An excellent drum machine for the price. You can get them a lot cheaper than list if you shop around. It's got built-in reverb/delay and chorus/flange, responsive velocity- and aftertouch- sensitive pads, and powerful capabilities for editing sounds, including decay and pitch shift. Also has slap bass and synth bass sounds (useful for sketch work - too cheesy to use for a finished piece). My opinion? Cool! Even with as many features as it has, it's very easy to use. The reverb is pretty good, the delay isn't bad; the chorus and flange could use a little work but aren't bad. The samples are pretty useable, and you can create totally new sounds by tweaking the preset samples. A phat box
Comments About the Sounds:
A wide variety of sounds, including reverse samples, ambience, TR-808 and 909 samples (no full set of the 909 though - poo!)
one of SLAVE's band sites "Slave To Dr. Rhythm" is an artist who uses only the DR-660. This is link is a band he's featured in- Satan's Florescent Drum Machine