The 777 is downright the closest clone next to the ML-303. I use a FreeBass 383. I like it. The filter is a but wet sounding, kinda like the 777, when sequencing it with Techno Toys' SEQ-303 software sequencer, it sounds great. I just record the sequences into my MMT-8 when i find something i like. But i also have a real 303 too...so i use that the most=o]