Hello, I've been experiencing some high pitched noise out of my Topping E30. This only occurs when I'm playing through non-exclusive driver methods, (eg. ASIO and WASAPI Exclusive are fine, WASAPI has this problem). Does anybody know what might be causing this? Thanks, ~RKarim

Hello, I am currently looking for a DAC to replace my Topping E30, under $300. I want to use this with a pair of Stax L700's and my HD650's. I use an SRM-323S + an SMSL SP200. Suggestions would be appreciated. Thanks, ~RKarim

Hello, I currently own the HD 650's from Sennheiser, and I'm looking for an upgrade somewhere within the low $1000's (1200-1300 preferably, however adaptable). As far as sound is concerned, I'm looking for something quite detailed however not overly bright. I like the sound of my current...