I have not heard the Levinson, but I know many audiophiles hold that brand in high esteem. I had pulled the trigger on the A21 and really like it. If I were to change amps I would only go with mono amps or an integrated amp in the $5k range. That is how much I like the A21. BTW I used to own about six or seven other brands, including the often talked about Odyssey brand. The Parasound Halo was much better. I know there are better sounding amps, I heard a Musical Fidelity dual mono integrated (M6 500i) that was better, but again in the $6k range. The A21 is like a taste of champagne audio on a beer budget.
