A friend of a friend is offering me a GK 700RB/115 for $300 and I checked the retail price and it goes for $1100! I've played on it and it sounds great. All the controls work exceptionally well. I went to my local guitar center and even tried out the 700RB/112 (same amp with 12" speaker) and I could tell little difference between the amp (besides bigger sound on the 700RB/115) Anything I should check for because i don't want to get ripped off. This amp has such warm lows and highs. I hear Galien-Kreuger make kickass amps so I want to buy this.