The Woo Audio WA7 is a mighty fine headphone amplifier. It isn't without its downsides, but it is one of the best options available in this price range. You can't go wrong with Fireflies. Gear seen in this video: Woo Audio WA7 Resonessence Labs Concero HD DAC Schiit Modi DAC Audeze LCD-3 Headphones Sennheiser HD 650 Headphones BeyerDynamic DT990 600 ohm Edition Headphones Denon D7000 Headphones Audio-Technica ATH-M50 Headphones More info - http://wooaudio.com/products/wa7fireflies.html Follow Snazzy Labs on Twitter - http://twitter.com/snazzyq Follow me on FB - http://facebook.com/thatsnazzyiphoneguy Follow me on Insta - http://instagram.com/snazzyq Follow me on Snapchat - SnazzyQ