Welcome. Lots of Norway boys here , sadly we lost one recently.
L96 / 4313 are indeed a good suggestion but you mention the 240Ti. For some reason it does not get the love the components would suggest , however I have a cunning plan for you if you could find a pair.
The Bass driver is superb , same as in the 250Ti so no problems there. Perhaps the problem is with the midrange not working down to the bass driver ??
Here is the plan , given that the 240 is NOT a bad speaker by any means , and will be a step up from the L26 , then if you can find a rescue pair this is what I suggest. Live with them for a while and research this :-
Remove the mid and tweet , cut a hole to suit the square 100 x 100 deg wavegide. ( pt-h1010 )
yes it fits , and then using the knowledge and resources available in these forums add the compression driver of your choice to make a stellar 2 way horn based system. You will of course need to re make the crossover networks to suit.
There is a member in Norway who I'm sure will help you with this.
You can help this along by selling the 044ti tweets , they are worth some money.
The horn / driver combinations are discussed in depth here :
http://www.audioheritage.org/vbullet...er-Comparisons
Or you could use the 2344 horn from the 4430 with a 2426 driver. The crossovers for this are well documented in these forums.
The 240ti box could use some internal bracing but that's easy and its a nice looking box.
End result - a top notch 2 way horn system that will have the JBL sound and that you will be proud of for many years to come and best of all without spending a kings fortune.
M
PS Others will probably disagree to this but hey , its my 2Kr worth