By far, the cheapest items in Nordost's line of QRT Audio Enhancers are the QVIBE2 AC Line Harmonizer (MSRP $349.99) and QKOIL1 AC Enhancer (MSRP $249.99). While the cost may be modest, the performance gains claimed in the product descriptions are not. If they even came close, this pair of tweaks would be a godsend... Read More »

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