Can't spend the money on another Lepai. I just ordered a 2nd Indeed TA2021 for another setup in the house
I did a lot of googling before I bought the Indeed. There's lots of discussion of how a better PSU (like the one with the Indeed) helps the Lepai. Read discussions of people modifying the Lepais to improve the sound, one of which described the Indeed t-amps as doing everything mostly right in terms of design compared to the Lepai (seemed to be some agreement on that). Then there was this review
where someone compared the Lepai 2020 and the Indeed TA2020, finding the Indeed to be a little better in sound. This review described the TA2021
that I ordered as comparable in SQ to the Toppings, which are generally considered to sound great. Then I found some tests that show that a TA2021 generally has about 3db more headroom than the TA2020. Meanwhile, the tone control is not a loss because it reduces SQ (the Lepai modders love to complain about that); better to EQ with the source device. When I tried the tone control, definitely degraded the sound a little.
So when you think about it, if you buy two Lepai TA2020s, that's only an extra 3db more output than one, which makes it the same as the TA2021. If someone was also going to do the PSU upgrade, that makes dual Lepais cost over $60. Not that much more to go with the better build quality of the Indeed, better aesthetics, and get a little better SQ