This is my first post so I feel some sort of introduction is in line. My name is Caleb Buck, I play guitar/bass/piano/drums, I live in SW Missouri with my wife and two French Bulldogs. Now to the point. I picked up my Reason SM25 combo (along with an empty headshell) on Monday. I'd figured I'd give myself a few days to spend with it before I posted anything on here. For anyone that is unfamiliar with Reason amps here's a link to their site: http://www.reasonamps.com/ These amps feature two very different channels, the Bright channel, and the Normal channel. The bright channel contains a volume and a tone knob with a "thick" pull switch on the volume knob. The tone leans more towards to Vox-ish side of things. The cleans are chimey and gorgeous. Once the volume gets past 9 o'clock it can really start to get dirty. The tone knob really helps to control how much hair you want on your breakup. Midrangy and raunchy comes to mind. The normal channel features a volume, treble, middle, bass, and a "bright" pull switch on the volume. The tone on this channel leans more towards the Fender-ish side of things. Below 9 o'clock the cleans are warm and full. pulling the bright switch really makes my Les Paul sound glassy. Once you get past that the breakup really begins. Vintage tweed tones are a cinch to dial in. My favorite of the individual channels for sure! Next you have "Stack Mode". This is where the amp really gets interesting. Stackmode uses both channels in series ( I believe the Bright Channel is first) which then goes into an additional gain stage followed by added Cut and Master Volume knobs (only used in Stack mode). Marshall-esque tones are easily achieved on this channel along with about a million other tones that I had no idea existed. Don’t think this channel is only for high-gain. You can dial in everything from super clean to uber heavy tones. Trial and error was my method with this amp until Obeid (the designer) told me this: Think of the Bright channel as an overdrive pedal And the Normal channel as the amp being driven. I find this the easiest way to decide how to dial in my tone. It is pretty cool how interactive the controls are in Stackmode. If you were to take the volume on the Bright channel down a notch and the Normal channel up a notch the amp can take on a totally different feel, almost as if you are now playing a different amp. I find that I like to have both channels somewhere between the 9 and 3 o’clock range. After that I adjust the tone knob on the Bright channel to control how much hair the gain has and I use the tonestack on the normal channel to control the overall eq. My 2 cents. This amp is truly like having about a dozen different ones. A true joy to play. Anthony and Obeid are two super nice and down to earth dudes and the expertise they share is quite impressive. It has been a pleasure and an honor to become a member of the Reason family. Many thanks to Obeid and Anthony!