Hi Bar81,Are you using it as a DAC only or are you using the volume control?
Like you, I am using the TX2 with an Aural Symphonics cable to the upgraded DA2v2. After nearly a monthly listening to the V2, I consider it a masterpiece from EMM. Though others consider bass as the biggest improvement, for me the accuracy of musical instruments' timbre and delicacy is the chief improvement. Strings have been a weak point of digital components and this is the first time I hear such sweetness from strings. Piano has a realism that's a first for me.