Instruct: Classify the given review into positive or negative sentiment.
Query: Fantastic sound quality

Amazing clarity!! The best this great classic has ever sounded, IMO. Thank you, Audio Fidelity!Using Windows Media Player 11 on Windows 7 (64 bit OS), with an installed 24-bit HDCD capable Creative Labs sound card (model Xtreme-Fidelity), and Creative Labs 7.1 surround sound speakers.