I've enjoyed the superb recordings of the Flanders Recorder Quartet on Aeolus very much.../search/Flanders+quartet.
So, I was delighted to come across this BIS recording of the Sirena Recorder Quartet. A variety of works from the Medieval/Renaissance/Baroque eras and several from the 20th & 21st centuries allows the Sirena Recorder Quartet to display their impressive technique and beautiful tone colors. As with pipe organ recordings, Multichannel surround sound gives a natural bloom to this wonderful performance. 2-ch stereo is also good.