Polk Monitor 10 Opinions?

westmassguy

voltz wrote: »

thanks Dave!

I went to the SDA Speaker identification page and seen what drivers was used in the SDA you listed and now I know why those combo would work

http://www.gimpod.com/sda-id.html

Franken-Polk 10/SDAs were my first SDAs. I already owned the 10s, read Ronnie's thread on his CRS+/10 conversion, and bought a pair of 2A crossovers for $20.00 off eBay. Not too long after that, bought my CRS+s. My real 2As came later.

HzTweaker

I'm going to take a crap shoot on a pair of crossovers (CRS+)... Could be fun.

westmassguy

HzTweaker wrote: »

I'm going to take a crap shoot on a pair of crossovers (CRS+)... Could be fun.

Have fun with it. Which CRS+ crossovers, 3rd or 4th generation?

heiney9

If the price is dirt cheap get them. They aren't the most focused speaker of the monitor line as side by side mid woofs create some issues. That said, if they are cheap enough and you have a place for them go for it.

Also, do a search as this subject has been covered many, many times. I would go into more detail about the side by side woofs but I have several times before......so get your search on for more in depth analysis.

H9

xschop

WMG, could you please point me in the right direction to "Ronnie's thread"? It would be a good read and great to know.

Is it also safe to assume that a converted set of M10's would have lower bass extension than CRS+?

Thanks again.

westmassguy

http://forum.polkaudio.com/discussion/129598/has-anyone-tried-this-before-sda-crs-10/p1

Larger cabinet, and tuned differently. Should go a little deeper.

TennMan

westmassguy wrote: »

http://forum.polkaudio.com/discussion/129598/has-anyone-tried-this-before-sda-crs-10/p1

Larger cabinet, and tuned differently. Should go a little deeper.

Thanks for posting the link to my old thread. I wasn't able to find it. I enjoyed reading through it again. I wish I still had my 10Bs. I would like to try the TL upgrade and the Erse inductors from my 2BTLs in them. Who knows... SDA 10BTLs might be the ultimate small SDA speaker.

xschop

I'm half way through the thread. Very informative and ingenuitive. Has or can anyone post the exact dimensions of the CRS+ drivers in relation to each other?

westmassguy

TennMan wrote: »

westmassguy wrote: »

http://forum.polkaudio.com/discussion/129598/has-anyone-tried-this-before-sda-crs-10/p1

Larger cabinet, and tuned differently. Should go a little deeper.

Thanks for posting the link to my old thread. I wasn't able to find it. I enjoyed reading through it again. I wish I still had my 10Bs. I would like to try the TL upgrade and the Erse inductors from my 2BTLs in them. Who knows... SDA 10BTLs might be the ultimate small SDA speaker.

Ronnie, just click on you own name, and on the right hand side, you'll find all the "Discussions" (AKA Threads) you started.

westmassguy

http://www.ebay.com/itm/POLK-SDA-COMPACT-REFERENCE-SPEAKER-PART-SW-SERIES-CROSSOVER-SET-W-MOUNTS-/272196294090?hash=item3f6029d5ca:g:jfsAAOSw6wRW~rj6

heiney9

xschop wrote: »

I'm half way through the thread. Very informative and ingenuitive. Has or can anyone post the exact dimensions of the CRS+ drivers in relation to each other?

This is where there will be an issue. IIRC, the dual mids in the 10's are closer together than the CRS+.

In order for the SDA properties to have maximum effect, the driver distance is critical.

To the op: FTR, I am against butchering perfectly good speakers to make them Franken-Polks. If you want SDA's find some CRS's.

But they are your speaker to do with what ever you want.

H9

xschop

I fully read the thread. I see Monitor 10's locally all the time but ZERO CRS's. So this is a great way to "acquire" some smaller SDA's. And since I have tools to make it happen, I would make a CRS+ baffle with their correct spacing and mount to the rear of the 10B's and plug the front 10B MW holes, which is simple even without fancy equipment because of their stepped cutouts.

TennMan

H9,
You need to go back and read the thread again too. Everything you mention about driver distances was covered in that thread. The 10Bs MW spacing is different from the CRS+ but it is the same as the MWs spacing in the 2Bs that I'm listening to right now. The crossovers are the same in the CRS+ and 2Bs. I don't think the spacing is a huge factor because if it was the 2Bs would have the wider spacing like the CRS+. I've not heard anyone say the 2B is an inferior design to the CRS+.

heiney9

You'll still need to build CRS crossover, position the tweeter properly (not sure how that is done in the scope of the SDA) and acquire the correct drivers.

You did a stellar job building the 10's from scratch, atleast the aesthetics. I'll take your word they sound good (even with a jacked up eq and ancient receiver). But this isn't a weekend build. It will take careful thought, planning and some $$$.

