Yamaha has entered the iPod accessory market, introducing four new iPod specific audio products, the PDX-50, PDX-30, TSX-130, and TSX-120. Each model also aims to provide high-quality sound using a recently designed digital amplifier. The PDX50 model includes wireless control using Air-Wired technology, supposedly transmitting audio in a lossless stream. The 'dock less' system wirelessly connects
