It still has the vinyl sim so you can use the flutter function on it. Sounds pretty nice on synth samples and stuff. They removed the compression part of this effect and added a filter instead.

I used to have an OG and that "flying lotus" trick was a neat workaround, but nothing beats Copy and pasting on the 404sx

How about the swing quantize on the sp404sx. I would say that's a neat improvement over the old 404. On the sp606 I really only use the swing quantize.

The filter is great from removing the "tin" from the lo-fi button.

SX > OG cause i can put food in the battery compartment

Stash spot.

Lol!

I own both models and the pattern copy feature is what makes me lean to the 404sx. It really helps with work flow and has made me contemplate on buying a second one.