Search:

Yes, I still have the same parts in my 15TLs.

Excellent! Glad to hear you like the modifications.

So it sounds like you guys are pleased with how the crossover modifications improve the sound. I like the RTA 15TLs too, and I still have the pair I modified back in early 2007.

VR3, how much do...

I'm interested in:

1 pair of 15" rings
1 pair of 10" rings

Thanks,
Brian

Sorry, I just saw your post. There's no need to worry about swapping the passive radiators. I ultimately reinstalled the originals. Feel free to experiment, if you like, and let us know your...

No, I'm sorry. I posted everything I have online. There are very few parts for the RTA 15TL, so it should be pretty easy to figure out which components to replace. All the originals parts except...

Agreed. No problems there.

Have fun. Let me know how your modifications turn out.

Reverse the wires going to the tweeter.

Larry, I have not received a response from you. Do you still wish to sell me these rings?

I just resent the PM. If it's still not there, just PM me. You know I am interested.

PM sent.

I also own the RTA 15TL's and like them very much. A while ago I started this thread: http://www.polkaudio.com/forums/showthread.php?t=48075

It contains info about modifications to the crossover...

Hi Larry,
I'm also interested in purchasing some rings. I tried sending you a PM, but I'm not sure if it went through. Please drop me a line.

Thanks,
Brian

I'm glad to hear you are (mostly) pleased with the mods. If they are still dull-sounding to you after the break-in period, you can try removing the 0.5 ohm resistor.

My crossover mod is not for the RTA 11T nor the RTA 11TL. I never owned a pair of them and have no way of verifying the sound quality. I imagine the mod will not sound correct, given that that 11s...

That's great! I'm glad you are pleased with them.

Glad your first impressions are positive. Drop us a line again after the break-in period is over.

(I see that you did not use the 0.5 ohm resistor in the tweeter circuit. If you feel the...

I recommend inverting the polarity of the tweeters. However, you might as well try it both ways and pick what sounds best to you.

With second order crossovers, there is an approximate 180 degree difference between the phase of the high-pass and low-pass sections. Since the acoustic centers are (roughly) aligned, inverting the...

Hi Ricardo,



The original design has either 1.5 or 2.0 ohms in parallel with the cap. This RC circuit shaves off some of the tweeter's low end. It seems that the RD0198-1 goes lower than the...

The difference is small. With a 1.8 mH inductor, the drivers will start rolling off at a slightly lower frequency. Nothing to worry about...

Like the others have said, the Peerless tweeter will not work. I don't think it will fit properly in the cut-out. The mod was designed for the RD0198-1, so it probably won't sound right with the...

I had also seen this discrepancy between the schematic and actual crossover in 2 pairs of 1.2tl's. Adding that resistor in parallel with the cap gives the tweeter more signal at the low end of its...

Yes, they can be converted. I have converted mine, and then modified the conversion to sound as close as possible to the 1.2tl. The original thread can be found here:...

No, I have tried the SL3000 with the modified crossover, and it does not sound as good as the RD0198-1.