I had a TT2 with M-Scaler for a year and definitely preferred this to the TT2 alone. Upgraded to DAVE four months ago and kept the m-scaler, occasionally bypassing the sampling via the m-scaler and tbh, hearing little difference. In full-sampling mode, music sounded detailed and 'clean' - perhaps a bit too clean, especially with the sound of voice. Overall, I thought the sound was also lacking in rhythm and drive - I just wasn't being moved by the music. I disconnected the m-scaler and fed the DAVE via usb directly from my Zenith Mk3. The difference in sound from the DAVE alone was huge! Soundstage widened, voice sounded natural and forward, rhythm and drive were there in abundance. Surely this couldn't be right? It was contrary to what most people had said about adding the m-scaler. After a week I reconnected the m-scaler. Soundstage narrowed and singers retreated back into the band and sounded cleaned up. But . . . the m-scaler's strength lay in its ability to present the instruments in a band, the musicians, as playing together, Drums sounded so well integrated and complemented bass lines. I played a Gong live album (yes, I'm bit of an old hippie) that I'd heard many times and for the first time I thought 'These guys actually play well together!' So, sometimes I use DAVE alone via usb, sometimes I use the m-scaler - all really depending on what mood I'm in. btw, I found the headphone experience is much better with just the DAVE.