Second speaker done.
Good results. Sound is much smoother with more clarity. Theres a bit more detail and the dynamics have improved. I could go on but ill simply say: They sound much better!
Reccomend to anyone with RTL2's to do this mod, even if you have the standard Tweeters. Its easy, cheap and bring big gains. Good value mod I say.
Next I want to get them measured properly so I can see whats happening regards frequency response and phase. I like the sound and theres definately improvements. However, with the diferent Tweeter the only way to acheive 'optimum' results is with a new crossover. The likleyhood is that the Bass sectiuon can stay as-is, allbeit with better components. The treble section may only need minor alterations.
I fitted the Morel tweeter as Wilmslow audio reccomended it. They must have checked it for compatibility with the RTL crossover but looking at the manufacturers response plots for each tweeter there is clearly quite a difference. The original tweeter is a Vifa D20TD-05, quite a different beast to the Morel MDT30s. Anyway, to my ears it seems like ive been quite lucky in my estimation.
By the way, the extra damping material makes a big difference too. 'Deadsheet' from Wilmslow audio and a layer of dimple foam down the back panel and top, plus the original wadding placed as follows: 1 sheet folded and placed in the top of the cabinet. 2 sheets loosely rolled and placed lenthways, on on top of the other, down the front section below the midbass -NOT THE TL VENT. 1 sheet folded and placed on the back panel - DONT BLOCK THE TL VENT. The final sheet placed loosely, directly behind the midbass driver. You should have a couple of peices left over but this is fine. See pics here if your interested:
http://www.23hq.com/2007snowdon/album/3106964
Feel fre to ask questions/comment on the above.
Cheers,Mike.