Sony has decided to downsize with their latest speakers. The 5.1 HT-IS100 system has 4 small 43 x 43mm speakers weighing about 70g. With a maximum output of 425 watts, it has a 3-prod HDMI input for the S-Master audio system. The company is also offering their HT-CT100, a 3.1 one speaker combo with one subwoofer, and a front center speaker with a 250W output. We always appreciate when Sony starts thinking mini.