The DQ-10s are inefficient and need plenty of power. Dahlquist never published their sensitivity rating, but it's somewhere in the neighborhood of 85 dB. Your Jolida 202a puts out 40 watts which should be able to drive them to a moderate level (97-100 dB). Why don't you live with this combo for a while and decide later if you need more power? Your room is relatively small which plays to your advantage.
The 10s are not too finicky with placement. You'll have to experiment and find out what works best for you. I've had great results following Cardas's suggestions.
The 10s are not too finicky with placement. You'll have to experiment and find out what works best for you. I've had great results following Cardas's suggestions.