If you're looking for a reference IEM packing a well extended powerful and fast bass, an articulate midrange and an engaging treble both with accurate tone then at the asking price it's hard to find a better proposition than the Serial. Serial addresses the demanding audiophiles on a budget and it's quite refreshing in a bullish market in the upper tiers. On top of this Serial will scale superbly with more power and an affordable desktop amp is a great option to enjoy all it can offer.