Bogren Digital Bassknob STD

If you don't want to spend a lot of time endlessly tweaking parameters to get a good bass tone, this Bassknob is a good choice. However, its very simplicity and bare-bones structure (coupled with the fact that there's definitely lots of stuff going on under the hood) might be a turn-off for some. Personally I'd prefer some more customization options for the tone, but this is great to slap onto a bass track when you're doing a demo for instance and don't want too big of a hassle.