I have been a long time Carvin User for YEARS. I have owned and do own several Carvin instruments and amplifiers etc. I recently downsized my bass rig and have been really happy with the Lightweight Carvin BX500 bass amp. It has great tone, is extremely versatile, and weighs less than my iPad (or seems like it anyway). My trouble came when I tried to take use of the foot switchable mute and Graphic EQ. accessible by front panel switched has been fine for a while, but i love to option to set the Graphic almost as a separate channel, or to compensate for a dissimilar instrument. I have a Carvin FS22 Footswitch lying around that I use with my X100B guitar head and I used regularly with my BX1200 Dual Mono Block Bass Amplifier (another Gem IMO) I couldn't get the FS22 to work at all with my BX500, although I did notice a flicker on the related front panel LEDs when Inserting or removing the 1/4" TRS jack on the FS22 Well I relayed ALL of this information to Carvin Customer Service and asked , politely, if there was anything I had possibly overlooked (I know the front panel switches have to be engaged on the X100B and BX1200 in or for the FS22 to operate) or if there was something I could take a look at that could be causing the issue. Knowing that the FS22 functions properly with BOTH the other amps, I am assuming something in the BX500, wouldn't you? Here are the email responses I received.... "The BX500 only uses the FS22 footswitch; no other type of footswitch will work with this unit." --Steve Schisler "How is it possible that you are using an FS22 on your X100B amp? The original X100B takes a 3-pin XLR style footswitch (FS36) and the recent re-issue model takes a 5-pin (FS44L) and neither model accepts a standard 1/4in plug like the one used on the FS22; the BX500 and BX1200 both accept the FS22 so your original statement about using this particular footswitch on your X100B is rather confusing to us. Unless there is an issue with the actual footswitch itself, then there may be a problem with the footswitch jack on the amp head that would need to be addressed by a service technician. You are welcome to call 1-800-854-2235 and ask to speak with one of our amp repair techs anytime Mon-Fri between the hours of 8:00am and 2:00pm PST. Thank you, Carvin customer service" -- Joe Stone Now there is just so much wrong with these responses it is ridiculous!! NEITHER response has any regard really to my initial question which was was there something I amy have overlooked or something I should take a look at. I Absolutely Positively included the fact that I was using a FULLY FUNCTIONAL FS22 footswitch. Here's the even better part. The first response, regarding the FS22 being the only footswitch that will work onhte BX500...WRONG!!! It clearly states in the manual that "Any Standard Footswitch with a Stereo (TRS) Plug will work. Dont Believe me, check it out http://www.carvinguitars.com/manuals/BX500-single-pages.pdf The second email was even better though. Remember he stated that there was only a 3 pin and a 5 pin Footswitch Jack on the X100B and X100B reissue amps, respectively. Well I don't know about anyone else's, but this is how mine looks.... http://www.carvinguitars.com/products/X100B Oh wait, Thats Carvin's Own Website pictures!!! What a complete A Hole Anyway, In just one afternoon I have went from a LOYAL CARVIN fan to a bitter and defeated loser in the battle of lies. I can honestly say that Carvin gear will NEVER be on my list of new purchases ever again. Hell their own employees lie to you about their own products! Thank you for those who stuck with me and have read this far. I know there have been Carvin Horror stories in the past, and mine pales in comparison to many, but that really got me worked up for some reason. I just had a simple question and what did I get a Pack of Lies from two different employees. F&*k Em'