Amazon - Echo Studio (2024) vs Sony - HT-A9

The HT-A9 edges ahead on the Mars Score (92 vs 95), but the 3.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.

Pick the Echo Studio (2024) if you care most about matter / thread. The biggest gaps in its favor are matter / thread.

Pick the HT-A9 if you care most about output. Its strongest claims are output.

Both ship with comparable dolby atmos, so those specs don't separate the two — focus on the differences below.

Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.