Using the Roland SDD-320 Dimension D couldn't be simpler! It simply has a series of five buttons that will give you a range of different amounts of stereo chorus. All you have to do is patch through to this and let it do the work. You really don't need to know much to use this! A manual shouldn't be necessary for this reason...
The Roland SDD-320 Dimension D is undoubtedly one of the best chorus effects that I've used to date. It sounds really lush and full, and it sounds so good that it really doesn't matter that there aren't parameters to tweak the sound. It's also great for spatial effects and for stereo spreading. I've only used the SDD-320 Dimension D on electric guitar and a Fender Rhdoes, and on both it sounded truly awesome. It pretty much does what it does without room for tweaking, but what it does sounds great!
The Roland SDD-320 Dimension D is a classic effects unit that's pretty well sought after, as you aren't going to see too many of these around. Those who do own one of these will surely want to hold onto it, so chances are you're not even going to see too many of these changing hands as it's one of the best stereo chorus boxes ever made. If you ever get a chance to try this thing out, throw anything through it and hear the magic!