Fwiw, I have a pair of Mirage MRM-1. They did not make many of this model -- it's not a typical mirage speaker. They Are smallish standmounts. So, no way they could
Compete with a big tower from the looks of them...
BUT....each weighs about 45 lbs (without the stand, just the speaker). They are made with mdf sandwiching a 3mm welded steel box, veneered in cherry. The front baffle is 2 inches of corian. The "tiny" woofer has super deep excursion and a voice coil the size of a small subwoofer. The rear port is tuned perfectly. Put these on lead filled stands, 3-4 feet from the back wall in a 15x24x10ft room with lots of openings to other rooms and the bass these things produce is unbelievable. And tight. And integrated with clear mids and highs.
Look, they are never going to be as good as bigger speakers for really bass heavy music at rave high volumes...the little woofers will start to break up and distort. But they were not designed for that -- rather they are pretty linear, well balanced, mid-rang warmth monitors with a slight rolled off high end (a bit British...A bit like old school spendors)