Most heatzink-reviews at <!-- BBCode auto-link start --><a href="http://www.frostytech.com/" target="_blank">www.frostytech.com/</a><!-- BBCode auto-link end --> have noise-samples that one can download and listen to. Just click above link and then the Heatzink menu-alternative. Can be helpful.
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Frostytechs heatzink-reviews adds noise-samples
Moderators: NeilBlanchard, Ralf Hutter, sthayashi, Lawrence Lee