Smart USB speakers pump up the volume from laptops

 作者:凌硪午     |      日期:2017-09-26 03:01:00
By Paul Marks THE tinny fizz produced by most laptops’ built-in speakers makes them far from ideal for listening to music. But plug-in speakers will soon be available that produce high-quality sound from portable PCs without the need for mains power. The sound from existing computer-powered external speakers is often disappointing because the USB port, from which they get their power, can supply only 2.5 watts. Now the British firm NXT of Cambourne, Cambridgeshire,