I have available a Krell FPB 400cx. The 400cx is a Full Powered Balanced X-Series amplifier. The 400cx uses Krell&＃39;s "Sustained Plateau Bias III" circuitry. This technology enables the amp to maintain pure Class A operation regardless of the demands placed upon the unit. The 400cx also uses Krell&＃39;s proprietary out put design. This technolgy known as "CAST II" is said to improve performance over previous Krell designs. The improvements are in the areas of speed, precision, dynamic range, depth and width of soundstage, transient impact, tonal balance, harmonic distortion and Musicallity. The 400cx uses dual transformers, unlike it&＃39;s little brother(FPB 300CX), which uses onl one. Power output is modestly rated at 400wpc=8ohms/800wpc=4ohms/1600wpc=2ohms. The dimensions of the 400cx are 19"W x 10.3"H x 19.7 D. *If you wish to check out more specs you can go to(www. Krellonline. Com/HTML/m_ClassA_p_FPBs_400cx. Html) If you would like to read a review simply click on the provided [LINK]. The amp is in "like new" condition with low hours. Included is the original box(I will double box), packing, manual and the optional remote(for turning on/off). According to the Audiogon Bluebook the average sell price of a Krell 400cx is $6090. (one just sold for $5995). The lowest one has shown to be sold for is $5420. At $5299. Delivered via FED EX ground(lower 48), this is certainly a nice deal. If you are in the market for a reference amp that is musical, detailed and has authoritative control over the lower frequencies, you should strongly consider the Krell 400cx**US Shipping Only(lower 48)Sorry no non-members.