Good luck

xschop

If you are sweating 0.0003 sec difference in delivery, I would hate to be your Pizza guy.

pkquat

TennMan wrote: »

H9,
You need to go back and read the thread again too. Everything you mention about driver distances was covered in that thread. The 10Bs MW spacing is different from the CRS+ but it is the same as the MWs spacing in the 2Bs that I'm listening to right now. The crossovers are the same in the CRS+ and 2Bs. I don't think the spacing is a huge factor because if it was the 2Bs would have the wider spacing like the CRS+. I've not heard anyone say the 2B is an inferior design to the CRS+.

I have not yet read the thread, but I previously asked a question about the crossovers and driver spacing for the SDA line. The answer was, the driver spacing primarily effects where the sweet spot is relative to the speakers and listener distance triangle, along with the width of the listeners head. There was no time delay built into the crossovers. The only variation I could see would be the effect of the tweeter, but the tweeter and MW spacing varies on the SDA series as well.

xschop wrote: »

If you are sweating 0.0003 sec difference in delivery, I would hate to be your Pizza guy.

Call Jimmie Johns!!! Sorry, I couldn't resist.

heiney9

The delivery is what SDA's live and die on. So yes sweating a slight delay would be prudent.

I didn't read the original thread, just throwing out basic cautions. I also am aware that CRS's, 2's and SRS 2's 1C's all have a varying distance of the main and SDA driver, as well as the freq they covered. They did evolve over the generations.

I also wasn't aware there are many 2B crossovers being sold these days.

Again, good luck

H9

xschop

Well don't pass gas while listening to your SDA's because the pressure differential of the various gases will cause more sound delay than 0.0003s.

HzTweaker

westmassguy wrote: »

HzTweaker wrote: »

I'm going to take a crap shoot on a pair of crossovers (CRS+)... Could be fun.

Have fun with it. Which CRS+ crossovers, 3rd or 4th generation?

Thanks for the advice guys. I'm not exactly sure what generation they were. It wasn't stated in the description. I decided to not purchase the crossovers. The seller wanted to charge the same amount for shipping as the items them self. That put them a bit out of my idea price range.

Plus I got some unexpected news form my folks that is requiring me to adopt their German Sheppard puppy. So there is a new project/exprnse..

westmassguy

HzTweaker wrote: »

westmassguy wrote: »

HzTweaker wrote: »

I'm going to take a crap shoot on a pair of crossovers (CRS+)... Could be fun.

Have fun with it. Which CRS+ crossovers, 3rd or 4th generation?

Thanks for the advice guys. I'm not exactly sure what generation they were. It wasn't stated in the description. I decided to not purchase the crossovers. The seller wanted to charge the same amount for shipping as the items them self. That put them a bit out of my idea price range.

I saw that too. Typical for some fleaBay sellers to triple the real shipping charges.
It was a 4th Generation crossover.

xschop

WMG, were the 4th gen X-overs the same as the flea bay link you posted earlier?

westmassguy

xschop wrote: »

WMG, were the 4th gen X-overs the same as the flea bay link you posted earlier?

Yes, but the shipping is crazy high. A large flat rate box would hold both, and be less than half the shipping cost they listed, even with insurance.

xschop

Ok good. Shipping is reasonable when they're right next door.
I see in your sig that you have a set of CRS+, Do you mind posting the driver dimensions/ layout in respect to each other?

HzTweaker

Yes, but the shipping is crazy high. A large flat rate box would hold both, and be less than half the shipping cost they listed, even with insurance.

[/quote]

I'll keep an eye out for a pair. The project sounds like it could be fun to try. Maybe even upgrade the CRS+ x-overs for the project. But if the price is right. I'll consult you guys when the opportunity presents itself again to verify the gen of the x-overs for compatibility.

In the meantime I'm really looking forward to picking up the puppy this weekend.

akajimmy

I love my 10's. I picked them up 8 years ago for $80.00. Had to replace one driver in each, but very pleased with them.

Jimbo18

I avoid high shipping charges on eBay, even if the total is lower than the same item with free shipping. If you return the item, you only get back what you paid for it, and not the initial shipping charge.

I always assume the seller may send something faulty, or not matching the description and I might have to return it, in which case I only get part of my payment back.

westmassguy

xschop wrote: »

Ok good. Shipping is reasonable when they're right next door.
I see in your sig that you have a set of CRS+, Do you mind posting the driver dimensions/ layout in respect to each other?

The front of the CRS+ is 20" wide x 12 3/4" tall. The centerline of each woofer is 5" up from the bottom, and 5" in from each side. The center to center distance between the woofers is 10". The centerline of the tweeter is 4 1/4" up from the centerline of the woofers, or 9 1/4" up from the bottom, 5 1/2" down from the top.

xschop

Big thanks. 3 1/2 for down from top on tweet?

I wonder if the 40/40/100 geometry is the same on all other SDA's.

westmassguy

Sorry, 3 1/2"

voltz

Well I found some SDA 2B's that have been parted out, and i grab everything even the PR's. I put everything into my M10's (Crossovers and correct drivers in the correct place) (6503's inside and the 6511's on the outside) had to put the old Sl2000 tweeters back in as my 10's had a TL mod so I could use the RDO-198's but they won't work with the wiring harness and are not a match for the crossovers.

I will try them out this weekend