I owned an A10 for a few years. Model getting long in the tooth. Hard drive failure in my unit
sounds good but not nearly as detailed as a Lumin T-2 Depending on your system the Lumin could get fatiguing over time
If you can live without an internal HD the Cary 650 might fit the bill. Sounds much better than an A10 and with no fatigue. I had a Cary 600 and now own a Cary 700.
Cary fixed a few software glitches and is solid as rock