If you've been listening to Thiels, you've become accustomed to time-correct, phase-coherent speakers with first-order crossovers. The logical thing to do, then, is consider a couple of other manufacturers who also make speakers with the same design characteristics: Vandersteen and Meadowlark Audio. Vandersteen's 2CE is often available (used) for around $900-1000, and the same is true for Meadowlark's lowest-priced model. The Vandy 2CE is warmer sounding than your Thiels, and is a 3-way design and thus will usually have more bass response than the 2-way Meadowlark.
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