I can's speak about Pass Int-250, although I had always wanted to try one, but I can certainly tell you that you will be very happy with an MSB DAC.
I could only afford their entry level, the Discrete, and it's an excellent DAC. I have tried over a dozen DACs over the past few years, and by far, MSB is the best for me, and don't feel the need to upgrade now, since I bought it. And if I ever decided to upgrade the DAC, would still be for a MSB, the Premier. Unfortunately, the price doubles from one model to the next, tough pill to swallow
I could only afford their entry level, the Discrete, and it's an excellent DAC. I have tried over a dozen DACs over the past few years, and by far, MSB is the best for me, and don't feel the need to upgrade now, since I bought it. And if I ever decided to upgrade the DAC, would still be for a MSB, the Premier. Unfortunately, the price doubles from one model to the next, tough pill to swallow