Just ordered one on Drop earlier. If you happen to get the HD650 mods done, I'll be also interested. ;-)

$310 is a no-brainer.

Where did you get the Sabaj D5 for $350? I would get one if the price is $350. It's $469.99 now on Amazon. Considering the Sabaj D5 that is also using single ES 9038 PRO chip, I guess the SMSL M500 price is comparable at least in the same range. But we will all soon to know the exact answer...

The M500 is just $499.99. This is a killer, considering it uses the ESS9038PRO chip? https://www.aliexpress.com/i/32977645364.html