SML Paris A420 vs A620

[sax55]

Hello, I have decided to learn to play sax. I consider buying either SML Paris A420 or A620. I'd like to know the differences between the two:

-tonal differences (bright, warm, rounded, edgy, etc..)
-body material, pads, springs
-reliability
-double arms of A620 vs. single arms of A420, is it important?

Thanks in advance for the answers.

[Matt BNDM]

Hi Sax55,

The A620-II has a finest completion, especially with the Keys. The double arms allow a better adjustment stability. The ergonomics of the deep range keys facilitate the playability. The sound is warm and round