If you care to youtube these. No longer in production. These sound much different than a phase 90 (Jazz etc). It is very easy to hear the distinction. these are getting hard to find.-Shawn. NAME & PHONE #; # required for response .Selling to upgrade ..-Shawn. These are for rock. You would have a problem, in the event you were looking for a Steely Dan sound. Like new in box! these are going for 175+ on reverb.com. This includes boz and power adapter as well. These are going for 200+ on Reverb.