Yamaha has rolled out two new USB-based mixers that could turn your Mac or Windows PC into a home studio. The MW10 and MW12 feature, respectively, 10 and 12 inputs, including XLR, 1/4-inch phone jacks and RCA jacks. Both units also come bundled with Cubase LE software. The MW10 has a suggested retail price of $249, while the MW12 goes for $379.