I haven't compared all products in this space. But I would say that on SQ the ID40 does trump anything else that I've played.

However, the SB3 via digital to G68 & DSP was very close to the 598 that it replaced. The modified SB+ was better than that and (as detailed a few years ago here on HH) gave a very interesting afternoon's listening test with a standard 800 player. Given the price difference it was quite a result.

So, I would not agree with Dolf's suggestion that all streamers are giving away something in SQ. They aren't all the same.

Rgds,
Nick