dynaudio special fortyDynaudio Special Forty A compact speaker with extraordinary sound and elegance Dynaudio Special Forty is the manifestation of 40 years of groundbreaking research, and the result is outstanding. Special Forty is the pinnacle of Dynaudio's dedication to authentic sound reproduction. From the subtle whisper of a string quartet to the deep roar of a bass, Special Forty delivers a sound experience that exceeds expectations and raises the bar for speaker