IMO 1531 betters AA Cap mk II SE in ALL areas. For starters - the bass is much deeper and better defined. It came as no suprise since AA has tube output stage and its bass berformance have never been it's forte. The surprising part was a midrange performance - much fuller, richer, with an uncanny "unprocessed" quality to it.
The highs are better too - smoother and more detailed at the same time. Stage is better focused, stage depth is MUCH better.
All in all - when I think about AA right now, I cannot think of single performance area where AA could actually better the MBL.
The highs are better too - smoother and more detailed at the same time. Stage is better focused, stage depth is MUCH better.
All in all - when I think about AA right now, I cannot think of single performance area where AA could actually better the MBL.