I'm pretty new to the audiophile scene although I've had my share of quality audio equipment over the years and played piano professionally. Every ear is different. I hear pianos that I describe as warm and rich; others tinny and lifeless. Same for audio systems. If warm and colorful is what pleases your ear, then pursue tubes. Yea it may "color" the digital crispness, but hey, it's your ear and your money. I feel the same way and feel like I warmed up my digital streamer McMB100 by using the DAC in my Aesthetix Romulus eclipse. As a CDP the Romulus gives me a warm sound I really love. Colored? Maybe. But it's my ear and mummy net. It's played through my McC52, Aesthetix Atlas eclipse and Burmester B30s. My point is tubes are noticeably warmer for digital and analog So go for what you love to hear. Audition equipment n a way to isolate and appreciate their sonic differences.