amp style i have here to know if i can use a blade-blade sda speaker .Are all the sda1a,1b,and 1c's blade-blade?And what would happen if connected to a non common ground amp ?

Tour2ma

The last 1C's I saw on ebay sold for $825, so I'm not sure what top dollar is for 1's.

F1nut

The 1A and 1B are blade/blade. The 1C is pin/blade.

"And what would happen if connected to a non common ground amp?"

KA-BOOM comes to mind.

Those 1B's sure look minty

racer4551

Just one thing comes to mind, KABOOM!

I really need to find out whether my amp is a common or non-common ground before i purchase these speakers because i dont want to hurt anything.From what i"ve read it probably is acommon ground amp but really need to make sure?

madmax

I have no experience with the 1A or 1B's. I have a lot of experience with the 1C's. The 1C's are the type of speaker that is worth keeping even after you have the bigger boys. I have written several threads about it so I won't go into it again. One thing that turns me off about the ones in your pic is that the slightest crush on one of the corners will turn your $800 investment into a $300 investment. If you look closely at the 1C's they are very different in build. (separate wood top and bottom with the rest covered by cloth). Also, it just seems like a lot for that model.

Look at the MX thread, his dad just bought perfect 1.2TL's and an amp worth maybe $750 for $1800. That would make the TL's go for maybe $250 more than your $800. Seems a little disproportionate to me.

madmax

285exp

Appreciate the help you guys gave me with my questions on the SDA SRS. I picked them up (with some help) a couple of weeks ago and used them to replace the 10B's in my home theater. The 90 wpc Denon seems to drive them pretty well, but I'll be on the hunt for a 200 wpc or more amp. Thanks again.

acdds

Are you sure those 1.2's VX just bought are tl's? I emailed him and I thought they were non-tl's.

racer4551

So come on all you sda hording mo fo's make me a deal on a pair of sda1b's or 1c's, I am ready to buy:D

disneyjoe7

Racer4551

Looks good I like to also work my 2 channel music up some, so still thinking I should buy speakers or amp ???

But for you to see if your reciever is common ground, I thinking this (do this low volume OK if this doesn't sound good) your speaker are Left - / +, Right -/+ now, so rewire your speakers like this Left + but move the - to the Right -, Right + but move the - to the Left. You are moving the - on both speakers if you reciever is common ground then there should not hear anything different.

The other way you check this is with a OHM meter the - on Left, and - Right should be low resistor less then .5 ohm or so.

Hope this helps you.

Originally posted by racer4551
I really need to find out whether my amp is a common or non-common ground before i purchase these speakers because i dont want to hurt anything.From what i"ve read it probably is acommon ground amp but really need to make sure?

racer4551

My new to me sda 1c speakers, yahooooooooo hope i made the right choice, cant wait to hear these!

racer4551

Another pic.......................spots are from his camera, not present in other pics

racer4551

My new to me sda1c's should finally after a delay be here on monday, cant wait to hear these speakers, i have never heard sda speakers before and am really eager to see how they are going to fit in as home theater and music speakers.The guy kinda pulled a fast one on me about shipping, he quoted me a shipping price of 200 through a shipping company that svs uses(bax globel) and said it was a little more expensive but safer but when he went there to ship they said that you had to be a registered business account so instead he shipped through fedex which costed only about a hundred, so i guess he made out.I had thought about emailing him about the difference but didnt know if it would be the best thing.,just hope speakers arrive ok and in good shape, dont need no problems right now.

disneyjoe7

Racer,

Hope your new speakers make it ok.

I but Fedex over UPS any day so let's hope for the best.

racer4551

Thanks disney, i hope they arrive intact too.I am also worried about amp causing problems, never could get a straight answer whether it is common ground or not,I am hoping it is a common ground.I am only getting a standard pin-blade sda interconnect with the speakers.I plan on just connecting to amp first without sda cable then using sda cable on very low volume to check compatability, Does anyone recommend a method or a way to connect so i dont damage anything just in case my amp is not common ground?And if needed does anyone have the modded interconnect to use with a non-common ground amp?

00p225

Hey Racer,

If you can get access to a multimeter, you can check continuity between the left and right channels on your amp. If they are common ground the meter will show a dead short, just like touching the - and + meter leads together. Go ahead and pm me for more detailed instructions, especially if you don't know how to use a multimeter.

