Update - I bought them both, and love them. For $71, I now have three CD players in essence. The stock one with the OPA604 op-amps, the OPA 627 which gives an even deeper soundstage, and the AD825 that seems yo have more bloom.
I love the sound stock, but the upgrades are fun. This is a much better deal than expected. The Tjoeb rules!
I love the sound stock, but the upgrades are fun. This is a much better deal than expected. The Tjoeb rules!