Graham,

Since purchasing the PSR-3000, I've had to modify the settings for all my mics. The onboard processor is a bit different that the PSR-2000, which is where the orriginal settings came from.

The Crown CM-311-A has been a fantastic headset mic, particularly when it comes to vocal quality. It's not the most comfortable headset mic I've used, but I expect to modify the headgear in the near future to overcome this.

Anyone that has enjoyed the freedom a headset mic offers, and has the ability to utilize voice control for personalized effects, will really love the Crown CM-311-A. I purchased mine on the advice of Eddie (Btweengigs) and can honestly say it was well worth the investment.

Gary