Pro Integrated AmplifierClick here to download a copy of this products Manual It is great to be able to copy your music onto an SD card for your phone or onto an MP3 player. You can take your entire music collection with you wherever you go. For DJs and bar owners, that handy little piece of storage is a Godsend. However, the sound quality you get out of plugging your memory stick or card into a stereo just won't cut it. You need to put the music through an amplifier before