Btw, Iv'e had my sda-1c's running for about 2 weeks in my home theatre setup and enjoy them very much, so much so in fact this is where they will be staying. I'm just watching movies in 2 channel mode on my HK Avr 500 and though it doesn't quite fill the room at normal volumes like having the rear/ side channels, the sound quality is so much better. Bump up the volume on the sda's though and they fill the room very well. I also ran them for a while on my old McIntosh 100 wpc amp on my vintage system and tried it out with a portable dvd player and the sound was extremely impressive, but the wife won't let me fill the living room with stereo equipment :-( Good luck and enjoy your new speakers!

disneyjoe7

Hello OOp225,

I think I need to thank you for your offer to Racer. Your help with his Common Ground checking using a meter even if he doesn't have or know how to use, has to be safer then my no meter checking above. Thanks again for you PM offer to Racer.

Originally posted by 00p225
Hey Racer,

If you can get access to a multimeter, you can check continuity between the left and right channels on your amp. If they are common ground the meter will show a dead short, just like touching the - and + meter leads together. Go ahead and pm me for more detailed instructions, especially if you don't know how to use a multimeter.

Btw, Iv'e had my sda-1c's running for about 2 weeks in my home theatre setup and enjoy them very much, so much so in fact this is where they will be staying. I'm just watching movies in 2 channel mode on my HK Avr 500 and though it doesn't quite fill the room at normal volumes like having the rear/ side channels, the sound quality is so much better. Bump up the volume on the sda's though and they fill the room very well. I also ran them for a while on my old McIntosh 100 wpc amp on my vintage system and tried it out with a portable dvd player and the sound was extremely impressive, but the wife won't let me fill the living room with stereo equipment :-( Good luck and enjoy your new speakers!

dorokusai

I bet those speakers sound pretty good

madmax

Good luck with the 1C's and yes, TELL him to refund the extra hundred HE talked you into!
madmax

PolkWannabie

Can someone please explain the differences between the 1's, 1A's, 1B's & 1C's?

racer4551

Well they made it finally, just got them home,had them delivered to work, havent got them out of the boxes yet, but the boxes are intact so thats a good thing. Thanks for the replys and the help on this purchase everyone, found out my amp is common ground so thats good, now if these speakers sound good i will be happy as a pig in shi......................:D Will post after i get them out of the boxes and fired up.

00p225

As far as I can tell, the sda-1's had the tweeters horizontaly mounted in the cabinets and used different 6.5" drivers than the later models. I also think one of the tweeters was also used in crosstalk cancelation. The sda-1b had the tweeters moved to vertical, but still had the crosstalk accross a wider frequency range. By the time the 1c's came out, Polk had found that just a narrow frequency range of crosstalk cancelation was needed.

Iv'e never heard the earlier models but the 1c's are supposed to sound the best. I will say compared to the original sda-srs, the 1c's seem to be less veiled, seem to be less touchy on listening postition, and have a very smooth polite sound. At first they seem really layed back, but they have less fatigue than one would think and can be listened to for hours. They will rip up the floor boards if you would want them to though!

One thing I do feel, it seems best to pair these with an amp with a very high dampening factor if sheer volume is your forte'. The drivers will flutter and even bottom out if your amp has poor bass control.

Oh, almost forgot, do get some spikes under these! I don't have them under mine yet, and have some pretty good padding under my carpet. Just after 2 weeks of settling into the carpet the bass has improved. I think spikes will really help the bass response!

racer4551

Well finally got the sda 1c's setup and in place.I have been listening to them in two channel and am kinda confused on their sound.They dont have a lot of bass response or am i spoiled by by the svs sub.I dont think they sound bad but am really disappointed in bass response.I went back to using the outlaw icbm for all bass management , placed inbetween the pre and the amp, and set the sda's xover at 40hz and the rest of the speakers to 80xover.This really did improve the bass response, but still sounds weak to me.In two channel direct,i have to bump up the bass control to +6 and the treble to +4 to get some dynamics out of the speakers(this is with the sub off and the icbm set to recombine). Maybe its a placement problem with where i have speakers,they are located alongside the ent. center ,out about two inches.Ihave included some pics showing their placement.Maybe not enough power..............?

F1nut

Just a quick observation, you're not going to get the kinda bass from the 1C's that you'll get from a sub, but you will get decent bass. Placement always matters, try playing around with that. How much and what kind of power is driving them?